CN214043716U - Lead-acid storage battery polar plate grid - Google Patents
Lead-acid storage battery polar plate grid Download PDFInfo
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- CN214043716U CN214043716U CN202023118416.3U CN202023118416U CN214043716U CN 214043716 U CN214043716 U CN 214043716U CN 202023118416 U CN202023118416 U CN 202023118416U CN 214043716 U CN214043716 U CN 214043716U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a lead acid battery polar plate grid, including utmost point ear, horizontal frame, perpendicular frame, horizontal muscle and diagonal muscle, horizontal frame and perpendicular frame constitution frame structure, utmost point ear are established at the outside left end of the horizontal frame in top, and the diagonal muscle extends and mutual parallel arrangement from upper left side to right side below slant, and interval between the diagonal muscle is less than the interval between the horizontal muscle. The width of the tab is gradually increased from the top to the bottom of the tab, and the joint of the bottom of the tab and the transverse frame is in arc transition. The top of the tab is of a wave-shaped structure. The cross sections of the transverse ribs and the inclined ribs are drum-shaped structures. The utility model provides a lead acid battery polar plate grid, structural strength and stability are high, and the conduction that are favorable to the electric current are even, and active material's conversion is even, has effectively prolonged the life of battery, to active material's holding power and with active material's cohesion strong, can effectively restrain active material to soften and drop, corrosion resistance is high.
Description
Technical Field
The utility model belongs to the technical field of lead acid battery accessory technique and specifically relates to a lead acid battery polar plate grid.
Background
The charging and discharging of the lead storage battery are mainly completed by the plate grid. A traditional grid type polar plate grid comprises a quadrilateral frame, transverse ribs and vertical ribs which are criss-cross in the frame to form a net structure, and a pole lug. The main function of the grid in the battery is lead paste, i.e. a carrier and a conductor of an active substance. The lead plaster is filled on the grid and is solidified and dried to form the polar plate, the polar plate is the core of the storage battery, and the grid is like a framework, so that the whole polar plate has strength. The electric quantity transmits the board ear of grid from the outside when the battery charges, and the board ear transmits the top frame, and the top frame transmits left and right sides frame and inside horizontal muscle and perpendicular muscle, transmits the bottom frame at last, and the battery discharge order is just opposite.
With the above conventional grid structure, there are the following problems:
1. the structural strength of the grid is poor;
2. is not conducive to current conduction. The traditional vertical rib design can cause longer current conduction path and low output power, the grid mainly conducts and collects current through the vertical ribs, but the vertical ribs of the grid are generally more sparse than the transverse ribs, the current density at the upper part of the grid is large during charging, the current density at the lower part of the grid is small, so that the conversion of active substances of a polar plate is uneven, when a battery discharges, the vertical ribs are less, the uniform transmission of bottom current is not facilitated, the transmission of bottom current is difficult, the utilization rate of the active substances is low, the uneven corrosion of the grid is finally caused, the softening and falling of the active substances are aggravated, and the service life is short;
3. the cross section of the rib is generally rhombic, and the corrosion resistance and the bonding force with active substances are poor;
4. when the grid is assembled, the bottom of the grid is directly contacted with the shell and is easy to deform under stress;
5. the upper part of the grid, namely the intersection of the transverse ribs and the vertical ribs on one side close to the tabs, is seriously corroded;
6. and (4) sulfating active substances on the lower part of the grid. When the grid is in cyclic use, the active substance at the lower part of the grid is far away from the lug, and the current passing in the charging process is small and slow, so that the active substance at the lower part of the grid is insufficiently charged, and the sulfation of the active substance at the lower part can be caused for a long time, namely hard and irreversible lead sulfate is generated, so that the utilization rate of the active substance is reduced, and the capacity of the storage battery is insufficient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a lead acid battery polar plate grid is provided, can overcome the not enough of above-mentioned traditional grid structure existence.
In order to solve the technical problem, the utility model provides a lead-acid storage battery polar plate grid, which comprises a pole ear, a transverse frame, a vertical frame, a transverse rib and an inclined rib, wherein the transverse frame and the vertical frame form a frame structure, the pole ear is arranged at the top part of the left end of the outer side of the transverse frame,
the diagonal ribs extend obliquely from the upper left side to the lower right side and are arranged in parallel, and the distance between the diagonal ribs is smaller than the distance between the transverse ribs.
According to the technical scheme, the vertical rib design of the traditional grid is optimized to be parallel to the inclined rib design, the structural strength of the grid can be improved by utilizing the principle of triangular stability, the conduction path of current can be reduced, the conduction of the current is facilitated, particularly, the inclined ribs which are near the lugs, are connected with the top transverse frame and extend to the diagonal positions from the bottom can enhance the current transmission at the bottom corner of the farthest end with the weakest current transmission, the internal impedance of the battery is reduced, the internal voltage drop of the battery is reduced, and the high-power output of the current is facilitated.
In the technical scheme, the distance between the inclined ribs is smaller than the distance between the transverse ribs, namely, compared with the prior art, the distance between the inclined ribs corresponding to the vertical ribs in the prior art is reduced, namely, the inclined ribs are increased, so that the uniformity of current conduction and the uniformity of active substance conversion are facilitated, the grid area is reduced, the conductive framework of the active substance is increased, the supporting capacity of the grid on the active substance is improved, the active substance is prevented from softening and falling off, and the service life of the storage battery is prolonged.
The spacing between the oblique ribs is the same.
Preferably, the width of the tab is gradually increased from the top to the bottom of the tab, and the joint of the bottom of the tab and the transverse frame is in arc transition.
In the technical scheme, the design of the lug can enhance the connection strength of the lug and the frame structure, and the arc transition can avoid stress concentration and reduce the fracture or deformation failure rate of the lug.
Preferably, the top of the tab is of a wave-shaped structure.
Compared with the zigzag or plane design in the prior art, the wavy design at the top of the tab in the technical scheme can increase the butt joint area when the tab is welded with a bus bar, and improve the welding seam connection strength after welding.
Preferably, the cross sections of the transverse ribs and the inclined ribs are drum-shaped structures.
In the technical scheme, compared with the traditional rhombic design, the drum-shaped cross section design of the transverse ribs and the inclined ribs can enhance the corrosion resistance of the ribs and the binding force with active substances.
Preferably, bottom buffer frames are symmetrically arranged on the outer sides of the transverse frames at the bottom, and the bottom buffer frames are semicircular or trapezoidal annular.
Preferably, the bottom buffer frame is made of acid corrosion resistant plastic.
In the technical scheme, the semicircular or trapezoidal annular bottom plate buffer frame can buffer the acting force between the grid and the bottom of the shell when the battery is assembled, so that the stress deformation of the bottom of the grid after the grid is directly contacted with the shell is avoided, and the stability is improved.
The bottom buffer frame made of acid corrosion resistant plastics can be clamped at the bottom outside the transverse frame, so that the bottom buffer frame is convenient to detach and replace.
Preferably, reinforcing columns which extend and thicken along the radial direction and are circular or elliptical in cross section are arranged at the intersection points of the transverse ribs and the oblique ribs in the height range of the upper part 1/3-1/2 of the frame structure.
The design of the reinforcing column in the technical scheme can effectively solve the problem that the intersection of the transverse ribs and the inclined ribs on the upper part of the grid, namely the side close to the lug, is seriously corroded, reduces the corrosion rate of the intersection which is most easily corroded, and prolongs the service life of the storage battery.
Preferably, the joints of the transverse ribs and the vertical frames, the joints of the inclined ribs and the transverse frames and the vertical frames are provided with semi-cylindrical or hemispherical fixing bodies.
According to the technical scheme, the connection strength of the transverse ribs and the inclined ribs with the transverse frame and the vertical frame can be improved through the design of the fixing body, and the integral structural stability of the grid is improved.
Preferably, an auxiliary diagonal rib parallel to the diagonal rib is arranged between the diagonal ribs within the height range of 1/3-1/2 at the lower part of the frame structure.
According to the technical scheme, the number of ribs at the lower part of the grid is increased through the design of the auxiliary inclined ribs, the current conduction capacity and uniformity of the lower part of the grid are improved, the condition that final sulfation occurs because the current passing through the lower part of the active material is small and slow in the charging process and is insufficient for a long time is avoided, the utilization rate of the lower part of the active material and the conversion uniformity of the whole active material of the grid are improved, and the service life of a storage battery is prolonged.
Preferably, the corner of the frame structure is provided with a corner vertical reinforcing rib and a corner oblique reinforcing rib.
According to the technical scheme, the design of the corner vertical reinforcing ribs and the corner oblique reinforcing ribs can enhance the structural strength and stability of the corners of the grid.
The cross sections of the auxiliary oblique ribs, the corner vertical reinforcing ribs and the corner oblique reinforcing ribs are drum-shaped structures, and semi-cylindrical or hemispherical fixing bodies are arranged at the joints of the auxiliary oblique ribs, the corner vertical reinforcing ribs and the corner oblique reinforcing ribs and the transverse frames and the vertical frames.
In summary, compared with the prior art, the lead-acid storage battery polar plate grid provided by the utility model has high structural strength and stability; the current conduction path is short, the transmission internal resistance is small, the output power is high, the conduction of the current is facilitated, and the conduction is uniform; the sulfation of active substances at the bottom of the grid can be effectively avoided, the utilization rate of the active substances at the lower part of the grid and the conversion uniformity of the whole active substances of the grid are improved, and the service life of the storage battery is effectively prolonged; the support capability to the active substance and the binding force with the active substance are strong, the softening and falling of the active substance can be effectively inhibited, and the corrosion resistance is high; the direct contact stress deformation of the bottom of the grid and the battery shell during assembly can be avoided.
Drawings
Fig. 1 is a schematic structural diagram of a lead-acid battery plate grid of the present invention;
fig. 2 is a schematic diagram of the enlarged structure of the tab of the lead-acid battery plate grid of the present invention;
fig. 3 is a schematic cross-sectional structure view of all types of ribs in a lead-acid battery plate grid according to the present invention;
fig. 4 is a schematic structural diagram of the lead-acid battery plate grid according to the present invention, when the bottom buffer frame is semi-circular;
fig. 5 is a schematic structural view of the bottom buffer frame of the lead-acid battery plate grid of the present invention in a trapezoidal ring shape;
fig. 6 is a schematic structural diagram of the lead-acid battery plate grid with the reinforcing column having a circular cross section;
fig. 7 is a schematic structural diagram of the lead-acid battery plate grid with the reinforcing column having an oval cross section;
description of reference numerals:
1-pole ear, 2-horizontal frame, 3-vertical frame, 4-horizontal rib, 5-diagonal rib, 6-auxiliary diagonal rib, 7-corner vertical reinforcing rib, 8-corner diagonal reinforcing rib, 9-bottom buffer frame, 10-reinforcing column and 11-fixing body.
Detailed Description
In order to make the objects, solutions and advantages of the present invention clearer, embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely used for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The present invention will be further described in detail with reference to the accompanying drawings 1-7, wherein FIG. 1 is a schematic structural diagram of a lead-acid battery plate grid of the present invention, FIG. 2 is an enlarged view of the tab of the grid of the lead-acid battery plate of the present invention, figure 3 is a schematic cross-sectional structure diagram of all types of ribs in the lead-acid battery plate grid of the invention, FIG. 4 is a schematic structural diagram of the lead-acid battery plate grid with the bottom buffer frame in a semicircular ring shape, FIG. 5 is a schematic structural diagram of a lead-acid battery plate grid according to the present invention, wherein the bottom buffer frame is in a trapezoidal ring shape, FIG. 6 is a schematic structural diagram of a lead-acid battery plate grid with a circular reinforcing column cross section, fig. 7 is a schematic structural diagram of the lead-acid battery plate grid in which the cross section of the reinforcing column is oval.
The invention is explained in further detail below with specific examples:
in order to solve the technical problems that the traditional grid has poor structural strength, is not beneficial to current conduction, has poor corrosion resistance, has weak binding force with active substances, is easy to be stressed and deformed when the bottom is contacted with a shell, has nonuniform conversion of the active substances and finally causes short service life of a storage battery, as shown in figure 1, the utility model provides a lead-acid storage battery plate grid, which comprises a pole ear 1, a transverse frame 2, a vertical frame 3, a transverse rib 4 and an inclined rib 5, wherein the transverse frame 2 and the vertical frame 3 form a frame structure, the pole ear 1 is arranged at the top of the left end of the outer side of the transverse frame 2,
the oblique ribs 5 extend obliquely from the upper left to the lower right and are arranged in parallel, and the distance between the oblique ribs 5 is smaller than the distance between the transverse ribs 4.
According to the technical scheme, the design of the vertical ribs of the traditional grid is optimized to be parallel to the inclined ribs 5, the structural strength of the grid can be improved by utilizing the principle of triangular stability, the conduction path of current can be reduced, the conduction of the current is facilitated, particularly, the inclined ribs 5 which are connected with the top transverse frame 2 and extend to the diagonal positions from the bottom to the top near the tabs 1 can enhance the transmission of the current at the bottom corner of the farthest end with the weakest current transmission, reduce the internal impedance of the battery, reduce the internal voltage drop of the battery and facilitate the high-power output of the current.
In the technical scheme, the distance between the inclined ribs 5 is smaller than the distance between the transverse ribs 4, namely, compared with the prior art, the distance between the inclined ribs 5 corresponding to the vertical ribs in the prior art is reduced, namely, the inclined ribs 5 are increased, so that the uniformity of current conduction and the uniformity of active substance conversion are facilitated, the grid area is reduced, the conductive framework of the active substance is increased, the supporting capability of the grid on the active substance is improved, the softening and falling of the active substance are inhibited, and the service life of the storage battery is prolonged.
The spacing between the tilted ribs 5 is the same.
As shown in fig. 2, the width of the tab 1 gradually increases from the top to the bottom, and the connection between the bottom and the transverse frame 2 is in arc transition.
In the technical scheme, the design of the tab 1 can enhance the connection strength of the tab 1 and the frame structure, and the arc transition can avoid stress concentration and reduce the fracture or deformation failure rate of the tab 1.
The top of the tab 1 is of a wave-shaped structure.
Compared with the zigzag or plane design in the prior art, the wavy design at the top of the tab 1 in the technical scheme can increase the butt joint area of the tab 1 and a bus bar during welding, and improve the welding seam connection strength after welding.
As shown in fig. 3, the cross sections of the transverse ribs 4 and the oblique ribs 5 are drum-shaped structures.
In the technical scheme, compared with the traditional rhombic design, the drum-shaped cross section design of the transverse ribs 4 and the inclined ribs 5 can enhance the corrosion resistance of the ribs and the binding force with active substances.
As shown in fig. 4 and 5, bottom buffer frames 9 are symmetrically arranged on the outer side of the transverse frame 2 at the bottom, and the bottom buffer frames 9 are semi-circular or trapezoidal circular.
The bottom buffer frame 9 is made of acid corrosion resistant plastic.
In the technical scheme, the semicircular or trapezoidal annular bottom plate buffer frame 9 can buffer the acting force between the grid and the bottom of the shell when the battery is assembled, so that the stress deformation of the bottom of the grid after the grid is directly contacted with the shell is avoided, and the stability is improved.
The bottom buffer frame 9 made of acid corrosion resistant plastics can be clamped at the bottom outside the transverse frame 2, so that the disassembly and the replacement are convenient.
As shown in fig. 6 and 7, a reinforcing column 10 which extends along the radial direction and is thickened and has a circular or oval cross section is arranged at the intersection point of the transverse rib 4 and the oblique rib 5 in the height range of the upper part 1/3-1/2 of the frame structure.
The design of the reinforcing column 10 in the technical scheme can effectively solve the problem that the intersection of the transverse rib 4 and the inclined rib 5 on the upper part of the grid, namely on the side close to the tab 1, is seriously corroded, reduces the corrosion rate of the intersection which is most easily corroded, and prolongs the service life of the storage battery.
The joints of the transverse ribs 4 and the vertical frames 3, the joints of the inclined ribs 5 and the transverse frames 2 and the vertical frames 3 are provided with semi-cylindrical or hemispherical fixed connecting bodies 11.
In the technical scheme, the design of the fixing body 11 can improve the connection strength of the transverse ribs 4 and the inclined ribs 5 with the transverse frame 2 and the vertical frame 3, and improve the structural stability of the whole grid.
And auxiliary diagonal ribs 6 parallel to the diagonal ribs 5 are arranged between the diagonal ribs 5 in the height range of 1/3-1/2 at the lower part of the frame structure.
According to the technical scheme, the number of ribs at the lower part of the grid is increased through the design of the auxiliary inclined ribs 6, the current conduction capacity and uniformity of the lower part of the grid are improved, the situation that final sulfation occurs due to the fact that active substances at the lower part of the grid pass through a small and slow current in the charging process and are insufficient for a long time is avoided, the utilization rate of the active substances at the lower part of the grid and the conversion uniformity of the whole active substances of the grid are improved, and the service life of a storage battery is prolonged.
The frame structure corner is provided with a corner vertical reinforcing rib 7 and a corner oblique reinforcing rib 8.
The design of the corner vertical reinforcing ribs 7 and the corner oblique reinforcing ribs 8 in the technical scheme can enhance the structural strength and stability of the corners of the grid.
The cross sections of the auxiliary oblique ribs 6, the corner vertical reinforcing ribs 7 and the corner oblique reinforcing ribs 8 are also drum-shaped structures, and semi-cylindrical or hemispherical fixed connection bodies 11 are also arranged at the joints of the auxiliary oblique ribs, the transverse frames 2 and the vertical frames 3.
In summary, compared with the prior art, the lead-acid storage battery polar plate grid provided by the utility model has high structural strength and stability; the current conduction path is short, the transmission internal resistance is small, the output power is high, the conduction of the current is facilitated, and the conduction is uniform; the sulfation of active substances at the bottom of the grid can be effectively avoided, the utilization rate of the active substances at the lower part of the grid and the conversion uniformity of the whole active substances of the grid are improved, and the service life of the storage battery is effectively prolonged; the support capability to the active substance and the binding force with the active substance are strong, the softening and falling of the active substance can be effectively inhibited, and the corrosion resistance is high; the direct contact stress deformation of the bottom of the grid and the battery shell during assembly can be avoided.
The above is the preferred embodiment of the present invention, it should be noted that although the present invention only provides the above embodiments, but also provides many possible variations which do not need to be obtained through creative work, although still unable to be exhaustive, after reading the present specification, a person of ordinary skill in the art should be able to associate with more specific embodiments, such specific embodiments do not go beyond the spirit of the claims of the present invention, and any form of equivalent replacement or several modifications and embellishments should be regarded as included in the embodiments of the present invention, and belong to the protection scope of the present invention.
Claims (10)
1. A lead-acid storage battery plate grid comprises a lug, a transverse frame, a vertical frame, a transverse rib and an inclined rib, wherein the transverse frame and the vertical frame form a frame structure, the lug is arranged at the left end of the outer side of the transverse frame at the top,
the diagonal ribs extend obliquely from the upper left side to the lower right side and are arranged in parallel, and the distance between the diagonal ribs is smaller than the distance between the transverse ribs.
2. The lead acid battery plate grid of claim 1, wherein the tab width increases from the top to the bottom thereof and the junction of the bottom thereof and the transverse frame has an arc transition.
3. The lead acid battery plate grid of claim 1, wherein the top of the tab is of a wave-like configuration.
4. The lead-acid battery plate grid of claim 1, wherein the transverse ribs and the diagonal ribs have a cross-section in the shape of a drum.
5. The lead-acid battery plate grid according to claim 1, wherein bottom buffer frames are symmetrically arranged on the outer sides of the transverse frames at the bottom, and the bottom buffer frames are semi-circular rings or trapezoidal rings.
6. The lead acid battery plate grid of claim 5, wherein the bottom buffer shelf is made of acid corrosion resistant plastic.
7. The grid for pole plates of lead-acid storage batteries according to claim 1, wherein reinforcing columns which extend in the radial direction and are thickened and have circular or oval sections are arranged at the intersection points of the transverse ribs and the oblique ribs within the height range of 1/3-1/2 at the upper part of the frame structure.
8. The lead-acid battery plate grid according to claim 1, wherein the joints of the transverse ribs and the vertical frames, and the joints of the diagonal ribs and the transverse frames and the vertical frames are provided with semi-cylindrical or hemispherical fixing bodies.
9. The grid for pole plates of lead-acid storage batteries according to claim 1, wherein auxiliary tilted ribs parallel to the tilted ribs are arranged between the tilted ribs within the height range of 1/3-1/2 at the lower part of the frame structure.
10. The lead-acid battery plate grid according to claim 1, wherein the frame structure corners are provided with corner vertical ribs and corner diagonal ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023118416.3U CN214043716U (en) | 2020-12-22 | 2020-12-22 | Lead-acid storage battery polar plate grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023118416.3U CN214043716U (en) | 2020-12-22 | 2020-12-22 | Lead-acid storage battery polar plate grid |
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| Publication Number | Publication Date |
|---|---|
| CN214043716U true CN214043716U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023118416.3U Active CN214043716U (en) | 2020-12-22 | 2020-12-22 | Lead-acid storage battery polar plate grid |
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| CN (1) | CN214043716U (en) |
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- 2020-12-22 CN CN202023118416.3U patent/CN214043716U/en active Active
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