CN113328181B - Lead storage battery free of sealant and storage battery pack - Google Patents
Lead storage battery free of sealant and storage battery pack Download PDFInfo
- Publication number
- CN113328181B CN113328181B CN202110461526.XA CN202110461526A CN113328181B CN 113328181 B CN113328181 B CN 113328181B CN 202110461526 A CN202110461526 A CN 202110461526A CN 113328181 B CN113328181 B CN 113328181B
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- top surface
- cover body
- storage battery
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- 238000003860 storage Methods 0.000 title claims abstract description 51
- 239000000565 sealant Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000003466 welding Methods 0.000 claims abstract description 33
- 238000005192 partition Methods 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 2
- 210000005056 cell body Anatomy 0.000 description 14
- 239000003292 glue Substances 0.000 description 14
- 239000003792 electrolyte Substances 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 230000008602 contraction Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
- H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a sealant-free lead storage battery and a storage battery pack, which comprise a tank body and a cover body, wherein the tank body and the cover body are mutually covered, the inner cavity of the tank body is divided into a plurality of single lattices by partition plates, terminals used as positive and negative leading-out poles are arranged on a pole group positioned at the head and the tail, the top surface of the cover body is provided with a terminal groove for accommodating the terminals, the bottom surface of the terminal groove is provided with a terminal hole for the terminals to extend out, each terminal comprises an end pole penetrating through the terminal hole and made of lead and a copper core with the bottom end embedded into the top end of the end pole, and the copper core is provided with a wiring screw hole with an opening on the top surface; a lead sleeve is nested on the side wall of the terminal groove, and the terminal extends into the lead sleeve; the top surface of the side wall of the tank body is flush with the top surface of the partition plate, the bottom surface of the cover body is provided with a circle of sealing convex ring which is sealed with the top surface of the side wall of the tank body through ultrasonic welding, and the bottom surface of the cover body is positioned in the sealing convex ring and is also provided with a sealing convex strip which is sealed with the top surface of the partition plate through ultrasonic welding. The invention has simple installation, improved sealing performance of the lead storage battery, small processing difficulty of the components and no need of using sealant.
Description
Technical Field
The invention relates to the technical field of lead storage batteries, in particular to a sealant-free lead storage battery and a storage battery pack.
Background
The manufacturing process of the lead storage battery is mature day by day, and the performance is safer and more reliable. The lead storage battery has higher cost performance due to the lower price advantage, and has a higher share in the market. However, with the development of society, the society has made higher demands on the structure and various performances of lead storage batteries. Generally, the shell of the lead storage battery is made of ABS plastic, the sealant at the battery terminal is epoxy resin, the coefficients of expansion with heat and contraction with cold are different under different temperature conditions, and the problems of high sealing difficulty and poor sealing effect of the battery terminal can be caused. In addition, the sulfuric acid electrolyte adopted in the lead storage battery has high corrosivity, so that the end pole can be corroded, the sulfuric acid electrolyte can climb up along the end pole, the battery terminal and the sealant can be corroded, and the acid leakage of the lead storage battery can be caused.
Patent document with publication number CN209487547U discloses a storage battery pole terminal sealing structure, which comprises a storage battery middle cover, a lead sleeve, a pole and a storage battery terminal, wherein a glue groove is formed in the storage battery middle cover, a first through hole is formed in the bottom of the glue groove, the lead sleeve is embedded in the first through hole in a sealing manner, and the top of the lead sleeve is higher than the first through hole to form a first layer of seal; a second through hole is formed in the lead sleeve, one end of the pole column penetrates through the second through hole and is higher than the upper surface of the lead sleeve, the storage battery terminal is installed in the rubber groove and is in contact with the upper part of the lead sleeve, and the pole column, the lead sleeve and the storage battery terminal are integrated into a whole through a welding gun to form a second layer of seal; and injecting sealant into other gaps in the glue groove to form a third layer of seal. This scheme has designed the three-layer and has sealed, though can reach better sealed effect, nevertheless can still appear in the battery between lid and the sealed glue because the expend with heat and contract with cold coefficient difference and the weeping problem that appears.
The patent document with the publication number of CN203398190U discloses a battery cell body glue sealing structure, which comprises a battery cell body and a cover body for sealing an opening above the battery cell body, wherein the battery cell body is of a PP plastic structure, the cover body is of an ABS plastic structure, the battery cell body and the cover body are connected by a sealant in a gluing manner, a circle of glue sealing edge is arranged at the opening above the battery cell body, and a circle of glue sealing hole is arranged at the periphery of the glue sealing edge. The patent document adopts PP plastics to make the battery cell body, the battery is difficult to crack, because the glue seal edge is provided with a plurality of square holes or round hole type glue seal holes, because the glue solution in the square holes (or round holes) plays the role of 'hook' after solidification, the fastening degree of the connection of the battery cell body and the cover body is enhanced, and the effects of firmness, sealing and impact resistance are achieved. According to the patent document, the tank body and the cover body of the lead storage battery are connected through the sealant in a gluing mode, and the sealant is easily corroded by electrolyte and easily aged to cause leakage of the lead storage battery.
Disclosure of Invention
In order to solve the problems of liquid leakage caused by different coefficients of thermal expansion and cold contraction between a battery terminal structure and a sealant and the problem that a joint between a groove body and a cover body which are connected by the sealant in a gluing mode is easily corroded by electrolyte in the prior art, the invention provides a sealant-free lead storage battery and a sealant-free storage battery pack, which are simple in structure and convenient to install, and do not need to use the sealant.
A lead accumulator without sealing glue includes a tank body and a cover body which are covered with each other, the inner cavity of the tank body is divided into a plurality of single cells by partition boards, each single cell is provided with a pole group, the pole groups are connected in series by a wall-through welding mode, the pole groups positioned at the head and the tail are provided with terminals used as positive and negative leading-out poles, the top surface of the cover body is provided with a terminal groove for accommodating the terminals, the bottom surface of the terminal groove is provided with terminal holes for the terminals to extend out,
the terminal comprises an end pole penetrating through the terminal hole and made of lead, and a copper core with the bottom end embedded into the top end of the end pole, and the copper core is provided with a wiring screw hole with an opening on the top surface; the side wall of the terminal groove is nested with a lead sleeve, the terminal extends into the lead sleeve, and an end pole and the top of the lead sleeve are welded into a whole in a hot melting mode;
the side wall top surface of the tank body is flush with the top surface of the partition plate, the bottom surface of the cover body is provided with a circle of sealing convex ring sealed with the side wall top surface of the tank body in an ultrasonic welding mode, and the bottom surface of the cover body is located in the sealing convex ring and is further provided with a sealing convex strip sealed with the top surface of the partition plate in an ultrasonic welding mode.
The lead sleeve is combined with the terminal groove in a nesting mode, the nesting enables the combined structure of the lead sleeve and the terminal groove to be more stable, the use of sealant is avoided, and the problem of liquid leakage caused by the fact that the sealant is corroded by electrolyte does not exist in the subsequent use process.
The end pole and the lead sleeve are welded integrally in a circle through hot melting, the end pole is made of the same material as the lead sleeve, cracks cannot occur due to different coefficients of expansion with heat and contraction with cold of the material, leakage of the lead storage battery is avoided, sealing glue is prevented from being used for bonding, and production cost is reduced.
The sealing convex ring is sealed with the ultrasonic welding of the top surface of the side wall of the tank body, the sealing convex strip is sealed with the ultrasonic welding of the top surface of the partition plate, the sealing performance between the cover body and the tank body can be enhanced, the lead storage battery is not easy to leak, sealant is avoided, and the risk of leakage caused by corrosion of electrolyte on the sealant is also avoided.
The outer peripheral face of the lead sleeve is provided with a plurality of circles of convex rings which are arranged at intervals along the axial direction of the lead sleeve, the lead sleeve is embedded into the cover body during injection molding, the convex rings arranged on the periphery of the lead sleeve can increase the interaction with the cover body, the lead sleeve is not easy to fall off from the cover body, and the sealing performance of the lead storage battery is improved.
The bottom surface of the lead sleeve is provided with a circle of convex ring which is abutted against the bottom surface of the terminal groove.
The side wall of the terminal hole and the opening of the bottom surface of the lead sleeve are provided with chamfers which facilitate the terminal to stretch into, and the chamfers play a certain role in guiding the terminal to stretch into the lead sleeve.
The terminal top still is equipped with the protecting cover, the oral area that the protecting cover includes the downward lid portion of opening, lid portion is equipped with the round brim of a hat, the roof of lid portion has the mounting hole that supplies the copper core to pass, the lid top surface has the encirclement the terminal groove sets up, is used for holding the annular stair structure of the brim of a hat, brim of a hat bottom surface has the welding point that fuses with annular stair structure's step face ultrasonic bonding.
The welding point of the bottom surface of the brim of a hat and the annular step structure are fused by ultrasonic welding, the cover body and the protecting cover are fused more firmly by ultrasonic welding, sealant is avoided, and cost is saved.
The top surface of a circle of convex ring positioned at the uppermost part of the lead sleeve is flush with the step surface of the annular step structure, and the inner part of the bottom surface of the brim is abutted with the convex ring.
The top surface of the brim is flush with the top surface of the cover body, and the bottom of the side wall of the cover body is provided with a liquid leakage hole.
A battery pack comprising the lead storage batteries, and a fastening structure for fixing the lead storage batteries, the fastening structure comprising:
the bottom plate is provided with a plurality of positioning grooves for positioning the lead storage battery;
the pressing plate is arranged on the top surface of each lead storage battery in a crossing manner;
and the fastening bolt sequentially penetrates through the pressing plate and the bottom plate and is matched with a fastening nut for fixing the pressing plate and the bottom plate.
The bottom surface of lid is equipped with vertically and horizontally staggered's first strengthening rib, vertically and horizontally staggered between the first strengthening rib, has not only practiced thrift the materials in the lid preparation process, practices thrift manufacturing cost, can play the effect of reinforcing lid mechanical strength again.
The lead storage batteries are arranged in a row along the width direction, the pressing plates are arranged along the arrangement direction of the lead storage batteries, the four corners of the cover body are provided with extending parts extending outwards, and the bottom surfaces of the extending parts are provided with second reinforcing ribs for preventing the four corners of the cover body from warping.
The second reinforcing ribs support the extension part in the plane direction, and the extension part is prevented from being curled due to the fact that local stress is not uniform.
Compared with the prior art, the invention has the following advantages:
the invention has simple and convenient installation, improved sealing performance of the lead storage battery, small difficulty in processing the components, no need of sealant and improved production efficiency.
Drawings
Fig. 1 is a front view of the terminal of the present invention.
Fig. 2 is a schematic partial cross-sectional view of a terminal of the present invention.
Fig. 3 is a schematic cross-sectional view of a lead sleeve of the present invention.
Fig. 4 is a schematic cross-sectional view of the lead sheath and the cover of the present invention.
Fig. 5 is a schematic cross-sectional view of the mating of the terminal, lead sleeve and cover of the present invention.
FIG. 6 is a top view of the protective cover of the present invention.
Figure 7 is a front cross-sectional view of the protective cover of the present invention.
Figure 8 is a perspective view of the protective cover of the present invention.
Fig. 9 is a partial cross-sectional schematic view of the mating of the protective cover, terminal and cover of the present invention.
Fig. 10 is a partial cross-sectional schematic view of the mating of the protective cover, terminal, lead sleeve and cover of the present invention.
Fig. 11 is a schematic top view of the cover of the present invention.
Fig. 12 is a bottom view of the cover of the present invention.
Fig. 13 is a perspective view of the cover of the present invention.
Figure 14 is a perspective view of the trough of the present invention.
Fig. 15 is a perspective view of a lead-acid battery of the invention.
Fig. 16 is a perspective view of the fastening structure of the present invention.
Fig. 17 is a perspective view of the battery pack of the present invention.
In the figure, the cover body 1, the terminal groove 11, the terminal hole 12, the annular step structure 13, the sealing convex ring 14, the sealing convex strip 15, the first reinforcing rib 16, the extending portion 17, the second reinforcing rib 18, the groove body 2, the partition plate 21, the single lattice 22, the terminal 3, the terminal post 31, the copper core 32, the wiring screw hole 33, the lead sleeve 34, the convex ring 341, the chamfer 342, the protective cover 4, the cap part 41, the mounting hole 411, the cap peak 42, the welding point 421, the liquid leakage hole 43, the fastening structure 5, the bottom plate 51, the positioning groove 52, the pressing plate 53, the fastening bolt 54, and the lead storage battery 6.
Detailed Description
The utility model provides a lead accumulator who exempts from sealed glue, as shown in fig. 1-15, including cell body 2 and the lid 1 that closes each other lid, the inner chamber of cell body 2 is separated into a plurality of simple lattices 22 by division board 21, is equipped with a utmost point crowd in every simple lattice 22, establishes ties each other through the wall welding mode between each utmost point crowd, is located to be equipped with on the utmost point crowd of head and the tail to be used for as positive, the terminal 3 of negative extraction utmost point, lid 1 top surface has the terminal groove 11 that holds terminal 3, and terminal groove 11 bottom surface has the terminal hole 12 that supplies terminal 3 to stretch out, and terminal groove 11's lateral wall nestification has a lead sheath 34, and the lateral wall top surface of cell body 2 flushes with division board 21's top surface, and lid 1's bottom surface is equipped with round and 2 lateral wall top surfaces ultrasonic welding sealed protruding ring 14 of cell body, and lid 1's bottom surface is located sealed protruding ring 14 and still is equipped with division board 21 top surface ultrasonic welding sealed sand grip 15.
The lead sleeve 34 is combined with the terminal groove 11 in a nesting mode, the nesting enables the combined structure of the lead sleeve 34 and the terminal groove 11 to be more stable, the use of sealant is avoided, and the problem of liquid leakage caused by corrosion of the sealant by electrolyte does not exist in the subsequent use process; the sealing convex ring 14 is sealed with the top surface of the side wall of the tank body 2 in an ultrasonic welding mode, the sealing convex strip 15 is sealed with the top surface of the partition plate 21 in an ultrasonic welding mode, the sealing performance between the cover body 1 and the tank body 2 can be enhanced, sealant is prevented from being used, and the leakage risk caused by the fact that electrolyte corrodes the sealant is avoided.
The outer peripheral surface of the lead sleeve 34 is provided with a plurality of circles of convex rings 341 arranged at intervals along the axial direction of the lead sleeve 34, the lead sleeve 34 is embedded during injection molding of the cover body 1, the top surface of the circle of convex rings 341 positioned at the uppermost part of the lead sleeve 34 is flush with the step surface of the annular step structure 13, the bottom surface of the lead sleeve 34 is provided with the circle of convex rings 341, the convex rings 341 are abutted against the bottom surface of the terminal groove 11, a chamfer 342 facilitating the terminal 3 to extend into is arranged at the opening of the bottom surface of the lead sleeve 34, and the chamfer 342 plays a certain role in guiding the terminal 3 to extend into the lead sleeve 34.
The bottom surface of the terminal groove 11 is provided with a terminal groove 11 for the terminal 3 to extend out, and the opening of the bottom surface of the side wall of the terminal groove 11 is provided with a chamfer 342 for the terminal 3 to extend into.
The protecting cover 4 is located the top of terminal 3, and the protecting cover 4 includes that the opening of the downward lid part 41 of opening, lid part 41 is equipped with a round brim of a hat 42, and the roof of lid part 41 has the mounting hole 411 that supplies copper core 32 to pass, and the top surface of brim of a hat 42 is flush with the top surface of lid 1, and the bottom surface inside part of brim of a hat 42 and the bulge loop 341 butt of upper most, and the lateral wall bottom of lid part 41 is equipped with weeping hole 43.
The top surface of lid 1 has and encircles terminal groove 11 setting, is used for holding the annular stair structure 13 of brim of a hat 42, and the bottom surface of brim of a hat 42 has the welding point 421 that fuses with the step face ultrasonic bonding of annular stair structure 13, and lid 1 fuses through ultrasonic bonding with protecting cover 4, and the sealed effectual, the difficult weeping of welding department. The bottom surface of the cover body 1 is provided with first reinforcing ribs 16, four corners of the cover body 1 are provided with extending parts 17 extending outwards, the bottom surface of the extending parts 17 is provided with second reinforcing ribs 18, the first reinforcing ribs 16 are arranged on the bottom surface of the cover body 1 in a criss-cross mode, and the first reinforcing ribs 16 are criss-cross arranged among the first reinforcing ribs, so that the material of the cover body 1 in the preparation process is saved, the manufacturing cost is saved, and the effect of enhancing the mechanical strength of the cover body 1 can be achieved; the second ribs 18 are provided on the bottom surface of the extension portion 17 to prevent the four corners of the lid body 1 from warping.
The inner cavity of the tank body 2 is divided into a plurality of single lattices 22 by partition plates 21, and each single lattice 22 is used for placing a polar group.
As shown in fig. 16 to 17, the battery pack includes a plurality of lead-acid batteries 6 and a fastening structure 5 for fixing each lead-acid battery 6, the fastening structure 5 includes a bottom plate 51, a pressing plate 53 and a fastening bolt 54, the bottom plate 51 has a plurality of positioning slots 52 for positioning the lead-acid batteries 6, the lead-acid batteries 6 are arranged in the positioning slots 52 of the fastening structure 5 in a row in the width direction, the pressing plate 53 is arranged along the arrangement direction of the lead-acid batteries 6, the pressing effect of the pressing plate 53 on the lead-acid batteries 6 can be better exerted, and the batteries can be more stably arranged; the fastening bolts 54 sequentially penetrate through the pressure plate 53 and the bottom plate 51, and the fastening bolts 54 penetrate through the bottom plate 51 and are then tightened by matching fastening nuts, so that the pressure plate 53 and the bottom plate 51 are further fixed.
The assembly process of the invention:
punching holes on a partition plate 21 of the tank body 2, stacking plates according to the sequence of a negative plate, a partition plate and a positive plate to form a pole group, putting the pole group into the single lattices 22 of the tank body 2, connecting the pole groups in the adjacent single lattices 22 in series in a wall-penetrating welding mode, penetrating the terminal 3 through the terminal hole 12, attaching the end pole 31 to the top of the lead sleeve 34, welding the end pole 31 and the lead sleeve 34 into a whole in a circle by means of hot melting, welding the end pole 31 and the lead sleeve 34 closely together, wherein the end pole 31 and the lead sleeve 34 are made of lead materials, the coefficients of thermal expansion and cold contraction are the same, the welding of the same materials can realize synchronous expansion and contraction, cracks are not easy to generate, and the sealing performance between the end pole 31 and the lead sleeve 34 is ensured, after the lead sleeve 34 and the terminal 3 hot melt welding, with the sealed bulge loop 14 and the 2 lateral wall top surfaces ultrasonic bonding of cell body of lid 1 bottom surface, with the sealed sand grip 15 and the division board 21 top surface ultrasonic bonding of lid 1 bottom surface, sealed through ultrasonic bonding between lid 1 and the cell body 2, sealed department is difficult to be corroded by electrolyte, with the brim of a hat 42 bottom surface inside part and the bulge loop 341 butt of protecting cover 4, the top surface of brim of a hat 42 flushes with the top surface of lid 1, make protecting cover 4 be located inside the annular stair structure 13 of lid 1, terminal 3 passes mounting hole 411, fuse with the welding point 421 of brim of a hat 42 bottom surface and the step face of annular stair structure 13 with ultrasonic welding machine, accomplish the equipment of lead accumulator 6.
A plurality of lead storage batteries 6 are placed in positioning grooves 52 of a bottom plate 51 and are sequentially arranged in a row, a pressure plate 53 is pressed on the tops of the lead storage batteries 6 along the arrangement direction of the lead storage batteries 6, fastening bolts 54 sequentially penetrate through the pressure plate 53 and the bottom plate 51, and one side, penetrating out of the bottom plate 51, of each fastening bolt 54 is fixed through fastening nuts in a threaded mode, so that the assembly of the storage battery pack is completed.
Claims (3)
1. A storage battery pack is characterized by comprising a plurality of lead storage batteries and a fastening structure for fixing the lead storage batteries, wherein each lead storage battery is a lead storage battery free of sealant, the lead storage battery comprises a groove body and a cover body which are mutually covered, the inner cavity of the groove body is divided into a plurality of single cells by partition plates, a pole group is arranged in each single cell, the pole groups are mutually connected in series in a wall-penetrating welding mode, terminals used as positive and negative leading-out poles are arranged on the pole groups positioned at the head and the tail of the battery, a terminal groove for accommodating the terminals is arranged on the top surface of the cover body, a terminal hole for extending the terminals is arranged on the bottom surface of the terminal groove,
the terminal comprises an end pole penetrating through the terminal hole and made of lead, and a copper core with the bottom end embedded into the top end of the end pole, and the copper core is provided with a wiring screw hole with an opening on the top surface; the side wall of the terminal groove is nested with a lead sleeve, the terminal extends into the lead sleeve, and an end pole and the top of the lead sleeve are welded into a whole in a hot melting mode;
the top surface of the side wall of the tank body is flush with the top surface of the partition plate, the bottom surface of the cover body is provided with a circle of sealing convex ring which is sealed with the top surface of the side wall of the tank body by ultrasonic welding, the bottom surface of the cover body is positioned in the sealing convex ring and is also provided with a sealing convex strip which is sealed with the top surface of the partition plate by ultrasonic welding,
the outer peripheral surface of the lead sleeve is provided with a plurality of circles of convex rings which are arranged at intervals along the axial direction of the lead sleeve, the lead sleeve is embedded when the cover body is injected,
the top of the terminal is also provided with a protecting cover which comprises a cap part with a downward opening, a circle of brim is arranged at the mouth of the cap part, the top wall of the cap part is provided with a mounting hole for the copper core to pass through,
the top surface of the cover body is provided with an annular step structure which is arranged around the terminal groove and used for accommodating the cap peak, the bottom surface of the cap peak is provided with a welding point which is welded and fused with the step surface of the annular step structure in an ultrasonic way,
the top surface of a circle of convex ring positioned at the uppermost part of the lead sleeve is flush with the step surface of the annular step structure, the inner side part of the bottom surface of the brim is abutted with the convex ring,
the top surface of the brim is flush with the top surface of the cover body, and the bottom of the side wall of the cover body is provided with a liquid leakage hole;
the fastening structure includes:
the bottom plate is provided with a plurality of positioning grooves for positioning the lead storage battery;
the pressing plate is arranged on the top surface of each lead storage battery in a crossing manner;
the fastening bolt sequentially penetrates through the pressure plate and the bottom plate and is matched with a fastening nut for fixing the pressure plate and the bottom plate,
the bottom surface of the cover body is provided with criss-cross first reinforcing ribs,
the lead storage batteries are arranged in a row along the width direction, the pressing plates are arranged along the arrangement direction of the lead storage batteries, the four corners of the cover body are provided with extending parts extending outwards, and the bottom surfaces of the extending parts are provided with second reinforcing ribs for preventing the four corners of the cover body from warping.
2. The battery pack according to claim 1, wherein the bottom surface of the lead cover is provided with a ring of the convex ring, and the ring of the convex ring abuts against the bottom surface of the terminal groove.
3. The battery pack of claim 2, wherein the opening in the side walls of the terminal hole and the bottom of the lead casing is chamfered to facilitate insertion of the terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110461526.XA CN113328181B (en) | 2021-04-27 | 2021-04-27 | Lead storage battery free of sealant and storage battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110461526.XA CN113328181B (en) | 2021-04-27 | 2021-04-27 | Lead storage battery free of sealant and storage battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113328181A CN113328181A (en) | 2021-08-31 |
| CN113328181B true CN113328181B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110461526.XA Active CN113328181B (en) | 2021-04-27 | 2021-04-27 | Lead storage battery free of sealant and storage battery pack |
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| CN (1) | CN113328181B (en) |
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| CN113972407A (en) * | 2021-09-29 | 2022-01-25 | 江苏同科蓄电池股份有限公司 | Ultra-thin lead-acid storage battery plate cluster module |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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