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CN111554986A - Method for manufacturing lead-acid storage battery - Google Patents

Method for manufacturing lead-acid storage battery Download PDF

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Publication number
CN111554986A
CN111554986A CN202010211935.XA CN202010211935A CN111554986A CN 111554986 A CN111554986 A CN 111554986A CN 202010211935 A CN202010211935 A CN 202010211935A CN 111554986 A CN111554986 A CN 111554986A
Authority
CN
China
Prior art keywords
terminal
battery
battery cover
pole
electrical connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010211935.XA
Other languages
Chinese (zh)
Inventor
丁元军
马洪涛
刘孝伟
吴永新
王新成
杨勇
阙奕鹏
陆超
闫大龙
赵青
王新虎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chaowei Power Group Co Ltd
Original Assignee
Chaowei Power Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chaowei Power Group Co Ltd filed Critical Chaowei Power Group Co Ltd
Priority to CN202010211935.XA priority Critical patent/CN111554986A/en
Publication of CN111554986A publication Critical patent/CN111554986A/en
Pending legal-status Critical Current

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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
    • H01M10/12—Construction or manufacture
    • H01M10/14—Assembling a group of electrodes or separators
    • 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
    • H01M10/12—Construction or manufacture
    • H01M10/16—Suspending or supporting electrodes or groups of electrodes in the case
    • 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
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • 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
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
    • H01M50/541—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges for 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • 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
    • H01M50/571—Methods or arrangements for affording protection against corrosion; Selection of materials therefor
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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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)

Abstract

The invention relates to a method for manufacturing a lead-acid storage battery, which is characterized by comprising the following steps of firstly, putting a pole group comprising a first pole and a second pole into a battery jar; step two, sealing the battery cover on the battery jar, electrically connecting the first terminal and the first pole column, and electrically connecting the second terminal and the second pole column; step three, formation; the second step is preceded by the step of pre-disposing a first terminal and a second terminal on the battery cover. The manufacturing method of the invention reduces the risk of the sealant corroding the terminal, improves the production efficiency and reduces the manufacturing cost.

Description

Method for manufacturing lead-acid storage battery
Technical Field
The invention relates to a lead-acid storage battery, in particular to a manufacturing method thereof.
Background
The existing lead-acid storage battery manufacturing method generally needs to pass through the processes of wrapping sheets, pole group groove entering (post cast welding or pole group cast welding groove entering), sealing cover, mounting terminals in a terminal groove on a battery cover, welding with a pole group, sealing terminal glue and the like, when the terminals are mounted on the battery cover for welding, the operation work efficiency of fixing the terminals needs to be increased, the glue is easy to overflow when the terminals are sealed by the sealing glue to cause appearance defects, the risk that the terminals are easily corroded by electrolyte when being formed exists, in addition, particularly, a horizontal battery, the terminals on the side surfaces of the battery are led to the upper surface of the battery in a use state, the wire laying operation of the battery is increased, the connection is inconvenient when being formed, and the short circuit risk of a finished battery is increased.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for manufacturing a lead-acid storage battery, which comprises the following steps of firstly, putting a pole group comprising a first pole and a second pole into a battery jar; step two, sealing the battery cover on the battery jar, electrically connecting the first terminal and the first pole column, and electrically connecting the second terminal and the second pole column; step three, formation; the second step is preceded by the step of pre-disposing a first terminal and a second terminal on the battery cover.
Further, a step of sealing the terminal with glue is further included after the step two and before the step three.
Further, before the terminal and the pole are welded in the second step, a step of removing a pole cap on the battery cover is also included.
Further, the first terminal and the second terminal which are preset in the battery cover and the battery cover are formed by injection molding or welding.
Further, first terminal includes outer wiring end and first electric connection piece, first terminal pass through first electric connection piece with first utmost point post welding, second terminal includes outer wiring end and second electric connection piece, the second terminal pass through second electric connection piece with second utmost point post welding, the outer wiring end of first terminal with first electric connection piece passes through battery cover seal isolation, the outer wiring end of second terminal with second electric connection piece passes through battery cover seal isolation.
Further, the periphery of at least one of the outer terminal of the first terminal or the first electric connecting sheet of the first terminal is completely injection-molded or weld-sealed with the battery cover, and the periphery of at least one of the outer terminal of the second terminal or the second electric connecting sheet of the second terminal is completely injection-molded or weld-sealed with the battery cover.
Furthermore, the second terminal also comprises a lead, one end of the lead is connected with the second electric connecting sheet, and the other end of the lead is electrically connected with the external connecting terminal.
Further, the second terminal also comprises a buried pipe, and the lead is arranged in the buried pipe.
Further, the first terminal includes an outer terminal and a first electrical connection sheet, the second terminal includes an outer terminal and a second electrical connection sheet, the battery cover includes an upper side, and when the lead-acid storage battery is placed horizontally, the outer terminal of the first terminal and the outer terminal of the second terminal are exposed from the upper side of the battery cover.
Further, the external terminal of the first terminal and the external terminal of the second terminal protrude from the lowest surface of the upper side surface of the battery cover to be lower than the highest surface of the upper side surface of the battery cover.
The manufacturing method of the invention reduces the risk of the sealant corroding the terminal, improves the production efficiency and reduces the manufacturing cost.
Drawings
FIG. 1 is an exploded view of a battery pack in a state of use in example 1 of the present invention;
fig. 2 is a battery container according to embodiment 1 of the present invention;
FIG. 3 is a polar group according to embodiment 1 of the present invention;
fig. 4 is an isometric view of a cell cover of example 1 of the present invention;
fig. 5 is a front view of a cell cover of embodiment 1 of the invention;
fig. 6 is a rear view of a battery cover of embodiment 1 of the invention;
FIG. 7 is a cross-sectional view taken along A-A of FIG. 5 in accordance with the present invention;
fig. 8 is a right side view of the battery cover of embodiment 1 of the invention, including a partial sectional view of the terminal in cooperation with the post;
fig. 9 is an isometric view of a first terminal according to embodiment 1 of the invention;
FIG. 10 is a schematic view of a second terminal in embodiment 1 of the invention;
FIG. 11 is a schematic diagram of a predetermined circuit of a second terminal in embodiment 1 of the present invention;
fig. 12 is a schematic diagram of a battery according to a second embodiment of the invention in which horizontal battery pole groups are arranged in a 2X3 pattern;
fig. 13 is a schematic view of a third embodiment of a conventional battery of the present invention having the electrode groups arranged in a 2X3 pattern;
fig. 14 shows another connection of the terminal and the post of the present invention.
Detailed Description
The invention is further illustrated by the following specific embodiments in conjunction with the accompanying drawings.
The first embodiment of the present invention is illustrated in detail by taking 1 × 6 as an example, as shown in fig. 1-6, the direction of the present invention is based on that shown in fig. 1, the lead-acid storage battery in fig. 1 is horizontally placed, and the upper and lower sides of the lead-acid storage battery are the upper and lower sides of the battery cover 3. The battery comprises a battery jar 1, a pole group 2, a battery cover 3, a rubber cap 4, a small cover plate 5, a large cover plate 6 and the like, wherein the battery jar 1 is horizontally placed for use, the pole plate is horizontally placed for use, and the first terminal 302 and the second terminal 303 are preset on the battery cover 3; an electrical connection is made to the outside through the first terminal 302 and the second terminal 303. The battery jar 1 is of a cube structure, six monomer grids 11 are sequentially arranged along the vertical direction, the thickness direction of the monomer grids 11 is horizontally arranged up and down and corresponds to the polar plates in the unipolar group 21 which is horizontally arranged in a use state, and the arrangement state can effectively inhibit the layering phenomenon of sulfuric acid electrolyte, thereby reducing the failure risk of the polar plates due to sulfation; along the side edges of the 6 single cells 11, a whole circle of convex sealing glue edge 12 is arranged and is used for matching with a sealing glue groove 314 of the battery cover 3 and sealing with sealing glue; the outer sides of the upper end face and the lower end face of the battery jar 1 are respectively provided with a plurality of reinforcing ribs 13, so that the upper end face and the lower end face of the battery jar 1 are prevented from deforming to influence the service life of the battery due to expansion in the charging and discharging processes of a polar plate; the reinforcing ribs 13 on the outer sides of the upper end face and the lower end face of the battery jar 1 are designed in a unidirectional demoulding structure, so that the manufacturing cost of the battery jar 1 is reduced, and the production efficiency is improved;
as shown in fig. 3, the pole group 2 is composed of six unipolar groups 21 and a series of bus bars 24; the monopole group 21 is formed by arranging a positive plate, an AGM separator, a negative plate and a side negative plate according to the process requirements; the polar plate is horizontally arranged and corresponds to the single grids 11 of the battery jar 1, and the polarity of the polar plate is alternately arranged in a positive way and a negative way according to the process requirement; the electrode lugs are electrically connected with a series of corresponding bus bars 24 through cast welding according to the process requirements, the first unipolar group, namely when the battery is horizontally placed, the bus bar on the uppermost unipolar group 21 is provided with a first pole 22, and the sixth unipolar group, namely when the battery is horizontally placed, the bus bar on the lowermost unipolar group 21 is provided with a second pole 23; when the battery is horizontally placed, that is, the pole group 2 is in a horizontal use state, the first pole column 22 is close to the upper surface 3a of the battery cover 3, and the second pole column 23 is far away from the upper surface 3a of the battery cover 3; for the convenience and safety of the customer, the second terminal 23 needs to be led to the upper surface 3a of the battery cover 3, which is beneficial for the user to connect with the battery for electricity.
As shown in fig. 4-6, the battery cover 3 is a rectangular parallelepiped structure, six cell compartments 301 are arranged along the up-down direction according to the use state, the cell compartments 301 of the battery cover 3 correspond to the cell compartments 11 of the battery container, a rubber cap base 304 is respectively arranged at the middle position of each cell compartment 301, and the rubber cap base 304 is matched with the rubber cap 4 to control the on-off valve pressure of the battery in the use state; a liquid injection hole 313 is respectively arranged in the middle of each rubber cap base 304, and the liquid injection hole 313 is a through hole penetrating through the battery cover 3 and is used for chemically injecting/extracting acid liquor and is also a passage for discharging pressure gas in the battery; between every two rubber cap bases 304, an exhaust channel 310 is arranged, which is used for smoothly exhausting the gas exhausted from the liquid injection hole 313 to the outside of the battery; two bus bar back grooves 306 are symmetrically arranged on two sides along the central line of the exhaust groove 310, and the positions and the sizes of the two bus bar back grooves correspond to those of the bus bars 24 on the polar group 2; on the same side of the rubber cap base 304 of the first unit cell and the sixth unit cell, the battery cover 3 is respectively provided with a pole cap 309a, 309b, and the pole cap 309a, 309b is preferably in a regular hexagonal prism shape; on both sides of the first single-body rubber cap holder 304, the battery cover 3 is respectively provided with a first terminal 302 and a second terminal 303, as shown in fig. 7-11, the first terminal 302 comprises an external terminal 302a and a first electric connecting sheet 323, the first terminal 302 is preset on the battery cover 3, the position of the first electric connecting sheet 323 corresponds to the pole cap 309a, the second terminal 303 comprises an external terminal 303a, a conducting wire 311 and a second electric connecting sheet 331, the second terminal 303 is preset on the battery cover 3, the position of the second electric connecting sheet 331 corresponds to the pole cap 309b, when the battery is horizontally placed, that is, when the pole plate surface is horizontally placed, the external terminal 302a of the first terminal 302 and the external terminal 303a of the second terminal 303 are exposed from the upper side 3a of the battery cover 3, where the exposure means that when the battery is horizontally placed, a user can make external electric connection from above the battery; the upper side 3a of the battery cover includes a lowest surface and an uppermost surface, and the external connection terminal 302a of the first terminal 302 and the external connection terminal 303a of the second terminal 303 preferably protrude from the lowest surface of the upper side of the battery cover to be lower than the uppermost surface of the upper side of the battery cover. The surface of the battery cover 3 is also provided with 8 fixing holes 307 for fixing the large cover plate 6; the edges of the left, the lower and the right surfaces of the surface of the battery cover 3 are also provided with raised skirts 308 which are matched with the large cover plate to play a role in decoration and protection; two bus-bar grooves 315 are arranged on the back surface of the battery cover 3, the positions of the bus-bar grooves 315 correspond to the bus-bar back grooves 306 and the bus-bars 24 of the pole group 2, and the sizes of the bus-bar grooves 315 are slightly larger than the sizes of the bus-bars 24 of the pole group 2, so that the bus-bars 24 can be conveniently packaged in the bus-bar grooves 315 by using sealant to play a role in sealing; the back of the battery cover 3 is provided with a pole post hole 312a and a pole post hole 312b respectively corresponding to the two pole post caps 309a and 309b, and the pole post holes are used for inserting pole posts when the battery is covered; when a terminal welding process is performed in the production process, the terminal caps 309a and 309b above the first terminal 22 and the second terminal 23 need to be removed by using a special wrench, so that the copper surfaces of the first electric connecting sheet 323 and the second electric connecting sheet 331 are exposed and are respectively welded with the first terminal 22 and the first terminal 23 of the pole group 2; a corresponding sealing glue groove 314 is arranged at the position corresponding to the sealing glue edge 12 on the groove 1 on the back surface of the battery cover 3, and the sealing glue edge 12 is inserted into the sealing glue groove 314 during assembly and sealed by sealing glue;
the first terminal 302 comprises an external terminal 302a and a first electric connecting sheet 323, the external terminal comprises a first square platform 317 with a thin square external terminal surface, a first round platform 318 is arranged at the center of the lower surface of the first square platform 317, a second square platform 319 with a thin square lower surface is arranged at the lower surface of the first round platform 318, a second round platform 320 is arranged at the center of the lower surface of the second square platform 319, and a screw hole 321 is downwards arranged at the center of the upper surface of the first square platform 317 for fastening when being connected with an external connecting line; a square sheet-shaped first square piece 322 is arranged at a proper position of the lower surface of the second round table 320 and is perpendicular to the lower surface, a circular ring-shaped ring piece with the same thickness is arranged at the lower end of the first square piece 322, the first electric connection piece 323 can comprise the ring piece and the first square piece 322, and the diameter of the inner ring of the ring piece of the first electric connection piece 323 corresponds to the diameter of the first pole column 22 on the pole group 2; the minimum diameter of each round platform and each square platform is larger than the diameter of the screw hole 321, and the sum of the thicknesses of each round platform and each square platform is larger than the depth of the screw hole 321; the whole first terminal 302 can be completely preset in the battery cover 3, the first terminal 302 only needs to be exposed out of the battery cover 3, namely, the first terminal can be electrically connected to the outside, and preferably, the upper surface of the first block 317 extends out of the lowest surface of the battery cover 3 and is lower than the highest position of the battery cover 3, namely, the uppermost surface, so that the external electrical connection is facilitated on one hand, and the danger of short circuit and fire caused when the upper end surfaces of the batteries are mistakenly and relatively placed together can be prevented on the other hand; the second terminal 303 comprises an external terminal 303a and a second electric connecting sheet 331, the external terminal surface of which is made of copper material and comprises a thin square third square platform 324, a third round platform 325 is arranged at the center of the lower surface of the third square platform 324, a thin square fourth square platform 326 is arranged at the lower surface of the third round platform 325, a fourth round platform 327 is arranged at the center of the lower surface of the fourth square platform 326, a notch 328 is arranged at a proper position of the lower surface of the fourth round platform 327 and is vertical to the lower surface, and the notch is used for placing and welding one end of the lead 311 to realize the electric connection between the lead 311 and the external terminal; the other end of the conductive wire 311 is electrically connected to the second electrical connection pad 331; a screw hole 329 is arranged downwards in the center of the upper surface of the third square table 324 and is used for fastening when an external connecting wire is connected; the minimum diameter of each round platform and each square platform is larger than the diameter of the screw hole 329, and the sum of the thicknesses of each round platform and each square platform is larger than the depth of the screw hole 329; the whole second terminal 303 can be embedded in the battery cover 3, the second terminal 303 only needs to be exposed out of the battery cover 3, namely, the second terminal 303 can be electrically connected to the outside, and in addition, the external connection end 303a of the second terminal 303 preferably extends out of the lowest surface of the battery cover 3 and is lower than the highest position of the battery cover 3, namely, the uppermost surface, so that the external electrical connection is convenient, and the danger of short circuit and fire caused when the upper end surfaces of the batteries are put together in a wrong relative mode can be prevented; the specification of the screw hole 321 is consistent with that of the screw hole 329, so that the universality of use is ensured; the second electrical connection sheet 331 is preferably made of copper, and is composed of a rectangular sheet-shaped square sheet 330 and a circular ring 332 with the same thickness arranged at the lower end of the square sheet 330, and the diameter of the inner ring of the circular ring 332 corresponds to the diameter of the second pole column 23 on the pole group 2; the square piece 330 is electrically connected with the remaining end of the lead 311 by welding; the second electric connecting sheet 331 and the conducting wire 311 are all preset in the battery cover 3, the conducting wire 311 can be laid from any one preset line 333 and preset in the embedded pipe 305, and the conducting wire, the embedded pipe 305 and the terminal are simultaneously and preliminarily injected into the battery cover; the installation step in the later production process is saved, the production efficiency is improved, the acid liquor corrosion is prevented, and the safety is improved.
In this embodiment, the presetting of the first terminal 302 and the second terminal 303 is performed in the production process of the battery cover 3, the second terminal 303 including the lead 311 and the second electrical connection sheet 331 is electrically connected together as required in advance, then the assembly composed of the first terminal 302 and the second terminal 303 is respectively installed at the corresponding position of the injection mold when the battery cover 3 is produced, the mold closing and injection molding production is continued, the injection molding integration molding of the first terminal 302, the second terminal 303 and the battery cover 3 is realized, and the presetting operation is completed. The term "integrally formed" herein means that the battery cover is mounted on the battery can, and the first terminal and the second terminal are also mounted on the battery can along with the battery cover, and the integrally formed term is also understood to mean that the first terminal 302 and the second terminal 303 are pre-mounted on the battery cover 3. After the first terminal 302 of the present invention and the battery cover 3 are integrally formed by injection molding, preferably, the external connection end 302a of the first terminal 302 and the first electrical connection tab 323 of the first terminal are sealed and isolated by the battery cover 3, where the sealed and isolated means that the sealant cannot climb up through the electrical connection tab and overflow from the terminal, that is, the sealant cannot climb up through the first electrical connection tab 323 and overflow from the external connection end 302a of the first terminal 302, at this time, the external surface of at least one of the external connection end 302a of the first terminal 302 or the first electrical connection tab 323 of the first terminal and the battery cover 3 are sealed and isolated by injection molding, for example, the external surface of the first round table 318 and the battery cover 3 are sealed by injection molding or the external surface of the first square plate 322 and the battery cover 3 are sealed by injection molding, and the principle of the second terminal 303 is the same.
The integral molding of the first terminal 302 and the second terminal 303 with the battery cover of the invention can be realized by other suitable methods besides injection molding, such as welding, and the like, and the integral molding here means that the first terminal and the second terminal can be mounted on the battery cover along with the battery cover while the battery cover is mounted on the battery cover, and the integral molding here can also be understood as the realization that the first terminal 302 and the second terminal 303 are preset on the battery cover 3. The first terminal 302 and the second terminal 303 are welded to the battery cover 3 by integral molding in a welding manner, preferably, the external connection end of the terminal and the electrical connection sheet of the terminal are sealed and isolated by the battery cover 3, where the sealing isolation means that the sealant cannot climb through the electrical connection sheet and overflow from the terminal, that is, the sealant cannot climb through the first electrical connection sheet 323 and overflow from the external connection end 302a of the first terminal 302, and at this time, the periphery of at least one of the external connection end 302a of the first terminal 302 or the first electrical connection sheet 323 of the first terminal is completely sealed and isolated from the battery cover 3 by welding, for example, the outer surface of the first round table 318 is welded and sealed with the battery cover 3 or the outer surface of the first square sheet 322 is welded and sealed with the battery cover 3, and the principle of the second terminal 303 is the same. During production, the second terminals 303 including the wires 311 and the second electrical connection sheets 331 are welded together as required, and then the assembly of the first terminals 302 and the second terminals 303 is welded on the battery cover 3 when the battery cover 3 is produced, so that the first terminals 302, the second terminals 303 and the battery cover 3 are integrally formed, and the preset operation is completed.
The structure that the square platforms and the circular platforms of the first terminal 302 and the second terminal 303 are alternately connected is beneficial to increasing the torsion resistance in presetting, and preventing the terminal from loosening or falling off when being fastened;
the number of the rubber caps 4 is six, the rubber caps are consistent with the number of the rubber cap seats 304, and the rubber caps are matched with the rubber cap seats 304 on the battery cover 3 in a use state to play a role in controlling the pressure of an opening and closing valve;
the small cover plate 5 is assembled with the battery cover 3 through glue sealing or ultrasonic welding in a use state, and presses the rubber cap 4 (limits the position of the rubber cap when the valve is opened) so as to achieve the effect of accurately controlling the pressure of the valve opening, ensure the water loss consistency of the battery pack and prolong the whole service life of the battery pack;
the large cover plate 6 is matched with the battery cover 3 in a glue sealing, ultrasonic welding or buckling connection mode in a use state and is embedded in the battery cover 3 to play roles in decoration, brand propaganda and terminal protection;
the method of manufacturing the lead-acid storage battery of example 1 is as follows: step one, putting a pole group comprising a first pole column 22 and a second pole column 23 into a battery jar; step two, the battery cover is sealed on the battery jar, and the first terminal 302 and the first pole column 22 are electrically connected; electrically connecting the second terminal 303 and the second pole 23, and sealing the terminals; step three, formation; the second step further includes a step of presetting the first terminal 302 and the second terminal 303 in the battery cover 3. Firstly, the pole group comprising the first pole 22 and the second pole 23 is cast-welded and then placed into the battery jar 1; the pole group can be firstly put into the groove to a proper position, then cast welding is carried out to form the bus bar, and finally the pole group is pressed to the groove bottom. As shown in fig. 14, in the second step, the terminal and the post are electrically connected, for example, the welding method may be performed by presetting a post cap, and then removing the post cap for welding, or may not be preset with a post cap, at this time, the bus groove 315 corresponding to the bus bar where the first terminal is located may be removed, only the groove for installing the O-ring 316 is needed to be set, and the step for installing the O-ring 316 is added on the post, and finally, the post sealing is completed by using the terminal glue, so that the process of removing the post cap may be omitted, but the process of installing the O-ring is also added at the same time, and the welding method of the terminal and the post in this way, that is, the welding method of the terminal and the post of the general battery in embodiment 3 of the present invention, and the second electrically connecting plate 332 and the second post 23 perform the same process; in the manufacturing method of this embodiment 1, the first terminal 302 and the second terminal 303 are pre-installed in the battery cover 3 to be integrally formed, which may be injection-molded or welded, and preferably, the periphery of at least one of the external connection terminal 302a of the first terminal 302 or the first electrical connection tab 323 of the first terminal is sealed and isolated from the battery cover 3 by injection-molding or welding, for example, the outer surface of the first circular truncated cone 318 is injection-molded or welded with the battery cover 3 or the outer surface of the first square 322 is injection-molded or welded with the battery cover 3, and the principle of the second terminal 303 is the same. The manufacturing process of the invention ensures that the battery can be manufactured by using the existing equipment to the maximum extent without increasing excessive time cost and labor cost. The electrical connection sheet of the present invention may be in the form of a ring sheet, or may be in other suitable forms such as a wire form as required.
Fig. 12 is a schematic diagram of a battery of embodiment 2 of the present invention, in which horizontal battery pole groups are arranged in a 2 × 3 format, in which 1M, 3M, 21M, 24M, 22M, 23M, 302M, 303M are identical to the correspondingly identified members of embodiment 1, and in the horizontal use state of the pole group, the first pole 22M and the second pole 23M are both close to the upper surface of the battery cover 3M; compared with the first embodiment, since the second pole 23M is close to the upper surface of the battery cover 3M, the second terminal 303M does not need to be electrically connected to the second pole 23M by a long distance using a wire, and the electrical connection between the second terminal 303M and the second pole 23M is similar to the electrical connection between the first terminal 302M and the first pole 22M; step two, the battery cover 3M is sealed on the battery jar 1M to electrically connect the first terminal 302M and the first pole 22M; electrically connecting the second terminal 303M with the second pole 23M, and sealing the terminal; step three, formation; the second step further includes a step of presetting the first terminal 302M and the second terminal 303M in the battery cover 3M. Firstly, the pole group comprising the first pole 22M and the second pole 23M is cast and welded, and then the pole group is placed into a battery jar; the pole group can be firstly put into the groove to a proper position, then cast welding is carried out to form the bus bar, and finally the pole group is pressed to the groove bottom. As shown in fig. 14, in the second step, the terminal and the post are electrically connected, for example, the welding method may be performed by presetting a post cap, and then removing the post cap for welding, or not presetting a post cap, and at this time, the bus groove 315 corresponding to the bus where the first terminal is located may also be removed, only the groove for installing the O-ring 316 is needed to be set, and the step for installing the O-ring 316 is added on the post, and finally, the post sealing is completed by using the terminal glue, so that the process of removing the post cap may be omitted, but the process of installing the O-ring is also added at the same time, and the welding method of the terminal and the post, that is, the welding method of the terminal and the post of the general battery in embodiment 3 of the present invention, and the second electrically connecting plate 332 and the second post perform the same process; in the manufacturing method of this embodiment 1, the first terminal 302M and the second terminal 303M are pre-installed in the battery cover 3 to be integrally molded, which may be injection molding or welding, and the like, and preferably, the periphery of at least one of the external terminal of the first terminal 302M or the first electrical connection piece of the first terminal 302M is completely sealed and isolated from the battery cover 3 by injection molding or welding, and the principle of the second terminal 303M is the same.
Fig. 13 is a schematic diagram of a battery in which a common battery pole group is arranged in a 2 × 3 format according to embodiment 3 of the present invention, that is, the pole group is not in a horizontal state but in a vertical state when the battery is used, and the bus bars are connected directly across the bridge. In the figures, 1N, 3N, 21N, 24N, 22N, 23N, 302N, 303N correspond to the correspondingly labeled components in embodiment 1, and the method in embodiment 1 of the present invention can also be applied to a general battery, that is, the first terminal and the second terminal are pre-arranged in the battery cover 3N. The manufacturing method comprises the following steps of firstly, putting a pole group comprising a first pole column 22N and a second pole column 23N into a battery jar; step two, the battery cover 3N is sealed on the battery jar 1N to electrically connect the first terminal 302N and the first pole 22N; electrically connecting the second terminal 303N and the second pole 23N, and sealing the terminals; step three, formation; the second step further includes a step of presetting the first terminal 302N and the second terminal 303N in the battery cover 3N. Step one, a pole group comprising a first pole column 22N and a second pole column 23N is placed in a battery jar 1N; step two, the battery cover N is sealed on the battery jar 1N, and the first terminal 302N and the first pole post 22N are electrically connected; electrically connecting the second terminal 303N and the second pole 23N, and sealing the terminals; step three, formation; the second step further includes a step of presetting the first terminal 302N and the second terminal 303N in the battery cover 3N. Firstly, a pole group comprising a first pole column 22N and a second pole column 23N is cast-welded and then placed into a battery jar; the pole group can be firstly put into the groove to a proper position, then cast welding is carried out to form the bus bar, and finally the pole group is pressed to the groove bottom. As shown in fig. 14, in the second step, the terminal and the post are electrically connected, for example, in a welding manner, a post cap may be preset, and then, in addition to the manner of welding the post cap, the post cap may not be preset, and at this time, the bus groove 315 corresponding to the bus where the first terminal is located may also be removed, only the groove for installing the O-ring 316 is needed to be set, and the step for installing the O-ring 316 is needed to be added on the post, and finally, the post sealing is completed by using the terminal glue, so that the process of removing the post cap may be omitted, but the process of installing the O-ring is also added at the same time, and the welding manner of the terminal and the post in this manner, that is, the welding manner of the terminal and the post of the general battery in embodiment 3 of the present invention, and the second electrical connection tab 332 and the second post. In the manufacturing method of this embodiment 1, the first terminal 302N and the second terminal 303N are pre-installed in the battery cover 3 to be integrally molded, which may be injection molding or welding, and the like, and preferably, the periphery of at least one of the external terminal of the first terminal 302N or the first electrical connection piece of the first terminal 302N is completely sealed and isolated from the battery cover 3 by injection molding or welding, and the principle of the second terminal 303M is the same.
The manufacturing method of the lead-acid storage battery improves the production efficiency, prevents glue from corroding the terminal, improves the safety, reduces the manufacturing cost, avoids the risk of sulfuric acid corrosion, does not influence the appearance of the battery and occupies the space outside the battery, and is convenient, safe, efficient and attractive.

Claims (10)

1. The manufacturing method of the lead-acid storage battery is characterized by comprising the following steps of firstly, putting a pole group comprising a first pole and a second pole into a battery jar; step two, sealing the battery cover on the battery jar, electrically connecting the first terminal and the first pole column, and electrically connecting the second terminal and the second pole column; step three, formation; the second step is preceded by the step of pre-disposing a first terminal and a second terminal on the battery cover.
2. The method of claim 1, further comprising the step of sealing the terminals after step two and before step three.
3. The method of claim 1, wherein the step of removing the cap of the terminal post from the battery cover is further included before the terminal and the terminal post are welded in the step two.
4. A method for manufacturing a lead-acid battery according to any of claims 1 to 3, characterized in that said first and second terminals provided in the cover are injection-molded or welded with said cover.
5. The method of claim 4, wherein the first terminal comprises an external terminal and a first electrical connection tab, the first terminal is welded to the first terminal post via the first electrical connection tab, the second terminal comprises an external terminal and a second electrical connection tab, the second terminal is welded to the second terminal post via the second electrical connection tab, the external terminal of the first terminal is sealed from the first electrical connection tab by the battery cover, and the external terminal of the second terminal is sealed from the second electrical connection tab by the battery cover.
6. The method of claim 5, wherein the periphery of at least one of the outer terminal of the first terminal or the first electrical connection tab of the first terminal is completely injection-molded or weld-sealed to the battery cover, and the periphery of at least one of the outer terminal of the second terminal or the second electrical connection tab of the second terminal is completely injection-molded or weld-sealed to the battery cover.
7. The method for manufacturing a lead-acid storage battery according to claim 4, wherein the second terminal further comprises a lead wire, one end of the lead wire is connected with the second electric connecting sheet, and the other end of the lead wire is electrically connected with the external connection terminal.
8. The method of claim 7, wherein the second terminal further comprises a pre-buried tube, the lead wire being disposed in the pre-buried tube.
9. The method of claim 4, wherein the first terminal includes an outer terminal and a first electrical connection tab, the second terminal includes an outer terminal and a second electrical connection tab, the battery cover includes an upper side, and the outer terminal of the first terminal and the outer terminal of the second terminal are exposed from the upper side of the battery cover when the lead-acid battery is horizontally placed.
10. The method of manufacturing a lead-acid storage battery according to claim 9, wherein the external connection terminal of the first terminal and the external connection terminal of the second terminal protrude from the lowest surface of the upper side surface of the battery cover to be lower than the highest surface of the upper side surface of the battery cover.
CN202010211935.XA 2020-03-24 2020-03-24 Method for manufacturing lead-acid storage battery Pending CN111554986A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201655860U (en) * 2010-04-09 2010-11-24 河南超威电源有限公司 Electromobile storage battery upper cover with connecting terminal
CN101924251A (en) * 2010-09-08 2010-12-22 江苏理士电池有限公司 Method for fabricating maintenance-free motorcycle battery with novel terminal structure
CN106531953A (en) * 2016-12-09 2017-03-22 天能电池集团有限公司 Lead-acid storage battery and battery pack
CN206685431U (en) * 2016-12-29 2017-11-28 安徽力普拉斯电源技术有限公司 The battery cover and lead-acid accumulator of a kind of lead-acid accumulator
CN208014754U (en) * 2018-03-06 2018-10-26 泉州华拓塑胶五金制品有限公司 UPS battery cover board
CN109244562A (en) * 2018-10-11 2019-01-18 天能电池集团有限公司 A kind of lead-acid accumulator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201655860U (en) * 2010-04-09 2010-11-24 河南超威电源有限公司 Electromobile storage battery upper cover with connecting terminal
CN101924251A (en) * 2010-09-08 2010-12-22 江苏理士电池有限公司 Method for fabricating maintenance-free motorcycle battery with novel terminal structure
CN106531953A (en) * 2016-12-09 2017-03-22 天能电池集团有限公司 Lead-acid storage battery and battery pack
CN206685431U (en) * 2016-12-29 2017-11-28 安徽力普拉斯电源技术有限公司 The battery cover and lead-acid accumulator of a kind of lead-acid accumulator
CN208014754U (en) * 2018-03-06 2018-10-26 泉州华拓塑胶五金制品有限公司 UPS battery cover board
CN109244562A (en) * 2018-10-11 2019-01-18 天能电池集团有限公司 A kind of lead-acid accumulator

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Application publication date: 20200818