CN104064718B - A kind of lead-acid accumulator and apply the electric motor car of this accumulator - Google Patents

A kind of lead-acid accumulator and apply the electric motor car of this accumulator Download PDF

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Publication number
CN104064718B
CN104064718B CN201410184534.4A CN201410184534A CN104064718B CN 104064718 B CN104064718 B CN 104064718B CN 201410184534 A CN201410184534 A CN 201410184534A CN 104064718 B CN104064718 B CN 104064718B
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negative
terminal
positive
bus
bar
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CN104064718A (en
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赵文超
叶剑
章春红
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Chaowei Power Group Co Ltd
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Chaowei Power Supply Co Ltd
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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
    • H01M50/50—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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • 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
    • 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 of a single cell or a single battery
    • 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
    • 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
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

The invention discloses a kind of lead-acid accumulator and apply the electric motor car of this accumulator, aim to provide a kind of current path that can effectively shorten between bus-bar, reduce lead-acid accumulator and the electric motor car of the fluctuation of internal resistance, temperature between caloric value and cell and electrical collector.It includes some cells being arranged side by side, each cell includes cell groove and pole group respectively, described pole group is formed across dividing plate is alternately arranged by some positive plates and some negative plates, anode ear on each positive plate of same pole group is connected by positive bus, and the negative electrode lug on each negative plate of same pole group is connected by negative bus-bar；It is joined directly together by metal connecting piece between negative bus-bar in the cell groove that the positive bus of described cell, negative bus-bar are adjacent with this cell, positive bus, each cell is connected in series, and each positive bus, negative bus-bar and metal connecting piece are positioned at sustained height.

Description

A kind of lead-acid accumulator and apply the electric motor car of this accumulator
Technical field
The present invention relates to a kind of accumulator, be specifically related to a kind of electric boosted automobile-used lead-acid accumulator and apply the electric motor car of this accumulator.
Background technology
The mode of pole bridge welding is generally used at present to connect each cell between the bus-bar of the opposed polarity of the neighboring unit cell in accumulator；And bus-bar is when the bus-bar using pole bridge to weld the opposed polarity connected between neighboring unit cell, not only making current path elongated, internal resistance increases, and caloric value increases, the fluctuation causing the temperature between cell and electrical collector increases, and affects the service life cycle of battery；And the connecting portion between pole and pole is also easy to produce the fracture that causes because of vibrations, causes that accumulator is bad, lost efficacy.
Of the prior art a kind of lead-acid accumulator as shown in Fig. 1, Fig. 3, Fig. 5, a pole 42 it is respectively equipped with on each positive bus of this lead-acid accumulator, negative bus-bar, it uses the mode of bridge welding to connect the upper end of two poles when connecting each cell, is together in series from by each cell；This lead-acid accumulator equally exists above-mentioned deficiency.
Such as, China Patent Publication No. CN201820840U, publication date on May 4th, 2011, the entitled accumulator of innovation and creation, including housing, it is provided with plate washer in housing and divides housing 135 into several battery cases, in each battery case, interval is provided with positive plate and negative plate, there is between positive plate and negative plate dividing plate, positive plate in each battery case is in parallel by positive bus, negative plate is in parallel by negative bus-bar, and the positive bus of adjacent cell groove is connected with negative bus-bar, and positive bus is connected in series with bridge by lead block with negative bus-bar.The accumulator of this application case uses mode that pole bridge welds to each cell of connecting equally, it is again such that current path is elongated, and internal resistance increases, and caloric value increases, the fluctuation causing the temperature between cell and electrical collector increases, and affects the service life cycle of battery；And easily produce the fracture caused because of vibrations, cause battery bad, lost efficacy.
On the other hand, the mounting structure of the positive terminal in accumulator or negative terminal (i.e. battery terminal) generally uses following structure at present: as shown in Figure 12 and Figure 13, the mounting structure of positive terminal 11a or negative terminal includes positive terminal 11a or negative terminal 11b, sealing ring 14, be connected as a single entity anode post terminal guiding 42a or negative terminal post terminal guiding and be arranged on the upper surface of upper cover the terminal rubber groove 12 corresponding with anode post terminal guiding or negative terminal post terminal guiding with bus-bar, and the bottom surface of terminal rubber groove is provided with sealing ring mounting groove 13.It is additionally provided with on the bottom surface of this sealing ring mounting groove and dodges through hole 15, and anode post terminal guiding or negative terminal post terminal guiding are each passed through and dodge through hole and be positioned at terminal rubber groove；When installing positive terminal or negative terminal, it is necessary first to sealing ring is enclosed within anode post terminal guiding or negative terminal post terminal guiding, and makes sealing ring be placed in sealing ring mounting groove, utilize sealing ring will dodge through hole envelope and hide；Then, positive terminal or negative terminal are directly connected with the anode post terminal guiding in terminal rubber groove or negative terminal post terminal guiding by welding；Followed by, in terminal rubber groove, inject casting glue, by the welding position embedding of positive and negative electrode terminal Yu positive and negative end post terminal guiding.
In the mounting structure of current this kind of battery positive voltage terminal or negative terminal, it is positioned at directly over the battery case of accumulator owing to dodging through hole, in order to avoid in terminal rubber groove during encapsulating, the casting glue in terminal rubber groove is dropped onto in the battery case of accumulator by anode post terminal guiding or negative terminal post terminal guiding and the gap dodged between through hole；Thus need by manually sealing ring being enclosed between positive and negative end post terminal guiding and sealing ring mounting groove before positive and negative electrode terminal welds with positive and negative end post terminal guiding, utilize sealing ring will dodge through hole envelope and hide.Owing to current this kind of battery positive voltage terminal or negative terminal need to install sealing ring in installation process, this not only adds installation procedure, the more important thing is, operation employee's neglected loading sealing ring is often produced during reality produces, or sealing ring installation is not in place, envelope the most completely hides and allows through hole, when causing encapsulating in terminal rubber groove, casting glue in terminal rubber groove is dropped onto in the battery case of accumulator by anode post terminal guiding or negative terminal post terminal guiding and the gap dodged between through hole, affect normally using of accumulator.
Summary of the invention
The first object of the present invention is to overcome accumulator of the prior art to use the welding of pole bridge to connect the bus-bar of the opposed polarity between neighboring unit cell, not only make current path elongated, internal resistance increases, caloric value increases, the fluctuation causing the temperature between cell and electrical collector increases, and affects the service life cycle of battery；And the problem that the connecting portion between pole and pole is also easy to produce the fracture caused because of vibrations, there is provided a kind of and not only can effectively shorten the current path between bus-bar, reduce internal resistance, temperature between caloric value and cell and the fluctuation of electrical collector, improve the cycle life of battery；And the connective stability between each cell can be improved, effectively reduce because shaking the lead-acid accumulator of the breakage problem caused and applying the electric motor car of this accumulator.
The present invention on the basis of the first purpose another object is that in order to overcome the positive and negative electrode terminal of accumulator of the prior art need in installation process install sealing ring not only increase installation procedure, and easily because operating the error of employee during reality produces, produce neglected loading sealing ring or sealing ring is installed not in place, the casting glue in terminal rubber groove is caused to drop onto in the battery case of accumulator by dodging through hole, affect the normal problem used of accumulator, it is provided that the installation procedure of a kind of positive and negative electrode terminal that not only can simplify accumulator；And can drop onto in the battery case of accumulator by the casting glue effectively solved in terminal rubber groove, affect the lead-acid accumulator of the problem that accumulator normally uses and apply the electric motor car of this accumulator.
The technical scheme is that
A kind of lead-acid accumulator, including some cells being arranged side by side, each cell includes cell groove and the pole group being arranged in cell groove respectively, described pole group is formed across dividing plate is alternately arranged by some positive plates and some negative plates, anode ear on each positive plate of same pole group is connected by positive bus, and the negative electrode lug on each negative plate of same pole group is connected by negative bus-bar；It is joined directly together by metal connecting piece between negative bus-bar in the cell groove that the positive bus of described cell, negative bus-bar are adjacent with this cell, positive bus, each cell is connected in series, and each positive bus, negative bus-bar and metal connecting piece are positioned at sustained height.
Owing to being joined directly together by metal connecting piece between the negative bus-bar in the cell groove that the positive bus of cell of this programme, negative bus-bar are adjacent with this cell, positive bus, and in each positive bus, negative bus-bar and metal connecting piece are generally aligned in the same plane；The i.e. bus-bar of the opposed polarity of neighboring unit cell uses " use and be joined directly together without pole ", only uses the metal connecting pieces such as lead, aluminum or copper material to be attached；This makes the current path that not only can effectively shorten between bus-bar, and internal resistance reduces, and along with internal resistance reduces, caloric value also reduces, and temperature and the fluctuation of electrical collector between cell also reduce, thus improve the cycle life of battery；On the other hand, in being generally aligned in the same plane due to positive bus, negative bus-bar and metal connecting piece, this is beneficial to upper cover and seals positive bus, negative bus-bar and metal connecting piece, thus reduces the fracture that vibrations cause.
As preferably, including battery container and the upper cover of envelope screening battery container upper port of upper end open, evenly distributed being distributed in battery container of each cell groove, described positive bus, negative bus-bar and metal connecting piece are positioned at above cell groove.
As preferably, upper cover lower surface is provided with the storage tank that some and each positive bus, negative bus-bar and metal connecting piece are corresponding, each positive bus, negative bus-bar and metal connecting piece are contained in the storage tank of correspondence, in described storage tank, embedding has casting glue, and each positive bus, negative bus-bar and metal connecting piece are potted in storage tank by described casting glue.
Owing to positive bus, negative bus-bar and metal connecting piece are positioned at above cell groove, and each positive bus, negative bus-bar and metal connecting piece are potted in the storage tank of upper cover by casting glue, so by casting glue, each positive bus, negative bus-bar and metal connecting piece are connected as a single entity, it is possible not only to improve the connective stability between each cell, effectively reduce the fracture caused because of vibrations, extend the service life using accumulator；And each positive bus, negative bus-bar and metal connecting piece are positioned at the storage tank of upper cover, this has greatly saved the inner space of accumulator, has improve the effective energy space of internal storage battery, is conducive to improving the large current density power of lead-acid accumulator.
As preferably, this lead-acid accumulator has an anode post terminal guiding and a negative terminal post terminal guiding, each positive bus of each cell being connected in series and negative bus-bar are positioned at the positive bus at two ends and the positive terminal of negative bus-bar formation lead-acid accumulator and negative pole end, described anode post terminal guiding is connected as a single entity with the positive bus of the positive terminal constituting lead-acid accumulator, and negative terminal post terminal guiding is connected as a single entity with the negative bus-bar of the negative pole end constituting lead-acid accumulator；It is provided with the anode pole holding tank for accommodating anode post terminal guiding in described storage tank and accommodates the negative terminal pole holding tank of negative terminal post terminal guiding；Position corresponding with anode pole holding tank and negative terminal pole holding tank on the upper surface of described upper cover is respectively equipped with terminal rubber groove, described anode pole holding tank up extends with being respectively equipped with on the bottom surface of negative terminal pole holding tank and is formed in corresponding terminal rubber groove the pole containing groove of projection, and the bottom surface of pole containing groove is positioned at the top of cap upper surface；Described anode post terminal guiding is positioned at corresponding pole containing groove with the top of negative terminal post terminal guiding, and the top of anode post terminal guiding and negative terminal post terminal guiding is positioned at the top of cap upper surface；This lead-acid accumulator also has a positive terminal and a negative terminal；Each positive bus, negative bus-bar, metal connecting piece, anode post terminal guiding and negative terminal post terminal guiding are potted in storage tank by described casting glue；After the casting glue in storage tank solidifies, by the most protruding removing in terminal rubber groove, and make anode post terminal guiding expose in terminal rubber groove with the top of negative terminal post terminal guiding, described positive terminal is directly connected with the anode post terminal guiding exposed in terminal rubber groove by welding, and described negative terminal is directly connected with the negative terminal post terminal guiding exposed in terminal rubber groove by welding.
The installation of the battery positive and negative electrode terminal of this programme is carried out after accumulator covers, i.e. after upper cover envelope hides battery container upper port, and carry out after the casting glue solidification in storage tank.The mounting means of the battery positive and negative electrode terminal of this programme is as follows:
First, after the casting glue in storage tank solidifies, more precisely, after the casting glue in positive and negative end pole holding tank solidifies；By the most protruding removing in terminal rubber groove, and anode post terminal guiding is made to expose in terminal rubber groove with the top of negative terminal post terminal guiding；
Then, positive terminal is directly connected with the anode post terminal guiding exposed in terminal rubber groove by welding, negative terminal is directly connected with the negative terminal post terminal guiding exposed in terminal rubber groove by welding；
Finally, in two-terminal glue groove, inject casting glue respectively, by the welding position embedding of the welding position of positive terminal and anode post terminal guiding and negative terminal with negative terminal post terminal guiding.
Mounting structure and the installation method of the battery positive and negative electrode terminal of this programme are entirely different with current accumulator positive, the mounting structure of negative terminal and installation method；
Owing to the casting glue in positive and negative end pole holding tank solidifies, positive and negative end pole holding tank is filled up completely with by casting glue, thus now by after the most protruding removing in terminal rubber groove, the bottom of terminal rubber groove also will not communicate (being blocked by casting glue) with the cell groove within battery container；Thus can directly directly weld on positive and negative end post terminal guiding by positive and negative electrode terminal, and in two-terminal glue groove, directly inject casting glue；Without the mounting structure of the positive and negative electrode terminal in the most existing accumulator needing arrange sealing ring mounting groove and arrange sealing ring installation procedure, sealing ring is enclosed within anode post terminal guiding or negative terminal post terminal guiding, and make sealing ring be placed in sealing ring mounting groove, utilize sealing ring will dodge through hole envelope to hide, it is to avoid terminal rubber groove communicates with the cell groove within battery container；Thus the mounting structure of the battery positive and negative electrode terminal of this programme not only can simplify the installation procedure of positive and negative electrode terminal of accumulator；And can drop onto in the battery case of accumulator by the casting glue effectively solved in terminal rubber groove, affect the problem that accumulator normally uses.
On the other hand, owing to the bottom surface of pole containing groove is positioned at the top of upper cap upper surface, and in corresponding terminal rubber groove, form projection, and the top of positive and negative end post terminal guiding is positioned at the top of cap upper surface；So in actual mechanical process, operation employee can make the top of positive and negative end post terminal guiding expose in terminal rubber groove by the way of by projection removal；Simultaneously, owing to being formed with projection in terminal rubber groove, making to operate employee and easily and efficiently at least part of projection can be ground off (removal) by milling tools such as small electrical grinding machines, this is advantageous to actual production and makes, and improves production efficiency, reduces operation easier.
As preferably, the grid in positive and negative pole plate is provided with two grooves, and grid is divided into three parts by two grooves on along its length.Owing to the grid in positive and negative pole plate is provided with two grooves, article two, grid is divided into three parts by groove on along its length, compared with prior art this not only makes positive and negative pole plate have the advantage that structure is more stable, reduce weight, and to the afflux of electric current, conflux and the effect of defeated stream is the most excellent smooth and easy, improve flow, make electric current more be evenly distributed in active substance, be conducive to improving the activity of active substance.
As preferably, the thickness of every positive plate is more than the thickness of every negative plate；The sectional area of the anode ear on every positive plate is more than or equal to 0.62 less than or equal to 0.7 less than or equal to the sectional area sum of the anode ear on 0.74, and each positive plate with the ratio of the sectional area sum of the negative electrode lug on each negative plate more than or equal to 0.59 with the ratio of the sectional area of the negative electrode lug on every negative plate.
In accumulator field, known to those skilled in the art: in order to make positive pole consistent with the conductive characteristic of negative pole, the lug of positive plate should be identical with the sectional area of the lug of negative plate, this is because the sectional area of conductive materials is proportional to resistance；But this programme breaks this convention, but achieves unexpected effect.In the state of the art (in the case of the lug of positive plate is identical with the sectional area of the lug of negative plate), the reaction resistance of positive plate reduces, positive electrode active material utilization during high rate discharging increases, but this also makes the deterioration of positive active material accelerate, thus affects the cycle life of lead-acid accumulator.On the other hand, in the lead-acid accumulator of the present invention, by resetting the ratio of the sectional area of the lug of positive/negative plate, the sectional area making the anode ear on every positive plate suitably diminishes relative to the sectional area of the negative electrode lug on every negative plate, thus reduces electrical collector, high rate discharging time avoid the overdischarge of positive electrode active material, thus when electricity is relatively low, need not the highest magnitude of current, be therefore prevented from positive electrode active material layer and destroy, thus extend the cycle life of lead-acid accumulator；But the sectional area that can not make anode ear reduces too much relative to the sectional area of negative electrode lug, otherwise can affect the chemical reaction of electrode, and make the internal resistance of cell increase, so that output also reduces, cycle life reduces.
As preferably, including cover plate, this cover plate is provided with the protection block matched with acid filling mouth, and cover plate edge is additionally provided with at least two air vent.
A kind of electric motor car, including above-mentioned lead-acid accumulator.
The invention has the beneficial effects as follows:
One, not only can effectively shorten the current path between bus-bar, reduces internal resistance, temperature between caloric value and cell and the fluctuation of electrical collector, improves the cycle life of battery；And the connective stability between each cell can be improved, effectively reduce the breakage problem caused because of vibrations.
Its two, not only can simplify the installation procedure of the positive and negative electrode terminal of accumulator；And can drop onto in the battery case of accumulator by the casting glue effectively solved in terminal rubber groove, affect the problem that accumulator normally uses.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art lead-acid accumulator；
Fig. 2 is the structural representation of lead-acid accumulator of the present invention；
Fig. 3 is the pole cluster structure schematic diagram of prior art lead-acid accumulator；
Fig. 4 is the pole cluster structure schematic diagram of lead-acid accumulator of the present invention；
Fig. 5 is the battery case structure schematic diagram of prior art lead-acid accumulator；
Fig. 6 is the battery case structure schematic diagram of lead-acid accumulator of the present invention；
Fig. 7 is the single pole group structure schematic diagram of prior art lead-acid accumulator；
Fig. 8 is the single pole group structure schematic diagram of lead-acid accumulator of the present invention；
Fig. 9 is the grid structure schematic diagram of prior art lead-acid accumulator；
Figure 10 is the grid structure schematic diagram of lead-acid accumulator of the present invention；
Figure 11 is the cover plate structural representation of lead-acid accumulator of the present invention；
Figure 12 is a kind of part section structural representation of prior art lead-acid accumulator；
Figure 13 is the partial enlarged drawing in Figure 12 at A；
A kind of part section structural representation of Figure 14 lead-acid accumulator of the present invention；
Figure 15 is the partial enlarged drawing in Figure 14 at B；
Figure 16 is the partial enlarged drawing in Figure 14 at C.
In figure: positive plate 1, anode ear 1a, negative plate 2, negative electrode lug 2a, battery container 3, cell groove 31, pole group 4, grid 5, groove 6, cover plate 7, protects block 8, air vent 9, upper cover 10, positive terminal 11a, a negative terminal 11b, terminal rubber groove 12, protruding 12a, sealing ring mounting groove 13, sealing ring 14, dodge through hole 15, storage tank 16, anode pole holding tank 17, pole containing groove 18；Positive bus 41a, negative bus-bar 41b, pole 42, anode post terminal guiding 42a, negative terminal post terminal guiding 42b, metal connecting piece 43.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings:
Embodiment 1: as shown in Fig. 2, Fig. 4, Fig. 6, Fig. 8, Figure 14, a kind of lead-acid accumulator includes a positive terminal 11a, one negative terminal 11b, one anode post terminal guiding 42a, one negative terminal post terminal guiding 42b, cover plate, the battery container 3 of upper end open, envelope hides the upper cover 10 of battery container upper port and some cells being disposed side by side in battery container.Each cell includes cell groove 31 and the pole group 4 being arranged in cell groove respectively.Each evenly distributed being distributed in battery container of cell groove.Pole group is formed across dividing plate is alternately arranged by some positive plates 1 and some negative plates 2.
Anode ear on each positive plate of same pole group is connected by positive bus 41a, and the negative electrode lug on each negative plate of same pole group is connected by negative bus-bar 41b.It is joined directly together by metal connecting piece 43 between negative bus-bar in the cell groove that the positive bus of cell, negative bus-bar are adjacent with this cell, positive bus, each cell is connected in series.Each negative bus-bar, positive bus in the present embodiment can pass through mould integrally casting molding with metal connecting piece.Can also be joined directly together by welding between negative bus-bar, positive bus and metal connecting piece in the present embodiment.Each positive bus of each cell being connected in series and negative bus-bar are positioned at the positive bus at two ends and the positive terminal of negative bus-bar formation lead-acid accumulator and negative pole end.Anode post terminal guiding 42a is connected as a single entity with the positive bus of the positive terminal constituting lead-acid accumulator, and negative terminal post terminal guiding 42b is connected as a single entity with the negative bus-bar of the negative pole end constituting lead-acid accumulator.Each positive bus, negative bus-bar and metal connecting piece are positioned at above cell groove, and each positive bus, negative bus-bar and metal connecting piece are positioned at sustained height.
As shown in Figure 14, Figure 15, Figure 16, upper cover 10 lower surface is provided with the storage tank 16 that some and each positive bus, negative bus-bar and metal connecting piece are corresponding.It is provided with the anode pole holding tank 17 for accommodating anode post terminal guiding in storage tank and accommodates the negative terminal pole holding tank of negative terminal post terminal guiding.Position corresponding with anode pole holding tank and negative terminal pole holding tank on the upper surface of upper cover is respectively equipped with terminal rubber groove 12.Anode pole holding tank up extends with being respectively equipped with on the bottom surface of negative terminal pole holding tank and is formed in corresponding terminal rubber groove the pole containing groove 18 of projection 12a, and the bottom surface of pole containing groove is positioned at the top of cap upper surface.Each positive bus, negative bus-bar and metal connecting piece are contained in the storage tank of correspondence.Anode post terminal guiding is positioned at anode pole holding tank, and the top of anode post terminal guiding is positioned at the pole containing groove of correspondence, and the top of anode post terminal guiding is positioned at the top of cap upper surface.Negative terminal post terminal guiding is positioned at negative terminal pole holding tank, and the top of negative terminal post terminal guiding is positioned at the pole containing groove of correspondence, and the top of negative terminal post terminal guiding is positioned at the top of cap upper surface.In storage tank, anode pole holding tank and negative terminal pole holding tank, embedding has casting glue, and each positive bus, negative bus-bar, metal connecting piece, anode post terminal guiding and negative terminal post terminal guiding are potted in storage tank by described casting glue.After casting glue solidifies, by the most protruding removing in terminal rubber groove, and anode post terminal guiding is made to expose in terminal rubber groove with the top of negative terminal post terminal guiding.Easily and efficiently at least part of projection can be ground off (removal) by milling tools such as small electrical grinding machines in practical operation.Positive terminal is directly connected with the anode post terminal guiding exposed in terminal rubber groove by welding.Negative terminal is directly connected with the negative terminal post terminal guiding exposed in terminal rubber groove by welding.The casting glue being respectively equipped with in two-terminal glue groove in casting glue, and two-terminal glue groove is by the welding position embedding of the welding position of positive terminal and anode post terminal guiding and negative terminal with negative terminal post terminal guiding.Casting glue in the present embodiment is heat conduction casting glue, such as heat conduction embedding epoxy glue.
As shown in Figure 10, the grid 5 in positive and negative pole plate is provided with two grooves 6, and grid is divided into three parts by two grooves on along its length.As shown in Figure 9, a kind of grid of prior art lead-acid accumulator, this grid only has a groove 6, the present invention is relative to prior art, there is the advantage that structure is more stable, reduce weight, and to the afflux of electric current, conflux and the effect of defeated stream is the most excellent smooth and easy, improve flow, make electric current more be evenly distributed in active substance, be conducive to improving the activity of active substance.
As shown in figure 11, cover plate 7 is provided with the protection block 8 matched with acid filling mouth, and cover plate edge is additionally provided with at least two air vent 9.
In the lead-acid accumulator of the present embodiment: owing to being joined directly together by metal connecting piece between the negative bus-bar in the cell groove that the positive bus of cell of this programme, negative bus-bar are adjacent with this cell, positive bus, and each positive bus, negative bus-bar and metal connecting piece are positioned at sustained height；The i.e. bus-bar of the opposed polarity of neighboring unit cell uses " use and be joined directly together without pole ", only uses the metal connecting pieces such as lead, aluminum or copper material to be attached；This makes the current path that not only can effectively shorten between bus-bar, and internal resistance reduces, and along with internal resistance reduces, caloric value also reduces, and temperature and the fluctuation of electrical collector between cell also reduce, thus improve the cycle life of battery.Further, since positive bus, negative bus-bar and metal connecting piece are positioned at above cell groove, and each positive bus, negative bus-bar and metal connecting piece are potted in the storage tank of upper cover by casting glue；So by casting glue, each positive bus, negative bus-bar and metal connecting piece are connected as a single entity, are possible not only to improve the connective stability between each cell, effectively reduce the fracture caused because of vibrations, extend the service life using accumulator；And each positive bus, negative bus-bar and metal connecting piece are positioned at the storage tank of upper cover, this has greatly saved the inner space of accumulator, has improve the effective energy space of internal storage battery, is conducive to improving the large current density power of lead-acid accumulator.
On the other hand, the installation of the battery positive and negative electrode terminal of the present embodiment is carried out after accumulator covers, i.e. after upper cover envelope hides battery container upper port, and carry out after the casting glue solidification in storage tank.The mounting means of the battery positive and negative electrode terminal of this programme is as follows:
First, after the casting glue in storage tank solidifies, more precisely, after the casting glue in positive and negative end pole holding tank solidifies；By the most protruding removing in terminal rubber groove, and anode post terminal guiding is made to expose in terminal rubber groove with the top of negative terminal post terminal guiding；
Then, positive terminal is directly connected with the anode post terminal guiding exposed in terminal rubber groove by welding, negative terminal is directly connected with the negative terminal post terminal guiding exposed in terminal rubber groove by welding；
Finally, in two-terminal glue groove, inject casting glue respectively, by the welding position embedding of the welding position of positive terminal and anode post terminal guiding and negative terminal with negative terminal post terminal guiding.
Mounting structure and the installation method of the battery positive and negative electrode terminal of this programme are entirely different with current accumulator positive, the mounting structure of negative terminal and installation method；
Owing to the casting glue in positive and negative end pole holding tank solidifies, positive and negative end pole holding tank is filled up completely with by casting glue, thus now by after the most protruding removing in terminal rubber groove, the bottom of terminal rubber groove also will not communicate (being blocked by casting glue) with the cell groove within battery container；Thus can directly directly weld on positive and negative end post terminal guiding by positive and negative electrode terminal, and in two-terminal glue groove, directly inject casting glue；Without the mounting structure of the positive and negative electrode terminal in the most existing accumulator needing arrange sealing ring mounting groove and arrange sealing ring installation procedure, sealing ring is enclosed within anode post terminal guiding or negative terminal post terminal guiding, and make sealing ring be placed in sealing ring mounting groove, utilize sealing ring will dodge through hole envelope to hide, it is to avoid terminal rubber groove communicates with the cell groove within battery container；Thus the mounting structure of the battery positive and negative electrode terminal of this programme not only can simplify the installation procedure of positive and negative electrode terminal of accumulator；And can drop onto in the battery case of accumulator by the casting glue effectively solved in terminal rubber groove, affect the problem that accumulator normally uses.
Embodiment 2, remaining structure of the present embodiment is with reference to embodiment 1, and its difference is:
The thickness of every positive plate is more than the thickness of every negative plate.As shown in Figure 8, the ratio of the sectional area of the negative electrode lug 2a on the sectional area of the anode ear 1a on every positive plate 1 and every negative plate 2 is more than or equal to 0.59 less than or equal to 0.74, and the sectional area of the anode ear on every positive plate in the present embodiment is 0.59 or 0.62 or 0.64 or 0.68 or 0.7 or 0.72 or 0.74 with the ratio of the sectional area of the negative electrode lug on every negative plate.The sectional area sum of the anode ear on each positive plate is more than or equal to 0.62 less than or equal to 0.7 with the ratio of the sectional area sum of the negative electrode lug on each negative plate.The sectional area sum of the anode ear on each positive plate in the present embodiment is 0.62 or 0.63 or 0.68 or 0.7 with the ratio of the sectional area sum of the negative electrode lug on each negative plate.
In accumulator field, known to those skilled in the art: in order to make positive pole consistent with the conductive characteristic of negative pole, the lug of positive plate should be identical with the sectional area of the lug of negative plate, this is because the sectional area of conductive materials is proportional to resistance；But the present invention breaks this convention, but achieves unexpected effect.In the state of the art (in the case of the lug of positive plate is identical with the sectional area of the lug of negative plate), the reaction resistance of positive plate reduces, positive electrode active material utilization during high rate discharging increases, but this also makes the deterioration of positive active material accelerate, thus affects the cycle life of lead-acid accumulator.On the other hand, in the lead-acid accumulator of the present invention, by resetting the ratio of the sectional area of the lug of positive/negative plate, the sectional area making the anode ear on every positive plate suitably diminishes relative to the sectional area of the negative electrode lug on every negative plate, thus reduces electrical collector, high rate discharging time avoid the overdischarge of positive electrode active material, thus when electricity is relatively low, need not the highest magnitude of current, be therefore prevented from positive electrode active material layer and destroy, thus extend the cycle life of lead-acid accumulator；But the sectional area that can not make anode ear reduces too much relative to the sectional area of negative electrode lug, otherwise can affect the chemical reaction of electrode, and make the internal resistance of cell increase, so that output also reduces, cycle life reduces.
Embodiment 3: present embodiments providing a kind of electric motor car, this electric motor car includes a kind of lead-acid accumulator described in any one embodiment of embodiment 1-2.

Claims (5)

1. a lead-acid accumulator, battery container (3) including upper end open, envelope hides the upper cover (10) of battery container upper port, some cells being arranged side by side, each cell includes cell groove (31) and the pole group (4) being arranged in cell groove respectively, described pole group is formed across dividing plate is alternately arranged by some positive plates (1) and some negative plates (2), anode ear on each positive plate of same pole group is connected by positive bus (41a), and the negative electrode lug on each negative plate of same pole group is connected by negative bus-bar (41b)；It is characterized in that, it is joined directly together by metal connecting piece (43) between negative bus-bar in the cell groove that the positive bus of described cell, negative bus-bar are adjacent with this cell, positive bus, each cell is connected in series, and each positive bus, negative bus-bar and metal connecting piece are positioned at sustained height；
Evenly distributed being distributed in battery container of each cell groove, described positive bus, negative bus-bar and metal connecting piece are positioned at above cell groove；
Described upper cover lower surface is provided with the storage tank (16) that some and each positive bus, negative bus-bar and metal connecting piece are corresponding, each positive bus, negative bus-bar and metal connecting piece are contained in the storage tank of correspondence, in described storage tank, embedding has casting glue, and each positive bus, negative bus-bar and metal connecting piece are potted in storage tank by described casting glue；
This lead-acid accumulator has an anode post terminal guiding (42a) and a negative terminal post terminal guiding (42b), each positive bus of each cell being connected in series and negative bus-bar are positioned at the positive bus at two ends and the positive terminal of negative bus-bar formation lead-acid accumulator and negative pole end, described anode post terminal guiding is connected as a single entity with the positive bus of the positive terminal constituting lead-acid accumulator, and negative terminal post terminal guiding is connected as a single entity with the negative bus-bar of the negative pole end constituting lead-acid accumulator；It is provided with anode pole holding tank (17) for accommodating anode post terminal guiding in described storage tank and accommodates the negative terminal pole holding tank of negative terminal post terminal guiding；Position corresponding with anode pole holding tank and negative terminal pole holding tank on the upper surface of described upper cover is respectively equipped with terminal rubber groove (12), described anode pole holding tank up extends with being respectively equipped with on the bottom surface of negative terminal pole holding tank and is formed in corresponding terminal rubber groove the pole containing groove (18) of protruding (12a), and the bottom surface of pole containing groove is positioned at the top of cap upper surface；Described anode post terminal guiding is positioned at corresponding pole containing groove with the top of negative terminal post terminal guiding, and the top of anode post terminal guiding and negative terminal post terminal guiding is positioned at the top of cap upper surface；
This lead-acid accumulator also has a positive terminal (11a) and a negative terminal (11b)；Each positive bus, negative bus-bar, metal connecting piece, anode post terminal guiding and negative terminal post terminal guiding are potted in storage tank by described casting glue；After the casting glue in storage tank solidifies, by the most protruding removing in terminal rubber groove, and make anode post terminal guiding expose in terminal rubber groove with the top of negative terminal post terminal guiding, described positive terminal is directly connected with the anode post terminal guiding exposed in terminal rubber groove by welding, and described negative terminal is directly connected with the negative terminal post terminal guiding exposed in terminal rubber groove by welding.
A kind of lead-acid accumulator the most according to claim 1, is characterized in that, the grid in described positive and negative pole plate is provided with two grooves, and grid is divided into three parts by two grooves on along its length.
A kind of lead-acid accumulator the most according to claim 1, is characterized in that, the thickness of every positive plate is more than the thickness of every negative plate；The sectional area of the anode ear on every positive plate is more than or equal to 0.62 less than or equal to 0.7 less than or equal to the sectional area sum of the anode ear on 0.74, and each positive plate with the ratio of the sectional area sum of the negative electrode lug on each negative plate more than or equal to 0.59 with the ratio of the sectional area of the negative electrode lug on every negative plate.
A kind of lead-acid accumulator the most according to claim 1, is characterized in that, including cover plate, this cover plate is provided with the protection block matched with acid filling mouth, and cover plate edge is additionally provided with at least two air vent.
5. an electric motor car, it is characterised in that: include a kind of lead-acid accumulator described in any one of claim 1-4.
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CN103456998A (en) * 2013-08-16 2013-12-18 超威电源有限公司 Lead-acid storage battery and assembly process thereof
CN203826467U (en) * 2013-08-16 2014-09-10 超威电源有限公司 Lead-acid storage battery and electric vehicle applying same

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CN104064717B (en) 2016-07-06
CN103996878A (en) 2014-08-20
CN104064717A (en) 2014-09-24
CN104064820A (en) 2014-09-24
CN203826467U (en) 2014-09-10
CN104064723A (en) 2014-09-24
CN203839471U (en) 2014-09-17
CN203839473U (en) 2014-09-17
CN203826466U (en) 2014-09-10
CN104064718A (en) 2014-09-24
CN103456998A (en) 2013-12-18
CN104064821A (en) 2014-09-24
CN104064821B (en) 2016-06-29

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