CN105024036A - Lead-acid storage battery and electric car using such lead-acid storage battery - Google Patents
Lead-acid storage battery and electric car using such lead-acid storage battery Download PDFInfo
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- 238000003860 storage Methods 0.000 title claims abstract description 69
- 239000002253 acid Substances 0.000 title claims abstract description 58
- 239000002184 metal Substances 0.000 claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- 239000003292 glue Substances 0.000 claims description 47
- 238000005266 casting Methods 0.000 claims description 42
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- 230000002459 sustained Effects 0.000 claims description 4
- 238000004904 shortening Methods 0.000 abstract 1
- 239000011133 lead Substances 0.000 description 41
- 238000007789 sealing Methods 0.000 description 30
- 238000003466 welding Methods 0.000 description 19
- 238000009434 installation Methods 0.000 description 17
- 238000007711 solidification Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000007774 positive electrode material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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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- 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 lead-acid storage battery and an electric car using such a lead-acid storage battery, and aims at providing a lead-acid storage battery capable of effectively shortening a current path between bus bars and reducing internal resistance, heat value, and temperature and current collection property fluctuation among single batteries, and an electric car. The lead-acid storage battery comprises a plurality of single batteries arranged side by side, each single battery comprises a single battery jar and a polar group, the polar group is composed of a plurality of positive plates and a plurality of negative plates which are arranged alternatively in a manner of being separated by separators, positive lugs on the positive plates of the same polar group are connected through a positive bus bar, and negative lugs on the negative plates of the same polar group are connected through a negative bus bar; the positive bus bar and the negative bus bar of the single battery are directly connected with the negative bus bar and the positive bus bar in the single battery jar adjacent to the single battery through metal connectors, the single batteries are connected in series, and the positive bus bars, the negative bus bars and the metal connectors are located at the same height.
Description
The application is the applying date: on April 30th, 2014, application number is: 2014101845344, and denomination of invention is: a kind of lead acid accumulator and apply the divisional application of electric motor car of this storage battery.
Technical field
The present invention relates to a kind of storage battery, be specifically related to a kind of electric boosted automobile-used lead acid accumulator and apply the electric motor car of this storage battery.
Background technology
Usually the mode of pole bridge welding is adopted to connect each cell between the bus-bar of the opposed polarity of the neighboring unit cell in current storage battery; And bus-bar is when adopting 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, and caloric value increases, cause the fluctuation of the temperature between cell and electrical collector to increase, affect the service life cycle of battery; And the connecting portion between pole and pole also easily produces the fracture caused because of vibrations, cause storage battery bad, lost efficacy.
Of the prior art a kind of lead acid accumulator as shown in Fig. 1, Fig. 3, Fig. 5, each positive bus of this lead acid accumulator, negative bus-bar are respectively equipped with a pole 42, it adopts the mode of bridge welding to connect the upper end of two poles when connecting each cell, be together in series from by each cell; There is above-mentioned deficiency equally in this lead acid accumulator.
Such as, China Patent Publication No. CN201820840U, publication date on May 4th, 2011, the name of innovation and creation is called storage battery, comprise housing, be provided with plate washer in housing and housing is divided into several battery cases, in each battery case, interval is provided with positive plate and negative plate, between positive plate and negative plate, there is 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 and negative bus-bar are connected in series by lead block and bridge.The mode that the storage battery of this application case adopts pole bridge to weld equally is to each cell of connecting, it makes current path elongated equally, and internal resistance increases, and caloric value increases, cause the fluctuation of the temperature between cell and electrical collector to increase, affect 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 current storage battery or negative terminal (i.e. battery terminal) adopts following structure usually: as shown in Figure 12 and Figure 13, the mounting structure of positive terminal 11a or negative terminal comprises positive terminal 11a or negative terminal 11b, sealing ring 14, with bus-bar be connected as a single entity anode post terminal guiding 42a or negative terminal post terminal guiding and be arranged on upper cover upper surface and with anode post terminal guiding or the corresponding terminal rubber groove 12 of negative terminal post terminal guiding, and the bottom surface of terminal rubber groove is provided with sealing ring mounting groove 13.The bottom surface of sealing circle mounting groove is also provided with 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, first needing sealing ring to be enclosed within anode post terminal guiding or negative terminal post terminal guiding, and sealing ring is 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; Again then, in terminal rubber groove, inject casting glue, by the welding position embedding of positive and negative electrode terminal and positive and negative end post terminal guiding.
In the mounting structure of current this kind of battery positive voltage terminal or negative terminal, directly over the battery case being positioned at storage battery owing to dodging through hole, in order to avoid in terminal rubber groove during encapsulating, the casting glue in terminal rubber groove drops onto in the battery case of storage battery by anode post terminal guiding or negative terminal post terminal guiding and the gap of dodging between through hole; Thus needing 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, utilizing sealing ring will dodge through hole envelope and hiding.Because 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, operative employee's neglected loading sealing ring is often produced in actual production process, or sealing ring is installed not in place, envelope hides and allows through hole completely, when causing encapsulating in terminal rubber groove, casting glue in terminal rubber groove is dropped onto in the battery case of storage battery by anode post terminal guiding or negative terminal post terminal guiding and the gap of dodging between through hole, affects the normal use of storage battery.
Summary of the invention
The first object of the present invention adopts the welding of pole bridge to connect the bus-bar of the opposed polarity between neighboring unit cell to overcome storage battery of the prior art, not only make current path elongated, internal resistance increases, caloric value increases, cause the fluctuation of the temperature between cell and electrical collector to increase, affect the service life cycle of battery; And the connecting portion between pole and pole also easily produces the problem of the fracture caused because of vibrations, a kind of current path that not only can effectively shorten between bus-bar is provided, temperature between reduction internal resistance, caloric value and cell and the fluctuation of electrical collector, improve the cycle life of battery; And the connective stability that can improve between each cell, effectively reduce because shaking the lead acid accumulator of the breakage problem caused and applying the electric motor car of this storage battery.
The present invention's another object on the first object basis is that the positive and negative electrode terminal in order to overcome storage battery of the prior art needs installation sealing ring to not only increase installation procedure in installation process, and the error easily because of operative employee in actual production process, generation neglected loading sealing ring or sealing ring are installed not in place, the casting glue in terminal rubber groove is caused to drop onto in the battery case of storage battery by dodging through hole, affect the problem of the normal use of storage battery, a kind of installation procedure that not only can simplify the positive and negative electrode terminal of storage battery is provided; And can drop onto in the battery case of storage battery by the casting glue effectively solved in terminal rubber groove, affect the lead acid accumulator of the problem that storage battery normally uses and apply the electric motor car of this storage battery.
Technical scheme of the present invention is:
A kind of lead acid accumulator, comprise the battery container of upper end open, envelope hides the upper cover of battery container upper port and some evenly distributed cells be distributed in battery container, each cell comprises the cell groove be arranged in battery container and the pole group be arranged in cell groove respectively, described pole group to be alternately arranged across dividing plate by some positive plates and some negative plates and to form, 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; The positive bus of described cell, negative bus-bar are directly connected by metal connecting piece with between the negative bus-bar in the adjacent cell groove of this cell, positive bus, described upper cover lower surface is provided with the corresponding storage tank of some and each positive bus, negative bus-bar and metal connecting piece, each positive bus, negative bus-bar and metal connecting piece are contained in corresponding storage tank, 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.
Because the positive bus of the cell of this programme, negative bus-bar are directly connected by metal connecting piece with between the negative bus-bar in the adjacent cell groove of this cell, positive bus, namely the bus-bar of the opposed polarity of neighboring unit cell adopts " adopt and be directly connected without pole ", only uses the metal connecting pieces such as lead, aluminium or copper material to connect; This makes the current path that not only can effectively shorten between bus-bar, and internal resistance reduces, and along with internal resistance reduction, caloric value also reduces, and the temperature between cell and the fluctuation of electrical collector also reduce, thus improves the cycle life of battery.
As preferably, positive bus, negative bus-bar and metal connecting piece are one-body molded.Because positive bus, negative bus-bar and metal connecting piece are one-body molded, this is conducive to the overall construction intensity of positive bus, negative bus-bar and metal connecting piece, thus reduces the fracture shaking and cause.
As preferably, each positive bus, negative bus-bar and metal connecting piece are positioned at sustained height.Because positive bus, negative bus-bar and metal connecting piece are positioned at same plane, this is conducive to upper cover and seals positive bus, negative bus-bar and metal connecting piece, thus reduces the fracture shaking and cause.
As preferably, this lead acid accumulator has an anode post terminal guiding and a negative terminal post terminal guiding, described anode post terminal guiding is connected as a single entity with the positive bus of the positive terminal forming 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 forming lead acid accumulator; Be provided with anode pole holding tank for holding anode post terminal guiding in described storage tank and hold the negative terminal pole holding tank of negative terminal post terminal guiding; Described anode post terminal guiding, described negative terminal post terminal guiding are potted in described storage tank by described casting glue.
As preferably, 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.
As preferably, anode pole holding tank up extends and in corresponding terminal rubber groove, forms protruding pole containing groove with the bottom surface of negative terminal pole holding tank is respectively equipped with, and the bottom surface of pole containing groove is positioned at the top of upper cover upper surface; Described anode post terminal guiding and the top of negative terminal post terminal guiding are positioned at corresponding pole containing groove, and the top of anode post terminal guiding and negative terminal post terminal guiding is positioned at the top of upper cover upper surface.
As preferably, this lead acid accumulator also has a positive terminal and a negative terminal; Described pole containing groove forms opening portion, the top of described anode post terminal guiding and negative terminal post terminal guiding is exposed in terminal rubber groove, described positive terminal is connected with the anode post terminal guiding exposed in terminal rubber groove, and described negative terminal is connected with the negative terminal post terminal guiding exposed in terminal rubber groove.
As preferably, the opening portion of pole containing groove is formed after described casting glue seals described anode post terminal guiding and negative terminal post terminal guiding.
The installation of battery positive and negative electrode terminal of the present invention is carried out after storage battery capping, namely after upper cap seal hides battery container upper port, and carry out after casting glue solidification in storage tank.The mounting means of battery positive and negative electrode terminal of the present invention is as follows:
First, after the casting glue solidification in storage tank, more precisely, after the casting glue solidification in positive and negative end pole holding tank; By at least part of projection removing in terminal rubber groove, and the top of anode post terminal guiding and negative terminal post terminal guiding is made to expose in terminal rubber groove;
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 positive terminal and the welding position of anode post terminal guiding and the welding position embedding of negative terminal and negative terminal post terminal guiding.
Mounting structure and the installation method of the mounting structure of the battery positive and negative electrode terminal of this programme and installation method and current accumulator positive, negative terminal are completely different;
Due to the casting glue solidification in positive and negative end pole holding tank, positive and negative end pole holding tank is filled by casting glue completely, thus now by after at least part of projection removing in terminal rubber groove, the bottom of terminal rubber groove also can not communicate (by casting glue shutoff) with the cell groove of battery container inside; Thus directly directly can weld on positive and negative end post terminal guiding by positive and negative electrode terminal, and directly in two-terminal glue groove, inject casting glue; And do not need to need in the mounting structure as the positive and negative electrode terminal in existing storage battery to 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, avoid terminal rubber groove to communicate with the cell groove of battery container inside; Thus the mounting structure of the battery positive and negative electrode terminal of this programme not only can simplify the installation procedure of the positive and negative electrode terminal of storage battery; And can drop onto in the battery case of storage battery by the casting glue effectively solved in terminal rubber groove, affect the problem that storage battery normally uses.
On the other hand, the bottom surface due to pole containing groove is positioned at the top of upper cover upper surface, and is formed protruding in the terminal rubber groove of correspondence, and the top of positive and negative end post terminal guiding is positioned at the top of upper cover upper surface; Like this in actual mechanical process, operative employee can, by mode projection removed, make the top of positive and negative end post terminal guiding expose in terminal rubber groove; Simultaneously, owing to being formed with projection in terminal rubber groove, make operative employee easily and efficiently at least part of projection can be ground off (removal) by milling tools such as small electrical grinding machines, this is extremely conducive to actual production and makes, and enhances productivity, reduces operation easier.
A kind of electric motor car, comprises above-mentioned lead acid accumulator.
The invention has the beneficial effects as follows:
One, not only effectively can shorten the current path between bus-bar, and the temperature between reduction internal resistance, caloric value and cell and the fluctuation of electrical collector, improve the cycle life of battery; And the connective stability that can improve between each cell, effectively reduce because shaking the breakage problem caused.
Its two, not only can simplify the installation procedure of the positive and negative electrode terminal of storage battery; And can drop onto in the battery case of storage battery by the casting glue effectively solved in terminal rubber groove, affect the problem that storage battery 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 at A place in Figure 12;
A kind of part section structural representation of Figure 14 lead acid accumulator of the present invention;
Figure 15 is the partial enlarged drawing at B place in Figure 14;
Figure 16 is the partial enlarged drawing at C place in Figure 14.
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, protection block 8, exhaust outlet 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, dodges 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.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
Embodiment 1: as shown in Fig. 2, Fig. 4, Fig. 6, Fig. 8, Figure 14, a kind of lead acid accumulator comprises a positive terminal 11a, a negative terminal 11b, an anode post terminal guiding 42a, a 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 be disposed side by side in battery container.Each cell comprises cell groove 31 respectively and is arranged on the pole group 4 in cell groove.Evenly distributed being distributed in battery container of each cell groove.Pole group to be alternately arranged across dividing plate by some positive plates 1 and some negative plates 2 and to form.
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.The positive bus of cell, negative bus-bar are directly connected by metal connecting piece 43 with between the negative bus-bar in the adjacent cell groove of this cell, positive bus, are connected in series by each cell.Each negative bus-bar, positive bus and metal connecting piece in the present embodiment can be shaping by mould integrally casting.Negative bus-bar in the present embodiment, between positive bus with metal connecting piece can also by welding directly be connected.Positive terminal and negative pole end that the positive bus at two ends and negative bus-bar form lead acid accumulator is positioned in each positive bus of each cell be connected in series and negative bus-bar.Anode post terminal guiding 42a is connected as a single entity with the positive bus of the positive terminal forming 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 forming 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 corresponding storage tank 16 of some and each positive bus, negative bus-bar and metal connecting piece.Be provided with anode pole holding tank 17 for holding anode post terminal guiding in storage tank and hold 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 and in corresponding terminal rubber groove, forms the pole containing groove 18 of protruding 12a with the bottom surface of negative terminal pole holding tank is respectively equipped with, and the bottom surface of pole containing groove is positioned at the top of upper cover upper surface.Each positive bus, negative bus-bar and metal connecting piece are contained in corresponding storage tank.Anode post terminal guiding is positioned at anode pole holding tank, and the top of anode post terminal guiding is positioned at corresponding pole containing groove, and the top of anode post terminal guiding is positioned at the top of upper cover 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 corresponding pole containing groove, and the top of negative terminal post terminal guiding is positioned at the top of upper cover upper surface.Storage tank, in anode pole holding tank and negative terminal pole holding tank, embedding has casting glue, and described casting glue is by each positive bus, negative bus-bar, metal connecting piece, and anode post terminal guiding and negative terminal post terminal guiding are potted in storage tank.When after casting glue solidification, by least part of projection removing in terminal rubber groove, and the top of anode post terminal guiding and negative terminal post terminal guiding is exposed in terminal rubber groove.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.Be respectively equipped with casting glue in two-terminal glue groove, and casting glue in two-terminal glue groove is by positive terminal and the welding position of anode post terminal guiding and the welding position embedding of negative terminal and negative terminal post terminal guiding.Casting glue in the present embodiment is heat conduction casting glue, 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, two grooves and grid is divided into three parts 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 more excellent smooth and easy, improve flow, electric current is evenly distributed in active material more, is conducive to the activity improving active material.
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 also provided with at least two exhaust outlets 9.
In the lead acid accumulator of the present embodiment: because the positive bus of the cell of this programme, negative bus-bar are directly connected by metal connecting piece with between the negative bus-bar in the adjacent cell groove of this cell, positive bus, and each positive bus, negative bus-bar and metal connecting piece are positioned at sustained height; Namely the bus-bar of the opposed polarity of neighboring unit cell adopts " adopt and be directly connected without pole ", only uses the metal connecting pieces such as lead, aluminium or copper material to connect; This makes the current path that not only can effectively shorten between bus-bar, and internal resistance reduces, and along with internal resistance reduction, caloric value also reduces, and the temperature between cell and the fluctuation of electrical collector also reduce, thus improves the cycle life of battery.In addition, because 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; By casting glue, each positive bus, negative bus-bar and metal connecting piece are connected as a single entity like this, not only can improve the connective stability between each cell, effectively reducing because shaking the fracture caused, extending the useful life using storage battery; And each positive bus, negative bus-bar and metal connecting piece are positioned at the storage tank of upper cover, this has saved the inner space of storage battery greatly, improve the effective energy space of internal storage battery, be conducive to the large current density power improving 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 storage battery capping, namely after upper cap seal hides battery container upper port, and carry out after 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 solidification in storage tank, more precisely, after the casting glue solidification in positive and negative end pole holding tank; By at least part of projection removing in terminal rubber groove, and the top of anode post terminal guiding and negative terminal post terminal guiding is made to expose in terminal rubber groove;
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 positive terminal and the welding position of anode post terminal guiding and the welding position embedding of negative terminal and negative terminal post terminal guiding.
Mounting structure and the installation method of the mounting structure of the battery positive and negative electrode terminal of this programme and installation method and current accumulator positive, negative terminal are completely different;
Due to the casting glue solidification in positive and negative end pole holding tank, positive and negative end pole holding tank is filled by casting glue completely, thus now by after at least part of projection removing in terminal rubber groove, the bottom of terminal rubber groove also can not communicate (by casting glue shutoff) with the cell groove of battery container inside; Thus directly directly can weld on positive and negative end post terminal guiding by positive and negative electrode terminal, and directly in two-terminal glue groove, inject casting glue; And do not need to need in the mounting structure as the positive and negative electrode terminal in existing storage battery to 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, avoid terminal rubber groove to communicate with the cell groove of battery container inside; Thus the mounting structure of the battery positive and negative electrode terminal of this programme not only can simplify the installation procedure of the positive and negative electrode terminal of storage battery; And can drop onto in the battery case of storage battery by the casting glue effectively solved in terminal rubber groove, affect the problem that storage battery normally uses.
Embodiment 2, all the other structures of the present embodiment are with reference to embodiment 1, and its difference is:
The thickness of every sheet positive plate is greater than the thickness of every sheet 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 sheet positive plate 1 and every sheet negative plate 2 is more than or equal to 0.59 and is less than or equal to 0.74, and the ratio of the sectional area of the negative electrode lug on the sectional area of the anode ear on the every sheet positive plate in the present embodiment and every sheet negative plate is 0.59 or 0.62 or 0.64 or 0.68 or 0.7 or 0.72 or 0.74.The ratio of the sectional area sum of the negative electrode lug on the sectional area sum of the anode ear on each positive plate and each negative plate is more than or equal to 0.62 and is less than or equal to 0.7.The ratio of the sectional area sum of the negative electrode lug on the sectional area sum of the anode ear on each positive plate in the present embodiment and each negative plate is 0.62 or 0.63 or 0.68 or 0.7.
In storage battery field, for known in 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 and resistance proportional; But the present invention breaks this convention, but achieve unexpected effect.In the state of the art (when 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 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 of the anode ear on every sheet positive plate is suitably diminished relative to the sectional area of the negative electrode lug on every sheet negative plate, thus reduces electrical collector, high rate discharging time avoid the overdischarge of positive electrode active material, thus when electricity is lower, do not need the too high magnitude of current, prevent positive electrode active material layer from destroying thus, thus extend the cycle life of lead acid accumulator; But the sectional area of anode ear can not be made to reduce 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, thus make power output also reduce, cycle life reduces.
Embodiment 3: present embodiments provide a kind of electric motor car, this electric motor car comprises a kind of lead acid accumulator described in any one embodiment of embodiment 1-2.
Claims (9)
1. a lead acid accumulator, comprise the battery container (3) of upper end open, envelope hides the upper cover (10) of battery container upper port and some evenly distributed cells be distributed in battery container, each cell comprises the cell groove (31) be arranged in battery container and the pole group (4) be arranged in cell groove respectively, described pole group to be alternately arranged across dividing plate by some positive plates (1) and some negative plates (2) and to form, anode ear on each positive plate of same pole group is connected by positive bus (41a), negative electrode lug on each negative plate of same pole group is connected by negative bus-bar (41b), it is characterized in that, the positive bus of described cell, negative bus-bar with the negative bus-bar in the adjacent cell groove of this cell, directly be connected by metal connecting piece (43) between positive bus, described upper cover lower surface is provided with some and each positive bus, negative bus-bar and the corresponding storage tank (16) of metal connecting piece, each positive bus, negative bus-bar and metal connecting piece are contained in corresponding storage tank, in described storage tank, embedding has casting glue, and described casting glue is by each positive bus, negative bus-bar and metal connecting piece are potted in storage tank.
2. a kind of lead acid accumulator according to claim 1, is characterized in that, positive bus, negative bus-bar and metal connecting piece are one-body molded.
3. a kind of lead acid accumulator according to claim 2, is characterized in that, each positive bus, negative bus-bar and metal connecting piece are positioned at sustained height.
4. a kind of lead acid accumulator according to claim 1,2 or 3, it is characterized in that, this lead acid accumulator has an anode post terminal guiding (42a) and a negative terminal post terminal guiding (42b), described anode post terminal guiding is connected as a single entity with the positive bus of the positive terminal forming 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 forming lead acid accumulator; Be provided with anode pole holding tank (17) for holding anode post terminal guiding in described storage tank and hold the negative terminal pole holding tank of negative terminal post terminal guiding; Described anode post terminal guiding, described negative terminal post terminal guiding are potted in described storage tank by described casting glue.
5. according to a kind of lead acid accumulator according to claim 4, it is characterized in that, 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).
6. according to a kind of lead acid accumulator according to claim 5, it is characterized in that, described anode pole holding tank up extends and in corresponding terminal rubber groove, forms the pole containing groove (18) of protruding (12a) with the bottom surface of negative terminal pole holding tank is respectively equipped with, and the bottom surface of pole containing groove is positioned at the top of upper cover upper surface; Described anode post terminal guiding and the top of negative terminal post terminal guiding are positioned at corresponding pole containing groove, and the top of anode post terminal guiding and negative terminal post terminal guiding is positioned at the top of upper cover upper surface.
7. according to a kind of lead acid accumulator according to claim 6, it is characterized in that, this lead acid accumulator also has a positive terminal (11a) and a negative terminal (11b); Described pole containing groove forms opening portion, the top of described anode post terminal guiding and negative terminal post terminal guiding is exposed in terminal rubber groove, described positive terminal is connected with the anode post terminal guiding exposed in terminal rubber groove, and described negative terminal is connected with the negative terminal post terminal guiding exposed in terminal rubber groove.
8. according to a kind of lead acid accumulator according to claim 7, it is characterized in that, the opening portion of described pole containing groove is formed after described casting glue seals described anode post terminal guiding and negative terminal post terminal guiding.
9. an electric motor car, is characterized in that: comprise claim 1-8 any one described in a kind of lead acid accumulator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410184534.4A CN104064718B (en) | 2013-08-16 | 2014-04-30 | A kind of lead-acid accumulator and apply the electric motor car of this accumulator |
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| CN201410184534.4A Division CN104064718B (en) | 2013-08-16 | 2014-04-30 | A kind of lead-acid accumulator and apply the electric motor car of this accumulator |
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| CN105024036A true CN105024036A (en) | 2015-11-04 |
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| CN201510110285.9A Pending CN105024036A (en) | 2014-04-30 | 2014-04-30 | Lead-acid storage battery and electric car using such lead-acid storage battery |
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Application publication date: 20151104 |