CN102751542B - Lithium ion battery pack and lithium ion battery pack combination - Google Patents
Lithium ion battery pack and lithium ion battery pack combination Download PDFInfo
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- CN102751542B CN102751542B CN201210251062.0A CN201210251062A CN102751542B CN 102751542 B CN102751542 B CN 102751542B CN 201210251062 A CN201210251062 A CN 201210251062A CN 102751542 B CN102751542 B CN 102751542B
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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
Abstract
The invention relates to the field of lithium batteries and discloses a lithium ion battery pack and a lithium ion battery pack combination. The lithium ion battery pack comprises a battery management system circuit board, a fixing plastic part, an anode terminal, a cathode terminal, an upper cover, a plurality of lithium ion battery modules and a plurality of conductive connecting plates, wherein each lithium ion battery module comprises a frame wrapping the lithium ion battery module, an anode conductive terminal, a cathode conductive terminal and a plurality of single batteries, all the lithium ion battery modules are stacked mutually on a stacking surface to form a stacked whole, the fixing plastic part is fixed above the stacked whole, the battery management system circuit board is fixed on the top of the fixing plastic part, the upper cover fixedly covers the top of the battery management system circuit board, and the anode terminal and the cathode terminal are fixed on the top of the upper cover to be respectively electrically connected with the battery management system circuit board.
Description
Technical field
The present invention relates to lithium ion battery, particularly a kind of lithium ion battery group and the combination of lithium ion battery group.
Background technology
Along with highlighting of energy problem, lithium ion battery is due to its environmental protection, and its application is widely used in the field such as mobile device, portable communication device.At present, power ion battery more becomes the trend that progressively replaces lead acid accumulator at present, further expands in high magnification, jumbo fields such as electric bicycle battery-operated motor cycle, stand-by power supply, mobile base stations.
Summary of the invention
The embodiment of the present invention the first object is to provide: a kind of lithium ion battery group, electrical connection and the assembly of this battery pack are flexible, are conducive to improve process standardization and improve process efficiency.
The embodiment of the present invention the second object is to provide: a kind of lithium ion battery group combination, in this battery combination, electrical connection and the assembly of each module are flexible, are conducive to improve process standardization and improve process efficiency.
A kind of lithium ion battery group provided by the invention, comprising: battery management system circuit board, fixed plastics part, positive terminal, negative terminals, upper cover, a plurality of lithium ionic cell module, plural conductive brace;
Each described lithium ionic cell module comprises: be wrapped in the first facade of lithium ionic cell module described in this and the framework of the second facade and bottom surface outer surface, anodal conducting terminal, negative pole conducting terminal, a plurality of cell,
Wherein, the positive pole of each described cell is welded on the brace of described anodal conducting terminal lower end jointly, the negative pole of each described cell is welded on the brace of negative pole conducting terminal lower end jointly, is respectively arranged with a draw-in groove on the top of described anodal conducting terminal, negative pole conducting terminal
Wherein, the bottom surface of described lithium ionic cell module is and described positive pole, end face that negative pole place end face is relative that described the first facade, the second facade are respectively the end face being made up of the thickness edge of each cell and length edge;
All described lithium ionic cell modules are in the stacked entirety of the mutual stacked formation one of lamination surface, and described lamination surface is the end face that each cell length edge and widthwise edges form;
Described fixed plastics part is fixed on the top of described stacked entirety, is provided with plural exhausting hole at the top of described fixed plastics part, and the described through hole of every row is made up of the first through hole, the second through hole respectively,
The each described anodal conducting terminal, the negative pole conducting terminal that are fixed on each described lithium ionic cell module run through respectively each described the first through hole, the second through hole, stretch out respectively from described the first through hole, the second through hole;
Bottom surface at each described conductive connecting piece is uprightly extended with respectively anodal conducting plug, negative pole conducting plug,
Wherein, the described anodal conducting plug of arbitrary described conductive connecting piece be inserted in this anodal conducting plug below one described in the described anodal draw-in groove at anodal conducting terminal top at lithium ionic cell module top, described negative pole conducting plug be inserted in this negative pole conducting plug below and the described negative pole draw-in groove at the described lithium ionic cell module that is connected with described anodal conducting plug is adjacent described in another negative pole conducting terminal top of lithium ionic cell module in;
Described battery management system circuit board is fixed on the top of described fixed plastics part, being provided with plural inserted sheet in the bottom surface of the battery management system circuit board of described fixed plastics part arranges, described in each, inserted sheet row is made up of anodal inserted sheet, negative pole inserted sheet respectively, wherein each described anodal inserted sheet, negative pole inserted sheet respectively with described battery management system in sampling circuit electric connection
Wherein, arbitrary described inserted sheet row's described anodal inserted sheet be inserted in this described anodal inserted sheet below one described in the described anodal draw-in groove at anodal conducting terminal top at lithium ionic cell module top, described in adjacent another of lithium ionic cell module that the described anodal inserted sheet that described negative pole inserted sheet is inserted in negative pole inserted sheet below described in this, arrange with this inserted sheet is connected in the described negative pole draw-in groove at the negative pole conducting terminal top of lithium ionic cell module;
Described upper cover fixedly covers the top of described battery management system circuit board, as described positive terminal of these described dynamical lithium-ion battery packs both positive and negative polarity input and output, the top that negative terminals is fixed on described upper cover, be electrically connected with described battery management system circuit board respectively.
Alternatively, alternatively, between described stacked entirety and fixed plastics part, be also fixed with insulating support,
On each described framework, the end face that is wrapped in the straight frame outside the first facade and second facade of described lithium ionic cell module is also respectively arranged with a column,
On described insulating support, be provided with plural number and arrange groove, column described in two of frame roof described in often arranging the anodal conducting terminal that is penetrated with respectively lithium ionic cell module described in one below this fluting in groove, negative pole conducting terminal and, the column spacing both ends at the described fluting of every row respectively described in two.
Alternatively, described insulating support is made up of the first insulating support mutually docking, the second insulator bracket;
On described the first insulator bracket, the second insulator bracket, be respectively arranged with plural number row fluting,
In the time of described the first insulating support, the second insulator bracket docking, the described son fluting of each row on described the first insulating support, the second insulator bracket is docked and connected mutually with the described son fluting of each row on described the second insulator bracket, and what form respectively described insulating support respectively arranges groove.
Alternatively, described insulating support is connected by screw or beats glue connected mode with described plastic fixtures and is fixedly connected with.
Alternatively, on each described framework, be wrapped on the first upright frame relative on the straight frame outside the first facade and second facade of described lithium ionic cell module, the second upright frame and be respectively arranged with at least one pair of: the screens pair being formed by fixture block and draw-in groove,
Described fixture block is positioned at the outside of the described first upright frame, and described draw-in groove is positioned at the outside of the described second upright frame, and described fixture block, draw-in groove position level are opposing, and described fixture block is outwards outstanding, and described draw-in groove is inwardly recessed;
When all described lithium ionic cell modules are in the mutual stacked formation one of lamination surface stacked when entirety, the described fixture block of the framework outside arbitrary lithium ionic cell module is limited in the draw-in groove of framework described in another adjacent with this described framework.
Alternatively, on each described framework, be provided with two pairs of described screens pair, lay respectively at upper end and the lower end of two upright frames of framework described in this.
Alternatively, two cell walls of the cell body of described anodal draw-in groove and/or described negative pole draw-in groove are respectively: along the curved surface of outside sweep in cell body, and the mutual mirror image symmetry of cell wall described in two,
Be wider than the width at least one place at draw-in groove middle part at the width of the opening part of described cell body.
Alternatively, two cell walls of described cell body are not connected in the bottom of described cell body.
Alternatively, be also coated with respectively a heating panel in described stacked parallel with described lamination surface two relative outsides on the whole.
Alternatively, also comprise bandage, heating panel is all bundled in described bandage described in described stacked entirety and two.
Alternatively, described bandage is two, is bundled in respectively middle part and the bottom of heating panel described in described stacked entirety and two.
Alternatively, described upper cover fixedly covers the top of described battery management system circuit board, specifically:
Described upper cover covers the top of described battery management system circuit board, and is fixedly connected with described fixed plastics part.
Alternatively, also comprise two insulated enclosure circles,
Each described insulated enclosure circle is enclosed within respectively on described positive terminal, negative terminals, is positioned on described and covers.
Alternatively, described framework is metal framework.
Alternatively, described framework is Insulating frame.
A kind of lithium ion battery group combination that the embodiment of the present invention provides, comprises a plurality of above-mentioned arbitrary described lithium ion battery groups, and each described lithium ion battery group is in parallel or be composed in series by a plurality of above-mentioned arbitrary described lithium ion battery groups.
Therefore, the technical scheme of the application embodiment of the present invention, positive pole/the negative pole of multiple cells is welded to respectively on anodal conducting terminal/negative pole conducting terminal, thereby form a lithium ionic cell module circuit being formed in parallel by multiple cells, and by comprising of framework each cell being arranged to a modular entirety from structure, then multiple lithium ion single batteries is stacked, at the top frame cover fixed plastics part of stacked entirety, by the via matrix on this fixed plastics part (being formed by plural exhausting hole), make anodal conducting terminal/negative pole conducting terminal matrix (being formed by anodal conducting terminal and negative pole conducting terminal) of stacked integral head run through and stretch out respectively, make on the one hand fixed plastics part and stacked integrated connection, and make can to realize being connected in series between multiple lithium ionic cell modules by the upper multiple N of insertion of the via matrix on fixed plastics part (2*N through hole) conductive connecting piece 108.And by inserting anodal inserted sheet/negative pole inserted sheet of battery management system circuit board bottom, can realize the employing of the signal of telecommunication employing of each lithium ionic cell module 101 and the busbar voltage/current signal of integral power battery, realize incoming/outgoing management control to offer battery management system.
Therefore, adopt the structure of the present embodiment, only insert the connection in series-parallel electrical connection that can realize cell by machinery welding or the card of each parts, and do not need complicated wire bonds to connect, therefore adopt the present embodiment technical scheme, make the manufacturing process standardization more of lithium ion battery group, technique is easy to realize, control, be conducive to realize process standardization, assembling product structural style and dimensions flexibility, reduce production costs.
The present embodiment technical scheme in actual applications, can carry out series/parallel combination by the lithium ion battery group of multiple said structures, obtains being flexibly applicable to the lithium ion battery group combination of current application: effectively freedom be unified into the combination of high-capacity battery group; Can effectively freely be connected into the combination of high-voltage battery group.
Through the inventor's test, the lithium ion battery group (or battery combination) of the present embodiment technical scheme can effectively be replaced lead acid accumulator, is applied to electric bicycle, battery-operated motor cycle, mobile base station, stand-by power supply, electric automobile (big bus), golf cart, ups power etc.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, does not form inappropriate limitation of the present invention, in the accompanying drawings:
The assembly structure schematic diagram of the lithium ion battery group of a kind of preferred structure that Fig. 1 provides for the embodiment of the present invention 1;
Fig. 2 is that in the embodiment of the present invention 1, lithium ion battery shown in Fig. 1 is assembled the structural representation after joining;
Fig. 3 is assembly in lithium ion battery group shown in Fig. 1 in the embodiment of the present invention 1: the preferred structure schematic diagram of anodal conducting terminal, negative pole conducting terminal;
Fig. 4 is assembly in lithium ion battery group shown in Fig. 1 in the embodiment of the present invention 1: the preferred structure schematic diagram of framework;
Fig. 5 is assembly in lithium ion battery group shown in Fig. 1 in the embodiment of the present invention 1: the preferred structure schematic diagram of fixed plastics part;
Fig. 6 is assembly in lithium ion battery group shown in Fig. 1 in the embodiment of the present invention 1: the preferred structure schematic diagram of conductive connecting piece;
Fig. 7 is assembly in lithium ion battery group shown in Fig. 1 in the embodiment of the present invention 1: the preferred structure schematic diagram of battery management system circuit board;
Fig. 8 is assembly in lithium ion battery group shown in Fig. 1 in the embodiment of the present invention 1: the preferred structure schematic diagram of upper cover;
Fig. 9 is assembly in lithium ion battery group shown in Fig. 1 in the embodiment of the present invention 1: the preferred structure schematic diagram of positive terminal/negative terminals;
Figure 10 is assembly in lithium ion battery group shown in the embodiment of the present invention 1 Fig. 1: the preferred structure schematic diagram of insulating support structure;
Figure 11 is the assembly of lithium ion battery group shown in Figure 10 in the embodiment of the present invention 1: cooling plate structure schematic diagram.
Reference numeral:
Lithium ionic cell module: 101;
Anodal conducting terminal: 1031; Negative pole conducting terminal: 1032; Brace: 1033; Draw-in groove 1034; Cell wall: 1035, cell wall: 1036;
Framework: 102; The first upright frame 1021; The second upright frame 1022; Underframe: 1023; Fixture block: 1024; Draw-in groove: 1025; Column: 1026;
Fixed plastics part: 105; The first through hole: 1051; The second through hole: 1052; Screw: 1053;
Conductive connecting piece: 108; Anodal conducting plug: 1081; Negative pole conducting plug: 1082; Screw 1083;
Insulating support: 109; The first insulating support: 1091; The second insulator bracket: 1092; Son fluting: 1093;
Heating panel: 1010; Banded recess: 1013;
Bandage: 1011; Insulated enclosure circle: 1012;
Battery management system circuit board: 104; Anodal inserted sheet: 1041; Negative pole inserted sheet: 1042;
Positive terminal: 1061; Negative terminals: 1062; Bolt: 901;
Upper cover: 107; Screw: 1071;
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment 1:
Shown in Fig. 1,2, a kind of lithium ion battery group that the present embodiment provides mainly comprises: battery management system circuit board 104, fixed plastics part 105, positive terminal 1061, negative terminals 1062, upper cover 107, a plurality of lithium ionic cell module 101, plural conductive brace 108.
Annexation between concrete structure and the parts of each parts is referring to following description:
Each lithium ionic cell module 101 comprises: framework 102, anodal conducting terminal 1031, negative pole conducting terminal 1032, a plurality of cell.
These cells using its length edge and widthwise edges form face as lamination surface, mutually stacked together, make positive pole (can the be anode ear) bending of all cells stacked together, these positive poles are welded to jointly on the brace 1033 of a conducting terminal (following anodal conducting terminal 1031) lower end;
In like manner, make negative pole (can the be negative electrode lug) bending of all cells stacked together, these negative poles are welded to jointly on the brace 1033 of another conducting terminal (following negative pole conducting terminal 1032) lower end.
Wherein, the top of each anodal conducting terminal 1031, each negative pole conducting terminal 1032 is also respectively arranged with a draw-in groove 1034.
As a kind of preferred implementation of the present embodiment, can be, but not limited to adopt the structure shown in Fig. 3, this positive pole conducting terminal 1031/ negative pole conducting terminal 1032 is made up of integrated upright brace 1033 and the square frame portion structure in bottom that be positioned at.Wherein the width of brace 1033 equals or is slightly wider than the width of positive pole, negative pole, so that welding operation.The cross section of this frame portion can be, but not limited to be " recessed " font or similar " recessed " character form structure.
In the time of design, two cell walls 1035,1036 of Shi Gaikuangbu center formation draw-in groove 1034 are respectively along the curved surface of outside sweep in cell body, the mutual mirror image symmetry of two cell walls 1035,1036, and make draw-in groove 1034 open top portion width slightly be wider than the width (particular location can be arbitrarily) at least one place at draw-in groove 1034 middle parts, can make this draw-in groove 1034 be easy to be inserted into.Adopt this design, in the time inserting inserted sheet, only need to slight firmly thickness can be greater than to the plug-in unit insertion that draw-in groove 1034 the narrowest place width equal or be slightly wider than its draw-in groove 1034 opening portion width, and because at least one place of 1034 liang of cell walls of draw-in groove 1035,1036 is subject to producing to the elastic force in cell body compared with large outside compressional deformation, therefore while inserting plug-in unit again, 1034 liang of cell walls of draw-in groove 1035,1036 can be firmly by spacing interior the plug-in unit inserting, and make it be not easy to extract or come off.
Can also two edges be positioned at draw-in groove 1034 bottom parts in when design and be connected, can further strengthen the deformation DE of 1034 liang of cell walls of draw-in groove 1035,1036, further firmly by spacing the plug-in unit of insertion, and make it be not easy to extract or come off.
Above-mentioned anodal conducting terminal 1031/ negative pole conducting terminal 1032 can be, but not limited to the hardware terminal for being made up of copper, aluminium or other metals or alloy.
Shown in Figure 4, the framework 102 of the present embodiment structure that takes the shape of the letter U, be wrapped in outside first facade and the second facade and bottom surface of this lithium ionic cell module 101, thereby by by the stacked lithium ionic cell module forming 101 of multiple cells from bottom and side encase, become a module whole.
This framework 102 can be that light plastic frame 102 can be also metal (such as aluminium, copper, iron or other five metals) in the present embodiment, in the time that it is metal framework 102, is conducive to further improve the heat dispersion of the present embodiment lithium ion battery group.
Wherein, the bottom surface of lithium ionic cell module 101 is: with the end face anodal, negative pole place end face is relative, the first facade, second facade of lithium ionic cell module 101 are respectively: the end face being made up of thickness edge and the length edge of each cell.
In the present embodiment, the frame that wraps in lithium ionic cell module 101 first facades on framework 102 is designated as to the first upright frame 1021, the second upright frame 1022, the frame that wraps in lithium ionic cell module 101 bottom surfaces on framework 102 is designated as to underframe 1023.
Through above-mentioned anodal conducting terminal 1031/ negative pole conducting terminal 1032 and multiple cell welding, these cell parallel connections are become to a small-sized lithium ionic cell module 101, and by the outsourcing design of framework 102, these cells are formed a whole from structure, jointly form the lithium ionic cell module 101 of the present embodiment.
After obtaining multiple lithium ionic cell modules 101, by multiple lithium ionic cell modules 101 take each cell length edge and widthwise edges form face as lamination surface, the stacked entirety of mutual stacked formation one.
As seen from Figure 1, form on the top of this stacked entirety the matrix being formed by anodal conducting terminal 1031 and negative pole conducting terminal 1032.
Then, fix a fixed plastics part 105 at the end face of stacked entirety.
Shown in Figure 5, be provided with plural exhausting hole at the top of fixed plastics part 105, every exhausting hole is made up of the first through hole 1051, the second through hole 1052 respectively.
Shown in Figure 1, from top to bottom fixed plastics part 105 is enclosed within to the top of lamination entirety, make in lamination entirety anodal conducting terminal 1031, the negative pole conducting terminal 1032 on each lithium ionic cell module 101 corresponding with an exhausting hole on fixed plastics part 105 respectively, run through respectively the first through hole 1051, the second through hole 1052 passes.Now, by the design that runs through of the via matrix on anodal conducting terminal 1031, negative pole conducting terminal 1032 matrixes and the fixed plastics part 105 of lamination entirety, lamination entirety fixed plastics part 105 is interconnected and be integrated.
The structure that is inserted in each conductive connecting piece 108 at fixed plastics part 105 tops can be, but not limited to shown in Figure 6, is uprightly extended with respectively anodal conducting plug 1081, negative pole conducting plug 1082 in the bottom surface of each conductive connecting piece 108.On fixed plastics part 105, also arrange by multiple screws 1053, can run through screw 1053,1083 and conductive connecting piece 108 and fixed plastics part 105 are connected by these screws.
Wherein the thickness of anodal conducting plug 1081/ negative pole conducting plug 1082 preferably: be greater than the narrowest width of the draw-in groove 1034 of the anodal conducting terminal 1031 of anodal conducting terminal 1031/, equal or be slightly wider than the A/F of draw-in groove 1034.
In the time that arbitrary conductive connecting piece 108 is plugged to fixed plastics part 105 top, specifically make:
The lithium ionic cell module 101(that the anodal conducting plug 1081 of this conductive connecting piece 108 is inserted in these anodal conducting plug 1081 belows is designated as lithium ionic cell module 1011) in the anodal draw-in groove 1034 at anodal conducting terminal 1031 tops at top;
The negative pole conducting plug 1082 of this conductive connecting piece 108 is inserted in this negative pole conducting plug 1082 belows and is designated as lithium ionic cell module 1012 with stacked adjacent another lithium ionic cell module 101(of lithium ionic cell module 1011) the negative pole draw-in groove 1034 at negative pole conducting terminal 1032 tops in.Respectively adjacent between two lithium ionic cell module 101 is together in series by each conductive connecting piece 108, by N conductive connecting piece 108, N lithium ionic cell module 101 is composed in series to the lithium ion battery group entirety of a larger capacity, to export larger electric current.After all conductive connecting pieces 108 are plugged, these conductive connecting piece 108 parallel arrangements are at the top of fixed plastics part 105.
In view of each conductive connecting piece 108 is connected with two lithium ionic cell modules 101 respectively, in order to save Material Cost and to guarantee the distance between each conductive connecting piece 108, can be, but not limited in the present embodiment conductive connecting piece 108 whole installations to become broken line shape.
Shown in Figure 7, the bottom surface that is fixed on the battery management system circuit board 104 at fixed plastics part 105 tops in the present embodiment is provided with plural inserted sheet row, and each inserted sheet row is made up of anodal inserted sheet 1041 and negative pole inserted sheet 1042 respectively.The row's conducting terminal that every inserted sheet is arranged be made up of anodal conducting terminal 1031 and negative pole conducting terminal 1032 with lamination integral head is respectively corresponding.
Shown in Figure 1, in the time of assembling battery management system circuit board 104, by the anodal inserted sheet of its bottom 1041/ negative pole inserted sheet 1042 respectively in the draw-in groove 1034 at the anodal conducting terminal of lamination integral head 1031/ negative pole conducting terminal 1032 tops, now at each anodal conducting terminal 1031(or conducting terminal top) interior anodal inserted sheet 1041(or the negative pole inserted sheet 1042 that is jointly inserted with battery management system circuit board 104 bottoms of draw-in groove 1034) and anodal conducting plug 1081(or a negative pole conducting plug 1082 of conductive connecting piece 108 bottom surfaces).
The every anodal inserted sheet 1041 of battery management system circuit board 104 bottoms, negative pole inserted sheet 1042 respectively with battery management system in positive pole, the negative electricity electric connection respectively of sampling circuit.Insert with the card of anodal conducting terminal 1031/ negative pole conducting terminal 1032 by the anodal inserted sheet 1041/ negative pole inserted sheet 1042 in these battery management system circuit board 104 bottoms, can be by anodal inserted sheet 1041/ negative pole inserted sheet 1042 the busbar voltage bus current of the signal of telecommunication (voltage/current) to each lithium ionic cell module 101 in lamination entirety and the lamination entirety that is composed in series by lithium ionic cell module 101 sample, carry out battery management control to input to battery management system for it.
In the present embodiment, upper cover 107 structures are shown in Figure 8, and this upper cover 107 is made up of insulating material, covers the top of battery management system circuit board 104, thereby are packaged as a whole from top by whole lamination body lithium ion battery.
Shown in Figure 1, in the time of upper cover 107 fixing, can be, but not limited to that five metals material is made to its top and have positive terminal 1061 of bolt 901, negative terminals 1062, the Five-gold-sheet of bolt 901 bottoms is fixed (can be, but not limited to be connected with screw) on fixed plastics part 105, then on the upper cover 107 above bolt 901, arrange and positive terminal 1061, negative terminals 1062 respectively just right position arranges a screw 1071, positive terminal 1061 making, negative terminals runs through respectively and screws in the screw 1071 of upper cover 107 and be fixed on fixed plastics part 105, by positive terminal 1061, the installation of negative terminals 1062 is by upper cover 107, fixed plastics part 105 and battery management system circuit board 104 are fixed together.
Shown in Figure 9 as the structure of positive terminal 1061 of this dynamical lithium-ion battery packs both positive and negative polarity input and output, negative terminals 1062 in the present embodiment, positive terminal 1061, negative terminals 1062 are separately fixed at the top of upper cover 107, are connected respectively with positive pole, the negative electricity of the bus of battery management system circuit board 104.
In order further to strengthen the steadiness of positive terminal 1061,1062 connections of negative terminals, can also on positive terminal 1061, negative terminals 1062, overlap respectively insulated enclosure circle 1012, each insulated enclosure circle 1012 is enclosed within respectively between positive terminal 1061/ negative terminals son 1062 and upper cover 107.
Therefore, adopt the present embodiment technical scheme, positive pole/the negative pole of multiple cells is welded to respectively on anodal conducting terminal 1031/ negative pole conducting terminal 1032, thereby form the lithium ionic cell module being formed in parallel by multiple cells 101 circuit, and by comprising of framework 102 each cell being arranged to a modular entirety from structure, then multiple lithium ion single batteries is stacked, at the top frame cover fixed plastics part 105 of stacked entirety, by the via matrix on this fixed plastics part 105 (being formed by plural exhausting hole), make anodal conducting terminal 1031/ negative pole conducting terminal 1032 matrixes (being formed by anodal conducting terminal 1031 and negative pole conducting terminal 1032) of stacked integral head run through and stretch out respectively, make on the one hand fixed plastics part 105 and stacked integrated connection, and make can to realize being connected in series between multiple lithium ionic cell modules 101 by the upper multiple N of insertion of the via matrix on fixed plastics part 105 (2*N through hole) conductive connecting piece 108.And by inserting the anodal inserted sheet 1041/ negative pole inserted sheet 1042 of battery management system circuit board 104 bottoms, can realize the employing of the signal of telecommunication employing of each lithium ionic cell module 101 and the busbar voltage/current signal of integral power battery, realize incoming/outgoing management control to offer battery management system.
Therefore, adopt the structure of the present embodiment, only insert the connection in series-parallel electrical connection that can realize cell by machinery welding or the card of each parts, and do not need complicated wire bonds to connect, therefore adopt the present embodiment technical scheme, make the manufacturing process standardization more of lithium ion battery group, technique is easy to realize, control, be conducive to realize process standardization, assembling product structural style and dimensions flexibility, reduce production costs.
The present embodiment technical scheme in actual applications, can carry out series/parallel combination by the lithium ion battery group of multiple said structures, obtains being flexibly applicable to the lithium ion battery group combination of current application: effectively freedom be unified into the combination of high-capacity battery group; Can effectively freely be connected into the combination of high-voltage battery group.
Through the inventor's test, the lithium ion battery group (or battery combination) of the present embodiment technical scheme can effectively be replaced lead acid accumulator, is applied to electric bicycle, battery-operated motor cycle, mobile base station, stand-by power supply, electric automobile (big bus), golf cart, ups power etc.
In order further to strengthen the structure of the present embodiment lamination entirety, carry out following design (referring to Fig. 4) on can also the framework 102 outside each lithium ionic cell module 101:
On each framework 102, be also respectively arranged with a column 1026 at the end face that is wrapped in the straight frame outside the first facade of lithium ionic cell module 101, the second facade.
Shown in Figure 10, in the present embodiment, can also between stacked entirety and fixed plastics part 105, increase an insulating support 109(can be, but not limited to as plastic stent), on this insulating support 109, being provided with plural number arranges groove and (establishes N row, the number of fluting is consistent with the number of lithium ionic cell module 101), at two columns 1026 that often arrange framework 102 tops on anodal conducting terminal 1031, negative pole conducting terminal 1032 and this lithium ionic cell module 101 that is penetrated with respectively the lithium ionic cell module 101 below this fluting in groove.
The design that increases this insulating support 109 can be avoided by the interval of this fluting the mutual short circuit of electrode of each lithium ionic cell module 101 on the one hand, further can will guarantee simply the stacked regularity of each stacked lithium ionic cell module 101 in stacked entirety with the location of fluting end by column 1026 on the other hand.Standardization and the accuracy of further guaranteeing technology controlling and process, be conducive to improve process efficiency.
Further, the insulating support 109 of the present embodiment can be, but not limited to be made up of the first insulating support 1091109, the second insulator bracket 1092, is respectively arranged with plural number row fluting 1093 on the first insulator bracket, the second insulator bracket 1092.
Shown in Figure 10, in the time installing, insert respectively the first insulating support 1091109, the second insulator bracket 1092 from the front and back ends of stacked entirety, the column 1026(that makes to be positioned at framework 102 front ends offsets with fluting front end), anodal conducting terminal 1031(or negative pole conducting terminal 1032) be positioned at the son fluting 1093 of the first insulating support 1091109; The column 1026(that is positioned at framework 102 front ends offsets with fluting rear end), negative pole conducting terminal 1032(or anodal conducting terminal 1031) be positioned at the son fluting 1093 of the first insulating support 1091109.The every row fluting 1093 of the first insulating support 1091109, the second insulator bracket 1092 is docked and connected at the middle part of stacked entirety, and the groove that often arranges being interconnected just forms one of insulating support 109 and arranges groove.
Adopt this design to further facilitate standardization and the accuracy of mounting process, be convenient to process implementing.
Shown in Figure 10, double-screw bolt and the screw 1053 of mutual coupling can also be set respectively in the front and back end portion of insulating support 109, fixed plastics part, by screw or the mode of playing glue, insulating support 109 and plastic fixtures are linked together firmly.
Shown in Fig. 1,4, in the present embodiment can also but be not limited to be respectively provided to less on the first upright frame 1021 of each framework 102 and the second upright frame 1022 a pair of: screens pair, this screens forms fixture block 1024 and draw-in groove 1025 by the two opposite outer that is co-located on a upstanding edge frame.Right fixture block 1024, the draw-in groove 1025 position levels of every screens support or oppose, and fixture block 1024 is outwards outstanding, and draw-in groove 1025 is inwardly recessed.Multiple lithium ionic cell modules 101 are stacked is combined into stacked when entirety carrying out like this, can pass through the first upright frame 1021 of adjacent two frameworks 102, the fixture block 1024 of the second upright frame 1022 is spacing with draw-in groove 1025: the fixture block 1024 on the arbitrary upright frame outside arbitrary lithium ionic cell module 101 is limited in the draw-in groove 1025 of upright frame of another framework 102 adjacent with this framework 102, by this easy fixture block 1024 and draw-in groove 1025 assembly manipulations, can fitly obtain neat stacked entirety, and can avoid the displacement between each lithium ionic cell module 101.
Shown in Fig. 1,4, on the each upright frame of each framework 102, two pairs of screens pair can be set respectively, the wherein a pair of top near framework 102, another is to the bottom near framework 102.Adopt the screens up and down of two pairs to be provided with and be beneficial to the lamination operation further facilitating between each stacked lithium ionic cell module 101, guarantee the regularity of stacked level, height.
Shown in Figure 10, can also but be not limited to two sides (these two sides are the face parallel with lamination surface) in the outermost end of the stacked entirety of the present embodiment be close to respectively cover a heating panel 1010(referring to shown in Figure 11,14) heating panel 1010 can be various metallic plates, such as aluminium sheet or copper coin or other alloy sheets.
Increase being coated with of this heating panel 1010 and be beneficial to the heat dispersion that strengthens the present embodiment lithium ion battery group.
Shown in Figure 10, can also but be not limited to the periphery binding bandage 1011 in the stacked entirety of the present embodiment, be all bundled in firmly bandage 1011 thereby make stacked entirety and two be positioned at the stacked heating panel 1010 of carrying two lateral surfaces.Adopt the docile intensity that is conveniently conducive to guarantee heating panel 1010 and stacked integral surface that relates to of this tie, further guarantee on the other hand the stabilized structure of lamination entirety, be convenient to transportation and use.
The number of turns of above-mentioned tie can be two or more, is bundled in respectively stacked entirety middle part, bottom.
In the time designing, can be at least banded recess 1013 of the arranged outside of heating panel 1010, and then while carrying out tie binding, make in the banded recess 1013 of the spacing heating panel 1010 relative with two of tie, avoid tie to be shifted.
It should be noted that, set out by the present embodiment technical scheme thinking, can also be using the lithium ion battery group of structure shown in above-mentioned Fig. 1,2 as lithium ion battery pack module, and adopt technique scheme by its further stacked, connection in series-parallel combination and obtain electric current, voltage, lithium ion battery group entirety that capacity is larger.
The technical scheme above embodiment of the present invention being provided is described in detail, applied principle and the execution mode of specific case to the embodiment of the present invention herein and set forth, the explanation of above embodiment is only applicable to help to understand the principle of the embodiment of the present invention; , for one of ordinary skill in the art, according to the embodiment of the present invention, in embodiment and range of application, all will change, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (16)
1. a lithium ion battery group, is characterized in that, comprising: battery management system circuit board, fixed plastics part, positive terminal, negative terminals, upper cover, a plurality of lithium ionic cell module, plural conductive brace;
Each described lithium ionic cell module comprises: be wrapped in the first facade of lithium ionic cell module described in this and the framework of the second facade and bottom surface outer surface, anodal conducting terminal, negative pole conducting terminal, a plurality of cell,
Wherein, the positive pole of each described cell is welded on the brace of described anodal conducting terminal lower end jointly, the negative pole of each described cell is welded on the brace of negative pole conducting terminal lower end jointly, is respectively arranged with a draw-in groove on the top of described anodal conducting terminal, negative pole conducting terminal
Wherein, the bottom surface of described lithium ionic cell module is and described positive pole, end face that negative pole place end face is relative that described the first facade, the second facade are respectively the end face being made up of the thickness edge of each cell and length edge;
All described lithium ionic cell modules are in the stacked entirety of the mutual stacked formation one of lamination surface, and described lamination surface is the end face that each cell length edge and widthwise edges form;
Described fixed plastics part is fixed on the top of described stacked entirety, is provided with plural exhausting hole at the top of described fixed plastics part, and the described through hole of every row is made up of the first through hole, the second through hole respectively,
The each described anodal conducting terminal, the negative pole conducting terminal that are fixed on each described lithium ionic cell module run through respectively each described the first through hole, the second through hole, stretch out respectively from described the first through hole, the second through hole;
Bottom surface at each described conductive connecting piece is uprightly extended with respectively anodal conducting plug, negative pole conducting plug,
Wherein, the described anodal conducting plug of arbitrary described conductive connecting piece be inserted in this anodal conducting plug below one described in the described anodal draw-in groove at anodal conducting terminal top at lithium ionic cell module top, described negative pole conducting plug be inserted in this negative pole conducting plug below and the described negative pole draw-in groove at the described lithium ionic cell module that is connected with described anodal conducting plug is adjacent described in another negative pole conducting terminal top of lithium ionic cell module in;
Described battery management system circuit board is fixed on the top of described fixed plastics part, being provided with plural inserted sheet in the bottom surface of the battery management system circuit board of described fixed plastics part arranges, described in each, inserted sheet row is made up of anodal inserted sheet, negative pole inserted sheet respectively, wherein each described anodal inserted sheet, negative pole inserted sheet respectively with described battery management system in sampling circuit electric connection
Wherein, arbitrary described inserted sheet row's described anodal inserted sheet be inserted in this described anodal inserted sheet below one described in the described anodal draw-in groove at anodal conducting terminal top at lithium ionic cell module top, described in adjacent another of lithium ionic cell module that the described anodal inserted sheet that described negative pole inserted sheet is inserted in negative pole inserted sheet below described in this, arrange with this inserted sheet is connected in the described negative pole draw-in groove at the negative pole conducting terminal top of lithium ionic cell module;
Described upper cover fixedly covers the top of described battery management system circuit board, as described positive terminal of this lithium ion battery group both positive and negative polarity input and output, the top that negative terminals is fixed on described upper cover, be electrically connected with described battery management system circuit board respectively.
2. lithium ion battery group according to claim 1, is characterized in that,
Between described stacked entirety and fixed plastics part, be also fixed with insulating support,
On each described framework, the end face that is wrapped in the straight frame outside the first facade and second facade of described lithium ionic cell module is also respectively arranged with a column,
On described insulating support, be provided with plural number and arrange groove, column described in two of frame roof described in often arranging the anodal conducting terminal that is penetrated with respectively lithium ionic cell module described in one below this fluting in groove, negative pole conducting terminal and, the column spacing both ends at the described fluting of every row respectively described in two.
3. lithium ion battery group according to claim 2, is characterized in that,
Described insulating support is made up of the first insulating support mutually docking, the second insulator bracket;
On described the first insulator bracket, the second insulator bracket, be respectively arranged with plural number row fluting,
In the time of described the first insulating support, the second insulator bracket docking, the described son fluting of each row on described the first insulating support, the second insulator bracket is docked and connected mutually with the described son fluting of each row on described the second insulator bracket, and what form respectively described insulating support respectively arranges groove.
4. lithium ion battery group according to claim 2, is characterized in that,
Described insulating support is connected by screw or beats glue connected mode with described plastic fixtures and is fixedly connected with.
5. lithium ion battery group according to claim 1, is characterized in that,
On each described framework, be wrapped on the first upright frame relative on the straight frame outside the first facade and second facade of described lithium ionic cell module, the second upright frame and be provided with at least one pair of: the screens pair being formed by fixture block and draw-in groove,
Described fixture block is positioned at the outside of the described first upright frame, and described draw-in groove is positioned at the described second upright frame outside, and described fixture block, draw-in groove position level are opposing, and described fixture block is outwards outstanding, and described draw-in groove is inwardly recessed;
When all described lithium ionic cell modules are in the mutual stacked formation one of lamination surface stacked when entirety, the described fixture block of the framework outside arbitrary lithium ionic cell module is limited in the draw-in groove of framework described in another adjacent with this described framework.
6. lithium ion battery group according to claim 5, is characterized in that,
On each described framework, be provided with two pairs of described screens pair, lay respectively at upper end and the lower end of two upright frames of framework described in this.
7. according to arbitrary described lithium ion battery group of claim 1 to 6, it is characterized in that,
Two cell walls of the cell body of described anodal draw-in groove and/or described negative pole draw-in groove are respectively: along the curved surface of outside sweep in cell body, and the mutual mirror image symmetry of cell wall described in two,
Be wider than the width at least one place at draw-in groove middle part at the width of the opening part of described cell body.
8. lithium ion battery group according to claim 7, is characterized in that,
Two cell walls of described cell body are not connected in the bottom of described cell body.
9. according to arbitrary described lithium ion battery group of claim 1 to 6, it is characterized in that,
Also be coated with respectively a heating panel in described stacked parallel with described lamination surface two relative outsides on the whole.
10. lithium ion battery group according to claim 9, is characterized in that,
Also comprise bandage, heating panel is all bundled in described bandage described in described stacked entirety and two.
11. lithium ion battery groups according to claim 10, is characterized in that,
Described bandage is two, is bundled in respectively middle part and the bottom of heating panel described in described stacked entirety and two.
12. according to arbitrary described lithium ion battery group of claim 1 to 6, it is characterized in that,
Described upper cover fixedly covers the top of described battery management system circuit board, specifically:
Described upper cover covers the top of described battery management system circuit board, and is fixedly connected with described fixed plastics part.
13. according to arbitrary described lithium ion battery group of claim 1 to 6, it is characterized in that,
Also comprise two insulated enclosure circles,
Each described insulated enclosure circle is enclosed within respectively on described positive terminal, negative terminals, is positioned on described and covers.
14. according to arbitrary described lithium ion battery group of claim 1 to 6, it is characterized in that,
Described framework is metal framework.
15. according to arbitrary described lithium ion battery group of claim 1 to 6, it is characterized in that,
Described framework is Insulating frame.
16. 1 kinds of lithium ion battery group combinations, is characterized in that, comprise arbitrary described lithium ion battery group of a plurality of claims 1 to 15,
Each described lithium ion battery group is in parallel or be composed in series by the arbitrary described lithium ion battery group of a plurality of claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251062.0A CN102751542B (en) | 2012-06-17 | 2012-07-19 | Lithium ion battery pack and lithium ion battery pack combination |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210199418.0 | 2012-06-17 | ||
| CN201210199418 | 2012-06-17 | ||
| CN201210251062.0A CN102751542B (en) | 2012-06-17 | 2012-07-19 | Lithium ion battery pack and lithium ion battery pack combination |
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| CN102751542A CN102751542A (en) | 2012-10-24 |
| CN102751542B true CN102751542B (en) | 2014-06-04 |
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| CN2012203518644U Withdrawn - After Issue CN202695647U (en) | 2012-06-17 | 2012-07-19 | Lithium-ion battery pack and lithium-ion battery pack assembly |
| CN201210251062.0A Active CN102751542B (en) | 2012-06-17 | 2012-07-19 | Lithium ion battery pack and lithium ion battery pack combination |
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202695647U (en) * | 2012-06-17 | 2013-01-23 | 深圳市格瑞普电池有限公司 | Lithium-ion battery pack and lithium-ion battery pack assembly |
| JP5957651B2 (en) * | 2013-06-07 | 2016-07-27 | パナソニックＩｐマネジメント株式会社 | Assembled battery |
| US9985268B2 (en) | 2013-09-06 | 2018-05-29 | Johnson Controls Technology Company | Battery module housing and method of making the same |
| CN103501578B (en) * | 2013-09-23 | 2016-06-08 | 浙江超威创元实业有限公司 | A kind of BMS manages the circuit board structure of module |
| DE102014010067B4 (en) * | 2014-07-08 | 2021-08-05 | Audi Ag | Motor vehicle battery that can be produced with voltage protection, plug-in module for a motor vehicle battery, motor vehicle with at least one motor vehicle battery and method for producing a motor vehicle battery |
| CN105552294B (en) * | 2016-02-02 | 2019-03-01 | 北方奥钛纳米技术有限公司 | A kind of battery modules |
| US10497997B2 (en) * | 2016-03-14 | 2019-12-03 | Ford Global Technologies, Llc | Assembly and method to maintain clearance to a thermal fin within a battery assembly |
| CN105977539A (en) * | 2016-06-23 | 2016-09-28 | 苏州添蓝动力科技有限公司 | Composite structure of lithium battery pack |
| CN106169549B (en) * | 2016-09-27 | 2019-07-02 | 中航锂电（洛阳）有限公司 | A kind of battery module |
| CN109428026A (en) * | 2017-08-31 | 2019-03-05 | 宁德时代新能源科技股份有限公司 | Battery module |
| KR102198848B1 (en) * | 2017-11-16 | 2021-01-05 | 주식회사 엘지화학 | Battery Module Having Sensing Assembly and Busbar Assembly |
| KR20210012544A (en) * | 2019-07-25 | 2021-02-03 | 현대모비스 주식회사 | Battery module assemble |
| CN110400896A (en) * | 2019-08-23 | 2019-11-01 | 湖南携赢科技有限公司 | Battery core series mould set bracket, battery core series mould set and its assemble method |
| CN111525677B (en) * | 2020-04-16 | 2023-09-01 | 贵州电网有限责任公司 | UPS power supply system based on assembled battery pack |
| CN115579592B (en) * | 2022-11-10 | 2023-04-25 | 瑞浦兰钧能源股份有限公司 | Secondary battery |
| CN116190900B (en) * | 2023-04-28 | 2023-09-22 | 宁德时代新能源科技股份有限公司 | Fixed bolster, battery and consumer |
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| JP4787509B2 (en) * | 2005-01-27 | 2011-10-05 | 日本電気株式会社 | Electrical device assembly |
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| CN201590444U (en) * | 2009-11-14 | 2010-09-22 | 富港电子（东莞）有限公司 | Battery connector |
| CN202695647U (en) * | 2012-06-17 | 2013-01-23 | 深圳市格瑞普电池有限公司 | Lithium-ion battery pack and lithium-ion battery pack assembly |
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| CN202695647U (en) | 2013-01-23 |
| CN102751542A (en) | 2012-10-24 |
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