CN102751542A - 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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- CN102751542A CN102751542A CN2012102510620A CN201210251062A CN102751542A CN 102751542 A CN102751542 A CN 102751542A CN 2012102510620 A CN2012102510620 A CN 2012102510620A CN 201210251062 A CN201210251062 A CN 201210251062A CN 102751542 A CN102751542 A CN 102751542A
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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 owing to its environmental protection, and its application is widely used in fields such as mobile device, portable communication devices.At present, the 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 invention first purpose is to provide: a kind of lithium ion battery group, the electrical connection and the assembly of this battery pack are flexible, help improving process standardization and improve process efficiency.
The embodiment of the invention second purpose is to provide: a kind of lithium ion battery group combination, the electrical connection and the assembly of each module are flexible in this battery combination, help improving process standardization and improve process efficiency.
A kind of lithium ion battery group provided by the invention comprises: battery management system circuit board, fixed plastics part, positive terminal, negative terminals are sub, loam cake, a plurality of lithium ionic cell module, plural conductive brace;
Each said lithium ionic cell module comprises: be wrapped in first facade of this said lithium ionic cell module and the framework of second facade and bottom surface outer surface, anodal conducting terminal, negative pole conducting terminal, a plurality of cell,
Wherein, The positive pole of each said cell is welded on the brace of said anodal conducting terminal lower end jointly; The negative pole of each said 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 said anodal conducting terminal, negative pole conducting terminal
Wherein, the bottom surface of said lithium ionic cell module is and said positive pole, negative pole place end face opposing end faces that said first facade, second facade are respectively the end face that is made up of the thickness edge of each cell and length edge;
All said lithium ionic cell modules are in the mutual range upon range of formation one range upon range of integral body of lamination surface, and said lamination surface is the end face that each cell length edge and widthwise edges constitute;
Said fixed plastics part is fixed on the top of said range upon range of integral body, is provided with plural exhausting hole at the top of said fixed plastics part, and the said through hole of every row is made up of first through hole, second through hole respectively,
Each the said anodal conducting terminal, the negative pole conducting terminal that are fixed on each said lithium ionic cell module run through each said first through hole, second through hole respectively, stretch out from said first through hole, second through hole respectively;
Bottom surface at each said conductive connecting piece uprightly is extended with anodal conducting plug, negative pole conducting plug respectively,
Wherein, The said anodal conducting plug of arbitrary said conductive connecting piece is inserted in the said anodal draw-in groove at anodal conducting terminal top at a said lithium ionic cell module top of this anodal conducting plug below, said negative pole conducting plug be inserted in this negative pole conducting plug below and the said negative pole draw-in groove at the negative pole conducting terminal top of another said lithium ionic cell module that the said lithium ionic cell module that is connected with said anodal conducting plug is adjacent in;
Said battery management system circuit board is fixed on the top of said fixed plastics part; Be provided with plural inserted sheet row in the bottom surface of the battery management system circuit board of said fixed plastics part; Every said inserted sheet row is made up of anodal inserted sheet, negative pole inserted sheet respectively; Wherein each said anodal inserted sheet, negative pole inserted sheet respectively with said battery management system in the sampling circuit electric connection
Wherein, Arbitrary said inserted sheet row's said anodal inserted sheet is inserted in the said anodal draw-in groove at anodal conducting terminal top at a said lithium ionic cell module top of this said anodal inserted sheet below, in the said negative pole draw-in groove at the negative pole conducting terminal top of another said lithium ionic cell module that the lithium ionic cell module that said negative pole inserted sheet is inserted in this said negative pole inserted sheet below, be connected with said anodal inserted sheet that this inserted sheet is arranged is adjacent;
Said loam cake fixedly covers the top of said battery management system circuit board; Said positive terminal, the sub top that is fixed on said loam cake of negative terminals as these said power lithium-ion battery group both positive and negative polarity input and output are electrically connected with said battery management system circuit board respectively.
Alternatively, alternatively, between said range upon range of integral body and fixed plastics part, also be fixed with insulating support,
On each said framework, be wrapped in first facade of said lithium ionic cell module and the end face of the straight frame outside second facade and also be respectively arranged with a column,
Said insulating support is provided with plural number and arranges groove; At the two said columns that whenever arrange the anodal conducting terminal, negative pole conducting terminal and the said frame roof that are penetrated with the said lithium ionic cell module below this fluting in the groove respectively, spacing respectively the both ends of two said columns at the said fluting of every row.
Alternatively, said insulating support is made up of first insulating support, the second insulator support of mutual butt joint;
On the said first insulator support, the second insulator support, be respectively arranged with plural number row fluting,
When said first insulating support, the butt joint of the second insulator support; The said son fluting of each row on said first insulating support, the second insulator support is docked and connected with the said son fluting of each row on the said second insulator support each other, and what constitute said insulating support respectively respectively arranges groove.
Alternatively, said insulating support and said plastic fixtures are connected through screw or play the fixed connection of glue connected mode.
Alternatively, on each said framework, be wrapped on the two upright frames of the outer straight frame of first facade and second facade of said lithium ionic cell module and be respectively arranged with at least one pair of: screens is right,
Each fixture block is positioned at an outside of said upright frame; Said draw-in groove is positioned at another relative outside of said upright frame, and the composition that is located at another outside of this said upright frame, and said fixture block, draw-in groove position level support or oppose; Said fixture block is outwards outstanding, and said draw-in groove is inwardly recessed;
Range upon range of when whole in the mutual range upon range of formation of lamination surface one when all said lithium ionic cell modules, the said fixture block of the framework that arbitrary lithium ionic cell module is outer is limited in the draw-in groove of another said framework adjacent with this said framework.
Alternatively, it is right that each said framework is provided with two pairs of said screens, lays respectively at the upper end and the lower end of two upright frames of this said framework.
Alternatively, two cell walls of the cell body of said anodal draw-in groove and/or said negative pole draw-in groove are respectively: along the curved surface of outside sweep in the cell body, and the mutual mirror image symmetry of two said cell walls,
Be wider than the width at least one place at draw-in groove middle part at the width of the opening part of said cell body.
Alternatively, two cell walls of said cell body are not connected in the bottom of said cell body.
Alternatively, also be coated with a heating panel respectively in said range upon range of two parallel with the said lamination surface on the whole relative outsides.
Alternatively, also comprise bandage, said range upon range of integral body and two said heating panels all are bundled in the said bandage.
Alternatively, said bandage is two, is bundled in the middle part and the bottom of said range upon range of integral body and two said heating panels respectively.
Alternatively, said loam cake fixedly covers the top of said battery management system circuit board, specifically:
Said loam cake covers the top of said battery management system circuit board, and is fixedly connected with said fixed plastics part.
Alternatively, also comprise two insulated enclosure circles,
Each said insulated enclosure circle be enclosed within respectively said positive terminal, negative terminals sub on, be positioned at said encapsulation loam cake.
Alternatively, said framework is a metal framework.
Alternatively, said framework is an Insulating frame.
A kind of lithium ion battery group combination that the embodiment of the invention provides comprises a plurality of above-mentioned arbitrary described lithium ion battery groups, and each said lithium ion battery group is by a plurality of above-mentioned arbitrary described lithium ion battery groups parallel connections or be composed in series.
Therefore; Use the technical scheme of the embodiment of the invention; Positive pole/the negative pole of a plurality of cells is welded to respectively on anodal conducting terminal/negative pole conducting terminal; Thereby form a lithium ionic cell module circuit that is formed in parallel by a plurality of cells, and through comprising of framework each cell being arranged to a modular integral body from structure; A plurality of then lithium ion single batteries range upon range of; Top frame cover fixed plastics part in range upon range of integral body; Through the via matrix on this fixed plastics part (forming) by plural exhausting hole; Make the anodal conducting terminal/negative pole conducting terminal matrix (forming) of range upon range of integral head run through respectively and stretch out by anodal conducting terminal and negative pole conducting terminal; On the one hand the fixed plastics part is connected with range upon range of integral body, and makes and to realize being connected in series between a plurality of lithium ionic cell modules through go up a plurality of N of an insertion conductive connecting piece 108 at the via matrix on the fixed plastics part (2*N through hole).And through inserting the anodal inserted sheet/negative pole inserted sheet of battery management system circuit board bottom; The signal of telecommunication that can realize each lithium ionic cell module 101 adopts and the employing of the busbar voltage/current signal of integral power battery, realizes incoming/outgoing management control to offer battery management system.
Therefore the structure of employing present embodiment is only inserted the connection in series-parallel electrical connection that can realize cell through the machinery welding or the card of each parts; And do not need complicated wire bonds to connect, so employing present embodiment technical scheme makes the manufacturing process standardization more of lithium ion battery group; Technology is easy to realize; Control helps realizing process standardization, product package assembly pattern and dimensions flexibility, reduces production costs.
Present embodiment technical scheme in practical application can be carried out series/parallel combination with the lithium ion battery group of a plurality of said structures, obtains being fit to the lithium ion battery group combination of current application flexibly: can be effectively free and be unified into the high-capacity battery group and make up; Can effectively freely be connected into the combination of high-voltage battery group.
Test through the inventor; The lithium ion battery group (or battery combination) of 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.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute to improper qualification of the present invention, in the accompanying drawings:
The assembly structure sketch map of the lithium ion battery group of a kind of preferred structure that Fig. 1 provides for the embodiment of the invention 1;
Fig. 2 is the structural representation after lithium ion battery assembling shown in Figure 1 is joined in the embodiment of the invention 1;
Fig. 3 is an assembly in the lithium ion battery group shown in Figure 1 in the embodiment of the invention 1: the preferred structure sketch map of anodal conducting terminal, negative pole conducting terminal;
Fig. 4 is an assembly in the lithium ion battery group shown in Figure 1 in the embodiment of the invention 1: the preferred structure sketch map of framework;
Fig. 5 is an assembly in the lithium ion battery group shown in Figure 1 in the embodiment of the invention 1: the preferred structure sketch map of fixed plastics part;
Fig. 6 is an assembly in the lithium ion battery group shown in Figure 1 in the embodiment of the invention 1: the preferred structure sketch map of conductive connecting piece;
Fig. 7 is an assembly in the lithium ion battery group shown in Figure 1 in the embodiment of the invention 1: the preferred structure sketch map of battery management system circuit board;
Fig. 8 is an assembly in the lithium ion battery group shown in Figure 1 in the embodiment of the invention 1: the preferred structure sketch map of loam cake;
Fig. 9 is an assembly in the lithium ion battery group shown in Figure 1 in the embodiment of the invention 1: the preferred structure sketch map of positive terminal/negative terminals;
Figure 10 is an assembly in the embodiment of the invention 1 lithium ion battery group shown in Figure 1: the preferred structure sketch map of insulating support structure;
Figure 11 is a lithium ion battery group assembly shown in Figure 10 in the embodiment of the invention 1: the cooling plate structure sketch map.
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; First through hole: 1051; Second through hole: 1052; Screw: 1053;
Conductive connecting piece: 108; Anodal conducting plug: 1081; Negative pole conducting plug: 1082; Screw 1083;
Insulating support: 109; First insulating support: 1091; The second insulator support: 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;
Loam cake: 107; Screw: 1071.
Embodiment
To combine accompanying drawing and specific embodiment to specify the present invention below, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as to qualification of the present invention.
Embodiment 1:
Referring to Fig. 1, shown in 2, a kind of lithium ion battery group that present embodiment provides mainly comprises: battery management system circuit board 104, fixed plastics part 105, positive terminal 1061, negative terminals 1062, loam cake 107, a plurality of lithium ionic cell module 101, plural conductive brace 108.
The concrete structure of each parts and the annexation between the parts are 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.
The face that these cells constitute with its length edge and widthwise edges is as lamination surface; Stacked together each other; 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 also is respectively arranged with a draw-in groove 1034.
As a kind of preferred implementation of present embodiment, can but be not limited to adopt structure shown in Figure 3, this positive pole conducting terminal 1031/ negative pole conducting terminal 1032 by incorporate be positioned at the bottom a upright brace 1033 and a square frame bilge construction form.Wherein the width of brace 1033 equals or slightly is wider than the width of positive pole, negative pole, so that welding operation.The cross section of this frame portion can but be not limited to be " recessed " font or similar " recessed " font structure.
Two cell walls 1035,1036 that when design, make this frame portion center constitute draw-in groove 1034 are respectively along the curved surface of outside sweep in the cell body; Two cell walls, 1035,1036 mutual mirror image symmetries; And make draw-in groove 1034 open top portion width slightly be wider than the width at least one place at draw-in groove 1034 middle parts (particular location can for arbitrarily), can be so that this draw-in groove 1034 be easy to be inserted into.Adopt and to design; When inserting inserted sheet; Only need slightly firmly and can thickness be equaled greater than draw-in groove 1034 the narrowest place width or the plug-in unit of slightly being wider than its draw-in groove 1034 opening portion width inserts, and produce the elastic force in cell body, so when inserting plug-in unit again owing at least one place of 1034 liang of cell walls of draw-in groove 1035,1036 receives bigger outside compressional deformation; 1034 liang of cell walls of draw-in groove 1035,1036 can be firmly spacing interior with the plug-in unit that inserts, 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 that the plug-in unit of insertion is spacing, and make it be not easy to extract or come off.
Above-mentioned anodal conducting terminal 1031/ negative pole conducting terminal 1032 can but be not limited to the five metals terminal of processing by copper, aluminium or other metals or alloy.
Referring to 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 second facade and bottom surface of this lithium ionic cell module 101; Thereby will by the range upon range of lithium ionic cell module that constitutes 101 of a plurality of cells from the bottom and the side encase, make it become a module whole.
This framework 102 can also can when it is metal framework 102, help further improving the heat dispersion of present embodiment lithium ion battery group for metal (such as aluminium, copper, iron or other five metals) for light plastic frame 102 in the present embodiment.
Wherein, the bottom surface of lithium ionic cell module 101 is: with anodal, negative pole place end face opposing end faces, first facade, second facade of lithium ionic cell module 101 are respectively: the end face that is made up of the 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 the framework 102 is designated as first upright frame 1021, the second upright frame 1022, the frame that wraps in lithium ionic cell module 101 bottom surfaces on the framework 102 is designated as underframe 1023.
Through above-mentioned anodal conducting terminal 1031/ negative pole conducting terminal 1032 and a plurality of cell welding; These cell parallel connections are become a small-sized lithium ionic cell module 101; And making these cells form a whole from structure through the outsourcing design of framework 102, mutual group becomes the lithium ionic cell module 101 of present embodiment.
After obtaining a plurality of lithium ionic cell modules 101, be lamination surface with a plurality of lithium ionic cell modules 101 with the face that each cell length edge and widthwise edges constitute, mutual range upon range of formation one range upon range of integral body.
Visible by Fig. 1, form the matrix of forming by anodal conducting terminal 1031 and negative pole conducting terminal 1032 on the top of this range upon range of integral body.
Then, at the fixing fixed plastics part 105 of the end face of range upon range of integral body.
Referring to 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 first through hole 1051, second through hole 1052 respectively.
Referring to shown in Figure 1; From top to bottom fixed plastics part 105 is enclosed within the whole top of lamination; Make in the lamination integral body the anodal conducting terminal 1031 on each lithium ionic cell module 101, negative pole conducting terminal 1032 respectively with fixed plastics part 105 on an exhausting hole corresponding, run through first through hole 1051 respectively, second through hole 1052 passes.At this moment, the design that runs through through the via matrix on anodal conducting terminal 1031, negative pole conducting terminal 1032 matrixes and the fixed plastics part 105 of lamination integral body makes lamination overall fixed working of plastics 105 be connected to one.
Be inserted in fixed plastics part 105 tops each conductive connecting piece 108 structure can but be not limited to referring to shown in Figure 6, uprightly be extended with anodal conducting plug 1081, negative pole conducting plug 1082 respectively in the bottom surface of each conductive connecting piece 108.On fixed plastics part 105, also be provided with by a plurality of screws 1053, can run through screw 1053,1083 and conductive connecting piece 108 and fixed plastics part 105 connected through these screws.
The thickness of wherein anodal conducting plug 1081/ negative pole conducting plug 1082 is preferably: greater than the narrowest width of the draw-in groove 1034 of anodal conducting terminal 1031/ anodal conducting terminal 1031, equal or slightly be wider than the A/F of draw-in groove 1034.
When arbitrary conductive connecting piece 108 is plugged fixed plastics part 105 tops, specifically make:
The anodal conducting plug 1081 of this conductive connecting piece 108 is inserted in the anodal draw-in groove 1034 at anodal conducting terminal 1031 tops at a lithium ionic cell module 101 (being designated as lithium ionic cell module 1011) top of these anodal conducting plug 1081 belows;
The negative pole conducting plug 1082 of this conductive connecting piece 108 be inserted in this negative pole conducting plug 1082 belows and with the negative pole draw-in groove 1034 at negative pole conducting terminal 1032 tops of range upon range of adjacent another lithium ionic cell module 101 (being designated as lithium ionic cell module 1012) of lithium ionic cell module 1011 in.Respectively adjacent in twos lithium ionic cell module 101 is together in series through each conductive connecting piece 108; Through N conductive connecting piece 108 that the lithium ion battery group that N lithium ionic cell module 101 is composed in series a larger capacity is whole, with the bigger electric current of output.After inserting all conductive connecting pieces 108 well, 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, in the present embodiment can but be not limited to conductive connecting piece 108 integral body are arranged to broken line shape.
Referring to 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.Make every inserted sheet row respectively with the lamination integral head by anodal conducting terminal 1031 and negative pole conducting terminal 1032 forms one to arrange conducting terminal corresponding.
Referring to shown in Figure 1; When assemble management system circuit board 104; The anodal inserted sheet 1041/ negative pole inserted sheet 1042 of its bottom is distinguished in the draw-in groove 1034 at the anodal conducting terminals 1031/ negative pole conducting terminal of lamination integral head 1032 tops, promptly in each anodal conducting terminal 1031 (or conducting terminal top) draw-in groove 1034, be inserted with an anodal inserted sheet 1041 (or negative pole inserted sheet 1042) of battery management system circuit board 104 bottoms and an anodal conducting plug 1081 (or negative pole conducting plug 1082) of conductive connecting piece 108 bottom surfaces this moment jointly.
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 through the anodal inserted sheet 1041/ negative pole inserted sheet 1042 in these battery management system circuit board 104 bottoms; Can sample through the signal of telecommunication (voltage/current) of each lithium ionic cell module 101 in 1042 pairs of lamination integral body of anodal inserted sheet 1041/ negative pole inserted sheet and by the whole busbar voltage bus current of lamination that lithium ionic cell module 101 is composed in series, carry out battery management control for it so that input to battery management system.
Referring to shown in Figure 1; Loam cake 107 fixedly the time; Can but be not limited to the five metals material is processed positive terminal 1061, negative terminals 1062 that bolt 901 is arranged at its top; The five metals sheet of bolt 901 bottoms is fixed (can but be not limited to be connected with screw) on fixed plastics part 105; On the loam cake above the bolt 901 107, be provided with then with positive terminal 1061, negative terminals 1062 respectively over against the position one screw 1071 is set; Positive terminal 1061, the negative terminals that make run through the screw 1071 that screws in loam cake 107 respectively and are fixed on the fixed plastics part 105, and the installation through positive terminal 1061, negative terminals sub 1062 is fixed together loam cake 107, fixed plastics part 105 and battery management system circuit board 104.
In the present embodiment as the structure of the positive terminal of this power lithium-ion battery group both positive and negative polarity input and output 1061, negative terminals 1062 referring to shown in Figure 9; Positive terminal 1061, negative terminals 1062 are separately fixed at the top of loam cake 107, are connected with positive pole, the negative electricity of the bus of battery management system circuit board 104 respectively.
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 insulated enclosure circle 1012 respectively, each insulated enclosure circle 1012 is enclosed within respectively between positive terminal 1061/ negative terminals son 1062 and the loam cake 107.
Therefore; Adopt the present embodiment technical scheme; Positive pole/the negative pole of a plurality of cells is welded to respectively on the anodal conducting terminal 1031/ negative pole conducting terminal 1032; Thereby form lithium ionic cell module 101 circuit that are formed in parallel by a plurality of cells, and through comprising of framework 102 each cell being arranged to a modular integral body from structure; A plurality of then lithium ion single batteries range upon range of; Top frame cover fixed plastics part 105 in range upon range of integral body; Through the via matrix on this fixed plastics part 105 (forming) by plural exhausting hole; Make anodal conducting terminal 1031/ negative pole conducting terminal 1032 matrixes (forming) of range upon range of integral head run through respectively and stretch out by anodal conducting terminal 1031 and negative pole conducting terminal 1032; On the one hand fixed plastics part 105 is connected with range upon range of integral body, and makes and to realize being connected in series between a plurality of lithium ionic cell modules 101 through go up a plurality of N of an insertion conductive connecting piece 108 at the via matrix on the fixed plastics part 105 (2*N through hole).And through inserting the anodal inserted sheet 1041/ negative pole inserted sheet 1042 of battery management system circuit board 104 bottoms; The signal of telecommunication that can realize each lithium ionic cell module 101 adopts and the employing of the busbar voltage/current signal of integral power battery, realizes incoming/outgoing management control to offer battery management system.
Therefore the structure of employing present embodiment is only inserted the connection in series-parallel electrical connection that can realize cell through the machinery welding or the card of each parts; And do not need complicated wire bonds to connect, so employing present embodiment technical scheme makes the manufacturing process standardization more of lithium ion battery group; Technology is easy to realize; Control helps realizing process standardization, product package assembly pattern and dimensions flexibility, reduces production costs.
Present embodiment technical scheme in practical application can be carried out series/parallel combination with the lithium ion battery group of a plurality of said structures, obtains being fit to the lithium ion battery group combination of current application flexibly: can be effectively free and be unified into the high-capacity battery group and make up; Can effectively freely be connected into the combination of high-voltage battery group.
Test through the inventor; The lithium ion battery group (or battery combination) of 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 whole structure of present embodiment lamination, can also on the framework 102 outside each lithium ionic cell module 101, carry out following design (referring to Fig. 4):
On each framework 102, the end face of the straight frame outside being wrapped in first facade of lithium ionic cell module 101, second facade also is respectively arranged with a column 1026.
Referring to shown in Figure 10; In the present embodiment; Can also between range upon range of integral body and fixed plastics part 105, increase an insulating support 109 (can but be not limited to plastic stent); This insulating support 109 is provided with plural number and arranges groove and (establish N row; The number of fluting is consistent with the number of lithium ionic cell module 101), two columns 1026 at framework 102 tops on whenever arranging anodal conducting terminal 1031, negative pole conducting terminal 1032 and this lithium ionic cell module 101 that is penetrated with the lithium ionic cell module 101 below this fluting in the groove respectively.
The design that increases this insulating support 109 can be avoided the mutual short circuit of electrode of each lithium ionic cell module 101 on the one hand through the interval of this fluting, further can will guarantee the range upon range of regularity of each range upon range of lithium ionic cell module 101 in the range upon range of integral body on the other hand through column 1026 simply with the location of fluting end.Further guarantee the standardization and the accuracy of technology controlling and process, help improving process efficiency.
Further, the insulating support 109 of present embodiment can but be not limited to form by first insulating support 1091109, the second insulator support 1092, on the first insulator support, the second insulator support 1092, be respectively arranged with plural number row fluting 1093.
Referring to shown in Figure 10; When installing; Insert first insulating support 1091109, the second insulator support 1092 respectively from the front and back ends of range upon range of integral body, make the column 1026 (offseting) that is positioned at framework 102 front ends, the son fluting 1093 that anodal conducting terminal 1031 (or negative pole conducting terminal 1032) is positioned at first insulating support 1091109 with the fluting front end; Be positioned at the column 1026 (offseting) of framework 102 front ends, the son fluting 1093 that negative pole conducting terminal 1032 (or anodal conducting terminal 1031) is positioned at first insulating support 1091109 with the fluting rear end.Every row's fluting 1093 of first insulating support 1091109, the second insulator support 1092 is docked and connected at the middle part of range upon range of integral body, and the groove that whenever arranges that is interconnected just constitutes one of insulating support 109 and arranges groove.
Adopt this design to further facilitate the standardization and the accuracy of mounting process, be convenient to process implementing.
Referring to shown in Figure 10, the 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, the mode of perhaps playing glue through screw links together insulating support 109 and plastic fixtures firmly.
Referring to Fig. 1, shown in 4; In the present embodiment can also but be not limited on the first upright frame 1021 of each framework 102 and the second upright frame 1022, be respectively provided to less a pair of: screens is right, and this screens is to being made up of the fixture block 1024 and the draw-in groove 1025 of the two opposite outer that is co-located on a upstanding edge frame.Right fixture block 1024, draw-in groove 1025 position level of every screens support or oppose, and fixture block 1024 is outwards outstanding, and draw-in groove 1025 is inwardly recessed.Like this when carrying out the synthetic range upon range of integral body of a plurality of lithium ionic cell module 101 stack; The first upright frame 1021 that can be through adjacent two frameworks 102, the fixture block 1024 of the second upright frame 1022 are spacing with draw-in groove 1025: the fixture block 1024 on the outer arbitrary upright frame of 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; Through this easy fixture block 1024 and draw-in groove 1025 assembly manipulations; Neat range upon range of integral body can be fitly obtained, and the displacement between each lithium ionic cell module 101 can be avoided.
Referring to Fig. 1, shown in 4, it is right on each upright frame of each framework 102, two pairs of screens can be set respectively, wherein a pair of top near framework 102, and another is to the bottom near framework 102.Adopt two pairs screens up and down to be provided with and be beneficial to the lamination operation that further facilitates between each range upon range of lithium ionic cell module 101, guarantee the regularity of range upon range of level, height.
Referring to shown in Figure 10; Can also but be not limited to two sides (these two sides for the face parallel) and be close to respectively and cover a heating panel 1010 (referring to Figure 11, shown in 14) heating panel 1010 and can be various metallic plates with lamination surface in the outermost end of the range upon range of integral body of present embodiment, 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 present embodiment lithium ion battery group.
Referring to shown in Figure 10, can also but be not limited to all be bundled in bandage 1011 firmly thereby make range upon range of integral body and two be positioned at the range upon range of heating panel 1010 of carrying two lateral surfaces at the periphery of the range upon range of integral body of present embodiment binding bandage 1011.Adopt this tie relate to one conveniently help guaranteeing heating panel 1010 and range upon range of integral surface subsides clothes intensity, further guarantee the structure steadiness that lamination is whole on the other hand, be convenient to transportation and use.
The number of turns of above-mentioned tie can be two or more, is bundled in range upon range of whole middle part, bottom respectively.
When designing, can be at the arranged outside of heating panel 1010 a banded recess 1013 at least, and then when carrying out the tie binding, make in the spacing banded recess 1013 with two relative heating panels 1010 of tie, avoid the tie displacement.
Need to prove; Set out by present embodiment technical scheme thinking; Can also be with the lithium ion battery group of above-mentioned Fig. 1, structure shown in 2 as the lithium ion battery pack module, and adopt that technique scheme is further range upon range of with it, the connection in series-parallel combination and obtain electric current, voltage, lithium ion battery group that capacity is bigger is whole.
More than the technical scheme that the embodiment of the invention provided has been carried out detailed introduction; Used concrete example among this paper the principle and the execution mode of the embodiment of the invention are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a lithium ion battery group is characterized in that, comprising: battery management system circuit board, fixed plastics part, positive terminal, negative terminals are sub, loam cake, a plurality of lithium ionic cell module, plural conductive brace;
Each said lithium ionic cell module comprises: be wrapped in first facade of this said lithium ionic cell module and the framework of second facade and bottom surface outer surface, anodal conducting terminal, negative pole conducting terminal, a plurality of cell,
Wherein, The positive pole of each said cell is welded on the brace of said anodal conducting terminal lower end jointly; The negative pole of each said 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 said anodal conducting terminal, negative pole conducting terminal
Wherein, the bottom surface of said lithium ionic cell module is and said positive pole, negative pole place end face opposing end faces that said first facade, second facade are respectively the end face that is made up of the thickness edge of each cell and length edge;
All said lithium ionic cell modules are in the mutual range upon range of formation one range upon range of integral body of lamination surface, and said lamination surface is the end face that each cell length edge and widthwise edges constitute;
Said fixed plastics part is fixed on the top of said range upon range of integral body, is provided with plural exhausting hole at the top of said fixed plastics part, and the said through hole of every row is made up of first through hole, second through hole respectively,
Each the said anodal conducting terminal, the negative pole conducting terminal that are fixed on each said lithium ionic cell module run through each said first through hole, second through hole respectively, stretch out from said first through hole, second through hole respectively;
Bottom surface at each said conductive connecting piece uprightly is extended with anodal conducting plug, negative pole conducting plug respectively,
Wherein, The said anodal conducting plug of arbitrary said conductive connecting piece is inserted in the said anodal draw-in groove at anodal conducting terminal top at a said lithium ionic cell module top of this anodal conducting plug below, said negative pole conducting plug be inserted in this negative pole conducting plug below and the said negative pole draw-in groove at the negative pole conducting terminal top of another said lithium ionic cell module that the said lithium ionic cell module that is connected with said anodal conducting plug is adjacent in;
Said battery management system circuit board is fixed on the top of said fixed plastics part; Be provided with plural inserted sheet row in the bottom surface of the battery management system circuit board of said fixed plastics part; Every said inserted sheet row is made up of anodal inserted sheet, negative pole inserted sheet respectively; Wherein each said anodal inserted sheet, negative pole inserted sheet respectively with said battery management system in the sampling circuit electric connection
Wherein, Arbitrary said inserted sheet row's said anodal inserted sheet is inserted in the said anodal draw-in groove at anodal conducting terminal top at a said lithium ionic cell module top of this said anodal inserted sheet below, in the said negative pole draw-in groove at the negative pole conducting terminal top of another said lithium ionic cell module that the lithium ionic cell module that said negative pole inserted sheet is inserted in this said negative pole inserted sheet below, be connected with said anodal inserted sheet that this inserted sheet is arranged is adjacent;
Said loam cake fixedly covers the top of said battery management system circuit board; Said positive terminal, the sub top that is fixed on said loam cake of negative terminals as these said power lithium-ion battery group both positive and negative polarity input and output are electrically connected with said battery management system circuit board respectively.
2. lithium ion battery group according to claim 1 is characterized in that,
Between said range upon range of integral body and fixed plastics part, also be fixed with insulating support,
On each said framework, be wrapped in first facade of said lithium ionic cell module and the end face of the straight frame outside second facade and also be respectively arranged with a column,
Said insulating support is provided with plural number and arranges groove; At the two said columns that whenever arrange the anodal conducting terminal, negative pole conducting terminal and the said frame roof that are penetrated with the said lithium ionic cell module below this fluting in the groove respectively, spacing respectively the both ends of two said columns at the said fluting of every row.
3. lithium ion battery group according to claim 3 is characterized in that,
Said insulating support is made up of first insulating support, the second insulator support of mutual butt joint;
On the said first insulator support, the second insulator support, be respectively arranged with plural number row fluting,
When said first insulating support, the butt joint of the second insulator support; The said son fluting of each row on said first insulating support, the second insulator support is docked and connected with the said son fluting of each row on the said second insulator support each other, and what constitute said insulating support respectively respectively arranges groove.
4. lithium ion battery group according to claim 3 is characterized in that,
Said insulating support is connected through screw with said plastic fixtures perhaps plays the fixed connection of glue connected mode.
5. lithium ion battery group according to claim 1 is characterized in that,
On each said framework, be wrapped on the two upright frames of the outer straight frame of first facade and second facade of said lithium ionic cell module and be respectively arranged with at least one pair of: screens is right,
Each fixture block is positioned at an outside of said upright frame; Said draw-in groove is positioned at another relative outside of said upright frame, and the composition that is located at another outside of this said upright frame, and said fixture block, draw-in groove position level support or oppose; Said fixture block is outwards outstanding, and said draw-in groove is inwardly recessed;
Range upon range of when whole in the mutual range upon range of formation of lamination surface one when all said lithium ionic cell modules, the said fixture block of the framework that arbitrary lithium ionic cell module is outer is limited in the draw-in groove of another said framework adjacent with this said framework.
6. lithium ion battery group according to claim 6 is characterized in that,
It is right that each said framework is provided with two pairs of said screens, lays respectively at the upper end and the lower end of two upright frames of this said framework.
7. according to the arbitrary described lithium ion battery group of claim 1 to 7, it is characterized in that,
Two cell walls of the cell body of said anodal draw-in groove and/or said negative pole draw-in groove are respectively: along the curved surface of outside sweep in the cell body, and the mutual mirror image symmetry of two said cell walls,
Be wider than the width at least one place at draw-in groove middle part at the width of the opening part of said cell body.
8. arbitrary according to Claim 8 described lithium ion battery group is characterized in that,
Two cell walls of said cell body are not connected in the bottom of said cell body.
9. according to the arbitrary described lithium ion battery group of claim 1 to 7, it is characterized in that,
Also be coated with a heating panel respectively in said range upon range of two parallel with the said lamination surface on the whole relative outsides.
10. a lithium ion battery group combination is characterized in that, comprises the arbitrary described lithium ion battery group of a plurality of claims 1 to 9,
Each said lithium ion battery group is by the arbitrary described lithium ion battery group parallel connection of a plurality of claims 1 to 9 or be composed in series.
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 |
|---|---|---|---|
| CN201210199418 | 2012-06-17 | ||
| CN201210199418.0 | 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 true CN102751542A (en) | 2012-10-24 |
| CN102751542B CN102751542B (en) | 2014-06-04 |
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| 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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| CN104241579A (en) * | 2013-06-07 | 2014-12-24 | 松下电器产业株式会社 | Battery pack |
| CN105552294A (en) * | 2016-02-02 | 2016-05-04 | 北方奥钛纳米技术有限公司 | Battery module |
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| CN102751542B (en) | 2014-06-04 |
| CN202695647U (en) | 2013-01-23 |
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