CN102870252B - Thin type battery module and use the battery pack of this module - Google Patents
Thin type battery module and use the battery pack of this module Download PDFInfo
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- CN102870252B CN102870252B CN201180011561.6A CN201180011561A CN102870252B CN 102870252 B CN102870252 B CN 102870252B CN 201180011561 A CN201180011561 A CN 201180011561A CN 102870252 B CN102870252 B CN 102870252B
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- battery module
- thin type
- type battery
- connector portions
- electric power
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 20
- 238000009826 distribution Methods 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 6
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 5
- 238000003475 lamination Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000002788 crimping Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/42—Grouping of primary cells into batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a kind of connection can carrying out the electrode terminal of battery module very easily, and do not need the battery module of the connection bus of electrode terminal when central combination battery module and use its battery pack.By multiple unit (2, 2) be accommodated in chamber (1), and in the thin type battery module these multiple cells overlaps being also electrically connected and forming, on the top and bottom of described chamber (1), the connector portions (11 that the connecting elements (7) that formation is electrically connected with adjacent thin type battery module will insert, 11), inner at the described chamber (1) adjacent with described each connector portions (11), arrange and form the lead terminal (3 of conducting to described unit (2), 4) electric power is with connector portions (60), described electric power connector portions (60) is detachably provided with described connecting elements (7) thereon.
Description
Technical field
The present invention relates to use multiple lamination unit to form thin type battery module, with the battery pack that this thin type battery module central combination formed.In addition, in this manual, so-called lamination unit refers to the thin type unit of stacked pattern, and unit uses the meaning comprising battery unit or monocell.
Background technology
As this kind of thin type battery module, there will be a known multiple lamination unit central combination, and connect into electrical series and (or) parallel connection, around formed with the chamber covering of resin component element or metal.In addition, in order to drive the vehicle movement motor of electric motor car (Electric Vehicle) or hybrid electric vehicle (HybridElectric Vehicle), because need jumbo electric power, and there will be a known these multiple thin type battery module central combination and be electrically connected in series, such as, the battery pack of 100V or 350V specification is configured to.In addition, battery pack also can be used as electric power storage with and use.
Then, by multiple for thin type battery module central combination, and when being electrically connected in series and forming battery pack, as can really and carry out the structure of this electric connection easily, leads for connecting and bus in the side surface part of thin type battery module, and are installed on these connecting elementss by the connecting elements of configuration positive pole and negative pole.
In general, by thin type battery module central combination, and use bus when these are electrically connected, the words that its central combination quantity is different, then the length in central combination direction is different, and the bus be therefore arranged on the connecting elements of each thin type battery module can use the length being suitable for central combination quantity or central combination length aspect.
And, as the structure connecting adjacent thin type battery module, also there will be a known following structure: prepare bus that is a kind of or a few species, and the connecting elements of the next-door neighbour of adjacent thin type battery module is configured in the mode that both positive and negative polarity is different, and realize these adjacent both positive and negative polarities to electrically conduct each other by the bus of these majorities.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2006-066322 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2007-265945 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2009-231267 publication
Patent documentation 4: Japanese Unexamined Patent Publication 2009-301874 publication
Patent documentation 5: Japan Patent No. 3731595 publication
Summary of the invention
(inventing the problem that will solve)
As mentioned above, because jumbo battery pack forms, multiple for thin type battery module central combination so the structure of electric connection of battery pack has great association with the electrode arrangement of the thin type battery module as its inscape.Further, by thin type battery module itself, be accommodated in the positive pole of this lamination unit and the configuration of negative wire terminal, electrode structure can differ widely.
About this respect, such as, as the battery module of the Japanese Unexamined Patent Publication 2007-265945 publication of above-mentioned patent documentation 2, have at positive pole extended on orthogonal direction and negative wire terminal relative to cells overlap direction, the lead terminal of identical polar protruded from same direction each other simultaneously and arrange, the lead terminal of above-mentioned identical polar be fixed to one another and be connected in each bus of positive pole use and negative pole, and can simply be constructed.
The present invention proposes in this type of battery module, the simplification of the structure of electric connection of module and arrangement and intermodule can be further developed, the simplification of the formation of thin type battery module can be realized, and between adjacent thin type battery module, do not need the thin type battery module of the bus of the connection being used in electrode terminal both sides and use its battery pack.
(technical scheme of technical solution problem)
When enclosing element numbers that embodiment uses and recording, the thin type battery module of first aspect present invention, by by multiple unit 2, 2 to be accommodated in chamber 1 and these multiple cells overlaps are electrically connected and are formed, the feature of described thin type battery module is, on the top and bottom of described chamber 1, the connector portions 11 that the connecting elements 7 that formation is electrically connected with adjacent thin type battery module will insert, 11, inner at the described chamber 1 adjacent with described each connector portions 11, arrange and form the lead terminal 3 of conducting to described unit 2, the electric power connector portions 60 of 4, described electric power connector portions 60 is detachably provided with described connecting elements 7 thereon.
The feature of the thin type battery module of second aspect present invention is, in first aspect present invention, connector portions 11 and described each electric power connector portions 60 of the top and bottom of described chamber 1 are arranged at same position on the central combination direction of unit.
The feature of the thin type battery module of third aspect present invention is, described each unit 2 has at positive pole extended on orthogonal direction and negative wire terminal 3 relative to cells overlap direction, 4, the lead terminal of identical polar protruded from same direction each other simultaneously and arrange, the lead terminal of described identical polar is fixed to one another and be connected to positive pole with and each bus 6 of negative pole, on 6, the bus 6 of described positive pole use and negative pole, the base portion 62 of 6 both sides, 62 are configured to overlapping shape via insulating component, at the described bus base portion 62 being configured to the both sides of overlapping shape, on 62, electric power connector portions 60 is set.
The feature of the thin type battery module of fourth aspect present invention is, in first aspect present invention, described bus 6 has and the connecting portion 61 of described lead terminal 3,4 and described electric power connector portions 60, expose to the connecting portion of major general and this lead terminal and this electric power connector portions 60 simultaneously, utilize insulative resin to mould surrounding.
The feature of the thin type battery module of fifth aspect present invention is, in first aspect present invention, described positive pole is used and both sides' bus 6,6 of negative pole has and the connecting portion 61 of described lead terminal 3,4 and described electric power connector portions 60, and for utilizing insulative resin to mould same configuration around.
The feature of the thin type battery module of sixth aspect present invention is, in first aspect present invention, arranges flat supporting bracket 5, this supporting bracket 5 up and down respectively configure a unit 2.
The feature of the thin type battery module of seventh aspect present invention is, in first aspect present invention, the position of described electric power connector portions 60 is formed as other position being thicker than described bus 6, in addition, described connecting elements 7 has at central portion: diameter is greater than the central base 71 of described electric power connector portions 60; For being installed on the position of described electric power connector portions 60, and be symmetricly set on the side of described central base 71 and the protuberance 72,72 of opposite side.
The feature of the thin type battery module of eighth aspect present invention is, in first aspect present invention, the positive wire terminal 3 of described each unit 2,2 is made up of the material then fused when the current flowing exceeding designated value, in addition, the substrate 9 that voltage that the distribution 91 on the positive wire terminal 3 being separately fixed at each unit 2,2 is connected with the distribution 92 being fixed on described negative side measures is provided with.
The feature of the thin type battery module of ninth aspect present invention is, in eighth aspect present invention, on described substrate 9 or described distribution, is provided with the temperature sensor 93 of cell temperature measurement.
The battery pack of tenth aspect present invention, it is characterized in that, by the multiple central combination of thin type battery module in the present invention the first to nine described in either side, between adjacent thin type battery module, connecting elements be installed and form battery pack simultaneously, being connected in series the thin type battery module of these multiple central combination.
The feature of the battery pack of the present invention the 11 aspect is, in tenth aspect present invention, have the support portion of the thin type battery module supporting described multiple central combination, this support portion arranges two output power supply units of side of the positive electrode and negative side, the side of the positive electrode of thin type battery module of described two out-put supply portions and described central combination and the electric power connector portions of negative side are electrically conducted respectively via described connecting elements.
(effect of invention)
According to the present invention first and the tenth aspect, the connector portions that the thin type battery module that the present invention relates to inserts owing to being formed with connecting elements on the top and bottom of above-mentioned chamber, so connecting elements is inserted between adjacent thin type battery module by means of only simple, just can realize electrically conducting.
Therefore, when forming battery pack, as background technology, not using multiple leads for connecting etc., and electrically conducting of battery pack can be realized.Especially as the present invention the 11 aspect, when being provided with the support portion of support cells group, because use the connecting elements of such as seventh aspect present invention, and the side of the positive electrode of thin type battery module at side of the positive electrode and two output power supply units of negative side and the both ends of battery pack and the electric power connector portions of negative side can be realized to electrically conduct, so the wire that produces and connecting elements and wire interference etc. each other when using leads for connecting and bus can be avoided, the fault that wire/bus is relevant can be avoided, even because do not need wiring space and the wiring operation such as the wire connected, so the change easily of simplification and the making constructed can be realized further.
And, as second aspect present invention, in thin type battery module of the present invention, because the connector portions of chamber top and bottom and each electric power connector portions are formed at same position on the central combination direction of unit, if so use connecting elements and be arranged on above-mentioned each connector portions, then battery pack can be formed, therefore, when forming battery pack, location and contraposition become easy, and naturally can realize the alignment of thin type battery module, therefore, it is possible to realize the Labor-saving of change and the operation easily that battery pack is formed.
As third aspect present invention, in thin type battery module, arrange because of the lead terminal of identical polar is protruded from same direction each other, the base portion of each bus 6,6 being fixed on this is configured to overlapping shape, electric power connector portions is arranged on these bus base portions, therefore make the configuration of lead terminal and bus or even electric power connector portions rationalize and simplify, it can be made to manufacture and change easily.
As fourth aspect present invention, when utilizing insulative resin to mould around bus, when the base portion of the bus both sides by positive pole use and negative pole is configured to overlapping shape, because naturally insulation structure can be realized, so do not need insulating component in addition, and promote workability, and, also can avoid the poor flow produced when insulating component is set in addition.
According to a fifth aspect of the present invention, because both sides' bus of positive pole use and negative pole can be set to same configuration, so bus is a kind, the Labor-saving of number of spare parts can be realized.Further, owing to utilizing insulative resin to mould around bus, thus the same with the situation of above-mentioned fourth aspect, the lifting of workability can be realized and avoid bad.
This type of unit is generated heat by discharge and recharge, the undue heat that the presence or absence of its cooling and cooling rate can produce to the deterioration of battery performance and internal short-circuit or when overcharging and wait exception and smoldering of causing, the danger such as to catch fire has great impact, according to a sixth aspect of the present invention, owing to configuring two unit like this, and the top and bottom of chamber and each battery unit planar portions adjacent, therefore a side of both sides all by chamber effectively and carry out the heat exchange with outside atmosphere equably, the temperature of battery unit can be suppressed to rise and the acceleration suppressing battery deterioration.
According to a seventh aspect of the present invention, because be provided with the central base that diameter is greater than electric power connector portions on connecting elements, so this central base is connected to bus, the location of connecting elements can be carried out.Now, the protuberance of the side of connecting elements is arranged on electric power connector portions and realizes electrically conducting, the protuberance of opposite side give prominence to from bus and form after connection position.Further, because the position of electric power connector portions is formed as other position being thicker than bus, so the contact area with the connecting elements being installed on this electric power connector portions can be increased, the reliability electrically conducted can be guaranteed.
According to a eighth aspect of the present invention, the voltage of each unit of substrate can be measured respectively when normal.Then, when making big current flow on lead terminal due to any abnormal situation, positive wire terminal fuses.Usually, the exception being positioned at the thin type battery module of chamber cannot judge from outside, but when above-mentioned lead terminal fusing, the voltage of substrate changes, therefore, it is possible to detect this exception.Therefore, it is possible to suitably carry out the replacement etc. of abnormal thin type battery module corresponding to this.
According to a ninth aspect of the present invention, owing to being provided with the temperature sensor of cell temperature measurement on substrate or distribution, therefore, it is possible to detect the temperature information of unit, and the accurate voltage of unit and the supervision of temperature can be carried out.
Accompanying drawing explanation
Fig. 1 represents that the entirety of the thin type battery module that the present invention relates to forms stereogram.
Fig. 2 is the pith amplification formation stereogram omitting upper and lower chamber component in Fig. 1 and represent.
Fig. 3 is the vertical view of the thin type battery module representing this example.
Fig. 4 is the vertical view representing the state of taking upside chamber component from the thin type battery module of Fig. 3 apart.
Fig. 5 is the longitudinal section at the bus place of Fig. 4.
Fig. 6 is the enlarged drawing in the X portion of Fig. 5.
Fig. 7 represents that the entirety using the thin type battery module that the present invention relates to form battery pack forms stereogram.
Fig. 8 is the stereogram representing state battery pack being accommodated in storage bracing frame.
Fig. 9 is the vertical view of the thin type battery module representing other example.
Symbol description
1 chamber component
Chamber component on the upside of 1A
Chamber component on the downside of 1B
11 connector portions
The connector portions of chamber component on the upside of 11A
The connector portions of chamber component on the downside of 11B
Unit 2
2A high-side unit
2B lower side unit
3 lead terminals
The positive wire terminal of 3A high-side unit 2A
The negative wire terminal of 3B high-side unit 2A
4 lead terminals
The positive wire terminal of 4A lower side unit 2B
The negative wire terminal of 4B lower side unit 2B
5 supporting brackets
6 buses
6A positive pole bus
6B negative pole bus
60 electric power connector portions
61 bus leading sections
62 bus base portions
63 insulating components
7 connecting elementss
71 central base
72 protuberances
72A upper side tabs
Protuberance on the downside of 72B
8 leads support framves
Leads support frame above 8A
Leads support frame below 8B
81 padded coamings
9 substrates
91A positive pole distribution
91B positive pole distribution
92 negative pole distributions
93A temperature sensor
93B temperature sensor
94A connecting portion
94B connecting portion
95A upper board bracing frame
95B lower board bracing frame
100 thin type battery modules
110 thin type battery modules
200 battery pack
201 support portions
202 base plate
203 top plate portions
204 bars
205 output power supply units
206 output power supply units
207 output distributions.
Embodiment
Below, in accordance with the embodiments illustrated pin the present invention will be described.In Fig. 1 to Fig. 6, multiple unit 2,2 (2A, 2B) is accommodated in upper and lower chamber component 1,1 (upside chamber component 1A, downside chamber component 1B) by the thin type battery module 100 of this example, and is configured to be connected in parallel by these multiple cells overlaps.In this instance, unit 2,2 can use high-side unit 2A and lower side unit 2B two unit.
Each unit 2A, 2B have at positive wire terminal extended on orthogonal direction (the lead terminal 3A of high-side unit 2A, the lead terminal 4A of lower side unit 2B) and negative wire terminal (the lead terminal 3B of high-side unit 2A, the lead terminal 4B of lower side unit 2B) relative to its overlapping direction, and the lead terminal of identical polar are protruded from same direction each other and arranges.In addition, in this example, positive wire terminal 3A, 4A and negative wire terminal 3B, 4B both sides all protrude from same direction.
In addition, in this example, flat supporting bracket 5 is arranged on central portion, and clamps this supporting bracket 5 and dispensing unit 2A, 2B.This type of lamination unit is generated heat by discharge and recharge, and presence or absence and the cooling rate of its cooling can have great impact to battery performance.Due to like this by two cell locations in up and down, therefore the heat exchange with outside atmosphere is all carried out by chamber component 1A, 1B in both sides one side.Thus, the acceleration of the battery deterioration caused by unit heating can be suppressed.
In figure, element numbers 6 is buses, and the lead terminal of unit 2 is connected in this bus 6.In this example, clamp supporting bracket 5, positive pole bus 6A is configured at upside, negative pole bus 6B is configured at downside.Above-mentioned outstanding in the same direction positive wire terminal 3A, 4A are connected on positive pole bus 6A, and negative wire terminal 3B, 4B are connected on negative pole bus 6B.These lead terminals 3,4 and being connected and fixed of bus 6 are undertaken by laser welding.
Further, bus 6 has and copper coin is carried out drawing and is formed and be formed as the leading section 61 of crank-like, the base portion 62 with formation electric power connector portions 60 described later.In addition, around the base portion side of bus 6, except electric power connector portions 60 is sentenced, moulding (covering) has resinous insulating component 63.
In above-mentioned bus 6, positive pole with and the bus 6A of negative pole, the base portion 62,62 of 6B both sides be configured to overlapping shape.In this example, positive pole is used and bus 6A, the 6B of negative pole clamp supporting bracket 5, and is fixed by tapping screw.
As this example, due to by positive pole with and the bus 6A of negative pole, the base portion 62,62 of 6B both sides be configured to overlapping shape, and utilize insulative resin to mould bus 6 around, therefore, it is possible to naturally realize insulation structure.When utilizing insulative resin to mould the surrounding of bus like this, insulating component can not be needed in addition and improve workability, and when arranging insulating component in addition, have and how to be configured by it or vibration etc. and produce insulating component and move or the danger of the poor flow such as short circuit, if carry out moulding and by insulating component immobilization, then can avoiding this type of state of affairs.
When above-mentioned bus 6A, 6B are configured to overlapping shape, above-mentioned both sides' electric power connector portions 60,60 set on both sides' bus base portion 62,62 is when observing from the direction of unit 2A, 2B overlap, and the center of these connector portions is formed at same position.
In addition, electric power with connector portions 60,60 one or both on, connecting elements 7 described later is detachably installed, and being electrically connected in series of adjacent thin type battery module can be realized.
Therefore, when forming battery pack when using the thin type battery module 100 of this example, owing to only using connecting elements 7 and being arranged in electric power connector portions 60,60, so there is no as background technology, use multiple leads for connecting and bus, electrically conducting of battery pack can be realized.
Do not use multiple leads for connecting etc. like this and realize electrically conducting of battery pack, the wire that produces when using leads for connecting etc. and connecting elements and wire interference etc. each other can be avoided, the fault that wire/bus is relevant can be avoided, even because do not need wiring space and the wiring operation such as the wire connected, so the simplification of thin type battery module configurations and the change easily of making can be realized.
And, in this example, the electric power connector portions 60 of bus 6A, 6B both sides owing to being formed at same position on the overlapping direction of unit, therefore use connecting elements 7 and be installed on electric power connector portions 60,60 forms battery pack time, location and contraposition become easy, and naturally can realize the alignment of thin type battery module, therefore, it is possible to realize the Labor-saving of change and the operation easily that battery pack is formed.
The position of above-mentioned electric power connector portions 60 is formed as other position being thicker than bus 6.Because connecting elements 7 is detachably installed on this electric power connector portions 60, so be formed as by the position of electric power connector portions 60 other position being thicker than bus 6, thus this electric power connector portions 60 can be made to promote with the electrically conducting property of connecting elements 7.
Above-mentioned connecting elements 7 have central portion place diameter be greater than electric power connector portions 60 central base 71, with the protuberance 72 be symmetricly set on the side of this central base 71 and opposite side.Protuberance 72 is the positions being installed in electric power connector portions 60, and in the case of this example, the downside protuberance 72B in both sides' protuberance 72A, 72B is installed in positive pole bus 6A.Upper side tabs 72A gives prominence to from bus 6A, and the connection position after forming.
Namely, upper side tabs 72A other thin type battery module from top overlap so far thin type battery module time, be embedded in the electric power connector portions 60 being positioned at the negative pole bus 6B of downside of this top thin type battery module, electrically conduct thereby, it is possible to realize being connected in series between the overlapping battery module of thin type up and down.
About the thin type battery module 100 of this example formed like this, on connecting elements 7, be greater than the central base 71 of electric power connector portions owing to being provided with diameter, thus this central base 71 is connected to bus 6, and carries out the location of connecting elements 7.Further, electric power connector portions 60, owing to being formed as other position being thicker than bus 6, therefore as mentioned above, can increase the contact area with the connecting elements 7 being arranged on this electric power connector portions 60, and guarantees the reliability that electrically conducts.
In figure, element numbers 8 is leads support framves, has: the leads support frame 8A of crimping lead-in wire positive wire terminal 3A from top to bottom; Be different from this leads support frame 8A and make in addition, from the leads support frame 8A of top crimping lead-in wire negative wire terminal 3B; The leads support frame 8B of crimping lead-in wire positive wire terminal 3A, 4A and negative wire terminal 3B, 4B from the bottom up.
On the electrolysis of leads support frame 8, be provided with padded coaming 81.Further, supporting bracket 5 clamped betwixt by each leads support frame 8, and is fixed by tapping screw.
Above-mentioned each unit 2A, 2B and above-mentioned both sides bus 6A, 6B are incorporated in the chamber that is made up of upper and lower chamber component 1A, 1B, in addition, on the component of chamber up and down 1A, 1B of corresponding to above-mentioned electric power connector portions 60,60, form the connector portions 11 (11A, 11B) of inserting above-mentioned connecting elements 7.
In addition, about the thin type battery module 100 of this example, positive wire terminal 3A, 4A of above-mentioned each unit 2A, 2B formed by the material then fused when the electric current flowing beyond designated value.In this instance, positive wire terminal 3A, 4A formed by aluminium, then fuse when flowing through the electric current more than 250 amperes.
Further, with the supporting bracket 5 of above-mentioned bus 6 opposition side near, be provided with voltage measurement substrate 9.On this substrate 9, be equipped with not shown microcomputer, distribution 91A, the 91B be separately fixed on positive wire terminal 3A, 4A of each unit 2A, 2B is connected with the distribution 92 being fixed on negative side, and these distributions form voltage measurement FPC (flexible print wiring) as thin wire.In addition, the substrate 9 of voltage measurement is arranged near not overlapping with unit 2A, 2B supporting bracket 5.Thereby, it is possible to the impact in the magnetic field avoiding the electric current when battery discharge to produce.
When forming like this, common time (time normal), the voltage of each unit 2A, 2B in substrate 9 can be measured respectively.Then, when making big current flow on lead terminal due to any abnormal situation, positive wire terminal 3A, 4A one (or) another fusing.The exception of the thin type battery module usually in chamber can not judge from outside, but when positive wire terminal 3A, 4A fuse the change in voltage of substrate 9, therefore, it is possible to this exception detected.By exception being detected like this, the replacement etc. of abnormal thin type battery module suitably can be carried out corresponding to this.
Further, on substrate 9, temperature sensor 93A, the 93B (this example is thermistor) of the temperature measuring each unit 2A, 2B is respectively set.Thereby, it is possible to obtain the temperature information of each unit 2A, 2B.In addition, temperature sensor also can be embedded in above-mentioned distribution.
Further, on the top and bottom of substrate 9, connecting portion 94A, 94B of being connected in series by each substrate 9,9 of the neighbouring thin type battery module connect is provided with.This connecting portion 94A, 94B connection metal divisional plane that to be such as be on substrate 9, another is the spring connector abutting this metal divisional plane.In addition, substrate 9 is kept by upper and lower base plate bracing frame 95A, 95B.This base plate supports frame 95A, 95B clamp supporting bracket 5 betwixt, and are fixed by tapping screw.
About as above formed thin type battery module of the present invention, battery pack, by means of only by multiple for thin type battery module central combination, is installed connecting elements 7 and forms simultaneously between adjacent thin type battery module, realizes thus electrically conducting.Background technology is in this kind of battery pack, use multiple leads for connecting and bus and realize electrically conducting of battery pack, but in the present invention, as shown in aftermentioned concrete example, such leads for connecting etc. does not need.Therefore, according to battery pack of the present invention, the wire that produces when using leads for connecting etc. and connecting elements and wire interference etc. each other can be avoided, the fault that wire/bus is relevant can be avoided, even because do not need wiring space and the wiring operation of leads for connecting etc., so the change easily of simplification and the making constructed can be realized.
An example of battery pack is formed as the multiple central combination of thin type battery module by this example, prepare multiplely a connecting elements 7 to be arranged on a pole of electric power connector portions 60 (such as, positive pole) the thin type battery module of electric power in connector portions 60, relative to adjacent side (such as, downside) thin type battery module opposite side (such as, upside) thin type battery module, the upper side tabs 72A of the connecting elements 7 being installed on the thin type battery module of above-mentioned side is embedded in the downside electric power connector portions 60 of the thin type battery module of above-mentioned opposite side, and the battery pack 200 (with reference to Fig. 7) that combination has multiple thin type battery module can be formed.This battery pack 200 is connected in series by these multiple thin type battery modules and forms.
But, in the present invention, multiple for thin type battery module central combination is being formed in battery pack, connecting elements 7 is not defined in above-mentioned situation certainly relative to the mounting means of thin type battery module, and in order to distinguish side of the positive electrode and negative side, such as, make the shape of electric power connector portions and vary in size, and with this situation, each protuberance 72A of the upper and lower sides of connecting elements 7, the shape of 72B and size are also different, or utilize vertical bar component that is circular or dihedral to form connecting elements 7, and setting is suitable for this shape and the electric power connector portions of structure, can also use electric power connector portions chimeric with the structure of electric connection of connecting elements further, locking, the mode that engaging etc. are suitable.
When forming battery pack, one such as shown in Fig. 8, is provided with the support portion 201 of the battery pack 200 of receiving above-mentioned multiple thin type battery module.In this example, support portion 201 has base plate 202 and top plate portion 203, and is kept by the bar 204,204 of surrounding.At the position of base plate 202 with the thin type battery module side of top plate portion 203, be respectively arranged with two output power supply units 205,206 of side of the positive electrode and negative side.In addition, element numbers 207 is output distributions of voltage measurement.
In this example, on two output power supply units 205,206 of above-mentioned side of the positive electrode and negative side, the electric power connector portions 60 in order to install above-mentioned connecting elements 7 is provided with.Then, via above-mentioned connecting elements 7, the side of the positive electrode of thin type battery module 100,100 of above-mentioned two out-put supply portions 205,206 and above-mentioned central combination and the electric power connector portions 60 of negative side are electrically conducted respectively.
Like this, the multiple thin type battery modules 100,100 being accommodated in above-mentioned support portion 201 form battery pack 200.Then, this battery pack 200 is configured to these multiple thin type battery modules 100,100 and is connected in series and the high capacity cell formed.
Therefore, when forming battery pack 200, in each electric power connector portions 60,60 between adjacent thin type battery module 100,100 and between two output power supply units 205,206 of thin type battery module 100 and side of the positive electrode and negative side, owing to realizing electrically conducting by only simple connecting elements 7 is inserted, so there is no use multiple leads for connecting etc. as background technology, and electrically conducting of battery pack can be realized.Therefore, the wire that produces and connecting elements and wire interference etc. each other when using leads for connecting and bus can be avoided, the fault that wire/bus is relevant can be avoided, even because do not need wiring space and the wiring operation of leads for connecting etc., so the change easily of simplification and the making constructed can be realized further.
And, about the support portion 201 of the battery pack 200 of this example, at the position (upside of base plate 202 and the downside of top plate portion 203) of base plate 202 with the thin type battery module side of top plate portion 203, connecting portion 94A, 94B of being provided with aforesaid substrate 9 carry out the connection position (omitting diagram) be electrically connected.By arranging these connection positions, can obtain respectively to voltage and the temperature information of each unit 2A, 2B that each thin type battery module 100,100 measures.
About above-mentioned routine thin type battery module 100, same direction is all protruded from positive wire terminal 3A, 4A and negative wire terminal 3B, 4B both sides, and situation about upper lower unit 2A, 2B being electrically connected in parallel is that example is described, but the present invention is not limited thereto.Such as, positive wire terminal 3A, 4A and negative wire terminal 3B, 4B also can be made to protrude from rightabout.
In this case, as shown in Figure 9, in the upper positive terminal portion arranged as precedent of the one side (surface) of thin type battery module 110, and by mounted thereto for connecting elements 7, meanwhile, the opposition side of Width arranges anode connector portion, and connecting elements 7 is mounted thereon.In addition, on the another side (back side) of thin type battery module 110, with these connector portions same position places, be provided with above-mentioned identical connector portions.
Thin type the battery module described above and battery pack of its central combination is not limited to above-mentioned concrete example.Especially about thin type battery module, not only electrically being connected in parallel of unit can be carried out, also can be connected in series, and, the shape, structure, configuration etc. of the bus in thin type battery module, electric power connector portions and the shape, structure etc. of battery pack, and even as long as be applicable to the object of the present invention of the facilitation simplification of the central combination contributing to adjacent thin type battery module, suitable mode can be used.
(utilizability in industry)
The present invention is suitable for the thin type battery module driven by the vehicle movement motor of electric motor car or hybrid electric vehicle and the battery pack this thin type battery module central combination formed.
Claims (10)
1. a thin type battery module, by be accommodated in by multiple unit in chamber and these multiple cells overlaps are electrically connected and are formed, the feature of described thin type battery module is,
On the top and bottom of described chamber, the connector portions that the connecting elements that formation is electrically connected with adjacent thin type battery module will insert, inner at the described chamber adjacent with described each connector portions, arrange and form the electric power connector portions of conducting to the lead terminal of described unit
Described electric power connector portions is detachably provided with described connecting elements thereon,
Described each unit has at positive pole extended on orthogonal direction and negative wire terminal relative to cells overlap direction, the lead terminal of identical polar protruded from same direction each other simultaneously and arrange, and positive pole and negative wire terminal are protruded from same direction and arrange
The lead terminal of described identical polar is fixed to one another and is connected in each bus of positive pole use and negative pole,
The base portion of the bus both sides of described positive pole use and negative pole is configured to overlapping shape via insulating component,
Described being configured to, on the bus base portion of the both sides of overlapping shape, electric power connector portions is set.
2. thin type battery module according to claim 1, is characterized in that, connector portions and described each electric power connector portions of the top and bottom of described chamber are arranged at same position on the overlapping direction of unit.
3. thin type battery module according to claim 1, it is characterized in that, described bus has and the connecting portion of described lead terminal and described electric power connector portions, exposes to the connecting portion of major general and this lead terminal and this electric power connector portions simultaneously, utilizes insulative resin to mould surrounding.
4. thin type battery module according to claim 1, it is characterized in that, described positive pole is used and the bus both sides of negative pole have and the connecting portion of described lead terminal and described electric power connector portions, and for utilizing insulative resin to mould same configuration around.
5. thin type battery module according to claim 1, is characterized in that, arranges flat supporting bracket, this supporting bracket up and down respectively configure a unit.
6. thin type battery module according to claim 1, it is characterized in that, the position of described electric power connector portions is formed as other position being thicker than described bus, and in addition, described connecting elements has at central portion: diameter is greater than the central base of described electric power connector portions; For being installed on the position of described electric power connector portions, and be symmetricly set on the side of described central base and the protuberance of opposite side.
7. thin type battery module according to claim 1, is characterized in that, the positive wire terminal of described each unit is made up of the material then fused when the current flowing exceeding designated value,
In addition, be provided with the substrate of voltage measurement, the substrate of described voltage measurement is by the distribution be separately fixed on the positive wire terminal of each unit, be connected with the distribution being fixed on negative side.
8. thin type battery module according to claim 7, is characterized in that, on described substrate or described distribution, is provided with the temperature sensor of cell temperature measurement.
9. a battery pack, it is characterized in that, by the multiple central combination of thin type battery module according to any one of claim the 1 to 8, between adjacent thin type battery module, connecting elements be installed and form battery pack simultaneously, being connected in series the thin type battery module of these multiple central combination.
10. battery pack according to claim 9, it is characterized in that, have the support portion of the thin type battery module supporting described multiple central combination, this support portion arranges two output power supply units of side of the positive electrode and negative side, the side of the positive electrode of thin type battery module of described two out-put supply portions and described central combination and the electric power connector portions of negative side are electrically conducted respectively via described connecting elements.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-044061 | 2010-03-01 | ||
| JP2010044061 | 2010-03-01 | ||
| PCT/JP2011/055013 WO2011108680A1 (en) | 2010-03-01 | 2011-02-25 | Thin battery module and assembled battery using same |
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| Publication Number | Publication Date |
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| CN102870252A CN102870252A (en) | 2013-01-09 |
| CN102870252B true CN102870252B (en) | 2015-10-14 |
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| CN201180011561.6A Active CN102870252B (en) | 2010-03-01 | 2011-02-25 | Thin type battery module and use the battery pack of this module |
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| Country | Link |
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| JP (1) | JP5750097B2 (en) |
| CN (1) | CN102870252B (en) |
| TW (1) | TWI479723B (en) |
| WO (1) | WO2011108680A1 (en) |
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| JP5479947B2 (en) * | 2010-03-01 | 2014-04-23 | 大和製罐株式会社 | Battery case |
| JP5642616B2 (en) * | 2011-04-28 | 2014-12-17 | 大和製罐株式会社 | Battery module |
| JP5832819B2 (en) * | 2011-08-18 | 2015-12-16 | 大和製罐株式会社 | Assembled battery |
| JP2014191968A (en) * | 2013-03-27 | 2014-10-06 | Toyoda Gosei Co Ltd | Battery device |
| JP6190213B2 (en) * | 2013-08-28 | 2017-08-30 | 日立マクセル株式会社 | Battery pack |
| WO2015037439A1 (en) * | 2013-09-11 | 2015-03-19 | 日本碍子株式会社 | Battery-pack case |
| KR101686583B1 (en) * | 2013-11-29 | 2016-12-14 | 주식회사 엘지화학 | Battery Module of Cartridge Stacking Structure |
| JP6394964B2 (en) * | 2014-12-22 | 2018-09-26 | 株式会社オートネットワーク技術研究所 | Power storage module |
| CN206099077U (en) | 2016-09-30 | 2017-04-12 | 比亚迪股份有限公司 | Power supply cabinet |
| CN113540663B (en) * | 2020-03-31 | 2022-11-11 | 比亚迪股份有限公司 | Battery module and vehicle |
| KR20220012037A (en) * | 2020-07-22 | 2022-02-03 | 주식회사 엘지에너지솔루션 | Battery module having a simple connection structure between cell lead and voltage sensing member and battery pack including the same |
| KR20220012033A (en) * | 2020-07-22 | 2022-02-03 | 주식회사 엘지에너지솔루션 | Battery module having a simple connection structure between cell lead and voltage sensing member and battery pack including the same |
| JP2022135530A (en) * | 2021-03-05 | 2022-09-15 | 本田技研工業株式会社 | battery module |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2011108680A1 (en) | 2011-09-09 |
| CN102870252A (en) | 2013-01-09 |
| TWI479723B (en) | 2015-04-01 |
| JP5750097B2 (en) | 2015-07-15 |
| JPWO2011108680A1 (en) | 2013-06-27 |
| TW201205927A (en) | 2012-02-01 |
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