WO2016132405A1 - Dispositif d'alimentation électrique - Google Patents

Dispositif d'alimentation électrique Download PDF

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Publication number
WO2016132405A1
WO2016132405A1 PCT/JP2015/003407 JP2015003407W WO2016132405A1 WO 2016132405 A1 WO2016132405 A1 WO 2016132405A1 JP 2015003407 W JP2015003407 W JP 2015003407W WO 2016132405 A1 WO2016132405 A1 WO 2016132405A1
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WO
WIPO (PCT)
Prior art keywords
battery
power supply
module
supply device
cover
Prior art date
Application number
PCT/JP2015/003407
Other languages
English (en)
Japanese (ja)
Inventor
橋本　裕之
新吾 越智
達人 堀内
Original Assignee
三洋電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Publication of WO2016132405A1 publication Critical patent/WO2016132405A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H01M10/6555—Rods or plates arranged between the cells
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/227—Organic material
    • 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

Definitions

  • the present invention relates to a power supply device.
  • a power supply device that is used in a power storage system combined with a power generation device such as a solar cell and stores power generated by the power generation device is also known.
  • a chargeable / dischargeable secondary battery such as a lithium ion battery or a nickel metal hydride battery is used.
  • the battery module includes a plurality of battery cells having a wide surface, and a case including a base portion and a cover portion.
  • the base has a fixing portion for fixing to the mounting surface, and has an open structure in which at least one surface is open.
  • a plurality of battery cells are inserted from one open surface, and the base is arranged in a posture in which the wide surfaces are parallel to each other.
  • a cover part is connected with the base part in the state which inserted the some battery cell.
  • the battery cell expands due to charging / discharging and deterioration.
  • the battery cell is accommodated inside the case, so that the battery cell dimensional change can be absorbed and the battery module dimensional change can be absorbed. Can be suppressed.
  • the above-described power supply device is configured to include a case including a base portion and a cover portion.
  • the cover of the case is not directly fixed to the mounting surface, so when a relatively strong impact is applied to the power supply device, the case is damaged or the cover connected to the base is removed. There was a risk of it.
  • the present invention has been made in view of such a situation, and a main object thereof is a battery module having a configuration in which a plurality of battery cells are housed in a case formed of a pair of case bodies, and has high strength against vibration. It is providing a power supply device provided with the battery module of a structure.
  • a power supply device includes a plurality of battery modules, a pair of end plates, and a restraining member coupled to the pair of end plates.
  • the plurality of battery modules are arranged along the first direction among the first direction, the second direction, and the third direction that are three directions orthogonal to each other, and are arranged in the second direction. It is arrange
  • Each battery module includes a plurality of battery cells and a resin module case that houses the plurality of battery cells and includes at least a base portion and a cover portion.
  • the base includes an opening having an open surface that opens in the second direction, and a fixing portion that is fixed to the mounting surface on which the battery module is disposed.
  • the cover part is connected to the opening in the second direction so that a plurality of battery cells are positioned between the cover part and the base part.
  • the pair of end plates are disposed at both ends of the plurality of battery modules in the first direction.
  • the restraining member extends along the first direction, and abuts against the surfaces of the plurality of cover portions located in the second direction and the surfaces of the plurality of cover portions located in the third direction.
  • a displacement restricting portion is included.
  • the strength against vibration and impact of the module case can be improved.
  • the relative position of the cover part with respect to the base part is displaced, stress is applied to the connecting part of the cover part and the base part, but the displacement of the cover part is suppressed by the displacement restricting part of the restraining member. It is possible to prevent the relative position with respect to the base from being displaced. As a result, stress can be reduced at the connecting portion between the cover portion and the base portion, and the strength against vibration and impact of the module case can be improved.
  • FIG. 1st embodiment of this invention It is a perspective view of the power supply device in 1st embodiment of this invention. It is a perspective view of the battery module of FIG. It is a disassembled perspective view of the battery module of FIG. It is a front view of a pouch battery showing an example of a battery cell in an embodiment of the present invention. It is a front view of the pouch battery which shows another example of the battery cell in embodiment of this invention. It is a disassembled perspective view of the unit module of FIG. It is sectional drawing of the unit module of FIG. In 1st embodiment of this invention, it is sectional drawing of the power supply device provided with the exterior case. It is sectional drawing which shows the cross section from another direction of the power supply device of FIG.
  • FIG. 12 It is a perspective view of the power supply device which shows the restraint member of the modification in embodiment of this invention.
  • 2nd embodiment of this invention it is sectional drawing of the power supply device provided with the exterior case.
  • FIG. 1 shows a power supply device according to the first embodiment of the present invention.
  • FIG. 1 is a perspective view, and for convenience of explanation, a first direction Y, a second direction Z, and a third direction X that are orthogonal to each other are shown in FIG.
  • the first direction Y corresponds to the depth direction
  • the second direction Z corresponds to the height direction
  • the third direction X corresponds to the width direction.
  • the battery module 1 includes a plurality of battery modules 1, a pair of end plates 40, and a restraining member 50 coupled to the pair of end plates 40.
  • the battery module 1 has a substantially rectangular parallelepiped shape, and has a pair of opposing surfaces on both sides in the first direction Y.
  • the plurality of battery modules 1 are arranged along the first direction Y in a posture in which the opposing surfaces face each other.
  • the pair of end plates 40 are arranged at positions facing the facing surfaces of the battery module 1 located at both ends in the stacking direction of the battery modules 1.
  • the pair of end plates 40 positioned at both ends of the plurality of battery modules 1 collects the plurality of battery modules 1 via the restraining members 50 connected to the pair of end plates 40.
  • the battery module 1 includes a unit module 2 including a plurality of battery cells 10 and a resin module case 30 in which the unit module 2 is accommodated.
  • the module case 30 is configured to be dividable in the second direction Z so that the unit module 2 can be accommodated therein.
  • the module case 30 includes a base 31 having an opening 32 having at least one surface opened, and a cover 34 coupled to the opening 32, and the cover 34 is moved from the base 31 in the second direction. It can be separated into Z.
  • the unit module 2 including the plurality of battery cells 10 can be inserted into the base portion 31 from the second direction Z.
  • the unit module 2 is disposed between the base portion 31 and the cover portion 34 by connecting the cover portion 34 to the opening portion 32 with the plurality of unit modules 2 inserted into the base portion 31.
  • the battery cell 10 is a chargeable / dischargeable secondary battery. Specifically, a secondary battery such as a lithium ion battery or a nickel metal hydride battery can be used.
  • 4 and 5 are diagrams for explaining a specific configuration of the battery cell 10 described above, and illustrate a pouch battery as a typical configuration.
  • the battery cell 10 of FIGS. 4 and 5 includes an exterior body 11 formed of a deformable laminate film, a power generation element enclosed in the exterior body 11, and an electrode tab 12 connected to the power generation element.
  • the power generation element includes an electrode body and an electrolytic solution.
  • the electrode tab 12 is an output terminal of the battery cell 10 and is led out from the exterior of the exterior body 11 from the interior of the exterior body 11.
  • This type of battery cell 10 is known to have a flat wound electrode body or a laminated electrode body as an electrode body.
  • the wound electrode body is an electrode body formed in a flat shape by winding a positive electrode plate and a negative electrode plate through a separator, and then pressing them.
  • the laminated electrode body is an electrode body formed by laminating a sheet-like positive electrode plate and a negative electrode plate via a separator.
  • the structure of an electrode body should just be able to enclose an electric power generation element in the exterior body 11, and does not necessarily need to be restricted to the above-mentioned structure.
  • the laminate film is a sheet-like composite film having a five-layer structure of resin layer (polypropylene) / adhesive layer / aluminum alloy layer / adhesive layer / resin layer (polypropylene).
  • the exterior body 11 is formed of this laminate film, and has an electrode body housing space therein.
  • the battery cell 10 illustrated in FIGS. 4 and 5 includes an electrode body disposed on a single laminate film, folded the laminate film, and laminated laminate films on the sides other than the folded sides. It is formed by heat welding. 4 has a pair of electrode tabs 12 extending from one side of the outer package 11 when the laminate film is thermally welded. Further, in the battery cell of FIG. 5, one electrode tab 12 of the pair of electrode tabs 12 is extended from two sides located at both ends of the exterior body 11 when the laminate film is heat-welded. .
  • the battery cell 10 having the above configuration has a simple structure, and the outer shape of the battery cell can be made relatively small. Moreover, since the exterior body 11 is comprised with a laminate film, the exterior body 11 can be insulated with respect to the electric power generation element enclosed inside, forming the exterior body 11 with a metal. The heat dissipation of the battery cell 10 can be improved by forming the exterior body 11 with a metal. On the other hand, since the laminate film is relatively easily deformed by an external force, the stability of the shape of the exterior body 11 is low.
  • the unit module 2 includes a plurality of battery cells 10 stacked in a posture in which the wide surfaces face each other, and a holding body 20 that holds the stacked battery cells 10.
  • the holding body 20 shown in FIG. 6 is composed of a pair of U-shaped metal plates in cross section, and each metal plate has a main surface portion 20a facing the wide surface of the battery cell 10 and a flange portion 20b protruding from the main surface. And.
  • the pair of metal plates can sandwich the battery cell 10 in a space formed between the pair of metal plates by engaging or fitting the flange portions 20b. According to this structure, since the battery cell 10 is hold
  • the battery cell 10 is further provided with a heat transfer plate 21 between the plurality of battery cells 10 held by the holding body 20. According to this configuration, since the heat transfer plate 21 is disposed between adjacent battery cells 10, the battery cell 10 can be cooled by heat transfer to the heat transfer plate 21 in addition to heat transfer to the holding body 20. it can. When the number of battery cells 10 constituting the unit module 2 is large, the cooling efficiency of the battery cells 10 arranged in the central portion of the unit module 2 may be significantly reduced. This is particularly effective in such a configuration. is there.
  • a fitting portion 22 that fits with the flange portion 20 b of the holding body 20 can be formed in the lower portion of the heat transfer plate 21.
  • the fitting portion 22 is formed in the heat transfer plate 21, the heat transfer plate 21 is held by the adjacent battery cells 10 and is also fixed to the holding body 20. Deviation can be prevented.
  • the battery module 1 including a pouch battery has been described as the battery cell 10.
  • the battery cell 10 is not necessarily a pouch battery, and a configuration in which a power generation element is enclosed in a box-shaped battery case. Or a square battery.
  • a prismatic battery has a structure in which an electrode body such as a wound electrode body or a laminated electrode body and an electrolytic solution are stored in a metal battery case with a bottomed rectangular parallelepiped and the upper surface is opened, and the upper surface is sealed with a sealing plate. It has been known.
  • Such a battery cell also has a thick rectangular plate shape.
  • the battery case is in electrical contact with the electrolyte. Further, the battery case made of metal has higher rigidity than the exterior body 11 formed of a laminate film. Therefore, the battery cell 10 having the above-described configuration is characterized in that the shape of the exterior body 11 is highly stable and the exterior body 11 has a potential. Further, since the prismatic battery has a highly rigid exterior body, when the prismatic battery is adopted as the battery cell 10, the battery cell 10 is directly connected to the module case 30 without using the holding body 20. It is preferable to adopt a configuration in which the two are arranged.
  • the base portion 31 is provided with a pair of fixing portions 33 on both sides.
  • the fixing portion 33 has a through-hole through which a bolt can be inserted, and the base portion 31 can be fixed to a frame or a case having a placement surface on which the battery module is placed.
  • the fixing portion 33 has a cylindrical metal spacer, and the metal spacer is inserted into the through hole of the fixing portion 33.
  • the base 31 has the opening 32 having at least one surface opened, and the unit module 2 is inserted from the open surface of the base 31. Note that the plurality of battery cells 10 included in the unit module 2 are disposed on the base portion 31 in such a posture that the respective wide surfaces are parallel to the main surfaces of the pair of end plates.
  • the plurality of unit modules 2 are arranged on the base 31 with a gap therebetween so that a flow path for cooling air to flow between the unit modules 2 is formed.
  • the adjacent unit modules 2 can be arranged with a gap therebetween.
  • the cover part 34 can be connected to the base part 31 by a tapping screw or a locking structure. Further, the cover part 34 and the base part 31 have a blower opening for introducing cooling air into the module case 30.
  • or FIG. 3 has the introducing
  • the base 31 has a blower opening on the bottom side.
  • the cooling air is introduced from the air blowing port of the introduction part 35 located on the cover part 34 side, and the flow path is located between the plurality of unit modules 2 arranged in the module case 30. The air is exhausted from the air outlet on the base side.
  • the cooling air cools the plurality of battery cells 10 via the holding body 20 of the unit module 2 and the like while flowing through the flow path positioned between the plurality of unit modules 2 arranged in the module case 30.
  • it can also comprise so that cooling air may be introduce
  • a plurality of restraining members 50 are installed on a pair of end plates 40.
  • the plurality of restraining members 50 extend along the first direction Y that is the stacking direction of the battery modules 1.
  • the plurality of restraining members 50 are provided at positions that cover at least the corner portion on the cover portion 34 side with respect to the module case 30.
  • the restraining member 50 disposed on the cover part 34 side includes a horizontal part 50 a extending along the upper surface of the cover part 34 and a vertical part 50 b extending along the side surface of the cover part 34.
  • the restraining member 50 in FIG. 1 includes flat plate portions 50 c provided at both ends in the extending direction of the restraining member 50.
  • the flat plate portion 50 c is provided with a through hole for connecting the restraining member 50 to the end plate 40.
  • the restraining member 50 is fixed to the end plate 40 via a screw inserted through the through hole of the flat plate portion 50c.
  • the horizontal portion 50a of the restraining member 50 can regulate the displacement of the cover portion 34 in the vertical direction (second direction Z). Further, the vertical portion 50 b of the restraining member 50 can restrict the displacement of the cover portion 34 in the left-right direction (third direction X). In addition, the displacement of the cover part 34 in the extending direction (first direction Y) of the restraining member 50 is regulated by a fastening structure via the pair of end plates 40.
  • the displacement restricting portion 51 that restricts the displacement of the cover portion 34 in the second direction Z and the third direction X can be configured by the horizontal portion 50 a and the vertical portion 50 b of the restraining member 50.
  • the power supply device may include an exterior case 60 including a mounting surface on which the end plate 40 and the module case 30 of the battery module 1 are fixed. it can.
  • the exterior case 60 includes a pair of case bodies having flanges, and the flanges are fixed to each other.
  • the battery module 1 is disposed in the exterior case 60, and the case body and the base 31 of the module case 30 are fixed via the fixing portion 33 of the base 31 of the module case 30.
  • the exterior case 60 has a flow path defined therein, and cooling air flows in through a blower or the like, cools the battery module 1 disposed inside, and then is exhausted to the outside. Yes.
  • the exterior case 60 has a contact portion 61 that contacts the restraining member 50, and suppresses the displacement of the cover portion 34 in the vertical direction (second direction Z) via the restraining member 50. It has become.
  • FIG. 10 shows a power supply device according to an aspect provided with a modified restraining member 50.
  • an inflow port may be provided at a position biased with respect to the arrangement of the battery modules 1 in the outer case 60 due to space restrictions.
  • the battery module 1 arranged close to the inflow port or the outflow port has a relatively low temperature, but there is a problem that the cooling efficiency decreases as the distance from the inflow port or the outflow port increases.
  • a temperature difference occurs between the plurality of battery modules 1, there is a problem that a difference in battery characteristics occurs.
  • the air volume regulating portion 52 is provided in which the shape of the horizontal portion 50a of the restraining member 50 is formed such that the area becomes wider as the position is closer to the inflow port or the outflow port.
  • the air volume regulating portion 52 of the restraining member 50 covers the air outlet provided in the module case 30 of the battery module 1, and the air outlet of the air outlet is arranged according to the position of the battery module 1. The opening area is adjusted. According to this configuration, it is possible to reduce temperature variations among the plurality of battery modules 1 while sharing the members constituting the battery module 1 such as the module case 30.
  • the module case 30 is divided into two parts, a base 31 and a cover 34, in order to improve assemblability.
  • the module case 30 is formed of resin for weight reduction.
  • the dimensions may change due to various factors such as deformation of the member and warpage during molding, in addition to manufacturing intersection. Therefore, it is necessary to connect the base 31 and the cover part 34 with a clearance.
  • the connection between the resin members cannot be fixed with a large axial force because creep deformation increases. Therefore, simply connecting the cover part 34 and the base part 31 may cause the cover part 34 to be displaced when a relatively strong impact is applied to the module case 30.
  • the displacement of the cover portion 34 is increased, the relative position of the cover portion 34 to the base portion 31 is displaced, and there is a problem that the module case 30 is damaged due to stress applied to the connecting portion of the cover portion 34 and the base portion 31.
  • the displacement of the cover portion 34 can be suppressed by the restraining member 50 as described above. Therefore, the strength against vibration and impact can be improved.
  • the base portion 31 having the fixing portion 33 is formed of a resin like the cover portion 34, but is fixed to a metal frame or a metal case, so that through a metal spacer or the like, It can be fixed with a relatively large axial force. Therefore, since the displacement of the base 31 is smaller than the displacement of the cover portion 34, the influence on the strength against vibration and impact is small.
  • FIG. 11 is a cross-sectional view of the power supply device according to the second embodiment of the present invention.
  • cooling air is sent along the upper surface of the battery module 1.
  • the battery module 1 in FIG. 11 has heat radiation fins 23 a located between the outer case 60 and the module case 30.
  • the power supply device includes a unit module 2 of a modification shown in FIG.
  • the unit module in FIG. 13 is provided with a cooling unit 23 having heat radiation fins 23a in order to improve the cooling efficiency of the heat transfer plate 21.
  • the holding body 20 has an opening formed at a position corresponding to the cooling part 23 of the heat transfer plate 21, and the radiating fins 23 a of the cooling part 23 are formed from the opening of the holding body 20. It is designed to protrude. By providing the heat radiating fins 23a on the heat transfer plate 21, the heat transferred from the battery cells 10 can be efficiently radiated to the outside.
  • the battery module 1 in FIG. 12 includes a modified unit module 2 including a heat transfer plate 21 having the cooling unit 23 illustrated in FIG.
  • the battery module 1 of this modification includes a cover portion 34 having an opening on the upper surface.
  • the opening of the cover part 34 is provided at a position corresponding to the cooling part 23 of the unit module 2 of FIG. 13 arranged in the base part 31, and the cooling part 23 can be led out of the module case 30 from the opening. ing.
  • the power supply device blows cooling air along the upper surface of the cover portion 34 of the battery module 1, so that the battery cell 10 housed in the module case 30 It can cool via the heat exchanger plate 21 which has 23a.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Afin d'améliorer sa résistance aux vibrations et aux chocs, le dispositif d'alimentation électrique de l'invention est équipé d'une pluralité de modules de batterie (1), d'une paire de plaques d'extrémité (40), et d'un élément restriction (50) lié aux plaques d'extrémité (40). Les modules de batterie (1) sont disposés suivant une première direction (Y), sur une face montage perpendiculaire à une seconde direction (Z). Les modules de batterie (1) contiennent des enveloppes de module (30) stockant une pluralité de cellules de batterie (10), et constituées au moins par une partie base (31) et une partie couvercle (34). La partie base (31) possède une partie ouverture (32) s'ouvrant dans la seconde direction (Z), et une partie fixe (33) fixée sur la face montage. La partie couvercle (34) est liée à la partie ouverture (32) de sorte que les cellules de batterie (10) sont positionnées entre la partie base (31). Les plaques d'extrémité (40) sont disposées aux deux extrémités des modules de batterie (1) dans la première direction (Y). L'élément restriction (50) contient une partie régulation de déplacement (51) qui vient en contact d'une face de la partie couvercle (34) se prolongeant suivant la première direction (Y), et positionnée dans la seconde direction (Z), et d'une face de la partie couvercle (34) positionnée dans une troisième direction (X).
PCT/JP2015/003407 2015-02-16 2015-07-07 Dispositif d'alimentation électrique WO2016132405A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015027160 2015-02-16
JP2015-027160 2015-02-16

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JP2012160347A (ja) * 2011-01-31 2012-08-23 Sanyo Electric Co Ltd 電源装置及び電源装置を備える車両
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006236826A (ja) * 2005-02-25 2006-09-07 Toyota Motor Corp 電池パック
JP2008277049A (ja) * 2007-04-26 2008-11-13 Toyota Motor Corp 電源装置
JP2010086887A (ja) * 2008-10-02 2010-04-15 Toshiba Corp バッテリモジュール
JP2013505535A (ja) * 2009-09-17 2013-02-14 エルジー・ケム・リミテッド 新規の構造を有する放熱部材を含んでいるバッテリーモジュール並びに中型又は大型のバッテリーパック
JP2012138315A (ja) * 2010-12-28 2012-07-19 Hitachi Ltd リチウムイオン電池モジュール
JP2012160347A (ja) * 2011-01-31 2012-08-23 Sanyo Electric Co Ltd 電源装置及び電源装置を備える車両
JP2015504574A (ja) * 2012-01-26 2015-02-12 エルジー・ケム・リミテッド 安全性の向上した電池モジュール及びこれを含む電池パック
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WO2013183945A1 (fr) * 2012-06-07 2013-12-12 주식회사 엘지화학 Module de batterie à structure à stabilité améliorée et à efficacité de refroidissement élevée
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