WO2013161654A1 - Dispositif d'alimentation électrique, véhicule comprenant le dispositif d'alimentation électrique, et dispositif de stockage d'électricité - Google Patents

Dispositif d'alimentation électrique, véhicule comprenant le dispositif d'alimentation électrique, et dispositif de stockage d'électricité Download PDF

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Publication number
WO2013161654A1
WO2013161654A1 PCT/JP2013/061456 JP2013061456W WO2013161654A1 WO 2013161654 A1 WO2013161654 A1 WO 2013161654A1 JP 2013061456 W JP2013061456 W JP 2013061456W WO 2013161654 A1 WO2013161654 A1 WO 2013161654A1
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WO
WIPO (PCT)
Prior art keywords
power supply
supply device
battery block
battery
cooling plate
Prior art date
Application number
PCT/JP2013/061456
Other languages
English (en)
Japanese (ja)
Inventor
一広 藤井
吉田　哲也
吉村　司
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 WO2013161654A1 publication Critical patent/WO2013161654A1/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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric 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
    • H01M10/61—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
    • H01M10/64—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
    • H01M10/6554—Rods or plates
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/278—Organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a power supply device in which a plurality of batteries are connected, a vehicle including the power supply device, and a power storage device, and in particular, a power source for a motor that is mounted on an electric vehicle such as a hybrid vehicle, a fuel cell vehicle, an electric vehicle, and an electric motorcycle.
  • the present invention relates to a power supply device that supplies power to a power source for large currents used for power storage devices for home use, factories, and the like, a vehicle including the power supply device, and a power storage device.
  • a power supply system that uses a large-scale power supply device that combines a plurality of battery cells for driving a vehicle or for storing electricity has become widespread.
  • high output and large capacity are demanded, and there is a tendency to increase the number of battery cells to be used.
  • a battery cell generates heat when charged and discharged with a large current.
  • the amount of heat generation also increases. Therefore, a heat dissipation mechanism that efficiently conducts heat and dissipates heat dissipation of the battery cells is required.
  • an air cooling method in which cooling air is blown to the battery cells is used (see, for example, Patent Document 1).
  • a cooling pipe supplied and circulated with refrigerant is brought into contact with the battery cell and directly cooled by heat exchange.
  • this cooling method compared to an air-cooling type cooling method in which cooling air is blown into the gap between adjacent battery cells, the heat of the battery cells can be taken more efficiently by heat exchange using a refrigerant, but it is high.
  • the temperature may drop below the dew point, moisture in the air may be cooled and condensation may occur on the surface of the battery cell. If such condensation occurs, unintended energization may occur or corrosion may occur.
  • a main object of the present invention is to provide a power supply device capable of realizing a waterproof structure with a simple configuration, a vehicle including the power supply device, and a power storage device.
  • a plurality of rectangular secondary battery cells having a width larger than the thickness, at least a battery block connected in series,
  • a power supply device comprising a first surface constituting an outer surface of the battery block and a cooling plate for contacting and cooling the outer surface of the battery block, and further, a surface of the battery block other than the first surface
  • a flexible waterproof cover provided with a cover opening so as to cover the cover is provided, and the cover opening can be closed in a waterproof state by the cooling plate.
  • a waterproof structure can be realized by covering the outer periphery of the battery block with a waterproof cover.
  • the waterproof cover can be covered along the outer shape of the battery block, so that a situation in which the outer shape of the power supply device becomes large can be avoided.
  • closing the opening of the waterproof cover with the cooling plate it can be used not only for cooling the secondary battery cell but also for waterproofing the battery block.
  • the waterproof cover extends from the edge of the first surface so as to cover a certain region from the edge of the first surface of the battery block.
  • the battery block can be fixed to the cooling plate in a state where the first covering portion is sandwiched between the battery block and the cooling plate.
  • the battery block is fixed to the cooling plate using screws, and a screw hole for inserting the screws is provided in the first covering portion.
  • a seal washer can be added to the screw.
  • a waterproof structure can be achieved by avoiding water leakage at the joint surface between the battery block and the cooling plate.
  • the battery pack further includes an output terminal unit for taking out the output of the battery block in which the secondary battery cells are connected in series, and the waterproof cover includes the output terminal unit and the output terminal unit.
  • An output hole is opened at a corresponding position, and a seal washer can be disposed in the output hole.
  • the power of the battery block can be taken out of the waterproof cover without impairing the waterproof function.
  • the power supply device further includes a bind bar for fastening the secondary battery cells in a stacked state, and the bind bar is different from the first surface of the battery block.
  • the secondary battery cell is disposed on the second surface, and the secondary battery cell faces the second surface and includes a safety valve for releasing the internal gas to the outside when the internal pressure of the secondary battery cell rises.
  • the power supply device further includes a gas duct communicated with the safety valve, and an exhaust port piece fixed to an end of the gas duct and for sending the gas introduced into the gas duct,
  • the bind bar may be provided with a duct connection hole into which the exhaust piece is inserted while the battery block is covered with the waterproof cover.
  • the waterproof cover can be configured to be detachable from the battery block.
  • the above configuration makes it possible to add a waterproof function as an option to the battery block.
  • a waterproof function by adding a waterproof cover to a power supply device that does not have a conventional waterproof function, and most of the manufacturing process is shared with the conventional power supply device manufacturing process. It becomes possible to add a waterproof function as it is.
  • the waterproof cover can be made of a rubber-like elastic body or resin.
  • the cooling plate can be a solid metal plate.
  • cooling can be achieved with a simple configuration using a metal plate as a heat sink.
  • the cooling plate can be a metal plate provided with a refrigerant circulation mechanism inside.
  • the battery block can be efficiently cooled by heat exchange of the refrigerant
  • the power supply device described above can be provided.
  • the power storage device of the eleventh aspect the power supply device described above can be provided.
  • FIG. 2 is a vertical sectional view taken along line VIII-VIII in FIG. It is an expanded sectional view of FIG. FIG.
  • FIG. 2 is a vertical sectional view taken along line XX in FIG. 1. It is a vertical sectional view showing a state where the gas duct is removed from FIG.
  • FIG. 2 is a vertical sectional view taken along line XII-XII in FIG.
  • FIG. 4 is a vertical sectional view taken along line XIV-XIV in FIG. 1.
  • FIG. 5 is an enlarged cross-sectional view showing a state where inter-block connection bus bars are connected along the XV-XV line in FIG. 1. It is an expansion exploded sectional view showing the neighborhood of the output hole concerning a modification.
  • the embodiments described below exemplify a power supply device, a vehicle including the power supply device, and a power storage device for embodying the technical idea of the present invention, and the present invention includes the power supply device and the power supply device.
  • the vehicle and the power storage device are not specified as follows.
  • the dimensions, materials, shapes, relative arrangements, and the like of the constituent members described in the embodiments are not intended to limit the scope of the present invention only to the description unless otherwise specified. It is just an example. Note that the size, positional relationship, and the like of the members shown in each drawing may be exaggerated for clarity of explanation.
  • each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and the plurality of elements are shared by one member, and conversely, the function of one member is constituted by a plurality of members. It can also be realized by sharing.
  • the contents described in some examples and embodiments may be used in other examples and embodiments.
  • FIG. 1 is a perspective view showing a power supply device 100 according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view showing a state in which the cooling plate 40 is removed from the power supply device 100 of FIG.
  • FIG. 4 is an exploded perspective view of FIG. 2 as viewed obliquely from below
  • FIG. 4 is an exploded perspective view of the battery block 10 of FIG. 2 with the waterproof cover 30 removed
  • FIG. 5 is an exploded perspective view of FIG. 6 is an exploded perspective view showing a state in which the top cover 13 is removed from the battery block 10 of FIG. 4, FIG.
  • FIG. 7 is a further exploded perspective view of the battery block 10 of FIG. 6, and FIG. 9 is an enlarged cross-sectional view of FIG. 8, FIG. 10 is a vertical cross-sectional view taken along line XX of FIG. 1, and FIG. 11 is a vertical cross-sectional view showing a state where the gas duct is removed from FIG. Show.
  • the power supply device 100 shown in these drawings includes a battery block 10 and a cooling plate 40.
  • the battery block 10 has a plurality of secondary battery cells 1 stacked and connected in series.
  • the battery block 10 is box-shaped as shown in FIGS. 1 to 3, and its periphery is covered with a waterproof block, and a cooling plate 40 is in contact with the bottom surface (first surface).
  • the cooling plate 40 is a member for bringing the bottom surface of the battery block 10 into contact with the heat conduction state and cooling it. (Battery block 10)
  • the battery block 10 is configured by stacking a plurality of secondary battery cells 1 as shown in FIGS. Between the secondary battery cells 1, an insulating member for insulating them is interposed.
  • a sheet-like separator 7 can be used as the insulating member.
  • the separator 7 is made of a resin having excellent insulating properties. Further, if necessary, the separator can cover and insulate not only the main surface of the battery block but also the side surface.
  • the surface of the secondary battery cell can be covered with an insulating film.
  • a heat shrinkable tube made of PET can be suitably used.
  • the outer can of the secondary battery cell is not made of metal but made of resin, such an insulating member can be made unnecessary.
  • end plates 2 are respectively disposed on end surfaces of the battery stack in which the secondary battery cells 1 are stacked.
  • the end plate 2 is preferably made of metal having excellent strength.
  • the end plates 2 are fastened together by a bind bar 4.
  • a through screw hole 3 for inserting the through screw 6 is opened through the upper and lower surfaces of the end plate 2.
  • the penetration screw 6 can be inserted into the penetration screw hole 3 from the upper surface of the end plate 2, and the battery block 10 can be reliably fixed to the cooling plate 40 at the four corners.
  • screw holes 42 for fixing the through screws 6 are opened at corresponding positions of the four corners of the cooling plate 40.
  • the cooling plate 40 is fixed not only through the four through-screws 6 at the corners, but also by adding three bolts or screws in the length direction and one more bolt or screw in the width direction. It is fixed at 2t. Furthermore, the waterproofness between the cooling plate 40 and the first covering portion 34 can be improved by interposing a first covering portion 34 having elasticity described later in these fixed portions. (Bind bar 4)
  • the bind bar 4 can use a plate material obtained by bending a metal plate into a U-shape in cross-sectional view.
  • the bind bar 4 is disposed on a second surface different from the first surface of the battery block 10 on which the cooling plate 40 is disposed. 4 to 8, the upper surface (second surface) of the battery stack is the first bind bar 4A, the upper edge of the side surface is the second bind bar 4B, and the lower end edge of the side surface is the third bind bar 4C. And that's it. (First bind bar 4A)
  • an insulating positioning cover 16 is disposed on the upper surface of the battery stack as shown in the exploded perspective view of FIG.
  • the positioning cover 16 insulates the metal first bind bar 4A from the battery stack and positions the bus bar 8 that electrically connects each secondary battery cell 1. For this reason, the positioning cover 16 is formed with a step at a position where the adjacent secondary battery cells 1 can be electrically connected to each other by the bus bar 8, and the bus bar 8 can be positioned by arranging the bus bar 8 at this step. Further, in the center of the positioning cover 16, a gas discharge hole 17 is opened at a position corresponding to the safety valve of each secondary battery cell 1.
  • the upper duct 14 is arranged at substantially the center of the upper surface of the positioning cover 16 to constitute a gas duct, and the gas discharged from the safety valve of the secondary battery cell 1 can be introduced into the upper duct 14 through the positioning cover 16. (Second bind bar 4B)
  • the second bind bar 4B fastens the battery stack such that the upper edge of the battery stack, that is, the corner of the battery stack covers the upper surface and the side surface.
  • the second bind bar 4B is also fixed to the end plate 2 by screwing.
  • the positioning cover 16 can be fixed by pressing the edge of the positioning cover 16 on the upper surface side of the second bind bar 4B.
  • the bind bar 4 not only fixes the end plate 2 that holds the battery stack from both sides, but the first bind bar 4A is also used for fixing the gas duct, and the second bind bar 4B is also used for fixing the positioning cover 16.
  • the fixing structure can be simplified.
  • the third bind bar 4C is fixed to the end plate 2 by screwing so as to cover the bottom surface and the side surface at the corner of the lower end edge of the battery stack, and fastens the battery stack.
  • screwing is used to fix the bind bar 4 and the end plate 2
  • another structure for example, a slit opened in the end plate 2 is bent into an L shape.
  • a configuration such as inserting a bind bar may be employed as appropriate.
  • the outer can that constitutes the outer shape thereof has a rectangular shape that is thinner than the width.
  • the sealing plate that closes the outer can is provided with positive and negative electrode terminals, and a safety valve is provided between the electrode terminals.
  • the safety valve is configured to open when the internal pressure of the outer can rises to a predetermined value or more, and to release the internal gas. The increase in the internal pressure of the outer can can be stopped by opening the safety valve.
  • the secondary battery cell 1 is a rechargeable secondary battery such as a lithium ion secondary battery, a nickel-hydrogen battery, or a nickel-cadmium battery.
  • the secondary battery cell used in the present invention may be a square or other shape laminated battery cell in which the outer package is covered with a laminate material. (Bus bar 8)
  • the electrode terminals of the adjacent secondary battery cells 1 are connected in series by the bus bar 8.
  • the bus bar 8 is made of a metal plate having excellent conductivity. Further, from the bus bar 8 positioned at the edge of the battery stack, the high voltage output of the battery stack connected in series is taken out and connected to a high voltage output terminal. Moreover, in order to detect the cell voltage of each secondary battery cell 1, each bus bar 8 is connected to the circuit board 20 via a lead wire or the like. For this reason, each bus bar 8 is provided with a connecting portion for connecting a lead wire or the like. Here, the lead connection portion 8b protrudes from the side surface of the bus bar 8, and an opening for fixing the lead wire is provided. In addition, in this example, although each secondary battery cell 1 is connected in series, it cannot be overemphasized that parallel connection may be included. (Circuit board 20)
  • a circuit board 20 on which an electronic circuit such as a monitoring circuit for monitoring the state of the secondary battery cell 1 is mounted is disposed on the upper surface of the battery stack.
  • the circuit board 20 is electrically connected to the secondary battery cell 1.
  • a harness for outputting a signal generated by an electronic circuit mounted on the circuit board 20 to the outside can be connected.
  • a harness cover 22 for pulling out the harness to the outside is provided.
  • the circuit board 20 is disposed on the upper surface of the positioning cover 16. With the circuit board 20 fixed to the upper surface of the positioning cover 16, the upper surface of the battery stack is further covered with the upper surface cover 13.
  • the upper surface cover 13 is a member for waterproofing the upper surface of the battery stack, and is made of an insulating member. (Gas duct)
  • a gas duct is arrange
  • a gas duct is configured by joining an upper duct 14 whose bottom surface side is opened and a positioning cover 16.
  • a circuit board 20 is fixed to the upper surface of the gas duct via a boss 4a protruding from the upper surface of the central first bind bar 4A. As a result, the circuit board 20 is disposed on the upper surface of the positioning cover 16.
  • a plurality of gas discharge holes 17 opened in correspondence with the positions of the safety valves of the respective secondary battery cells 1 are provided in the center of the positioning cover 16, and further recessed so as to surround these gas discharge holes 17.
  • an exhaust port piece 24 for exhausting gas is provided at one end of the upper duct 14.
  • the gas guided to the gas duct can be discharged to the outside through the gas discharge pipe.
  • a seal member such as a seal washer can be added to the exhaust port piece 24, and exhaust gas can be sent to the outside while maintaining a waterproof function.
  • the exhaust piece 24 is connected to a piece connecting hole opened in the first bind bar 4A (details of the waterproof structure will be described later).
  • the battery block 10 is configured by fixing the positioning cover 16, the upper duct 14, and the like on the upper surface of the battery stack.
  • a cooling plate 40 is disposed on the bottom surface of the battery block 10.
  • the cooling plate 40 is brought into contact with the bottom surface of the battery block 10 in a heat conducting state to cool it.
  • the cooling plate 40 is a solid metal plate excellent in heat dissipation. If necessary, a heat radiating fin or the like can be provided.
  • the cooling plate 40 can also circulate a refrigerant
  • the 16 has four battery stacks 46 arranged on the top surface of the cooling plate 40B.
  • the cooling plate 40B is disposed in a thermally coupled state to the secondary battery cells 1 constituting the battery stack 46.
  • the cooling plate 40 ⁇ / b> B is provided with a refrigerant pipe, and the refrigerant pipe is connected to the cooling mechanism 44.
  • the power supply device 200 can effectively cool the battery stack 46 directly by bringing the battery stack 46 into contact with the cooling plate 40B. Further, not only the battery stack, but also, for example, each member disposed on the end face of the battery stack can be cooled together.
  • a flexible sheet material such as a heat conductive sheet can be interposed between the battery block and the cooling plate.
  • the heat conductive sheet is preferably made of a material that is insulative and excellent in heat conduction, and more preferably has a certain degree of elasticity. Examples of such a material include acrylic, urethane, epoxy, and silicone resins.
  • the battery block and the cooling plate are electrically insulated.
  • the outer can of the secondary battery cell is made of metal and the cooling plate is made of metal, it is necessary to insulate so as not to conduct at the bottom surface of the square secondary battery cell.
  • the surface of the outer can is covered and insulated with a heat-shrinkable tube or the like, and in order to further improve the insulation, an insulating heat conductive sheet is interposed to enhance safety and reliability. Moreover, it can replace with a heat conductive sheet and can also use a heat conductive paste. Furthermore, an additional insulating film can be interposed in order to reliably maintain the insulating property.
  • the cooling pipe can be made of an insulating material. When sufficient insulation is achieved in this way, the heat conductive sheet or the like may be omitted. Moreover, by giving elasticity to the heat conductive sheet, the surface of the heat conductive sheet is elastically deformed, and there is no gap at the contact surface between the battery stack and the cooling plate, so that the thermal coupling state can be improved satisfactorily.
  • the cooling plate 40 is disposed on the bottom surface side of the battery block 10.
  • the battery block 10 is covered with a waterproof cover 30 around the periphery of the battery block 10.
  • the waterproof cover 30 covers the surface of the battery block 10 other than the bottom surface.
  • the waterproof cover 30 is made of a flexible member, and has a cover opening 32 on the bottom surface. Thereby, the cover opening 32 is expanded and the battery block 10 can be inserted from here.
  • the inner shape of the waterproof cover 30 is formed to match the outer shape of the battery block 10. As a result, the outer shape of the battery block 10 covered with the waterproof cover 30 only needs to be increased in volume by the thickness of the waterproof cover 30, and avoids an increase in appearance compared to a configuration in which the battery block 10 is housed in a metal waterproof case. it can.
  • an elastic rubber-like elastic body or resin can be used as a material constituting the waterproof cover 30, as a material constituting the waterproof cover 30, an elastic rubber-like elastic body or resin can be used.
  • a rubber-like elastic body is used for the waterproof cover 30, silicone rubber, EPDM, or the like can be used.
  • resin for the waterproof cover 30 flexible resin, such as TPE and PVC, can be utilized.
  • the cover opening 32 is closed in a waterproof state by the cooling plate 40.
  • the waterproof cover 30 has a first covering portion 34 extended from the edge of the first surface so as to cover a certain region from the edge of the bottom surface of the battery block 10.
  • the first covering portion 34 projects from the outer periphery into a frame shape on the bottom surface of the waterproof cover 30.
  • the cover opening 32 of the waterproof cover 30 has a smaller opening area than the bottom surface of the battery block 10 by the amount of the first covering portion 34 thus overhanging.
  • the battery block 10 covered with the waterproof cover 30 is cooled in a state where the first covering portion 34 is sandwiched between the battery block 10 and the cooling plate 40 as shown in the cross-sectional views of FIGS. It is fixed to the plate 40.
  • the interface between the battery block 10 and the cooling plate 40 is sealed by the elasticity of the first covering portion 34, and waterproofing at this portion is achieved.
  • Threading is preferably used for fixing the battery block 10 and the cooling plate 40.
  • the four corners of the battery block 10 are inserted from the upper surface of the end plate 2 using the through screws 6, and are screwed with nuts from the back side of the cooling plate 40.
  • a seal washer 50 having a sealing (sealing) function is preferably interposed.
  • the seal washer 50 is interposed between the screw head of the through screw 6 and the waterproof cover 30 and between the nut and the cooling plate 40, respectively. Accordingly, it is possible to prevent water from entering the screw hole while having a simple configuration, and to realize the waterproof function of the power supply device that is excellent in reliability over a long period of time.
  • the seal washer may be a separate member, or may be added to a through screw or nut in advance. In this case, the trouble of inserting the seal washer at the time of assembly can be saved.
  • a screw hole for inserting the through screw 6 is provided in the upper surface of the waterproof cover 30 and the first covering portion 34.
  • the battery block 10 can be fixed to the cooling plate 40 with the waterproof cover 30 covered as shown in FIG. (Output terminal section 28)
  • the battery block 10 includes an output terminal unit 28 for taking out a high voltage output in which the secondary battery cells 1 are connected in series.
  • the waterproof cover 30 has an output hole 36 at a position corresponding to the output terminal portion 28 so that the output can be taken out with the waterproof cover 30 covered, that is, while maintaining the waterproof structure.
  • a seal washer 50 can also be used for the output hole 36.
  • the output terminal portion 28 is formed in a cylindrical shape so as to coincide with the opening of the seal washer 50, and a tapped copper sleeve is disposed inside the output terminal portion 28. Thereby, a terminal can be screwed into an output terminal and a high voltage output can be electrically connected. (Block connection bus bar 9)
  • an inter-block connection bus bar 9 for connecting the battery blocks 10 can be provided.
  • a spacer nut 29 is disposed in the output hole 36 and the sleeve is exposed to the outside through the output hole 36.
  • the bus bar 8 at the edge where the secondary battery cells 1 are connected in series is fixed to the spacer nut 29 inside the waterproof cover 30.
  • the bolt 38 is inserted and fixed to the sleeve of the spacer nut 29 with the inter-block connection bus bar 9 interposed. At this time, a waterproof structure is secured by disposing the seal washer 50 between the inter-block connection bus bar 9 and the bolt 38.
  • a protrusion 36B on the edge of the hole opened in the waterproof cover 30, such as the output hole 36, as shown in FIG. 15B.
  • the exhaust hole 26 is similarly opened in the waterproof cover 30 and the exhaust hole 26 is waterproofed using a seal washer 50.
  • a duct connection hole 25 is provided on the end face of the first bind bar 4 ⁇ / b> A so as to protrude upward.
  • the duct connection hole 25 is opened at a position matching the exhaust hole 26 in a state where the battery block 10 is covered with the waterproof cover 30. Then, from this state, as shown in the cross-sectional view of FIG. 9, the exhaust port piece 24 is screwed into the duct connection hole 25 so that the gas duct is maintained through the exhaust port piece 24 and the external gas discharge pipe and the waterproof structure. It can be connected as it is.
  • the waterproof cover 30 can be detachable from the battery block 10.
  • the waterproof structure can be added without greatly changing the specifications of the existing power supply device by enabling the mounting to the existing battery block 10.
  • the seal washer 50 can be used not only for fixing the battery block 10 and the cooling plate 40 but also for fixing other members.
  • it can be used for a fixing bolt or a fixing nut for a vehicle.
  • the cooling plate is a part of the vehicle, such as a vehicle chassis, it is possible to attach various parts without impairing the waterproof function at the fixed portion to the vehicle.
  • the battery block 10 covers the periphery other than the bottom surface with the waterproof cover 30, and the bottom surface not covered with the waterproof cover 30 can be blocked with the cooling plate 40 in a waterproof state.
  • the cooling plate 40 that needs to be in a thermally coupled state with the battery block 10 for cooling the battery block 10 can be used for closing the cover opening 32. That is, since the battery block can be used as a member necessary for achieving the waterproof structure of the battery block, the waterproof structure of the battery block can be realized inexpensively and simply.
  • the surface necessary for heat dissipation can be brought into contact with the cooling plate in a thermally coupled state while achieving a waterproof structure of the battery block, so that the periphery of the battery block is stored in a waterproof case.
  • the heat dissipation mechanism is not hindered.
  • the above power supply apparatus can be used as a vehicle-mounted power supply.
  • a vehicle equipped with a power supply device an electric vehicle such as a hybrid vehicle or a plug-in hybrid vehicle that runs with both an engine and a motor, or an electric vehicle that runs only with a motor can be used, and is used as a power source for these vehicles. . (Power supply for hybrid vehicles)
  • FIG. 17 shows an example in which a power supply device is mounted on a hybrid vehicle that runs with both an engine and a motor.
  • a vehicle HV equipped with the power supply device shown in this figure includes an engine 96 and a travel motor 93 that travel the vehicle HV, a power supply device 100 that supplies power to the motor 93, and a generator that charges a battery of the power supply device 100.
  • the power supply apparatus 100 is connected to a motor 93 and a generator 94 via a DC / AC inverter 95.
  • the vehicle HV travels by both the motor 93 and the engine 96 while charging / discharging the battery of the power supply device 100.
  • the motor 93 is driven to drive the vehicle when the engine efficiency is low, for example, during acceleration or low-speed driving.
  • the motor 93 is driven by power supplied from the power supply device 100.
  • the generator 94 is driven by the engine 96 or is driven by regenerative braking when the vehicle is braked to charge the battery of the power supply device 100. (Power
  • FIG. 18 shows an example in which a power supply device is mounted on an electric vehicle that runs only with a motor.
  • a vehicle EV equipped with the power supply device shown in this figure includes a traveling motor 93 for traveling the vehicle EV, a power supply device 100 that supplies power to the motor 93, and a generator 94 that charges a battery of the power supply device 100.
  • the motor 93 is driven by power supplied from the power supply device 100.
  • the generator 94 is driven by energy when regeneratively braking the vehicle EV and charges the battery of the power supply device 100. (Power storage device for power storage)
  • this power supply device can be used not only as a power source for a moving body but also as a stationary power storage facility.
  • a power source for home and factory use a power supply system that is charged with sunlight or midnight power and discharged when necessary, or a streetlight power supply that charges sunlight during the day and discharges at night, or during a power outage It can also be used as a backup power source for driving signals.
  • FIG. The power supply apparatus 100 shown in this figure forms a battery unit 82 by connecting a plurality of battery packs 81 in a unit shape.
  • Each battery pack 81 has a plurality of prismatic battery cells 1 connected in series and / or in parallel.
  • Each battery pack 81 is controlled by a power controller 84.
  • the power supply apparatus 100 drives the load LD after charging the battery unit 82 with the charging power supply CP. For this reason, the power supply apparatus 100 includes a charging mode and a discharging mode.
  • the load LD and the charging power source CP are connected to the power supply device 100 via the discharging switch DS and the charging switch CS, respectively.
  • ON / OFF of the discharge switch DS and the charge switch CS is switched by the power supply controller 84 of the power supply apparatus 100.
  • the power supply controller 84 switches the charging switch CS to ON and the discharging switch DS to OFF to permit charging from the charging power supply CP to the power supply apparatus 100.
  • the power controller 84 turns off the charging switch CS and turns on the discharging switch DS to discharge.
  • the mode is switched to permit discharge from the power supply apparatus 100 to the load LD.
  • the charge switch CS can be turned on and the discharge switch DS can be turned on to supply power to the load LD and charge the power supply device 100 at the same time.
  • the load LD driven by the power supply device 100 is connected to the power supply device 100 via the discharge switch DS.
  • the power supply controller 84 switches the discharge switch DS to ON, connects to the load LD, and drives the load LD with the power from the power supply apparatus 100.
  • the discharge switch DS a switching element such as an FET can be used. ON / OFF of the discharge switch DS is controlled by the power supply controller 84 of the power supply apparatus 100.
  • the power controller 84 also includes a communication interface for communicating with external devices. In the example of FIG. 19, the host device HT is connected in accordance with an existing communication protocol such as UART or RS-232C. Further, if necessary, a user interface for the user to operate the power supply system can be provided.
  • Each battery pack 81 includes a signal terminal and a power supply terminal.
  • the signal terminals include a pack input / output terminal DI, a pack abnormality output terminal DA, and a pack connection terminal DO.
  • the pack input / output terminal DI is a terminal for inputting / outputting signals from other pack batteries and the power supply controller 84
  • the pack connection terminal DO is for inputting / outputting signals to / from other pack batteries which are child packs.
  • the pack abnormality output terminal DA is a terminal for outputting the abnormality of the battery pack to the outside.
  • the power supply terminal BR> Q is a terminal for connecting the battery packs 81 in series and in parallel.
  • the battery units 82 are connected to the output line OL via the parallel connection switch 85 and are connected in parallel to each other.
  • the power supply device, the vehicle including the power supply device, and the power storage device according to the present invention are preferably used as a power supply device for a plug-in hybrid electric vehicle, a hybrid electric vehicle, an electric vehicle, or the like that can switch between the EV traveling mode and the HEV traveling mode.
  • a backup power supply device that can be mounted on a rack of a computer server, a backup power supply device for a wireless base station such as a mobile phone, a power storage device for home use and a factory, a power supply for a street light, etc.
  • it can be used as appropriate for applications such as a backup power source such as a traffic light.

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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)
  • Aviation & Aerospace Engineering (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

La présente invention vise à mettre en œuvre une structure étanche à l'eau qui utilise une configuration simple tout en maintenant une performance de dissipation thermique. A cet effet, l'invention concerne un dispositif d'alimentation électrique (100) comprenant les éléments suivants : un bloc-batterie (10) dans lequel une pluralité de cellules de batterie secondaire rectangulaires (1) sont plus larges qu'elles sont épaisses et sont connectées au moins en série ; une plaque de refroidissement (40) qui est placée en contact de conduction thermique avec, et refroidit, une première surface qui forme une partie de la surface externe du bloc-batterie (10) ; et un couvercle flexible étanche à l'eau (30). La plaque de refroidissement (40) ferme une ouverture du couvercle (32) de manière étanche à l'eau.
PCT/JP2013/061456 2012-04-25 2013-04-18 Dispositif d'alimentation électrique, véhicule comprenant le dispositif d'alimentation électrique, et dispositif de stockage d'électricité WO2013161654A1 (fr)

Applications Claiming Priority (2)

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JP2012100315A JP2013229182A (ja) 2012-04-25 2012-04-25 電源装置、電源装置を備える車両及び蓄電装置
JP2012-100315 2012-04-25

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WO2013161654A1 true WO2013161654A1 (fr) 2013-10-31

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JP2016219243A (ja) * 2015-05-20 2016-12-22 株式会社豊田自動織機 電池モジュール
CN114207911A (zh) * 2019-08-03 2022-03-18 三洋电机株式会社 电源装置和具有该电源装置的电动车辆以及蓄电装置
CN114300781A (zh) * 2021-12-30 2022-04-08 常州众信联合汽车机械制造有限公司 一种新能源汽车用电池壳体
US20220115728A1 (en) * 2020-10-12 2022-04-14 Wings Ev Private Limited Battery pack assembly

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JP5708784B2 (ja) 2013-07-04 2015-04-30 株式会社豊田自動織機 電池パック
JP6028742B2 (ja) * 2014-01-22 2016-11-16 株式会社豊田自動織機 電池モジュール
JP2015195150A (ja) * 2014-03-31 2015-11-05 株式会社Ｇｓユアサ 蓄電装置
JP6242296B2 (ja) * 2014-05-30 2017-12-06 ダイキョーニシカワ株式会社 電池モジュール
KR101455035B1 (ko) * 2014-07-28 2014-11-04 대한민국(육군참모총장) 이차전지팩이 내장된 휴대용 전원공급장치
KR101657394B1 (ko) * 2015-02-03 2016-09-13 삼성에스디아이 주식회사 배터리 모듈
JP6511279B2 (ja) * 2015-02-05 2019-05-15 本田技研工業株式会社 バッテリユニット
KR102314041B1 (ko) 2015-03-12 2021-10-18 삼성에스디아이 주식회사 베터리 팩
JP2016201186A (ja) * 2015-04-07 2016-12-01 株式会社東芝 電池モジュール
JP6821556B2 (ja) * 2015-04-28 2021-01-27 三洋電機株式会社 電源装置及びこれを備える車両
JP6794617B2 (ja) 2015-09-18 2020-12-02 株式会社Ｇｓユアサ 蓄電装置
KR102017232B1 (ko) * 2016-02-05 2019-09-02 주식회사 엘지화학 배터리 모듈 및 이를 포함하는 배터리 팩
JP2018006275A (ja) * 2016-07-07 2018-01-11 カルソニックカンセイ株式会社 組電池
JP6737093B2 (ja) * 2016-09-12 2020-08-05 株式会社Ｇｓユアサ 蓄電装置
JP6787148B2 (ja) * 2017-01-23 2020-11-18 株式会社豊田自動織機 電池パック
CN107171001B (zh) * 2017-05-26 2020-06-16 温州益蓉机械有限公司 用于燃料电池的防水壳
KR102307299B1 (ko) * 2017-08-29 2021-09-30 주식회사 엘지화학 방수 기능의 배터리 팩 및 이의 제조 방법
JP6489194B1 (ja) * 2017-11-13 2019-03-27 マツダ株式会社 電気車両のバッテリ搭載構造
JP7110626B2 (ja) * 2018-03-05 2022-08-02 株式会社Ｇｓユアサ 電気機器
JP7032269B2 (ja) * 2018-08-31 2022-03-08 本田技研工業株式会社 電動車両のバッテリパック
KR102640879B1 (ko) * 2019-02-08 2024-02-23 에스케이온 주식회사 배터리 모듈 및 이의 제조방법
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JP2016219243A (ja) * 2015-05-20 2016-12-22 株式会社豊田自動織機 電池モジュール
CN114207911A (zh) * 2019-08-03 2022-03-18 三洋电机株式会社 电源装置和具有该电源装置的电动车辆以及蓄电装置
US20220115728A1 (en) * 2020-10-12 2022-04-14 Wings Ev Private Limited Battery pack assembly
CN114300781A (zh) * 2021-12-30 2022-04-08 常州众信联合汽车机械制造有限公司 一种新能源汽车用电池壳体
CN114300781B (zh) * 2021-12-30 2024-05-17 常州众信联合汽车机械制造有限公司 一种新能源汽车用电池壳体

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