WO2012015003A1 - Secondary battery storage system rack - Google Patents

Secondary battery storage system rack Download PDF

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Publication number
WO2012015003A1
WO2012015003A1 PCT/JP2011/067350 JP2011067350W WO2012015003A1 WO 2012015003 A1 WO2012015003 A1 WO 2012015003A1 JP 2011067350 W JP2011067350 W JP 2011067350W WO 2012015003 A1 WO2012015003 A1 WO 2012015003A1
Authority
WO
WIPO (PCT)
Prior art keywords
secondary battery
fire extinguishing
storage system
temperature
system rack
Prior art date
Application number
PCT/JP2011/067350
Other languages
French (fr)
Japanese (ja)
Inventor
健二 内橋
浩人 永野
良行 石塚
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 WO2012015003A1 publication Critical patent/WO2012015003A1/en

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Classifications

    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring 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
    • H01M10/61—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
    • 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
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • 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 secondary battery storage system rack, and more particularly, to a secondary battery storage system rack that stores secondary battery blocks therein.
  • Energy is effectively used by using power storage devices such as secondary batteries.
  • power storage devices such as secondary batteries.
  • photovoltaic power generation systems have been actively developed as environmentally friendly clean energy, but photoelectric conversion modules that convert sunlight into electric power do not have a storage function, so they can be combined with secondary batteries. May be used.
  • energy is effectively used by charge / discharge control in which electric power generated by a photoelectric conversion module is once charged in a secondary battery and discharged from the secondary battery in response to a request from an external load or the like.
  • the secondary battery for example, a lithium ion secondary battery can be used. Since secondary batteries are used for a long period of time under various environments, it is desirable that various safety measures be taken. Therefore, for example, various safety measures have been taken for a lithium ion secondary battery alone, but it is preferable to further improve safety when the secondary battery is housed in a rack or the like.
  • Patent Document 1 discloses a power supply device that houses a plurality of batteries including a safety valve in a case as a power supply device, the battery chamber having a partition wall and a plurality of batteries, and the battery.
  • a configuration is disclosed in which an exhaust chamber for exhausting gas discharged from a safety valve of a battery housed in the chamber is partitioned.
  • a fire extinguisher that injects a fire extinguisher or an inert fluid into the exhaust chamber and a pressure sensor that detects the internal pressure of the exhaust chamber are provided.
  • the fire extinguisher is controlled by the pressure sensor so that the internal pressure of the exhaust chamber is greater than the set pressure.
  • a configuration is disclosed in which the fire extinguisher injects a fire extinguisher or an inert fluid into the exhaust chamber.
  • the secondary battery block including the secondary battery is housed inside the housing body, the secondary battery block is prepared according to the temperature state of the secondary battery in case the secondary battery becomes abnormal. It is desirable to supply a fire extinguishing agent.
  • the secondary battery block may be configured to include a plurality of secondary batteries, and the characteristics of each secondary battery may be different due to manufacturing variations of each secondary battery. For this reason, the situation in which each secondary battery is in an abnormal state may be different, so if any of the secondary batteries become abnormal, charging and discharging of the secondary battery is stopped and the fire is extinguished in preparation for ignition. It is desirable to be able to supply the agent.
  • An object of the present invention is to provide a secondary battery storage system rack with improved safety.
  • the secondary battery storage system rack includes a plurality of secondary batteries, and a plate material disposed between the adjacent secondary batteries and having a plate material plane size larger than the battery plane size of the secondary battery, A secondary battery block that performs charging / discharging, a secondary battery temperature detection unit provided in the secondary battery block, and the secondary battery block when heat generation abnormality occurs in at least one of the plurality of secondary batteries A shutoff circuit that shuts off charging / discharging of the secondary battery, and a shutoff circuit that shuts off charging / discharging of the secondary battery block when the temperature detected by the secondary battery temperature detection unit exceeds a threshold temperature for stopping charging and discharging. And a control unit for controlling.
  • the secondary battery storage system rack having the above configuration, when the temperature detected by the secondary battery temperature detection unit exceeds a predetermined fire-extinguishing threshold temperature, charging / discharging of the secondary battery block can be cut off. Thereby, the safety
  • FIG. 1 it is a figure which shows the front view and top view when the front door is closed in the secondary battery storage system rack. In embodiment which concerns on this invention, it is a figure which shows the front view and top view when the front door is opened in the secondary battery storage system rack. In embodiment which concerns on this invention, it is a figure which shows the arrangement
  • the secondary battery is described as being a lithium ion secondary battery, but may be a battery that can be charged / discharged and that generates heat by an electrochemical reaction.
  • a nickel hydrogen secondary battery, a nickel cadmium storage battery, a lead storage battery, a metal lithium secondary battery, or the like may be used.
  • the fire-resistant heat insulating material plate is described as being a calcium silicate plate, other than this, a plate made of a material having appropriate fire resistance, appropriate heat insulation, and appropriate strength may be used.
  • a ceramic plate made of an appropriate material can be used.
  • the shape, material, etc. described below are examples for explanation, and can be appropriately changed according to the specifications of the secondary battery storage system rack.
  • the shape and number of secondary batteries housed in the secondary battery block, the shape and number of refractory insulation plates, etc. are examples.
  • FIG. 1 shows a front view and a top view when the front door 14 is closed in the secondary battery storage system rack 10.
  • FIG. 2 shows a front view and a top view when the front door 14 is opened in the secondary battery storage system rack 10.
  • FIG. 3 is a diagram showing the arrangement relationship of specific elements of the secondary battery storage system rack 10 when the front door 14 is opened.
  • the secondary battery storage system rack 10 includes a storage main body 12 and a fire extinguishing device 20.
  • the housing body 12 houses the intake valve 94, the exhaust valve 96, the pressure-reducing valve 98, the first smoke sensor 90, the second smoke sensor 92, the circuit block 40, and the secondary battery block 120 inside. Function as a rack.
  • the storage main body 12 is a box shape having a substantially square bottom surface and elongated along the direction of gravity G.
  • the storage body 12 is surrounded by side walls 122, 124, 126, and the other one is a front face that can be opened and closed.
  • a door 14 is provided.
  • the side wall members 122, 124, 126 and the front door 14 are formed using a material having appropriate strength, for example, a stainless steel material.
  • the operation of the intake fan unit 32 provided at the lower part of the front door 14 of the storage body 12 is controlled by the control unit 44 and has a function of taking air into the interior from the outside of the storage body 12.
  • the intake fan unit 32 includes an intake port provided in the front door 14 and a fan attached to the front door 14 according to the intake port.
  • the intake-side shutter 182 is a shutter that can be slid along the gravity direction G so that the operation is controlled by the control unit 44 and the intake port of the intake fan unit 32 is closed.
  • the exhaust fan unit 30 provided at the upper part of the front door 14 of the storage body 12 is controlled by the control unit 44 and has a function of discharging air from the inside of the storage body 12 to the outside.
  • the exhaust fan unit 30 includes an exhaust port provided in the front door 14 and a fan attached to the front door 14 according to the exhaust port.
  • the exhaust-side shutter 180 is a shutter that is controlled by the control unit 44 and can slide along the gravity direction G so as to close the exhaust port of the exhaust fan unit 30.
  • the arrangement relationship of the elements arranged inside the storage main body 12 is that the secondary battery block 120 having a large mass is arranged below the circuit block 40 in the gravity direction G.
  • the circuit block 40 having a smaller mass than the secondary battery block 120 is disposed above the secondary battery block 120 in the gravity direction G.
  • the secondary battery block 120 may be disposed below so that the center of gravity of the storage main body 12 is at the bottom, and another device may be provided below the secondary battery block 120.
  • a power terminal part for guiding the power line 100 for exchanging power with the outside to the inside of the storage body part 12 is placed on the upper side of the ceiling part of the storage body part 12.
  • four power lines 100 are shown: a DC power input line and output line, and an AC power input line and output line. This is an example, and the power line 100 having a configuration other than this may be used.
  • a signal terminal portion that guides signal lines 102, 104, and 106 for exchanging signals with the outside to the inside of the storage main body portion 12 is placed on the upper side of the ceiling portion of the storage main body portion 12.
  • a charge / discharge command signal line 102, an external alarm signal line 104, and an abnormal signal line 106 are shown on the upper side of the ceiling portion of the storage main body portion 12.
  • the charge / discharge command signal line 102 is used to instruct the control unit 44 of the circuit block 40 of the storage main body unit 12 to charge / discharge the secondary battery block 120 from a control device or the like outside the secondary battery storage system rack 10.
  • This is a signal line for transmitting the signal.
  • the external alarm signal line 104 is a signal line for transmitting to the control unit 44 an alarm signal generated when a fire has occurred outside the secondary battery storage system rack 10.
  • the abnormal signal line 106 is a signal line for generating an abnormal signal in the control unit 44 when an abnormal temperature rise or the like occurs in the secondary battery block 120 and transmitting it to an external control device or the like.
  • these signal lines are examples, and of course, other signal lines can be provided.
  • the circuit block 40 includes a power distributor unit 46, a control unit 44, and a breaker unit 42.
  • Each of these elements is a power distributor unit 46 connected to the power line 100 so as to follow the flow of power when charging / discharging between the secondary battery block 120 of the secondary battery storage system rack 10 and the outside.
  • the breaker unit 42 connected to the secondary battery block 120 is disposed at the lowermost position, with the control unit 44 controlling the power distributor unit 46 and the breaker unit 42 in the middle. Thereby, since the wiring which connects each element can be shortened, the power loss by wiring resistance can be suppressed.
  • the power distributor unit 46 converts input power input from the outside via the power line 100 as charging power, converts the discharge power of the secondary battery block 120 as output power, and outputs the power via the power line 100 to the outside. It has a function to output.
  • the control unit 44 disposed below the power distributor unit 46 includes a charge / discharge control unit 80 and a fire extinguishing control unit 82.
  • the charge / discharge control unit 80 controls the power distributor unit 46 so that power is charged / discharged between the outside and the secondary battery block 120 according to the charge / discharge command transmitted through the charge / discharge command signal line 102. It has a function to control.
  • the fire extinguishing control unit 82 has a function of controlling the fire extinguishing device 20 so that the fire extinguishing device 20 supplies the secondary battery block 120 with the fire extinguishing agent based on an external alarm signal transmitted from the external alarm signal line 104 or the like. Have.
  • the control unit 44 and the power distributor unit 46 are connected by a signal line 108, and the control unit 44 and the breaker unit 42 are connected by a signal line 110.
  • the breaker unit 42 arranged below the control unit 44 is connected / disconnected by the control of the control unit 44.
  • the secondary battery block 120 disposed below the breaker unit 42 includes a plurality of secondary batteries 140 that perform charging and discharging, and a refractory heat insulating plate 134 for suppressing heat conduction between the secondary batteries 140. Consists of including.
  • the secondary battery 140 for example, a lithium ion secondary battery having a negative electrode made of a carbon material, an electrolytic solution for moving lithium ions, and a positive electrode active material capable of reversing lithium ions can be used. Can do.
  • As the fireproof heat insulating plate 134 for example, a calcium silicate plate excellent in fire resistance, heat insulating effect, and strength can be used. The arrangement relationship between the secondary battery 140 and the refractory heat insulating plate 134 in the secondary battery block 120 will be described later.
  • Each secondary battery 140 includes an electrode connected to the breaker unit 42 via the signal line 114, and a temperature sensor 142 that detects an internal temperature state.
  • the temperature sensors 142 are connected to the control unit 44 by signal lines 112 and transmit temperature signals (temperature information) to the control unit 44.
  • the first smoke sensor 90 and the second smoke sensor 92 are configured to detect smoke generated by the secondary battery 140 when the secondary battery 140 exceeds a predetermined allowable temperature and ignites in an abnormal state. It is.
  • the first smoke sensor 90 is disposed in the upper region where the secondary battery block 120 is disposed inside the storage body 12, and the second smoke sensor 92 is disposed in the vicinity of the uppermost portion inside the storage body 12.
  • the detection results of the first smoke sensor 90 and the second smoke sensor 92 are transmitted to the control unit 44 of the circuit block 40.
  • the fire extinguishing device 20 functions as a fire extinguishing facility placed on the upper side of the ceiling portion of the storage main body 12.
  • the fire extinguisher 20 includes a fire extinguisher control unit 22, a fire extinguisher tank 24, a fire extinguisher supply valve 26, and a fire extinguisher supply pipe 28.
  • the fire extinguisher tank 24 is a tank for storing a fire extinguisher.
  • the extinguishing agent supply pipe 28 extends toward the secondary battery block 120 and is a pipe for supplying the extinguishing agent in the extinguishing agent tank 24 to the secondary battery block 120 from the injection port 150 attached to the tip portion thereof. It is.
  • the extinguishing agent filled in the extinguishing agent tank 24 one having a mass per unit volume larger than the mass per unit volume of air and having electrical insulation is used, for example, by thermal decomposition after injection.
  • CF 3 CF 2 C (O) CF (CF 3 ) 2 that generates a volatile trifluoromethyl group (CF 3 * ) can be used.
  • the fire extinguishing agent supply valve 26 allows the extinguishing agent to be supplied from the extinguishing agent tank 24 to the extinguishing agent supply pipe 28 when the valve is opened, and when the valve is closed, the extinguishing agent supply pipe 28 from the extinguishing agent tank 24. Stop supplying the extinguishing agent to the machine.
  • the fire extinguisher supply valve 26 is controlled to be opened and closed by the fire extinguisher control unit 22.
  • the fire extinguisher control unit 22 opens the fire extinguisher supply valve 26 when an external alarm signal indicating a fire extinguishing start signal input via the external alarm signal line 104 or a fire extinguishing start signal from the control unit 44 is received. To do.
  • the fire extinguisher control unit 22 closes the fire extinguisher supply valve 26 when a fire extinguishing end signal is received from the control unit 44.
  • the intake valve 94 and the exhaust valve 96 are attached to the ceiling of the storage main body 12, and after the fire extinguishing device 20 is activated after the secondary battery block 120 is abnormal, the used fire extinguisher after the extinguishing is not illustrated. It is an on-off valve used for suctioning and exhausting by a suction pump.
  • the operation of the intake valve 94 and the exhaust valve 96 is controlled under the control unit 44 of the circuit block 40. Specifically, the intake valve 94 and the exhaust valve 96 are normally closed at the normal time, and after the fire is extinguished, the intake valve 94 is opened and opened to the atmosphere, and the exhaust valve 96 is opened to a suction pump (not shown). Connected. As a result, air is taken into the storage main body 12 from the intake valve 94, and the used extinguishing agent together with the air is discharged to the outside through the exhaust valve 96 by the suction pump.
  • the pressure-reducing valve 98 is a valve that opens to normalize the pressure value of the storage body 12 when the internal pressure of the storage body 12 exceeds a predetermined pressure value.
  • FIG. 4 is a detailed view showing the arrangement of the secondary battery 140 and the refractory heat insulating plate 134.
  • the lower part of FIG. 4 shows the state of the lower part of the storage main body 12 with the front door 14 open, and the upper part of FIG. 4 shows 1 in the storage main body 12 with the front door 14 closed.
  • the top view which looked at the downward direction from the upper direction of the two secondary batteries 140 is shown.
  • the pillars 121, 123, 125, 127 are column members that are respectively set up at four corners inside the storage body 12 and are firmly fixed to the bottom surface of the storage body 12.
  • the columns 121, 123, 125, 127 have a function as mounting columns for arranging the elements constituting the secondary battery block 120 and the circuit block 40.
  • the support columns 121, 123, 125, and 127 can be extended to the ceiling portion of the storage main body portion 12 as necessary to improve the fixing property as the pillar material.
  • a material having fire resistance and appropriate strength formed into a column shape for example, a metal column, a pipe, or the like can be used. In the example of FIG. 4, a prism is used, but a polygonal column, a cylinder, or the like may be used.
  • the shelf support members 130 and 132 are bar members that have a function of supporting a shelf board when placed on two pillar members facing each other and placing a shelf board thereon.
  • the shelf support member 130 is passed and fixed between the support column 121 and the support column 125
  • the shelf support material 132 is passed and fixed between the support column 123 and the support column 127.
  • the shelf support members 130 and 132 are attached at predetermined intervals along the height direction of the columns 121, 123, 125, and 127.
  • the predetermined interval is set as an interval having a dimension sufficiently larger than the height of the rectangular parallelepiped of the secondary battery 140.
  • a bar made of a material having fire resistance can be used as the shelf receiving materials 130 and 132.
  • a metal round bar can be used as the shelf receiving materials 130 and 132.
  • a plurality of shelf boards can be arranged at predetermined intervals in the vertical direction.
  • three pairs of shelf support members 130 and 132 are illustrated.
  • the refractory heat insulating board 134 is a shelf arranged on the shelf receiving members 130 and 132. As shown in the upper part of FIG. 4, the fireproof and heat insulating plate 134 is formed from the area of the inner space surrounded by the side wall members 122, 124, 126 of the storage main body 12 and the inner wall surface of the front door 14. It is large enough to cover other parts, leaving a suitable space on the 126 side. The appropriate space is sufficient to perform intake and exhaust when the intake valve 94 and the exhaust valve 96 are operated through the signal lines 112 and 114 and the fire extinguishing agent supply pipe 28 described with reference to FIG. It is a large spare space.
  • the gap space 170 can be set as the appropriate space.
  • the gap space 170 can be, for example, a space formed between the inner wall surface of the side wall members 122 and 124 of the storage main body 12 and the surface along the outer surface 183 of the refractory heat insulating plate member 134.
  • the gap space 170 may be a space formed between the inner wall surface of the side wall members 122 and 124 of the storage main body 12 and the surface along the outer side surface 181 of each column 121, 123, 125, 127. Good.
  • the gap space 170 is a space outside the region where the secondary battery block 120 is disposed.
  • the fireproof heat insulating plate 134 has a shape in which four corners of a rectangular planar shape are cut out. The cutouts at the four corners are provided for passing the columns 121, 123, 125, 127.
  • the size of the rectangular shape is set sufficiently larger than the planar dimension of the rectangular parallelepiped of the secondary battery 140.
  • the planar size of the rectangular parallelepiped of the secondary battery 140 is about 45 cm ⁇ about 45 cm
  • the bottom surface size of the storage main body 12 is about 70 cm ⁇ about 70 cm
  • the thickness of the side wall member is several mm
  • the rectangular shape of the refractory heat insulating plate 134 can be about 60 cm ⁇ about 60 cm. Of course, other dimensions can be used.
  • the secondary battery 140 is disposed within the range of the planar dimensions of the refractory heat insulating plate 134.
  • the fireproof heat insulating plate material 134 a calcium silicate plate formed or processed into the above shape can be used. Since the fireproof heat insulating plate material 134 needs to have fire resistance, heat insulating properties, and appropriate strength, as described above, it is a flat plate that does not have unnecessary openings such as processed holes in the plate thickness direction. In addition, in order to reinforce the strength of the calcium silicate plate, a laminated structure may be used by using a metal thin plate having an appropriate thickness to the extent that the heat insulation is not impaired.
  • the refractory heat insulating plate material 134 is also arranged in the vertical direction in the secondary battery block 120 inside the storage body 12.
  • a plurality of sheets can be arranged at predetermined intervals.
  • the secondary battery block 120 inside the storage main body 12 can be divided into a plurality of spaces partitioned by the fireproof and heat insulating plate material 134 in the upper and lower sides.
  • FIG. 4 shows an example in which one piece of fireproof heat insulating plate 134 is also laid on the bottom surface of the storage main body 12. For example, when signal lines, circuit components, etc. are arranged on the bottom surface side. It is preferable to do so.
  • the secondary batteries 140 are lithium ion secondary batteries that are arranged one by one in a space partitioned by a fireproof heat insulating plate material 134. “One by one” means one unit that can be controlled by the control unit 44, for example, a unit that can be distinguished from other secondary batteries 140 by the breaker unit 42. In the example of FIG. 3, six secondary batteries 140 are arranged one by one in a space partitioned by a fireproof heat insulating plate material 134, and each of the six secondary batteries 140 is 1 The charge / discharge state can be interrupted by the breaker unit 42 independently.
  • the support members 136 and 138 are spaced apart from the battery support surface, which is the top surface, and the refractory heat insulating plate material 134 so that the secondary battery 140 is spatially separated from the refractory heat insulating plate material 134 via a gap. It is the L-shaped bending board member which has a leg part for.
  • the support member 136 has legs attached to the columns 121 and 125 so that the battery support surface, which is an L-shaped top surface, is horizontal, and the support member 138 has legs so that the battery support surface is horizontal. Attached to the columns 123 and 127. At the time of attachment, the height position of the battery support surface of the support member 136 and the height position of the battery support surface of the support member 138 are set to be the same. Accordingly, the bottom surface side of the secondary battery 140 can be supported by the battery support surfaces of the pair of support members 136 and 138.
  • the attachment positions of the support members 136 and 138 with respect to the columns 121, 123, 125, and 127 are arranged above and above the upper surface of the secondary battery 140 when the secondary battery 140 is placed and supported on the battery support surface.
  • an appropriate upper spatial gap is formed between the lower surface of the fireproof heat insulating plate 134 and between the lower surface of the secondary battery 140 and the upper surface of the fireproof heat insulating plate 134 disposed below the secondary battery 140. It is set so that an appropriate lower spatial gap is formed.
  • the secondary battery 140 is arrange
  • each secondary battery 140 and each refractory heat insulating plate 134 are arranged along the gravity direction G.
  • the secondary battery 140 is separated from other elements including the refractory heat insulating plate 134 by the upper spatial gap and the lower spatial gap, and the thermal conductivity of air is smaller than that of the solid. Even if heat is generated in one secondary battery 140, heat conduction to the other secondary batteries 140 can be effectively suppressed.
  • the secondary batteries 140 are arranged one by one in a space partitioned by the fire-resistant and heat-insulating plate 134, even if one secondary battery 140 is ignited, the fire-resistant and heat-insulating plate 134 It is possible to effectively suppress the influence on other secondary batteries 140.
  • a plurality of secondary batteries are arranged by spatially separating the secondary batteries 140 from the fireproof and heat insulating plate 134 one by one in the space partitioned by the fireproof and heat insulating plate 134. Even when a heat generation abnormality occurs in one of the 140, it is possible to suppress the heat generation abnormality of the other secondary battery 140 by suppressing the heat generation abnormality of the secondary battery 140. Even if one secondary battery 140 is ignited, the fire resistance of the refractory heat insulating plate 134 keeps the secondary battery 140 ignited, and the ignition proceeds to the other secondary battery 140. This can be suppressed.
  • FIG. 5 is a timing chart showing a procedure for extinguishing fire in the case where the secondary battery block 120 is ignited in the secondary battery storage system rack 10.
  • BTA Battery Temperature Abnormal
  • BTN Battery Temperature Normal
  • T 0 indicates a charge / discharge stop threshold temperature
  • T 1 indicates an abnormal signal generation threshold temperature that is higher than T 0
  • T 2 is a temperature higher than T 1.
  • the threshold temperature for fire extinguishing is shown.
  • BTA abnormal state
  • BTN normal state
  • the BTA indicating the temperature change of the secondary battery 140 that has malfunctioned among the secondary batteries 140 of the secondary battery block 120 is the threshold temperature T for charging / discharging stop at time t 1. Higher than 0 .
  • the fire extinguishing control unit 82 determines that at least one of the temperature signals transmitted through the signal line 112 is in an abnormal state. And the fire extinguishing control part 82 stops charging / discharging control with respect to the secondary battery block 120 by carrying out cutoff control of the breaker unit 42 supposing that the abnormality may have generate
  • the breaker unit 42 is controlled to be cut off at the time when the charge / discharge stop threshold temperature T 0 is reached at the earliest time.
  • the fire extinguishing control unit 82 resumes the charge / discharge control for the secondary battery block 120 by controlling the connection of the breaker unit 42, assuming that there is no possibility of abnormality in the secondary battery block 120. .
  • the charge / discharge control is resumed when the charge / discharge stop threshold temperature T 0 is once again lower than the charge / discharge stop threshold temperature T 0 after the temperature exceeds the charge / discharge stop threshold temperature T 0 once.
  • BTA again becomes higher than the charge / discharge stop threshold temperature T 0 at time t 3 .
  • the fire extinguishing control unit 82 stops charging / discharging control for the secondary battery block 120 by controlling the breaker unit 42 again, assuming that the secondary battery block 120 may be abnormal.
  • the BTA becomes higher than the abnormal signal generation threshold temperature T 1 at time t 4 .
  • T 0 unlike the case of the charge / discharge stop threshold temperature T 0 , it is assumed that there is some abnormality in the secondary battery block 120 and an abnormal signal indicating that an abnormality has occurred in the secondary battery block 120 is abnormal.
  • an abnormal signal is output at the time when the abnormal signal generation threshold temperature T 1 is reached at the earliest time.
  • the fire extinguishing control unit 82 stops the fan of the intake fan unit 32 and slides the intake side shutter 182 so that the intake side shutter 182 closes the intake port of the intake fan unit 32. Further, the fire extinguishing control unit 82 stops the fan of the exhaust fan unit 30 and slides the exhaust side shutter 180 so that the exhaust side shutter 180 closes the exhaust port of the exhaust fan unit 30.
  • the fire extinguishing control unit 82 outputs a fire extinguishing start signal to the fire extinguisher control unit 22. Even if the first smoke sensor 90 and the second smoke sensor 92 do not detect smoke, the BTA temperature exceeds the fire extinguishing threshold temperature T 2 at time t 6 , so the fire extinguishing control unit 82 is the same as above. Perform the process. When the plurality of secondary batteries 140 change to an abnormal temperature, a fire extinguishing start signal is output at the time when the fire extinguishing threshold temperature T 2 is reached at the earliest time.
  • the fire extinguishing control unit 82 outputs a fire extinguishing end signal to the fire extinguisher control unit 22 at a time t 9 when it is considered that a sufficient time has elapsed since the start of extinguishing by the fire extinguishing device 20.
  • the temperature of the temperature sensor 142 detects provided in the secondary battery 140 of the secondary battery block 120 is higher than the extinguishing threshold temperature T 2 Since the fire extinguisher of the fire extinguishing device 20 is supplied to the secondary battery block 120, the fire can be extinguished even if the secondary battery 140 is ignited.
  • any one of the temperatures detected by the temperature sensor 142 of each secondary battery block 120 is the threshold temperature T 0 for charge / discharge stop. Since the charging / discharging to the secondary battery block 120 is stopped when it becomes higher than that, the abnormal state of the secondary battery 140 can be prevented from deteriorating. Further, when the BTA becomes higher than the abnormal signal generation threshold temperature T 1 , an abnormal signal is output through the abnormal signal line 106, so that the secondary battery block 120 is informed to the outside that it is in an abnormal state. can do.
  • the fire extinguisher of the fire extinguishing device 20 is applied to the secondary battery block 120. Therefore, even if the secondary battery 140 is ignited, it can be extinguished. As described above, since the countermeasures such as fire extinguishing are performed based on the temperature information from each temperature sensor 142 of each secondary battery block 120, the fire extinguishing more suitably even when there is a manufacturing variation in the secondary battery 140. Can be dealt with.
  • the secondary battery block 120 can be extinguished more suitably.
  • 10 secondary battery storage system rack 12 storage main body, 14 front door, 20 fire extinguisher, 22 fire extinguisher control unit, 24 fire extinguisher tank, 26 fire extinguisher supply valve, 28 fire extinguisher supply piping, 30 exhaust fan section, 32 Intake fan unit, 40 circuit block, 42 breaker unit, 44 control unit, 46 power distributor unit, 80 charge / discharge control unit, 82 fire extinguishing control unit, 90 first smoke sensor, 92 second smoke sensor, 94 intake valve, 96 Exhaust valve, 98 pressure relief valve, 100 power line, 102 charge / discharge command signal line, 104 external alarm signal line, 106 abnormal signal line, 108, 110, 112, 114 signal line, 120 secondary battery block, 121, 123, 125, 127 strut, 122, 124, 126 sidewall member, 130, 13 Shelf receiving material, 134 insulating refractory plate, 136 supporting members, 140 secondary batteries, 142 temperature sensor, 150 ejection openings, 170 intersti

Abstract

The disclosed secondary battery storage system rack (10) is provided with a secondary battery block (120) for charging and discharging, a temperature sensor (142) provided on the secondary battery block (120), a fire extinguishing device (20) for supplying a fire extinguishing agent to the secondary battery block (120) when a fire must be extinguished, and a control unit (44). When the temperature detected by the temperature sensor (142) exceeds a charge/discharge stopping threshold temperature, the control unit (44) blocks charging and discharging of the secondary battery block (120); when said temperature exceeds an abnormal signal generation threshold temperature which is higher than the charge/discharge stopping threshold temperature and lower than a fire extinguishing threshold temperature, the control unit (44) outputs an abnormal signal; when said temperature exceeds the fire extinguishing threshold temperature, the control unit (44) controls the fire extinguishing device (20) to supply the fire extinguishing agent to the secondary battery block (120).

Description

二次電池収納システムラックSecondary battery storage system rack
　本発明は、二次電池収納システムラックに係り、特に、二次電池ブロックを内部に収納する二次電池収納システムラックに関する。 The present invention relates to a secondary battery storage system rack, and more particularly, to a secondary battery storage system rack that stores secondary battery blocks therein.
　二次電池等の蓄電装置を利用することで、エネルギーの有効活用がなされている。例えば、近年、環境に優しいクリーンエネルギーとして太陽光発電システムの開発が盛んに行なわれているが、太陽光を電力に変換する光電変換モジュールは蓄電機能を備えていないため、二次電池と組合わせて使用されることがある。例えば、光電変換モジュールにより発電された電力を一旦二次電池に充電して、外部負荷の要求等に応じて二次電池から放電する充放電制御によってエネルギーの有効活用が行なわれている。 Energy is effectively used by using power storage devices such as secondary batteries. For example, in recent years, photovoltaic power generation systems have been actively developed as environmentally friendly clean energy, but photoelectric conversion modules that convert sunlight into electric power do not have a storage function, so they can be combined with secondary batteries. May be used. For example, energy is effectively used by charge / discharge control in which electric power generated by a photoelectric conversion module is once charged in a secondary battery and discharged from the secondary battery in response to a request from an external load or the like.
　二次電池には、例えば、リチウムイオン二次電池を用いることができる。二次電池は、様々な環境等のもとで長期間使用されるため、様々な安全策が講じられることが望まれる。そこで、例えばリチウムイオン二次電池単体等においても様々な安全策が講じられているが、二次電池をラック等に収納して用いる場合に、さらに安全性を向上させることが好ましい。 As the secondary battery, for example, a lithium ion secondary battery can be used. Since secondary batteries are used for a long period of time under various environments, it is desirable that various safety measures be taken. Therefore, for example, various safety measures have been taken for a lithium ion secondary battery alone, but it is preferable to further improve safety when the secondary battery is housed in a rack or the like.
　例えば、特許文献１には、電源装置として、安全弁を備える複数の電池をケースに収納する電源装置であって、ケースを区画壁でもって、複数の電池を収納している電池室と、この電池室に収納される電池の安全弁から排出されるガスを排気する排気室とに区画している構成が開示されている。ここでは、消火剤または不活性流体を排気室に噴射する消火器と、排気室の内圧を検出する圧力センサとを備え、消火器を圧力センサで制御して、排気室の内圧が設定圧力よりも高くなると、消火器が排気室内に消火剤または不活性流体を噴射するようにしてなる構成が開示されている。 For example, Patent Document 1 discloses a power supply device that houses a plurality of batteries including a safety valve in a case as a power supply device, the battery chamber having a partition wall and a plurality of batteries, and the battery. A configuration is disclosed in which an exhaust chamber for exhausting gas discharged from a safety valve of a battery housed in the chamber is partitioned. Here, a fire extinguisher that injects a fire extinguisher or an inert fluid into the exhaust chamber and a pressure sensor that detects the internal pressure of the exhaust chamber are provided. The fire extinguisher is controlled by the pressure sensor so that the internal pressure of the exhaust chamber is greater than the set pressure. In other words, a configuration is disclosed in which the fire extinguisher injects a fire extinguisher or an inert fluid into the exhaust chamber.
特開２００７－２７０１１号公報JP 2007-27011 A
　ところで、二次電池を備える二次電池ブロックを収納本体部の内部に収納した場合に、二次電池が異常状態となった場合に備えて、二次電池の温度状態に応じて二次電池ブロックに対して消火剤を供給することが望まれる。 By the way, when the secondary battery block including the secondary battery is housed inside the housing body, the secondary battery block is prepared according to the temperature state of the secondary battery in case the secondary battery becomes abnormal. It is desirable to supply a fire extinguishing agent.
　さらに、二次電池ブロックは複数の二次電池を含んで構成されることもあり、各二次電池の製造バラツキ等が原因で、各二次電池の特性が異なる場合がある。このため、各二次電池が異常状態となる状況も異なることがあるため、各二次電池のいずれかが異常状態となった場合、二次電池の充放電を停止し、発火に備えて消火剤を供給可能な状態とすることが望まれる。 Furthermore, the secondary battery block may be configured to include a plurality of secondary batteries, and the characteristics of each secondary battery may be different due to manufacturing variations of each secondary battery. For this reason, the situation in which each secondary battery is in an abnormal state may be different, so if any of the secondary batteries become abnormal, charging and discharging of the secondary battery is stopped and the fire is extinguished in preparation for ignition. It is desirable to be able to supply the agent.
　本発明の目的は、安全性を向上させた二次電池収納システムラックを提供することである。 An object of the present invention is to provide a secondary battery storage system rack with improved safety.
　本発明に係る二次電池収納システムラックは、複数の二次電池と、隣接する前記二次電池の間に配置され前記二次電池の電池平面寸法より大きい板材平面寸法を有する板材とを含み、充放電を行う二次電池ブロックと、前記二次電池ブロックに設けられる二次電池温度検知部と、前記複数の二次電池のうち少なくとも１つに発熱異常が生じた際に前記二次電池ブロックの充放電を遮断する遮断回路と、前記二次電池温度検知部が検出する温度が充放電停止用の閾値温度を超えたときに前記遮断回路が前記二次電池ブロックの充放電を遮断するように制御する制御部と、を備える。 The secondary battery storage system rack according to the present invention includes a plurality of secondary batteries, and a plate material disposed between the adjacent secondary batteries and having a plate material plane size larger than the battery plane size of the secondary battery, A secondary battery block that performs charging / discharging, a secondary battery temperature detection unit provided in the secondary battery block, and the secondary battery block when heat generation abnormality occurs in at least one of the plurality of secondary batteries A shutoff circuit that shuts off charging / discharging of the secondary battery, and a shutoff circuit that shuts off charging / discharging of the secondary battery block when the temperature detected by the secondary battery temperature detection unit exceeds a threshold temperature for stopping charging and discharging. And a control unit for controlling.
　上記構成の二次電池収納システムラックによれば、二次電池温度検知部が検出する温度が所定の消火用閾値温度を超えたときに、二次電池ブロックの充放電を遮断することができる。これにより、二次電池収納システムラックの安全性を向上させることができる。 According to the secondary battery storage system rack having the above configuration, when the temperature detected by the secondary battery temperature detection unit exceeds a predetermined fire-extinguishing threshold temperature, charging / discharging of the secondary battery block can be cut off. Thereby, the safety | security of a secondary battery storage system rack can be improved.
本発明に係る実施の形態において、二次電池収納システムラックにおいて正面扉を閉じているときの正面図と上面図を示す図である。In embodiment which concerns on this invention, it is a figure which shows the front view and top view when the front door is closed in the secondary battery storage system rack. 本発明に係る実施の形態において、二次電池収納システムラックにおいて正面扉を開いているときの正面図と上面図を示す図である。In embodiment which concerns on this invention, it is a figure which shows the front view and top view when the front door is opened in the secondary battery storage system rack. 本発明に係る実施の形態において、正面扉を開いているときの二次電池収納システムラックの具体的な要素の配置関係を示す図である。In embodiment which concerns on this invention, it is a figure which shows the arrangement | positioning relationship of the specific element of the secondary battery storage system rack when the front door is opened. 本発明に係る実施の形態において、二次電池ブロックの詳細な構成を説明する図である。In embodiment which concerns on this invention, it is a figure explaining the detailed structure of a secondary battery block. 本発明に係る実施の形態において、二次電池収納システムラックにおいて二次電池ブロックが万一発火した場合に消火を行う手順を示すタイミングチャートである。In embodiment concerning this invention, it is a timing chart which shows the procedure which extinguishes when a secondary battery block should ignite by any chance in a secondary battery storage system rack.
　以下に図面を用いて、本発明に係る実施の形態を詳細に説明する。以下では、二次電池はリチウムイオン二次電池であるものとして説明するが、これ以外でも充放電可能で、電気化学反応によって発熱する電池であってもよい。例えばニッケル水素二次電池、ニッケルカドミウム蓄電池、鉛蓄電池、金属リチウム二次電池等であってもよい。 Embodiments according to the present invention will be described below in detail with reference to the drawings. In the following description, the secondary battery is described as being a lithium ion secondary battery, but may be a battery that can be charged / discharged and that generates heat by an electrochemical reaction. For example, a nickel hydrogen secondary battery, a nickel cadmium storage battery, a lead storage battery, a metal lithium secondary battery, or the like may be used.
　また、耐火断熱材板は、ケイ酸カルシウム板であるものとして説明するが、これ以外でも、適当な耐火性、適当な断熱性、適当な強度を有する材質の板であればよい。例えば、適当な材質のセラミック板を用いることができる。 In addition, although the fire-resistant heat insulating material plate is described as being a calcium silicate plate, other than this, a plate made of a material having appropriate fire resistance, appropriate heat insulation, and appropriate strength may be used. For example, a ceramic plate made of an appropriate material can be used.
　また、以下で述べる形状、材質等は、説明のための例示であり、二次電池収納システムラックの仕様に応じ適宜変更が可能である。例えば、二次電池ブロックに収納される二次電池の形状、個数、耐火断熱材板の形状、個数等は、例示である。 Further, the shape, material, etc. described below are examples for explanation, and can be appropriately changed according to the specifications of the secondary battery storage system rack. For example, the shape and number of secondary batteries housed in the secondary battery block, the shape and number of refractory insulation plates, etc. are examples.
　また、以下では、全ての図面において、同様の要素には同一の符号を付し、重複する説明を省略する。また、本文中の説明においては、必要に応じそれ以前に述べた符号を用いるものとする。 Also, in the following, in all the drawings, the same symbols are attached to the same elements, and the duplicate description is omitted. In the description in the text, the symbols described before are used as necessary.
　図１は、二次電池収納システムラック１０において正面扉１４を閉じているときの正面図と上面図を示す図である。図２は、二次電池収納システムラック１０において正面扉１４を開いているときの正面図と上面図を示す図である。図３は、正面扉１４を開いているときの二次電池収納システムラック１０の具体的な要素の配置関係を示す図である。二次電池収納システムラック１０は、収納本体部１２と、消火装置２０とを含んで構成される。 FIG. 1 shows a front view and a top view when the front door 14 is closed in the secondary battery storage system rack 10. FIG. 2 shows a front view and a top view when the front door 14 is opened in the secondary battery storage system rack 10. FIG. 3 is a diagram showing the arrangement relationship of specific elements of the secondary battery storage system rack 10 when the front door 14 is opened. The secondary battery storage system rack 10 includes a storage main body 12 and a fire extinguishing device 20.
　収納本体部１２は、吸気弁９４と、排気弁９６と、避圧弁９８と、第１煙センサ９０と、第２煙センサ９２と、回路ブロック４０と、二次電池ブロック１２０とを内部に収納するラックとしての機能を有する。収納本体部１２は、底面が略正方形であって重力方向Ｇに沿って細長く伸びた箱型で、三方が側壁部材１２２，１２４，１２６で囲まれて設けられ、残り一方には開閉可能な正面扉１４が設けられている。なお、側壁部材１２２，１２４，１２６と正面扉１４は、適当な強度を有する材質、例えば、ステンレス鋼材を用いて形成されている。 The housing body 12 houses the intake valve 94, the exhaust valve 96, the pressure-reducing valve 98, the first smoke sensor 90, the second smoke sensor 92, the circuit block 40, and the secondary battery block 120 inside. Function as a rack. The storage main body 12 is a box shape having a substantially square bottom surface and elongated along the direction of gravity G. The storage body 12 is surrounded by side walls 122, 124, 126, and the other one is a front face that can be opened and closed. A door 14 is provided. The side wall members 122, 124, 126 and the front door 14 are formed using a material having appropriate strength, for example, a stainless steel material.
　収納本体部１２の正面扉１４において下部に設けられる吸気ファン部３２は、動作が制御ユニット４４によって制御され、収納本体部１２の外部から内部に空気を取り込む機能を有する。吸気ファン部３２は、正面扉１４に設けられる吸気口と、吸気口に合わせて正面扉１４に取り付けられるファンとを含んで構成される。吸気側シャッタ１８２は、動作が制御ユニット４４によって制御され、吸気ファン部３２の吸気口を閉塞するように、重力方向Ｇに沿ってスライドすることが可能なシャッタである。 The operation of the intake fan unit 32 provided at the lower part of the front door 14 of the storage body 12 is controlled by the control unit 44 and has a function of taking air into the interior from the outside of the storage body 12. The intake fan unit 32 includes an intake port provided in the front door 14 and a fan attached to the front door 14 according to the intake port. The intake-side shutter 182 is a shutter that can be slid along the gravity direction G so that the operation is controlled by the control unit 44 and the intake port of the intake fan unit 32 is closed.
　収納本体部１２の正面扉１４において上部に設けられる排気ファン部３０は、制御ユニット４４によって制御され、収納本体部１２の内部から外部に空気を排出する機能を有する。排気ファン部３０は、正面扉１４に設けられる排気口と、排気口に合わせて正面扉１４に取り付けられるファンとを含んで構成される。排気側シャッタ１８０は、制御ユニット４４によって制御され、排気ファン部３０の排気口を閉塞するように、重力方向Ｇに沿ってスライドすることが可能なシャッタである。 The exhaust fan unit 30 provided at the upper part of the front door 14 of the storage body 12 is controlled by the control unit 44 and has a function of discharging air from the inside of the storage body 12 to the outside. The exhaust fan unit 30 includes an exhaust port provided in the front door 14 and a fan attached to the front door 14 according to the exhaust port. The exhaust-side shutter 180 is a shutter that is controlled by the control unit 44 and can slide along the gravity direction G so as to close the exhaust port of the exhaust fan unit 30.
　ここで、図１～３に示されるように、収納本体部１２の内部に配置される要素の配置関係は、質量の大きい二次電池ブロック１２０を回路ブロック４０よりも重力方向Ｇの下方に配置する。換言すれば、二次電池ブロック１２０に比べて質量の小さい回路ブロック４０を、二次電池ブロック１２０よりも重力方向Ｇの上方に配置する。このように、二次電池ブロック１２０を収納本体部１２の内部において最も下方に配置することで、収納本体部１２における重心が下部に位置するため、収納本体部１２を安定して設置することができる。なお、収納本体部１２の重心が下部となるように二次電池ブロック１２０を下方に配置すればよく、二次電池ブロック１２０の下方に他の装置が設けられていてもよい。 Here, as shown in FIGS. 1 to 3, the arrangement relationship of the elements arranged inside the storage main body 12 is that the secondary battery block 120 having a large mass is arranged below the circuit block 40 in the gravity direction G. To do. In other words, the circuit block 40 having a smaller mass than the secondary battery block 120 is disposed above the secondary battery block 120 in the gravity direction G. In this way, by arranging the secondary battery block 120 at the lowest position inside the storage body 12, the center of gravity of the storage body 12 is located at the bottom, so that the storage body 12 can be stably installed. it can. Note that the secondary battery block 120 may be disposed below so that the center of gravity of the storage main body 12 is at the bottom, and another device may be provided below the secondary battery block 120.
　収納本体部１２の天井部の上側には、外部と電力のやり取りを行うための電力線１００を収納本体部１２の内部に導く電力端子部が載置されている。図３の例では、直流電力の入力線と出力線、交流電力の入力線と出力線の４本が電力線１００として示されている。なお、これは１つの例であり、これ以外の構成の電力線１００としてもよい。 On the upper side of the ceiling part of the storage body part 12, a power terminal part for guiding the power line 100 for exchanging power with the outside to the inside of the storage body part 12 is placed. In the example of FIG. 3, four power lines 100 are shown: a DC power input line and output line, and an AC power input line and output line. This is an example, and the power line 100 having a configuration other than this may be used.
　また、収納本体部１２の天井部の上側には、外部と信号のやり取りを行うための信号線１０２，１０４，１０６を収納本体部１２の内部に導く信号端子部が載置されている。図３の例では、充放電指令信号線１０２、外部警報信号線１０４、異常信号線１０６が示されている。 In addition, on the upper side of the ceiling portion of the storage main body portion 12, a signal terminal portion that guides signal lines 102, 104, and 106 for exchanging signals with the outside to the inside of the storage main body portion 12 is placed. In the example of FIG. 3, a charge / discharge command signal line 102, an external alarm signal line 104, and an abnormal signal line 106 are shown.
　充放電指令信号線１０２は、二次電池収納システムラック１０の外部の制御装置等から、収納本体部１２の回路ブロック４０の制御ユニット４４に対し、二次電池ブロック１２０の充放電について指令するための信号を伝送する信号線である。外部警報信号線１０４は、二次電池収納システムラック１０の外部において火災が発生した等の場合に生成される警報信号を制御ユニット４４に伝送するための信号線である。異常信号線１０６は、二次電池ブロック１２０において異常な温度上昇等が発生した場合に制御ユニット４４で異常信号を生成し、それを外部の制御装置等に伝送するための信号線である。なお、これらの信号線は例示であって、勿論これら以外の信号線を設けるものとできる。 The charge / discharge command signal line 102 is used to instruct the control unit 44 of the circuit block 40 of the storage main body unit 12 to charge / discharge the secondary battery block 120 from a control device or the like outside the secondary battery storage system rack 10. This is a signal line for transmitting the signal. The external alarm signal line 104 is a signal line for transmitting to the control unit 44 an alarm signal generated when a fire has occurred outside the secondary battery storage system rack 10. The abnormal signal line 106 is a signal line for generating an abnormal signal in the control unit 44 when an abnormal temperature rise or the like occurs in the secondary battery block 120 and transmitting it to an external control device or the like. In addition, these signal lines are examples, and of course, other signal lines can be provided.
　また、回路ブロック４０は、電力分配器ユニット４６と、制御ユニット４４と、ブレーカユニット４２とを含んで構成される。これらの各要素は、二次電池収納システムラック１０の二次電池ブロック１２０と外部との間の充放電を行う場合の電力の流れに沿うように、電力線１００に接続される電力分配器ユニット４６を最も上方に、電力分配器ユニット４６とブレーカユニット４２を制御する制御ユニット４４を真ん中に、二次電池ブロック１２０に接続されるブレーカユニット４２は最も下方に配置される。これにより、各要素を接続する配線を短くすることができるため、配線抵抗による電力損失を抑制することができる。 The circuit block 40 includes a power distributor unit 46, a control unit 44, and a breaker unit 42. Each of these elements is a power distributor unit 46 connected to the power line 100 so as to follow the flow of power when charging / discharging between the secondary battery block 120 of the secondary battery storage system rack 10 and the outside. The breaker unit 42 connected to the secondary battery block 120 is disposed at the lowermost position, with the control unit 44 controlling the power distributor unit 46 and the breaker unit 42 in the middle. Thereby, since the wiring which connects each element can be shortened, the power loss by wiring resistance can be suppressed.
　電力分配器ユニット４６は、電力線１００を介して外部から入力された入力電力を充電電力として変換し、また、二次電池ブロック１２０の放電電力を出力電力として変換し、電力線１００を介して外部に出力する機能を有している。 The power distributor unit 46 converts input power input from the outside via the power line 100 as charging power, converts the discharge power of the secondary battery block 120 as output power, and outputs the power via the power line 100 to the outside. It has a function to output.
　電力分配器ユニット４６よりも下方に配置される制御ユニット４４は、充放電制御部８０と、消火制御部８２とを含んで構成される。充放電制御部８０は、充放電指令信号線１０２によって伝送されてくる充放電指令によって、外部と二次電池ブロック１２０との間で電力の充放電がなされるように、電力分配器ユニット４６を制御する機能を有する。また、消火制御部８２は、外部警報信号線１０４から伝送される外部警報信号等に基づいて、消火装置２０から二次電池ブロック１２０に消火剤を供給させるように消火装置２０を制御する機能を有する。制御ユニット４４の消火制御部８２の詳細な機能は後述する。なお、制御ユニット４４と電力分配器ユニット４６とは信号線１０８で接続され、制御ユニット４４とブレーカユニット４２とは信号線１１０で接続されている。 The control unit 44 disposed below the power distributor unit 46 includes a charge / discharge control unit 80 and a fire extinguishing control unit 82. The charge / discharge control unit 80 controls the power distributor unit 46 so that power is charged / discharged between the outside and the secondary battery block 120 according to the charge / discharge command transmitted through the charge / discharge command signal line 102. It has a function to control. Further, the fire extinguishing control unit 82 has a function of controlling the fire extinguishing device 20 so that the fire extinguishing device 20 supplies the secondary battery block 120 with the fire extinguishing agent based on an external alarm signal transmitted from the external alarm signal line 104 or the like. Have. Detailed functions of the fire extinguishing control unit 82 of the control unit 44 will be described later. The control unit 44 and the power distributor unit 46 are connected by a signal line 108, and the control unit 44 and the breaker unit 42 are connected by a signal line 110.
　制御ユニット４４よりも下方に配置されるブレーカユニット４２は、制御ユニット４４の制御によって接続／遮断制御がなされる。 The breaker unit 42 arranged below the control unit 44 is connected / disconnected by the control of the control unit 44.
　ブレーカユニット４２よりも下方に配置される二次電池ブロック１２０は、充放電を行う複数の二次電池１４０と、各二次電池１４０の間における熱伝導を抑制するための耐火断熱板材１３４とを含んで構成される。二次電池１４０として、例えば、炭素物質で構成された負極と、リチウムイオンが移動するための電解液と、リチウムイオンを可逆的に出し入れできる正極活物質とを有するリチウムイオン二次電池を用いることができる。耐火断熱板材１３４としては、例えば、耐火性・断熱効果・強度に優れているケイ酸カルシウム板を用いることができる。なお、二次電池ブロック１２０における二次電池１４０と耐火断熱板材１３４の配置関係については後述する。 The secondary battery block 120 disposed below the breaker unit 42 includes a plurality of secondary batteries 140 that perform charging and discharging, and a refractory heat insulating plate 134 for suppressing heat conduction between the secondary batteries 140. Consists of including. As the secondary battery 140, for example, a lithium ion secondary battery having a negative electrode made of a carbon material, an electrolytic solution for moving lithium ions, and a positive electrode active material capable of reversing lithium ions can be used. Can do. As the fireproof heat insulating plate 134, for example, a calcium silicate plate excellent in fire resistance, heat insulating effect, and strength can be used. The arrangement relationship between the secondary battery 140 and the refractory heat insulating plate 134 in the secondary battery block 120 will be described later.
　また、各二次電池１４０は、ブレーカユニット４２と信号線１１４を介して接続される電極と、内部の温度状態を検知する温度センサ１４２とを含んで構成される。そして、当該温度センサ１４２は、それぞれ信号線１１２によって制御ユニット４４に接続され、制御ユニット４４にそれぞれの温度信号（温度情報）を伝送している。 Each secondary battery 140 includes an electrode connected to the breaker unit 42 via the signal line 114, and a temperature sensor 142 that detects an internal temperature state. The temperature sensors 142 are connected to the control unit 44 by signal lines 112 and transmit temperature signals (temperature information) to the control unit 44.
　第１煙センサ９０と第２煙センサ９２は、万一、二次電池１４０が所定の許容温度を超えて異常状態となって発火したとき、それによって発生する煙を検知するための煙検知センサである。第１煙センサ９０は、収納本体部１２の内部で二次電池ブロック１２０が配置される上部領域に配置され、第２煙センサ９２は、収納本体部１２の内部で最上部の近傍に配置される。第１煙センサ９０と第２煙センサ９２の検知結果は、回路ブロック４０の制御ユニット４４に伝送される。 The first smoke sensor 90 and the second smoke sensor 92 are configured to detect smoke generated by the secondary battery 140 when the secondary battery 140 exceeds a predetermined allowable temperature and ignites in an abnormal state. It is. The first smoke sensor 90 is disposed in the upper region where the secondary battery block 120 is disposed inside the storage body 12, and the second smoke sensor 92 is disposed in the vicinity of the uppermost portion inside the storage body 12. The The detection results of the first smoke sensor 90 and the second smoke sensor 92 are transmitted to the control unit 44 of the circuit block 40.
　消火装置２０は、収納本体部１２の天井部の上側に載置される消火設備として機能する。消火装置２０は、消火剤コントロールユニット２２と、消火剤タンク２４と、消火剤供給弁２６と、消火剤供給配管２８とを含んで構成される。 The fire extinguishing device 20 functions as a fire extinguishing facility placed on the upper side of the ceiling portion of the storage main body 12. The fire extinguisher 20 includes a fire extinguisher control unit 22, a fire extinguisher tank 24, a fire extinguisher supply valve 26, and a fire extinguisher supply pipe 28.
　消火剤タンク２４は、消火剤を貯蔵するタンクである。消火剤供給配管２８は、二次電池ブロック１２０に向かって延伸し、その先端部分に取り付けられた噴射口１５０から消火剤タンク２４の消火剤を二次電池ブロック１２０に対して供給するための配管である。ここで、消火剤タンク２４に充填される消火剤は、単位体積あたりの質量が空気の単位体積当りの質量よりも大きく、電気的絶縁性を有するものが用いられ、例えば、噴射後に熱分解によって揮発性のトリフルオロメチル基（ＣＦ3 *）を発生するＣＦ3ＣＦ2Ｃ（Ｏ）ＣＦ（ＣＦ3)2を用いることができる。 The fire extinguisher tank 24 is a tank for storing a fire extinguisher. The extinguishing agent supply pipe 28 extends toward the secondary battery block 120 and is a pipe for supplying the extinguishing agent in the extinguishing agent tank 24 to the secondary battery block 120 from the injection port 150 attached to the tip portion thereof. It is. Here, as the extinguishing agent filled in the extinguishing agent tank 24, one having a mass per unit volume larger than the mass per unit volume of air and having electrical insulation is used, for example, by thermal decomposition after injection. CF 3 CF 2 C (O) CF (CF 3 ) 2 that generates a volatile trifluoromethyl group (CF 3 * ) can be used.
　消火剤供給弁２６は、開弁したときに、消火剤タンク２４から消火剤供給配管２８に消火剤を供給させることを許容し、閉弁したときに、消火剤タンク２４から消火剤供給配管２８に消火剤を供給させることを停止する。なお、消火剤供給弁２６は、消火剤コントロールユニット２２によって開閉弁制御がなされる。 The fire extinguishing agent supply valve 26 allows the extinguishing agent to be supplied from the extinguishing agent tank 24 to the extinguishing agent supply pipe 28 when the valve is opened, and when the valve is closed, the extinguishing agent supply pipe 28 from the extinguishing agent tank 24. Stop supplying the extinguishing agent to the machine. The fire extinguisher supply valve 26 is controlled to be opened and closed by the fire extinguisher control unit 22.
　消火剤コントロールユニット２２は、外部警報信号線１０４を介して入力される消火開始信号を示す外部警報信号、あるいは、制御ユニット４４からの消火開始信号があったときに消火剤供給弁２６を開弁する。また、消火剤コントロールユニット２２は、制御ユニット４４からの消火終了信号があったときに、消火剤供給弁２６を閉弁する。 The fire extinguisher control unit 22 opens the fire extinguisher supply valve 26 when an external alarm signal indicating a fire extinguishing start signal input via the external alarm signal line 104 or a fire extinguishing start signal from the control unit 44 is received. To do. The fire extinguisher control unit 22 closes the fire extinguisher supply valve 26 when a fire extinguishing end signal is received from the control unit 44.
　吸気弁９４と排気弁９６は、収納本体部１２の天井部に取り付けられ、二次電池ブロック１２０に異常が生じ、消火装置２０が作動した後で、消火後の使用済み消火剤を図示しない外部の吸引ポンプによって吸引排気させるために用いられる開閉弁である。吸気弁９４と排気弁９６の動作は、回路ブロック４０の制御ユニット４４の下で制御される。具体的には、通常時には吸気弁９４も排気弁９６も閉弁とされ、消火後に、吸気弁９４が開弁されて大気に対し開放され、排気弁９６が開弁されて図示しない吸引ポンプに接続される。これによって、吸気弁９４から収納本体部１２の内部に空気が取り込まれ、空気と共に使用済み消火剤が排気弁９６を介して吸引ポンプによって外部に排出される。 The intake valve 94 and the exhaust valve 96 are attached to the ceiling of the storage main body 12, and after the fire extinguishing device 20 is activated after the secondary battery block 120 is abnormal, the used fire extinguisher after the extinguishing is not illustrated. It is an on-off valve used for suctioning and exhausting by a suction pump. The operation of the intake valve 94 and the exhaust valve 96 is controlled under the control unit 44 of the circuit block 40. Specifically, the intake valve 94 and the exhaust valve 96 are normally closed at the normal time, and after the fire is extinguished, the intake valve 94 is opened and opened to the atmosphere, and the exhaust valve 96 is opened to a suction pump (not shown). Connected. As a result, air is taken into the storage main body 12 from the intake valve 94, and the used extinguishing agent together with the air is discharged to the outside through the exhaust valve 96 by the suction pump.
　避圧弁９８は、収納本体部１２の内部圧力が予め定められた所定の圧力値を超えたときに、開弁して収納本体部１２の圧力値を正常化する弁である。 The pressure-reducing valve 98 is a valve that opens to normalize the pressure value of the storage body 12 when the internal pressure of the storage body 12 exceeds a predetermined pressure value.
　ここで、図４を用いて二次電池１４０と耐火断熱板材１３４との配置関係について説明する。図４は、二次電池１４０と耐火断熱板材１３４の配置を示す詳細図である。図４の下段には、正面扉１４を開いた状態の収納本体部１２の下側部分の様子が示され、図４の上段には、正面扉１４を閉じた状態の収納本体部１２において１つの二次電池１４０の上方から下方を見た平面図が示されている。 Here, the arrangement relationship between the secondary battery 140 and the refractory heat insulating plate 134 will be described with reference to FIG. FIG. 4 is a detailed view showing the arrangement of the secondary battery 140 and the refractory heat insulating plate 134. The lower part of FIG. 4 shows the state of the lower part of the storage main body 12 with the front door 14 open, and the upper part of FIG. 4 shows 1 in the storage main body 12 with the front door 14 closed. The top view which looked at the downward direction from the upper direction of the two secondary batteries 140 is shown.
　支柱１２１，１２３，１２５，１２７は、収納本体部１２の内部の４隅にそれぞれ１本ずつ立てられ、収納本体部１２の底面にしっかりと固定されている柱材である。支柱１２１，１２３，１２５，１２７は、二次電池ブロック１２０を構成する要素と回路ブロック４０を配置する取付柱としての機能を有する。支柱１２１，１２３，１２５，１２７は、必要に応じ、収納本体部１２の天井部まで延ばして、柱材としての固定性を向上させることができる。かかる柱材１２１，１２３，１２５，１２７は、耐火性と適当な強度を有する材料を柱形状に成形したもの、例えば、金属製の柱、パイプ等を用いることができる。図４の例では角柱が用いられているが、多角形柱、円柱等であってもよい。 The pillars 121, 123, 125, 127 are column members that are respectively set up at four corners inside the storage body 12 and are firmly fixed to the bottom surface of the storage body 12. The columns 121, 123, 125, 127 have a function as mounting columns for arranging the elements constituting the secondary battery block 120 and the circuit block 40. The support columns 121, 123, 125, and 127 can be extended to the ceiling portion of the storage main body portion 12 as necessary to improve the fixing property as the pillar material. As the column members 121, 123, 125, and 127, a material having fire resistance and appropriate strength formed into a column shape, for example, a metal column, a pipe, or the like can be used. In the example of FIG. 4, a prism is used, but a polygonal column, a cylinder, or the like may be used.
　棚受材１３０，１３２は、向かい合う２本の柱材に差し渡されて、その上に棚板を置いたときにそれを支持する機能を有する棒材である。図４の例では、支柱１２１と支柱１２５の間に棚受材１３０が差し渡されて固定され、支柱１２３と支柱１２７の間に棚受材１３２が差し渡されて固定される。この一対の棚受材１３０，１３２の高さ位置を同じとすることで、この一対の棚受材１３０，１３２の間に、耐火断熱板材１３４を棚板としてこれを水平に配置できる。 The shelf support members 130 and 132 are bar members that have a function of supporting a shelf board when placed on two pillar members facing each other and placing a shelf board thereon. In the example of FIG. 4, the shelf support member 130 is passed and fixed between the support column 121 and the support column 125, and the shelf support material 132 is passed and fixed between the support column 123 and the support column 127. By making the height positions of the pair of shelf receiving materials 130 and 132 the same, it is possible to horizontally arrange the fireproof heat insulating plate material 134 as a shelf plate between the pair of shelf receiving materials 130 and 132.
　棚受材１３０，１３２は、支柱１２１，１２３，１２５，１２７の高さ方向に沿って、予め定めた間隔で取り付けられる。予め定めた間隔は、二次電池１４０の直方体の高さに比べて十分大きな寸法の間隔として設定される。かかる棚受材１３０，１３２は、耐火性を有する材料で構成された棒材を用いることができる。例えば、金属丸棒を用いることができる。 The shelf support members 130 and 132 are attached at predetermined intervals along the height direction of the columns 121, 123, 125, and 127. The predetermined interval is set as an interval having a dimension sufficiently larger than the height of the rectangular parallelepiped of the secondary battery 140. As the shelf receiving materials 130 and 132, a bar made of a material having fire resistance can be used. For example, a metal round bar can be used.
　これによって、収納本体部１２の内部の二次電池ブロック１２０において、上下方向に予め定められた間隔で、複数の棚板を配置することができる。図４の下段の図では、３対の棚受材１３０，１３２が図示されている。 Thereby, in the secondary battery block 120 inside the storage main body 12, a plurality of shelf boards can be arranged at predetermined intervals in the vertical direction. In the lower diagram of FIG. 4, three pairs of shelf support members 130 and 132 are illustrated.
　耐火断熱板材１３４は、棚受材１３０，１３２を用いて、その上に配置される棚板である。図４の上段に示されるように、耐火断熱板材１３４は、収納本体部１２の側壁部材１２２，１２４，１２６と正面扉１４の内壁面によって囲まれる内部空間の面積から、側壁部材１２２，１２４，１２６側に適当な空間を残して、その他の部分を覆うのに十分な大きさを有する。適当な空間とは、図３に関連して説明した信号線１１２、１１４、消火剤供給配管２８を通し、また、吸気弁９４と排気弁９６が作動したときの吸気と排気を行うのに十分な余裕空間のことである。例えば、側壁部材１２２，１２４，１２６側から数ｃｍの隙間をあけて、この隙間空間１７０を上記の適当な空間とすることができる。ここで、隙間空間１７０は、例えば、収納本体部１２の側壁部材１２２，１２４の内壁面と耐火断熱板材１３４の外側面１８３に沿った面との間に形成される空間とすることができる。また、隙間空間１７０は、例えば、収納本体部１２の側壁部材１２２，１２４の内壁面と各支柱１２１，１２３，１２５，１２７の外側面１８１に沿った面との間に形成される空間としてもよい。さらに、図４に示されるように、隙間空間１７０は、二次電池ブロック１２０が配置される領域の外側の空間である。 The refractory heat insulating board 134 is a shelf arranged on the shelf receiving members 130 and 132. As shown in the upper part of FIG. 4, the fireproof and heat insulating plate 134 is formed from the area of the inner space surrounded by the side wall members 122, 124, 126 of the storage main body 12 and the inner wall surface of the front door 14. It is large enough to cover other parts, leaving a suitable space on the 126 side. The appropriate space is sufficient to perform intake and exhaust when the intake valve 94 and the exhaust valve 96 are operated through the signal lines 112 and 114 and the fire extinguishing agent supply pipe 28 described with reference to FIG. It is a large spare space. For example, a gap of several centimeters is formed from the side wall member 122, 124, 126 side, and the gap space 170 can be set as the appropriate space. Here, the gap space 170 can be, for example, a space formed between the inner wall surface of the side wall members 122 and 124 of the storage main body 12 and the surface along the outer surface 183 of the refractory heat insulating plate member 134. Further, the gap space 170 may be a space formed between the inner wall surface of the side wall members 122 and 124 of the storage main body 12 and the surface along the outer side surface 181 of each column 121, 123, 125, 127. Good. Furthermore, as shown in FIG. 4, the gap space 170 is a space outside the region where the secondary battery block 120 is disposed.
　耐火断熱板材１３４は、具体的には、平面形状が矩形形状の４隅を切り欠いた形状を有する。４隅の切り欠きは、支柱１２１，１２３，１２５，１２７を通すために設けられるものである。矩形形状の大きさは、二次電池１４０の直方体の平面寸法よりも十分大きく設定される。例えば、二次電池１４０の直方体の平面寸法を約４５ｃｍ×約４５ｃｍとし、上記の例で、収納本体部１２の底面寸法を約７０ｃｍ×約７０ｃｍとして、側壁部材の厚さを数ｍｍとし、上記の余裕空間を数ｃｍとするときは、耐火断熱板材１３４の矩形形状寸法を約６０ｃｍ×約６０ｃｍ程度とすることができる。勿論、これ以外の寸法とすることもできる。なお、図４の上段の平面図に示されるように、二次電池１４０は、耐火断熱板材１３４の平面寸法の範囲内に配置されている。 Specifically, the fireproof heat insulating plate 134 has a shape in which four corners of a rectangular planar shape are cut out. The cutouts at the four corners are provided for passing the columns 121, 123, 125, 127. The size of the rectangular shape is set sufficiently larger than the planar dimension of the rectangular parallelepiped of the secondary battery 140. For example, the planar size of the rectangular parallelepiped of the secondary battery 140 is about 45 cm × about 45 cm, and in the above example, the bottom surface size of the storage main body 12 is about 70 cm × about 70 cm, the thickness of the side wall member is several mm, When the marginal space is several cm, the rectangular shape of the refractory heat insulating plate 134 can be about 60 cm × about 60 cm. Of course, other dimensions can be used. As shown in the upper plan view of FIG. 4, the secondary battery 140 is disposed within the range of the planar dimensions of the refractory heat insulating plate 134.
　耐火断熱板材１３４には、ケイ酸カルシウム板を、上記の形状に成形または加工したものを用いることができる。耐火断熱板材１３４は、耐火性、断熱性、適当な強度を有することが必要であるので、上記のように、板厚方向には加工孔等の不必要な開口部を有しない平板である。なお、ケイ酸カルシウム板の強度を補強するために、断熱性を損なわない程度に、適当な厚さの金属薄板等を用いて積層構造としてもよい。 As the fireproof heat insulating plate material 134, a calcium silicate plate formed or processed into the above shape can be used. Since the fireproof heat insulating plate material 134 needs to have fire resistance, heat insulating properties, and appropriate strength, as described above, it is a flat plate that does not have unnecessary openings such as processed holes in the plate thickness direction. In addition, in order to reinforce the strength of the calcium silicate plate, a laminated structure may be used by using a metal thin plate having an appropriate thickness to the extent that the heat insulation is not impaired.
　上記のように、棚受材１３０，１３２は、上下方向に予め定められた間隔で配置されるので、耐火断熱板材１３４も、収納本体部１２の内部の二次電池ブロック１２０において、上下方向に予め定められた間隔で、複数枚配置できる。これによって、収納本体部１２の内部の二次電池ブロック１２０を、上下を耐火断熱板材１３４で仕切られた複数の空間に区分できる。なお、図４では、耐火断熱板材１３４が収納本体部１２の底面にも１枚敷かれている例が示されているが、例えば、底面側に信号線、回路部品等が配置される場合には、このようにすることが好ましい。 As described above, since the shelf support members 130 and 132 are arranged at predetermined intervals in the vertical direction, the refractory heat insulating plate material 134 is also arranged in the vertical direction in the secondary battery block 120 inside the storage body 12. A plurality of sheets can be arranged at predetermined intervals. As a result, the secondary battery block 120 inside the storage main body 12 can be divided into a plurality of spaces partitioned by the fireproof and heat insulating plate material 134 in the upper and lower sides. FIG. 4 shows an example in which one piece of fireproof heat insulating plate 134 is also laid on the bottom surface of the storage main body 12. For example, when signal lines, circuit components, etc. are arranged on the bottom surface side. It is preferable to do so.
　二次電池１４０は、耐火断熱板材１３４によって上下を仕切られて区分された空間に１つずつ配置されるリチウムイオン二次電池である。１つずつとは、制御ユニット４４によって制御できる１つの単位を示し、例えば、ブレーカユニット４２によって他の二次電池１４０と区別して遮断できる単位である。図３の例では、６つの二次電池１４０が、耐火断熱板材１３４によって上下を仕切られて区分された空間に１つずつ配置されているが、この６つの二次電池１４０は、それぞれが１つずつ独立的に、ブレーカユニット４２によって充放電状態を遮断できるようにされている。 The secondary batteries 140 are lithium ion secondary batteries that are arranged one by one in a space partitioned by a fireproof heat insulating plate material 134. “One by one” means one unit that can be controlled by the control unit 44, for example, a unit that can be distinguished from other secondary batteries 140 by the breaker unit 42. In the example of FIG. 3, six secondary batteries 140 are arranged one by one in a space partitioned by a fireproof heat insulating plate material 134, and each of the six secondary batteries 140 is 1 The charge / discharge state can be interrupted by the breaker unit 42 independently.
　支持部材１３６，１３８は、二次電池１４０を耐火断熱板材１３４から空間的に離間して隙間を介して配置されるように、頂面である電池支持面と、耐火断熱板材１３４との離間のための脚部とを有するＬ字形状の折り曲げ板部材である。支持部材１３６は、Ｌ字形状の頂面である電池支持面を水平になるように脚部が支柱１２１，１２５に取り付けられ、支持部材１３８は、電池支持面を水平になるように脚部が支柱１２３，１２７に取り付けられる。取付に際しては、支持部材１３６の電池支持面の高さ位置と支持部材１３８の電池支持面の高さ位置が同じとなるように設定される。これにより、一対の支持部材１３６，１３８のそれぞれの電池支持面によって、二次電池１４０の底面側を支持することができる。 The support members 136 and 138 are spaced apart from the battery support surface, which is the top surface, and the refractory heat insulating plate material 134 so that the secondary battery 140 is spatially separated from the refractory heat insulating plate material 134 via a gap. It is the L-shaped bending board member which has a leg part for. The support member 136 has legs attached to the columns 121 and 125 so that the battery support surface, which is an L-shaped top surface, is horizontal, and the support member 138 has legs so that the battery support surface is horizontal. Attached to the columns 123 and 127. At the time of attachment, the height position of the battery support surface of the support member 136 and the height position of the battery support surface of the support member 138 are set to be the same. Accordingly, the bottom surface side of the secondary battery 140 can be supported by the battery support surfaces of the pair of support members 136 and 138.
　支持部材１３６，１３８の支柱１２１，１２３，１２５，１２７に対する取付位置は、その電池支持面に二次電池１４０を置いて支持したときに、二次電池１４０の上面と、その上方に配置される耐火断熱板材１３４の下面との間に適当な上方側空間的隙間が形成されるように、また、二次電池１４０の下面と、その下方に配置される耐火断熱板材１３４の上面との間に適当な下方側空間的隙間が形成されるように設定される。これにより、二次電池１４０は、その上下に配置される耐火断熱板材１３４に対し、空間的に離間しているように配置される。この空間的な離間によって、二次電池１４０の周囲の空気の流通をよくし、隣接する二次電池１４０の間の熱伝導が小さくなると共に、消火剤の導入が容易になる。また、図３～５に示されるように、各二次電池１４０と各耐火断熱板材１３４は、重力方向Ｇに沿って配置されることとなる。 The attachment positions of the support members 136 and 138 with respect to the columns 121, 123, 125, and 127 are arranged above and above the upper surface of the secondary battery 140 when the secondary battery 140 is placed and supported on the battery support surface. In addition, an appropriate upper spatial gap is formed between the lower surface of the fireproof heat insulating plate 134 and between the lower surface of the secondary battery 140 and the upper surface of the fireproof heat insulating plate 134 disposed below the secondary battery 140. It is set so that an appropriate lower spatial gap is formed. Thereby, the secondary battery 140 is arrange | positioned so that it may space apart with respect to the fireproof heat insulation board | plate material 134 arrange | positioned at the upper and lower sides. This spatial separation improves the circulation of air around the secondary battery 140, reduces the heat conduction between the adjacent secondary batteries 140, and facilitates the introduction of a fire extinguishing agent. Further, as shown in FIGS. 3 to 5, each secondary battery 140 and each refractory heat insulating plate 134 are arranged along the gravity direction G.
　このように、二次電池１４０は、上方側空間的隙間と下方側空間的隙間によって、耐火断熱板材１３４を含め、他の要素と離隔しており、空気の熱伝導率は固体に比べ小さいので、１つの二次電池１４０に発熱が生じても、他の二次電池１４０に対する熱伝導を効果的に抑制することができる。 Thus, the secondary battery 140 is separated from other elements including the refractory heat insulating plate 134 by the upper spatial gap and the lower spatial gap, and the thermal conductivity of air is smaller than that of the solid. Even if heat is generated in one secondary battery 140, heat conduction to the other secondary batteries 140 can be effectively suppressed.
　また、二次電池１４０は、耐火断熱板材１３４によって上下を仕切られて区分された空間に１つずつ配置されているので、仮に１つの二次電池１４０が発火しても、耐火断熱板材１３４によって、他の二次電池１４０にその影響が及ぶことを効果的に抑制できる。 In addition, since the secondary batteries 140 are arranged one by one in a space partitioned by the fire-resistant and heat-insulating plate 134, even if one secondary battery 140 is ignited, the fire-resistant and heat-insulating plate 134 It is possible to effectively suppress the influence on other secondary batteries 140.
　このように、耐火断熱板材１３４によって上下を仕切られて区分された空間に、二次電池１４０を１つずつ、耐火断熱板材１３４から空間的に離間して配置することで、複数の二次電池１４０の１つに発熱異常が発生した場合でも、その二次電池１４０の発熱異常に留めて、他の二次電池１４０の発熱異常の発生を抑制することができる。そして、万一、１つの二次電池１４０に発火が生じた場合でも、耐火断熱板材１３４の耐火性によって、その二次電池１４０の発火に留めて、他の二次電池１４０へ発火が進展することを抑制することができる。 In this manner, a plurality of secondary batteries are arranged by spatially separating the secondary batteries 140 from the fireproof and heat insulating plate 134 one by one in the space partitioned by the fireproof and heat insulating plate 134. Even when a heat generation abnormality occurs in one of the 140, it is possible to suppress the heat generation abnormality of the other secondary battery 140 by suppressing the heat generation abnormality of the secondary battery 140. Even if one secondary battery 140 is ignited, the fire resistance of the refractory heat insulating plate 134 keeps the secondary battery 140 ignited, and the ignition proceeds to the other secondary battery 140. This can be suppressed.
　続いて、二次電池収納システムラック１０の制御ユニット４４の消火制御部８２の動作について、図１～図５を用いて説明する。図５は、二次電池収納システムラック１０において、二次電池ブロック１２０が万一発火した場合に消火する手順を示すタイミングチャートである。図５において、複数の二次電池１４０のうち、異常をきたした二次電池１４０の温度変化をＢＴＡ（Ｂａｔｔｅｒｙ　Ｔｅｍｐｅｒａｔｕｒｅ　Ａｂｎｏｒｍａｌ）として示している。また、図５において、異常をきたした二次電池１４０の近傍に配置されているが、正常状態を保ったままの二次電池１４０の温度変化をＢＴＡと比較するためにＢＴＮ（Ｂａｔｔｅｒｙ　Ｔｅｍｐｅｒａｔｕｒｅ　Ｎｏｒｍａｌ）として示している。ここで、Ｔ0は、充放電停止用閾値温度を示し、Ｔ1は、Ｔ0よりも高い温度である異常信号発生用閾値温度を示し、Ｔ2は、Ｔ1よりもさらに高い温度である消火用閾値温度を示している。なお、以下では二次電池ブロック１２０の各二次電池１４０のうち、１つの二次電池１４０のみが異常状態（ＢＴＡ）と変化するが、その他の二次電池１４０は正常状態（ＢＴＮ）のままであるものとして説明する。 Next, the operation of the fire extinguishing control unit 82 of the control unit 44 of the secondary battery storage system rack 10 will be described with reference to FIGS. FIG. 5 is a timing chart showing a procedure for extinguishing fire in the case where the secondary battery block 120 is ignited in the secondary battery storage system rack 10. In FIG. 5, the temperature change of the secondary battery 140 in which the abnormality occurs among the plurality of secondary batteries 140 is shown as BTA (Battery Temperature Abnormal). Further, in FIG. 5, BTN (Battery Temperature Normal) is provided in order to compare the temperature change of the secondary battery 140 which is disposed in the vicinity of the abnormal secondary battery 140 while maintaining the normal state with BTA. As shown. Here, T 0 indicates a charge / discharge stop threshold temperature, T 1 indicates an abnormal signal generation threshold temperature that is higher than T 0 , and T 2 is a temperature higher than T 1. The threshold temperature for fire extinguishing is shown. In the following, among the secondary batteries 140 of the secondary battery block 120, only one secondary battery 140 changes to an abnormal state (BTA), but the other secondary batteries 140 remain in a normal state (BTN). It is assumed that
　図５に示されるように、二次電池ブロック１２０の各二次電池１４０のうち異常をきたした二次電池１４０の温度変化を示すＢＴＡは、時刻ｔ1のときに充放電停止用閾値温度Ｔ0よりも高くなる。このとき、消火制御部８２は、信号線１１２によって伝送されてくる温度信号のうち少なくとも１つが異常状態であると判断する。そして、消火制御部８２は、少なくとも１つの二次電池ブロック１２０に異常が発生している可能性があるとして、ブレーカユニット４２を遮断制御することで二次電池ブロック１２０に対する充放電制御を停止する。なお、複数の二次電池１４０が異常温度へと変化する場合には、最も早い時刻に充放電停止用閾値温度Ｔ0に到達した時刻に、ブレーカユニット４２を遮断制御する。 As shown in FIG. 5, the BTA indicating the temperature change of the secondary battery 140 that has malfunctioned among the secondary batteries 140 of the secondary battery block 120 is the threshold temperature T for charging / discharging stop at time t 1. Higher than 0 . At this time, the fire extinguishing control unit 82 determines that at least one of the temperature signals transmitted through the signal line 112 is in an abnormal state. And the fire extinguishing control part 82 stops charging / discharging control with respect to the secondary battery block 120 by carrying out cutoff control of the breaker unit 42 supposing that the abnormality may have generate | occur | produced in the at least 1 secondary battery block 120. . When the plurality of secondary batteries 140 change to an abnormal temperature, the breaker unit 42 is controlled to be cut off at the time when the charge / discharge stop threshold temperature T 0 is reached at the earliest time.
　その後、ＢＴＡは、一旦上昇した温度が下降し、時刻ｔ2のときに再び充放電停止用閾値温度Ｔ0よりも低くなる。このとき、消火制御部８２は、二次電池ブロック１２０に異常が発生している可能性がなくなったものとして、ブレーカユニット４２を接続制御することで二次電池ブロック１２０に対する充放電制御を再開する。このように、充放電停止用閾値温度Ｔ0を一旦上回った後に、再び充放電停止用閾値温度Ｔ0を下回る場合に充放電制御を再開するのは、二次電池ブロック１２０が許容温度範囲内の正常状態であるにもかかわらず、何らかの原因で一時的に温度が上昇してしまい、誤って異常状態であるとして処理してしまうことに対する対策が必要であるからである。なお、複数の二次電池１４０が異常温度へと変化する場合には、全ての温度が充放電停止用閾値温度Ｔ0よりも低くなった時刻に、二次電池ブロック１２０に対する充放電制御を再開する。 After that, the temperature of the BTA that has once increased decreases and becomes lower than the threshold temperature T 0 for stopping charging / discharging again at time t 2 . At this time, the fire extinguishing control unit 82 resumes the charge / discharge control for the secondary battery block 120 by controlling the connection of the breaker unit 42, assuming that there is no possibility of abnormality in the secondary battery block 120. . As described above, the charge / discharge control is resumed when the charge / discharge stop threshold temperature T 0 is once again lower than the charge / discharge stop threshold temperature T 0 after the temperature exceeds the charge / discharge stop threshold temperature T 0 once. This is because it is necessary to take measures against the fact that the temperature temporarily rises for some reason and is erroneously processed as being in an abnormal state in spite of the normal state. When a plurality of secondary batteries 140 change to an abnormal temperature, the charge / discharge control for the secondary battery block 120 is resumed at the time when all the temperatures are lower than the charge / discharge stop threshold temperature T 0. To do.
　次に、図５に示されるように、ＢＴＡは、時刻ｔ3のときに、再び、充放電停止用閾値温度Ｔ0よりも高くなる。このとき、消火制御部８２は、二次電池ブロック１２０に異常が発生している可能性があるとして、再び、ブレーカユニット４２を遮断制御することで二次電池ブロック１２０に対する充放電制御を停止する。その後、ＢＴＡは、時刻ｔ4のときに異常信号発生用閾値温Ｔ1よりも高くなる。このときは、充放電停止用閾値温度Ｔ0の場合と異なり、二次電池ブロック１２０に何らかの異常があるものとして、二次電池ブロック１２０に異常が発生していることを示す異常信号を、異常信号線１０６を介して外部に出力する。なお、複数の二次電池１４０が異常温度へと変化する場合には、最も早い時刻に異常信号発生用閾値温Ｔ1に到達した時刻に、異常信号を出力する。 Next, as shown in FIG. 5, BTA again becomes higher than the charge / discharge stop threshold temperature T 0 at time t 3 . At this time, the fire extinguishing control unit 82 stops charging / discharging control for the secondary battery block 120 by controlling the breaker unit 42 again, assuming that the secondary battery block 120 may be abnormal. . Thereafter, the BTA becomes higher than the abnormal signal generation threshold temperature T 1 at time t 4 . At this time, unlike the case of the charge / discharge stop threshold temperature T 0 , it is assumed that there is some abnormality in the secondary battery block 120 and an abnormal signal indicating that an abnormality has occurred in the secondary battery block 120 is abnormal. Output to the outside via the signal line 106. When a plurality of secondary batteries 140 change to an abnormal temperature, an abnormal signal is output at the time when the abnormal signal generation threshold temperature T 1 is reached at the earliest time.
　ところで、図５に示されるように、時刻ｔ5のときに、第１煙センサ９０あるいは第２煙センサ９２の少なくともいずれか１つが二次電池ブロック１２０の発火により発生した煙を検知したとしてＬｏｗ信号からＨｉｇｈ信号へと変化している。このとき、消火制御部８２は、吸気ファン部３２のファンを停止するとともに、吸気側シャッタ１８２によって吸気ファン部３２の吸気口を閉塞するように吸気側シャッタ１８２をスライドさせる。さらに、消火制御部８２は、排気ファン部３０のファンを停止するとともに、排気側シャッタ１８０によって排気ファン部３０の排気口を閉塞するように排気側シャッタ１８０をスライドさせる。それらが行われた後で、消火制御部８２は、消火剤コントロールユニット２２に対して消火開始信号を出力する。なお、第１煙センサ９０及び第２煙センサ９２が煙を検知しない場合であってもＢＴＡの温度が時刻ｔ6において消火用閾値温度Ｔ2を上回るため、消火制御部８２は、上記と同様の処理を行う。なお、複数の二次電池１４０が異常温度へと変化する場合には、最も早い時刻に消火用閾値温度Ｔ2に到達した時刻に、消火開始信号を出力する。 Incidentally, as shown in FIG. 5, it is assumed that at time t 5 , at least one of the first smoke sensor 90 and the second smoke sensor 92 detects smoke generated by the ignition of the secondary battery block 120. The signal changes from a high signal to a high signal. At this time, the fire extinguishing control unit 82 stops the fan of the intake fan unit 32 and slides the intake side shutter 182 so that the intake side shutter 182 closes the intake port of the intake fan unit 32. Further, the fire extinguishing control unit 82 stops the fan of the exhaust fan unit 30 and slides the exhaust side shutter 180 so that the exhaust side shutter 180 closes the exhaust port of the exhaust fan unit 30. After these operations are performed, the fire extinguishing control unit 82 outputs a fire extinguishing start signal to the fire extinguisher control unit 22. Even if the first smoke sensor 90 and the second smoke sensor 92 do not detect smoke, the BTA temperature exceeds the fire extinguishing threshold temperature T 2 at time t 6 , so the fire extinguishing control unit 82 is the same as above. Perform the process. When the plurality of secondary batteries 140 change to an abnormal temperature, a fire extinguishing start signal is output at the time when the fire extinguishing threshold temperature T 2 is reached at the earliest time.
　その後、消火制御部８２は、消火装置２０による消火が開始されて十分な時間が経過したと考えられる時刻ｔ9において、消火剤コントロールユニット２２に対して消火終了信号を出力する。 Thereafter, the fire extinguishing control unit 82 outputs a fire extinguishing end signal to the fire extinguisher control unit 22 at a time t 9 when it is considered that a sufficient time has elapsed since the start of extinguishing by the fire extinguishing device 20.
　二次電池ブロック１２０に対する消火を終えた後、ＢＴＡの温度が下降し充放電停止用閾値温度Ｔ0を下回る時刻ｔ10において、消火制御部８２は、使用済みの消火剤を排出するために、吸気弁９４と排気弁９６を開弁し、吸気弁９４が大気に対し開放され、排気弁９６は図示しない吸引ポンプに接続される。これによって、吸気弁９４から収納本体部１２の内部に空気が取り込まれ、空気と共に使用済み消火剤が排気弁９６を介して吸引ポンプによって外部に排出される。なお、複数の二次電池１４０が異常温度へと変化する場合には、全ての温度が充放電停止用閾値温度Ｔ0よりも低くなった時刻に、使用済み消火剤の排気を行う。 After finishing the extinguishing of the secondary battery block 120, at time t 10 the temperature of the BTA is below the threshold temperature T 0 for charging and discharging stop descends, fire extinguishing control unit 82, for discharging the spent extinguishing agent, The intake valve 94 and the exhaust valve 96 are opened, the intake valve 94 is opened to the atmosphere, and the exhaust valve 96 is connected to a suction pump (not shown). As a result, air is taken into the storage main body 12 from the intake valve 94, and the used extinguishing agent together with the air is discharged to the outside through the exhaust valve 96 by the suction pump. When the plurality of secondary batteries 140 change to an abnormal temperature, the used extinguishing agent is exhausted at a time when all the temperatures are lower than the charging / discharging stop threshold temperature T 0 .
　上記のように、二次電池収納システムラック１０によれば、二次電池ブロック１２０の二次電池１４０に設けられる温度センサ１４２が検出した温度が消火用閾値温度Ｔ2よりも高くなったときに、消火装置２０の消火剤が二次電池ブロック１２０に対して供給されるため、万一二次電池１４０が発火した場合であっても消火することができる。 As described above, according to the secondary battery storage system rack 10, when the temperature of the temperature sensor 142 detects provided in the secondary battery 140 of the secondary battery block 120 is higher than the extinguishing threshold temperature T 2 Since the fire extinguisher of the fire extinguishing device 20 is supplied to the secondary battery block 120, the fire can be extinguished even if the secondary battery 140 is ignited.
　さらに、二次電池収納システムラック１０によれば、各二次電池ブロック１２０の温度センサ１４２が検出する温度のうちいずれか１つ（図５の例ではＢＴＡ）が充放電停止用閾値温度Ｔ0よりも高くなるときに、二次電池ブロック１２０への充放電が停止されるため、二次電池１４０の異常状態が悪化することを防止することができる。また、ＢＴＡが異常信号発生用閾値温Ｔ1よりも高くなるときに異常信号が異常信号線１０６を介して出力されるため、外部に対して二次電池ブロック１２０が異常状態であることを報知することができる。さらに、ＢＴＡが消火用閾値温度Ｔ2を超える場合、あるいは、第１煙センサ９０あるいは第２煙センサ９２が煙を検知した場合に、消火装置２０の消火剤が二次電池ブロック１２０に対して供給されるため、万一二次電池１４０が発火した場合であっても消火することができる。このように、各二次電池ブロック１２０の各温度センサ１４２からの温度情報に基づいて消火等の対応をしているため、二次電池１４０に製造バラツキがあった場合にもより好適に消火等の対応をすることができる。さらに、各二次電池１４０の温度情報に加えて、第１煙センサ９０、第２煙センサ９２のいずれか一方が煙を検知した場合に二次電池ブロック１２０に対して消火剤が供給されるため、より好適に二次電池ブロック１２０を消火することができる。 Further, according to the secondary battery storage system rack 10, any one of the temperatures detected by the temperature sensor 142 of each secondary battery block 120 (BTA in the example of FIG. 5) is the threshold temperature T 0 for charge / discharge stop. Since the charging / discharging to the secondary battery block 120 is stopped when it becomes higher than that, the abnormal state of the secondary battery 140 can be prevented from deteriorating. Further, when the BTA becomes higher than the abnormal signal generation threshold temperature T 1 , an abnormal signal is output through the abnormal signal line 106, so that the secondary battery block 120 is informed to the outside that it is in an abnormal state. can do. Further, when the BTA exceeds the fire extinguishing threshold temperature T 2 or when the first smoke sensor 90 or the second smoke sensor 92 detects smoke, the fire extinguisher of the fire extinguishing device 20 is applied to the secondary battery block 120. Therefore, even if the secondary battery 140 is ignited, it can be extinguished. As described above, since the countermeasures such as fire extinguishing are performed based on the temperature information from each temperature sensor 142 of each secondary battery block 120, the fire extinguishing more suitably even when there is a manufacturing variation in the secondary battery 140. Can be dealt with. Further, in addition to the temperature information of each secondary battery 140, when any one of the first smoke sensor 90 and the second smoke sensor 92 detects smoke, a fire extinguisher is supplied to the secondary battery block 120. Therefore, the secondary battery block 120 can be extinguished more suitably.
　１０　二次電池収納システムラック、１２　収納本体部、１４　正面扉、２０　消火装置、２２　消火剤コントロールユニット、２４　消火剤タンク、２６　消火剤供給弁、２８　消火剤供給配管、３０　排気ファン部、３２　吸気ファン部、４０　回路ブロック、４２　ブレーカユニット、４４　制御ユニット、４６　電力分配器ユニット、８０　充放電制御部、８２　消火制御部、９０　第１煙センサ、９２　第２煙センサ、９４　吸気弁、９６　排気弁、９８　避圧弁、１００　電力線、１０２　充放電指令信号線、１０４　外部警報信号線、１０６　異常信号線、１０８，１１０，１１２，１１４　信号線、１２０　二次電池ブロック、１２１，１２３，１２５，１２７　支柱、１２２，１２４，１２６　側壁部材、１３０，１３２　棚受材、１３４　耐火断熱板材、１３６，１３８　支持部材、１４０　二次電池、１４２　温度センサ、１５０　噴射口、１７０　隙間空間、１８０　排気側シャッタ、１８１，１８３　外側面、１８２　吸気側シャッタ。 10 secondary battery storage system rack, 12 storage main body, 14 front door, 20 fire extinguisher, 22 fire extinguisher control unit, 24 fire extinguisher tank, 26 fire extinguisher supply valve, 28 fire extinguisher supply piping, 30 exhaust fan section, 32 Intake fan unit, 40 circuit block, 42 breaker unit, 44 control unit, 46 power distributor unit, 80 charge / discharge control unit, 82 fire extinguishing control unit, 90 first smoke sensor, 92 second smoke sensor, 94 intake valve, 96 Exhaust valve, 98 pressure relief valve, 100 power line, 102 charge / discharge command signal line, 104 external alarm signal line, 106 abnormal signal line, 108, 110, 112, 114 signal line, 120 secondary battery block, 121, 123, 125, 127 strut, 122, 124, 126 sidewall member, 130, 13 Shelf receiving material, 134 insulating refractory plate, 136 supporting members, 140 secondary batteries, 142 temperature sensor, 150 ejection openings, 170 interstitial space, 180 exhaust side shutter, 181 and 183 the outer surface, 182 intake side shutter.

Claims (8)

  1. 　複数の二次電池と、隣接する前記二次電池の間に配置され前記二次電池の電池平面寸法より大きい板材平面寸法を有する板材とを含み、充放電を行う二次電池ブロックと、
    　前記二次電池ブロックに設けられる二次電池温度検知部と、
    　前記複数の二次電池のうち少なくとも１つに発熱異常が生じた際に前記二次電池ブロックの充放電を遮断する遮断回路と、
    　前記二次電池温度検知部が検出する温度が充放電停止用の閾値温度を超えたときに前記遮断回路が前記二次電池ブロックの充放電を遮断するように制御する制御部と、
    　を備える二次電池収納システムラック。     A secondary battery block that includes a plurality of secondary batteries and a plate material that is disposed between adjacent secondary batteries and has a plate material plane size larger than the battery plane size of the secondary battery, and performs charge and discharge;
    A secondary battery temperature detector provided in the secondary battery block;
    A shut-off circuit that shuts off charging / discharging of the secondary battery block when heat generation abnormality occurs in at least one of the plurality of secondary batteries;
    A controller that controls the interrupting circuit to interrupt charging / discharging of the secondary battery block when the temperature detected by the secondary battery temperature detecting unit exceeds a threshold temperature for stopping charging / discharging; and
    A secondary battery storage system rack comprising:
  2. 　請求項１に記載の二次電池収納システムラックにおいて、
    　消火が必要な際に前記二次電池ブロックに対して消火剤を供給する消火装置をさらに備え、
    　前記制御部は、
    　前記二次電池温度検知部が検出する温度が所定の消火用閾値温度を超えたときに、前記二次電池ブロックに前記消火剤を供給させるように前記消火装置を制御する二次電池収納システムラック。     The secondary battery storage system rack according to claim 1,
    A fire extinguishing device that supplies a fire extinguishing agent to the secondary battery block when fire extinguishing is necessary,
    The controller is
    A secondary battery storage system rack that controls the fire extinguishing device to supply the fire extinguishing agent to the secondary battery block when the temperature detected by the secondary battery temperature detection unit exceeds a predetermined fire extinguishing threshold temperature. .
  3. 　請求項２に記載の二次電池収納システムラックにおいて、
    　前記二次電池は、その上下に配置される前記板材に対し、空間的に離間して配置される二次電池収納システムラック。     The secondary battery storage system rack according to claim 2,
    The secondary battery is a secondary battery storage system rack that is disposed spatially separated from the plate members disposed above and below the secondary battery.
  4. 　請求項２または３に記載の二次電池収納システムラックにおいて、
    　前記二次電池温度検知部は、複数の温度センサを含み、
    　前記制御部は、
    　前記複数の温度センサが検出する温度のうち少なくとも１つの温度が前記消火用閾値温度を超えたときに、前記二次電池ブロックに前記消火剤を供給させるように前記消火装置を制御する二次電池収納システムラック。     The secondary battery storage system rack according to claim 2 or 3,
    The secondary battery temperature detection unit includes a plurality of temperature sensors,
    The controller is
    A secondary battery that controls the fire extinguishing device to supply the fire extinguishing agent to the secondary battery block when at least one temperature detected by the plurality of temperature sensors exceeds the fire extinguishing threshold temperature. Storage system rack.
  5. 　請求項４に記載の二次電池収納システムラックにおいて、
    　前記制御部は、
    　前記複数の温度センサが検出する温度のうち少なくとも１つの温度が前記充放電停止用閾値温度よりも高く前記消火用閾値温度よりも低い所定の異常信号発生用閾値温度を超えたときに、外部に対して前記二次電池ブロックが異常状態であることを示す異常信号を出力する二次電池収納システムラック。     The secondary battery storage system rack according to claim 4,
    The controller is
    When at least one of the temperatures detected by the plurality of temperature sensors exceeds a predetermined abnormality signal generation threshold temperature that is higher than the charge / discharge stop threshold temperature and lower than the fire-extinguishing threshold temperature, A secondary battery storage system rack that outputs an abnormal signal indicating that the secondary battery block is in an abnormal state.
  6. 　請求項４または５に記載の二次電池収納システムラックにおいて、
    　前記収納本体部の内部に設けられ、前記二次電池ブロックの発火により発生した煙を検知する煙センサ部を備え、
    　前記制御部は、
    　前記複数の温度センサが検出する温度のうち少なくとも１つの温度が前記消火用閾値温度を超えたとき、あるいは、前記煙センサ部が前記二次電池ブロックの発火により発生した煙を検知したときに、前記二次電池ブロックに前記消火剤を供給させるように前記消火装置を制御する二次電池収納システムラック。     The secondary battery storage system rack according to claim 4 or 5,
    A smoke sensor unit that is provided inside the storage body unit and detects smoke generated by ignition of the secondary battery block;
    The controller is
    When at least one of the temperatures detected by the plurality of temperature sensors exceeds the fire extinguishing threshold temperature, or when the smoke sensor unit detects smoke generated by ignition of the secondary battery block, The secondary battery storage system rack which controls the said fire extinguishing apparatus so that the said fire extinguishing agent may be supplied to the said secondary battery block.
  7. 　請求項４から請求項６のいずれか１に記載の二次電池収納システムラックにおいて、
    　通常時に閉弁とされる吸気弁及び排気弁を備え、
    　前記制御部は、
    　前記二次電池ブロックに対する消火が完了したときに、前記吸気弁が大気に対し開放され、前記排気弁が吸引手段を有する吸引部に対し接続されるように、前記吸気弁と前記排気弁とを開弁する二次電池収納システムラック。     The secondary battery storage system rack according to any one of claims 4 to 6,
    It has an intake valve and an exhaust valve that are normally closed,
    The controller is
    When the extinguishing of the secondary battery block is completed, the intake valve and the exhaust valve are connected so that the intake valve is opened to the atmosphere and the exhaust valve is connected to a suction unit having suction means. Secondary battery storage system rack that opens.
  8. 　請求項４から請求項７のいずれか１に記載の二次電池収納システムラックにおいて、
    　前記煙センサ部は、複数の煙センサを含み、
    　前記制御部は、
    　前記複数の煙センサのうち少なくとも１つが前記二次電池ブロックの発火により発生した煙を検知したときに、前記二次電池ブロックに前記消火剤を供給させるように前記消火装置を制御する二次電池収納システムラック。     The secondary battery storage system rack according to any one of claims 4 to 7,
    The smoke sensor unit includes a plurality of smoke sensors,
    The controller is
    A secondary battery that controls the fire extinguishing device to cause the secondary battery block to supply the fire extinguishing agent when at least one of the plurality of smoke sensors detects smoke generated by ignition of the secondary battery block Storage system rack.
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JP2020047606A (en) * 2014-10-29 2020-03-26 日本ドライケミカル株式会社 Fire prevention system for secondary battery
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CN112555733A (en) * 2020-12-03 2021-03-26 深圳市海洋王照明工程有限公司 Lamp with battery fireproof structure
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CN114534138A (en) * 2020-11-18 2022-05-27 致茂电子(苏州)有限公司 Fire suppression system and method for electronic assembly

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CN113948807A (en) * 2020-07-16 2022-01-18 哲弗智能***（上海）有限公司 Battery pack with intelligent fixed-point fire extinguishing function
CN114534138A (en) * 2020-11-18 2022-05-27 致茂电子(苏州)有限公司 Fire suppression system and method for electronic assembly
CN112555733A (en) * 2020-12-03 2021-03-26 深圳市海洋王照明工程有限公司 Lamp with battery fireproof structure

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