WO2023157258A1 - Electrical storage equipment - Google Patents

Electrical storage equipment Download PDF

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Publication number
WO2023157258A1
WO2023157258A1 PCT/JP2022/006759 JP2022006759W WO2023157258A1 WO 2023157258 A1 WO2023157258 A1 WO 2023157258A1 JP 2022006759 W JP2022006759 W JP 2022006759W WO 2023157258 A1 WO2023157258 A1 WO 2023157258A1
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WO
WIPO (PCT)
Prior art keywords
cubicle
water
battery
opening
storage equipment
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PCT/JP2022/006759
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French (fr)
Japanese (ja)
Inventor
淳一 石本
奏 田丸
駆 中村
浩 棚田
和典 原口
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三菱自動車工業株式会社
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Application filed by 三菱自動車工業株式会社 filed Critical 三菱自動車工業株式会社
Priority to JP2024500880A priority Critical patent/JPWO2023157258A1/ja
Priority to PCT/JP2022/006759 priority patent/WO2023157258A1/en
Publication of WO2023157258A1 publication Critical patent/WO2023157258A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—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
    • 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
    • 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 power storage equipment.
  • EVs electric vehicles
  • HEVs hybrid electric vehicles
  • PHEVs plug-in hybrid electric vehicles
  • a battery may experience thermal runaway due to some factor, and in this case, it is necessary to quickly lower the temperature of the battery in order to prevent thermal chain reaction between the batteries.
  • power storage equipment is equipped with fire extinguishing equipment such as a fire extinguisher, but it is effective to submerge the battery in water in order to quickly lower the temperature of the battery that has caused thermal runaway and ensure safety. .
  • Patent Document 1 when testing a battery, the battery is placed on the lid of a safety tank in which water is stored, and when the battery should be in a safe state, a plate member that constitutes the lid is safely attached. A device is shown that drops the battery into the safety tub by rotating it against the inner wall of the tub.
  • Patent Literature 1 is a device for submerging the battery by opening the lid by the user's operation. For this reason, in power storage equipment that accommodates multiple batteries in cubicles, it can be applied as equipment to ensure safety by quickly detecting batteries that have experienced thermal runaway and submerging them in water to suppress thermal chaining between batteries. is difficult.
  • An object of the present invention is to provide a highly safe power storage facility in a cubicle that houses a plurality of batteries, capable of quickly detecting an abnormality in the battery and submerging it in water.
  • a cubicle consisting of a box having a sealing structure capable of accommodating batteries in multiple stages and sealing the internal space; a water storage tank connected to the cubicle via a pipe having an on-off valve; an abnormality detection sensor that detects an abnormality of the battery; a control unit that opens the on-off valve based on a detection signal from the abnormality detection sensor and causes water stored in the water storage tank to flow into the cubicle; comprising Storage equipment.
  • the present invention in a cubicle that houses a plurality of batteries, it is possible to provide a highly safe power storage facility that can quickly detect an abnormality in a battery and submerge it in water.
  • FIG. 1 is a schematic front view showing the appearance of a power storage facility according to this embodiment;
  • FIG. It is a schematic block diagram which shows the internal structure of the electrical storage equipment which concerns on this embodiment.
  • It is a schematic side view showing the lower ventilation opening in an open state.
  • Fig. 10 is a schematic side view showing the lower vent in a closed state;
  • 1 is a schematic configuration diagram showing a wiring structure of an electricity storage facility;
  • FIG. FIG. 4 is a schematic configuration diagram for explaining a submersion operation in the power storage equipment;
  • FIG. 4 is a schematic configuration diagram for explaining a submersion operation in the power storage equipment;
  • FIG. 4 is a schematic configuration diagram for explaining a submersion operation in the power storage equipment;
  • FIG. 4 is a schematic configuration diagram for explaining a submersion operation in the power storage equipment;
  • FIG. 10 is a schematic configuration diagram showing the structure of a power storage facility according to another embodiment;
  • FIG. 1 is a schematic front view showing the appearance of a power storage facility 100 according to this embodiment.
  • FIG. 2 is a schematic configuration diagram showing the internal structure of the power storage equipment 100 according to this embodiment. 1 is a front view of the power storage equipment 100, and FIG. 2 is a view of FIG. 1 with the front plate 25 removed.
  • the power storage equipment 100 includes a cubicle 11 and a water storage tank 13 .
  • the water storage tank 13 is arranged above the cubicle 11 .
  • a plurality of batteries 15 are housed in the internal space S of the cubicle 11 .
  • four batteries 15A-15D are accommodated.
  • the power storage equipment 100 is, for example, an electric vehicle (EV), a hybrid electric vehicle (HEV), or a plug-in hybrid electric vehicle (PHEV) capable of external charging or power supply. It is a facility for secondary use (reuse) of the battery 15 mounted on the.
  • EV electric vehicle
  • HEV hybrid electric vehicle
  • PHEV plug-in hybrid electric vehicle
  • the cubicle 11 is a box-shaped metal housing.
  • the cubicle 11 has a bottom plate 21 , a pair of side plates 23 , a front plate 25 , a rear plate 27 and a top plate 29 .
  • a plurality of shelf boards 31 are provided inside the cubicle 11 . These shelf boards 31 are arranged at intervals in the vertical direction, and the battery 15 is placed on each shelf board 31 . Thus, in the internal space S of the cubicle 11, the batteries 15A to 15D are arranged in order from below.
  • the cubicle 11 has an opening 33 on its front plate 25 .
  • a pair of doors 35 and 37 are provided in the opening 33, and the opening 33 can be opened and closed by these doors 35 and 37.
  • the pair of doors 35 and 37 are rotatably connected to the inner edge of the opening 33 at the side edges opposite to each other, and the side edges facing each other are butted against each other.
  • These doors 35 and 37 are double doors that rotate in opposite directions to open the opening 33 by pulling the sides of the doors 35 and 37 facing each other toward the front of the cubicle 11 .
  • a seal member (not shown) is provided between the inner edge of the opening 33 and the outer edge of the doors 35 and 37 and at the abutting portion of the doors 35 and 37 .
  • One door 35 of the doors 35 and 37 for opening and closing the opening 33 has a lower ventilation port (ventilation port) 41 at its lower position.
  • FIG. 3A is a schematic side view showing the lower ventilation port 41 in an open state.
  • FIG. 3B is a schematic side view showing the lower vent 41 in a closed state.
  • the lower ventilation port 41 has a plurality of opening/closing lids 43.
  • the opening/closing lids 43 are supported at their upper ends so as to be rotatable about the horizontal axis with respect to the door 35 .
  • the lower ventilation port 41 has an opening/closing mechanism 44 .
  • the opening/closing mechanism 44 includes a plurality of links 44a one end of which is connected to the opening/closing lid 43, rods 44b to which the other ends of the links 44a are connected, and an actuator 44c that advances and retracts the rods 44b.
  • each open/close cover 43 is rotated by moving the rod 44b up and down by the actuator 44c.
  • the opening/closing lid 43 is arranged in a state of being rotated away from the lower ventilation port 41, thereby opening the lower ventilation port 41 (state shown in FIG. 3A).
  • the open/close lid 43 is rotated toward the lower ventilation port 41 by the open/close mechanism 44 from this open state, the lower ventilation port 41 is closed by the open/close lid 43 as shown in FIG. 3B.
  • a release switch 45 is provided on the door 35 provided with the lower ventilation port 41 (see FIG. 1).
  • the release switch 45 is pressed while the lower ventilation port 41 is closed by the opening/closing lid 43, the actuator 44c of the opening/closing mechanism 44 operates and the opening/closing lid 43 rotates. As a result, the closed lower ventilation port 41 is opened.
  • the cubicle 11 is provided with an upper ventilation port 46 having a fan 46a at an upper position.
  • the upper ventilation port 46 is provided in the rear panel 27 that constitutes the cubicle 11 .
  • the fan 46 a of the upper ventilation port 46 is driven to exhaust the air in the internal space S and draw the outside air into the internal space S through the lower ventilation port 41 . Thereby, the internal space S of the cubicle 11 is ventilated and the heat is exhausted.
  • the water storage tank 13 arranged above the cubicle 11 is connected to a pipe 51 at its lower part.
  • This pipe 51 is drawn into the internal space S of the cubicle 11 and extends downward from the cubicle 11 .
  • the lower end of the pipe 51 is located below the first (lowermost) battery 15A.
  • the pipe 51 is provided with an on-off valve 53 , and the flow path of the pipe 51 is opened and closed by the on-off valve 53 .
  • Water is stored in the water storage tank 13 , and the water in the water storage tank 13 is sent into the internal space S of the cubicle 11 through the pipe 51 by opening the flow path of the pipe 51 by the on-off valve 53 .
  • a plurality (four in this example) of water level sensors 61A to 61D and an abnormality detection sensor 63 are provided.
  • a plurality of water level sensors 61A-61D are fixed to the inner surface of the side plate 23 of the cubicle 11. As shown in FIG. These water level sensors 61A to 61D are provided corresponding to the batteries 15A to 15D, and arranged on the upper surfaces of the respective batteries 15A to 15D.
  • the upper surface positions of the batteries 15A to 15D where the water level sensors 61A to 61D are arranged are positions higher than the upper surfaces of the respective batteries 15A to 15D. In 61C, it is located below the lower surfaces of the batteries 15B to 15D in the upper stage.
  • non-contact sensors such as radio waves and ultrasonic waves, or contact sensors such as float sensors, guide rope sensors, capacitance sensors, pressure sensors, and electrode sensors can be used. .
  • the abnormality detection sensor 63 is fixed to the top plate 29 of the cubicle 11.
  • the abnormality detection sensor 63 is a sensor that detects an abnormality such as an increase in temperature or generation of smoke in the internal space S of the cubicle 11 due to an abnormality such as thermal runaway of the battery 15 .
  • a wiring tube 47 for drawing out wiring is connected to an upper position of one side plate 23 of the cubicle 11 and extends laterally.
  • This wiring pipe 47 is connected to a position above the cubicle 11 .
  • the wiring pipe 47 is connected to the side plate 23 at a position above the water level sensor 61D provided corresponding to the fourth (uppermost) battery 15D accommodated in the cubicle 11. .
  • Wiring such as power lines connected to each battery 15 and signal lines drawn from voltage sensors and temperature sensors provided in each battery 15 are passed through the wiring tube 47 .
  • Wiring drawn out from the wiring pipe 47 is routed and connected to an external power supply device, a battery control device, or the like.
  • the batteries 15 accommodated in the cubicles 11 are charged and discharged respectively, and voltage and temperature are detected by detection signals from the voltage sensor and the temperature sensor.
  • the temperature sensor provided in each battery 15 is also used as an abnormality detection sensor when detecting an abnormality such as thermal runaway of the battery 15 .
  • FIG. 4 is a schematic configuration diagram showing the wiring structure of the power storage equipment 100.
  • the power storage equipment 100 includes a control section 65 arranged outside the cubicle 11 .
  • Water level sensors 61A to 61D and an abnormality detection sensor 63 are connected to the control unit 65 . Detection signals are sent to the control unit 65 from the water level sensors 61A to 61D and the abnormality detection sensor 63 .
  • the control unit 65 is also connected to an opening/closing mechanism 44 that drives the opening/closing valve 53 provided in the pipe 51 and the opening/closing lid 43 of the lower ventilation port 41 .
  • the control unit 65 then transmits control signals to the opening/closing valve 53 and the opening/closing mechanism 44 to control the driving of the opening/closing valve 53 and the opening/closing mechanism 44 .
  • Temperature data of each battery 15 is also transmitted to the control unit 65 from a battery control device that controls charging and discharging of each battery 15 .
  • the control unit 65 monitors the presence or absence of an abnormality such as thermal runaway of the battery 15 based on the detection signal of the abnormality detection sensor 63 and the temperature data of each battery 15 from the battery control device. Then, when it is determined that at least one of the batteries 15 has an abnormality such as thermal runaway, the submersion operation is performed.
  • control unit 65 drives the opening/closing mechanism 44 to close the lower ventilation port 41 with the opening/closing lid 43 and open the opening/closing valve 53 . Then, the water in the water storage tank 13 flows into the inner space S of the cubicle 11 from the lower end of the pipe 51 due to its own weight, and the battery 15 is submerged. As a result, abnormalities such as thermal runaway of the battery 15 are suppressed, and safety is ensured.
  • control unit 65 identifies the battery 15 having an abnormality based on the temperature data from the battery control device, and controls the on-off valve 53 as follows.
  • 5A to 5D are schematic configuration diagrams explaining the submersion operation of the power storage equipment 100, respectively.
  • the control unit 65 drives the opening/closing mechanism 44 of the lower ventilation port 41 to rotate the opening/closing lid 43 and open the lower ventilation port 41 . Then, the water W stored in the internal space S of the cubicle 11 is drained from the lower ventilation port 41 .
  • the lower ventilation port 41 may be opened by the operator pressing the release switch 45 of the door 35 to operate the actuator 44c of the opening/closing mechanism 44.
  • the control unit 65 identifies the battery 15 having an abnormality such as thermal runaway among the plurality of batteries 15, and submerges the battery 15 up to the identified battery 15. can be minimized.
  • the power storage equipment 100 it is possible to rapidly submerge the battery 15 in which an abnormality has occurred, suppress thermal chaining between the batteries 15, and ensure safety. Moreover, since water is made to flow into the cubicle 11 and the battery 15 is submerged, the cost can be reduced compared to the case of using expensive liquid nitrogen that requires periodic replacement.
  • the water storage tank 13 is arranged above the cubicle 11, the water in the water storage tank 13 can flow into the internal space S of the cubicle 11 by its own weight by opening the on-off valve 53. Therefore, equipment such as a pump for sending water can be eliminated, and the structure can be simplified.
  • the open/close mechanism 44 is provided with a release switch 45 for opening the closed state of the lower ventilation port 41, by operating the release switch 45, the lower portion is closed to retain water in the cubicle 11. It is possible to easily drain water by opening the ventilation port 41 .
  • a wiring tube 47 through which wires such as a power line connected to the battery 15 and signal lines of a voltage sensor and a temperature sensor provided in the battery 15 are passed is provided above the cubicle 11 . Therefore, when water is allowed to flow into the cubicle 11 and the battery 15 is submerged, water can be prevented from entering the wiring pipe 47 .
  • FIG. 6 is a schematic configuration diagram showing the structure of a power storage facility 100A according to another embodiment.
  • a water storage tank 71 installed at a different location is connected to the cubicle 11 via a supply pipe 73.
  • the water storage tank 13 is, for example, a water storage tank or the like provided as a water source for a fire hydrant or the like in a facility where the power storage equipment 100A is installed.
  • a supply pipe 73 extending from the water storage tank 71 is provided with an on-off valve 75 that is controlled to open and close by a control unit 65 (see FIG. 4), and is connected to the upper end of the pipe 51 provided in the cubicle 11 .
  • the water in the water storage tank 71 is sent to the pipe 51 through the supply pipe 73 by opening the on-off valve 75 .
  • the water sent into the pipe 51 flows into the internal space S of the cubicle 11 from the lower end of the pipe 51 . Accordingly, when an abnormality such as thermal runaway occurs in the battery 15 housed in the cubicle 11, the battery 15 can be submerged in water to ensure safety.
  • a pump is provided in the supply pipe 73, and the water in the water storage tank 71 is sent into the internal space S of the cubicle 11 by this pump.
  • a water storage tank 13 is provided above the cubicle 11, and the supply pipe 73 of the water storage tank 71 is connected to the pipe 51 together with this water storage tank 13.
  • the cubicle 11 is It is good also as a structure which sends water into internal space S of.
  • the present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications and applications by combining each configuration of the embodiments with each other, based on the description of the specification and well-known techniques. It is also contemplated by the present invention that it falls within the scope of protection sought.
  • a cubicle consisting of a box having a seal structure capable of accommodating batteries in a plurality of stages and hermetically sealing the internal space; a water storage tank connected to the cubicle via a pipe having an on-off valve; an abnormality detection sensor that detects an abnormality of the battery; a control unit that opens the on-off valve based on a detection signal from the abnormality detection sensor and causes water stored in the water storage tank to flow into the cubicle; A power storage facility.
  • the controller opens the on-off valve to open the water storage tank.
  • a ventilation opening provided at a lower position of the cubicle; an opening and closing mechanism for opening and closing the ventilation opening;
  • the power storage equipment according to (1) or (2). According to this power storage equipment, by closing the ventilation port with the opening/closing mechanism, water can be stored in the cubicle and the battery can be submerged. Further, in a state in which water is stored in the cubicle, the open/close mechanism opens the ventilation opening, thereby allowing the water in the cubicle to be easily drained from the ventilation opening.
  • a water level sensor is provided at least on the upper surface of the uppermost battery, The power storage equipment according to any one of (1) to (4), wherein the control unit closes the on-off valve when water is detected by the water level sensor. According to this power storage equipment, when the battery is submerged and water is detected by the water level sensor, the on-off valve is closed by the controller. This allows an appropriate amount of water to flow into the cubicle.
  • the water level sensor is provided on the upper surface of each battery;
  • this power storage equipment water is allowed to flow into the cubicle until water is detected by the water level sensor corresponding to the battery in which an abnormality has occurred. No battery can be submerged in water. In other words, the number of submerged batteries can be minimized.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
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  • General Chemical & Material Sciences (AREA)
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Abstract

This electrical storage equipment comprises: a cubicle that comprises a box body capable of housing batteries on a plurality of shelves and having a sealing structure capable of tightly sealing the inner space thereof; a water storage tank that is connected to the cubicle by means of a pipe having an on-off valve; an abnormality detection sensor that detects battery abnormalities; and a control unit that, on the basis of a detection signal from the abnormality detection sensor, opens the on-off valve to cause water stored in the water storage tank to flow into the interior of the cubicle.

Description

蓄電設備power storage equipment
　本発明は、蓄電設備に関する。 The present invention relates to power storage equipment.
　近年、電気自動車（ＥＶ：Ｅｌｅｃｔｒｉｃ Ｖｅｈｉｃｌｅ）、ハイブリッド車（ＨＥＶ：Ｈｙｂｒｉｄ Ｅｌｅｃｔｒｉｃ Ｖｅｈｉｃｌｅ）あるいはプラグインハイブリッド車（ＰＨＥＶ：Ｐｌｕｇ-ｉｎ Ｈｙｂｒｉｄ Ｅｌｅｃｔｒｉｃ Ｖｅｈｉｃｌｅ）などに搭載されていたバッテリをリユースする設備として、これらのバッテリを、例えば、災害時のバックアップ電源などに活用する蓄電設備がある。 In recent years, electric vehicles (EVs), hybrid electric vehicles (HEVs), and plug-in hybrid electric vehicles (PHEVs) have come to be used as equipment for reusing batteries. 2. Description of the Related Art There is power storage equipment that utilizes a battery, for example, as a backup power source in the event of a disaster.
　ところで、バッテリは、何等かの要因によって熱暴走を起こすことがあり、この場合、バッテリ同士の熱連鎖を防ぐためにも、バッテリの温度を迅速に下げる必要がある。一般的に、蓄電設備では、消火器などの消火設備を備えているが、熱暴走を起こしたバッテリの温度を下げて迅速に安全を担保するためには、バッテリを水没させることが有効である。 By the way, a battery may experience thermal runaway due to some factor, and in this case, it is necessary to quickly lower the temperature of the battery in order to prevent thermal chain reaction between the batteries. In general, power storage equipment is equipped with fire extinguishing equipment such as a fire extinguisher, but it is effective to submerge the battery in water in order to quickly lower the temperature of the battery that has caused thermal runaway and ensure safety. .
　例えば、特許文献１には、電池に対する試験を行うにあたり、水が貯留された安全槽の蓋に電池を載置させ、電池を安全な状態にすべきときに、蓋を構成する板部材を安全槽の内壁に向けて回転させることによって、電池を安全槽内に落下させる装置が示されている。 For example, in Patent Document 1, when testing a battery, the battery is placed on the lid of a safety tank in which water is stored, and when the battery should be in a safe state, a plate member that constitutes the lid is safely attached. A device is shown that drops the battery into the safety tub by rotating it against the inner wall of the tub.
日本国特開２０２１－１４０９１５号公報Japanese Patent Application Laid-Open No. 2021-140915
　しかしながら、特許文献１に記載の技術は、ユーザの操作によって蓋を開いて電池を水没させる装置である。このため、複数のバッテリをキュービクル内に収容する蓄電設備において、熱暴走を起こしたバッテリを迅速に検出して水没させ、バッテリ同士の熱連鎖を抑えて安全性を担保するための設備として適用することは困難である。 However, the technology described in Patent Literature 1 is a device for submerging the battery by opening the lid by the user's operation. For this reason, in power storage equipment that accommodates multiple batteries in cubicles, it can be applied as equipment to ensure safety by quickly detecting batteries that have experienced thermal runaway and submerging them in water to suppress thermal chaining between batteries. is difficult.
　そこで本発明は、複数のバッテリを収容するキュービクルにおいて、バッテリの異常を迅速に検出して水没させることが可能な、安全性に優れた蓄電設備を提供することを目的とする。 An object of the present invention is to provide a highly safe power storage facility in a cubicle that houses a plurality of batteries, capable of quickly detecting an abnormality in the battery and submerging it in water.
　複数段にバッテリを収容可能であり、内部空間を密閉可能なシール構造を有する箱体からなるキュービクルと、
　開閉弁を有する配管を介して前記キュービクルに連結された貯水タンクと、
　前記バッテリの異常を検知する異常検知センサと、
　前記異常検知センサからの検知信号に基づいて前記開閉弁を開き、前記貯水タンクに貯留された水を前記キュービクルの内部に流入させる制御部と、
　を備える、
　蓄電設備。 a cubicle consisting of a box having a sealing structure capable of accommodating batteries in multiple stages and sealing the internal space;
a water storage tank connected to the cubicle via a pipe having an on-off valve;
an abnormality detection sensor that detects an abnormality of the battery;
a control unit that opens the on-off valve based on a detection signal from the abnormality detection sensor and causes water stored in the water storage tank to flow into the cubicle;
comprising
Storage equipment.
　本発明によれば、複数のバッテリを収容するキュービクルにおいて、バッテリの異常を迅速に検出して水没させることが可能な、安全性に優れた蓄電設備を提供できる。 According to the present invention, in a cubicle that houses a plurality of batteries, it is possible to provide a highly safe power storage facility that can quickly detect an abnormality in a battery and submerge it in water.
本実施形態に係る蓄電設備の外観を示す概略正面図である。1 is a schematic front view showing the appearance of a power storage facility according to this embodiment; FIG. 本実施形態に係る蓄電設備の内部構造を示す概略構成図である。It is a schematic block diagram which shows the internal structure of the electrical storage equipment which concerns on this embodiment. 開口状態の下部換気口を示す概略側面図である。It is a schematic side view showing the lower ventilation opening in an open state. 閉鎖状態の下部換気口を示す概略側面図である。Fig. 10 is a schematic side view showing the lower vent in a closed state; 蓄電設備の配線構造を示す概略構成図である。1 is a schematic configuration diagram showing a wiring structure of an electricity storage facility; FIG. 蓄電設備における水没動作を説明する概略構成図である。FIG. 4 is a schematic configuration diagram for explaining a submersion operation in the power storage equipment; 蓄電設備における水没動作を説明する概略構成図である。FIG. 4 is a schematic configuration diagram for explaining a submersion operation in the power storage equipment; 蓄電設備における水没動作を説明する概略構成図である。FIG. 4 is a schematic configuration diagram for explaining a submersion operation in the power storage equipment; 蓄電設備における水没動作を説明する概略構成図である。FIG. 4 is a schematic configuration diagram for explaining a submersion operation in the power storage equipment; 他の実施形態に係る蓄電設備の構造を示す概略構成図である。FIG. 10 is a schematic configuration diagram showing the structure of a power storage facility according to another embodiment;
　以下、本発明の実施形態について、図面を参照して詳細に説明する。
　図１は、本実施形態に係る蓄電設備１００の外観を示す概略正面図である。図２は、本実施形態に係る蓄電設備１００の内部構造を示す概略構成図である。すなわち、図１は、蓄電設備１００を前方から見た図であり、図２は、図１において前面板２５を取り除いた図である。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic front view showing the appearance of a power storage facility 100 according to this embodiment. FIG. 2 is a schematic configuration diagram showing the internal structure of the power storage equipment 100 according to this embodiment. 1 is a front view of the power storage equipment 100, and FIG. 2 is a view of FIG. 1 with the front plate 25 removed.
　図１及び図２に示すように、本実施形態に係る蓄電設備１００は、キュービクル１１と、貯水タンク１３と、を備えている。貯水タンク１３は、キュービクル１１の上部に配置されている。キュービクル１１には、その内部空間Ｓに複数のバッテリ１５が収容されている。本例では、４つのバッテリ１５Ａ～１５Ｄを収容している。 As shown in FIGS. 1 and 2 , the power storage equipment 100 according to this embodiment includes a cubicle 11 and a water storage tank 13 . The water storage tank 13 is arranged above the cubicle 11 . A plurality of batteries 15 are housed in the internal space S of the cubicle 11 . In this example, four batteries 15A-15D are accommodated.
　この蓄電設備１００は、例えば、電気自動車（ＥＶ：Ｅｌｅｃｔｒｉｃ Ｖｅｈｉｃｌｅ）、ハイブリッド車（ＨＥＶ：Ｈｙｂｒｉｄ Ｅｌｅｃｔｒｉｃ Ｖｅｈｉｃｌｅ）あるいは外部充電又は外部給電が可能なプラグインハイブリッド車（ＰＨＥＶ：Ｐｌｕｇ-ｉｎ Ｈｙｂｒｉｄ Ｅｌｅｃｔｒｉｃ Ｖｅｈｉｃｌｅ）などに搭載されていたバッテリ１５を二次利用（リユース）する設備である。 The power storage equipment 100 is, for example, an electric vehicle (EV), a hybrid electric vehicle (HEV), or a plug-in hybrid electric vehicle (PHEV) capable of external charging or power supply. It is a facility for secondary use (reuse) of the battery 15 mounted on the.
　キュービクル１１は、箱型に形成された金属製の筐体である。このキュービクル１１は、底面板２１と、一対の側面板２３と、前面板２５と、背面板２７と、天面板２９と、を有している。 The cubicle 11 is a box-shaped metal housing. The cubicle 11 has a bottom plate 21 , a pair of side plates 23 , a front plate 25 , a rear plate 27 and a top plate 29 .
　キュービクル１１には、その内部に、複数の棚板３１が設けられている。これらの棚板３１は、上下方向に間隔をあけて配置されており、各棚板３１上にバッテリ１５が載置されている。これにより、キュービクル１１の内部空間Ｓには、バッテリ１５Ａ～１５Ｄが下方から順に配置されている。 A plurality of shelf boards 31 are provided inside the cubicle 11 . These shelf boards 31 are arranged at intervals in the vertical direction, and the battery 15 is placed on each shelf board 31 . Thus, in the internal space S of the cubicle 11, the batteries 15A to 15D are arranged in order from below.
　キュービクル１１は、その前面板２５に開口部３３を有している。この開口部３３には、一対の扉３５，３７が設けられ、これらの扉３５，３７によって開口部３３が開閉可能とされている。一対の扉３５，３７は、互いに反対側の側縁部が開口部３３の内側縁部に回動可能に連結されており、互いに対向する側縁部が突き合わされている。これらの扉３５，３７は、互いに突き合わされた側縁部側をキュービクル１１の手前へ引くことにより、互いに逆方向へ回動し、開口部３３を開口する両開き扉である。 The cubicle 11 has an opening 33 on its front plate 25 . A pair of doors 35 and 37 are provided in the opening 33, and the opening 33 can be opened and closed by these doors 35 and 37. As shown in FIG. The pair of doors 35 and 37 are rotatably connected to the inner edge of the opening 33 at the side edges opposite to each other, and the side edges facing each other are butted against each other. These doors 35 and 37 are double doors that rotate in opposite directions to open the opening 33 by pulling the sides of the doors 35 and 37 facing each other toward the front of the cubicle 11 .
　開口部３３の内縁と扉３５，３７の外縁との間及び扉３５，３７の突き合わせ部分には、シール部材（図示略）が設けられている。これにより、扉３５，３７によって開口部３３を閉じた状態において、開口部３３の内縁と扉３５，３７の外縁との間及び扉３５，３７の突き合わせ部分がシールされる。このように、キュービクル１１は、シール構造を有する箱体とされており、内部空間Ｓを密閉可能である。 A seal member (not shown) is provided between the inner edge of the opening 33 and the outer edge of the doors 35 and 37 and at the abutting portion of the doors 35 and 37 . As a result, when the opening 33 is closed by the doors 35 and 37, the inner edge of the opening 33 and the outer edges of the doors 35 and 37 and the butted portions of the doors 35 and 37 are sealed. In this way, the cubicle 11 is a box having a sealing structure, and the internal space S can be hermetically sealed.
　開口部３３を開閉する扉３５，３７の一方の扉３５は、その下方位置に、下部換気口（換気口）４１を有している。 One door 35 of the doors 35 and 37 for opening and closing the opening 33 has a lower ventilation port (ventilation port) 41 at its lower position.
　図３Ａは、開口状態の下部換気口４１を示す概略側面図である。図３Ｂは、閉鎖状態の下部換気口４１を示す概略側面図である。 FIG. 3A is a schematic side view showing the lower ventilation port 41 in an open state. FIG. 3B is a schematic side view showing the lower vent 41 in a closed state.
　図３Ａに示すように、下部換気口４１は、複数の開閉蓋４３を有している。これらの開閉蓋４３は、その上端部が、扉３５に対して水平方向の軸線を中心として回動可能に支持されている。この下部換気口４１は、開閉機構４４を備えている。開閉機構４４は、一端が開閉蓋４３に連結された複数のリンク４４ａと、これらのリンク４４ａの他端が連結されたロッド４４ｂと、ロッド４４ｂを進退させるアクチュエータ４４ｃと、を備えている。この下部換気口４１では、アクチュエータ４４ｃによってロッド４４ｂが上下に進退されることにより、各開閉蓋４３が回動される。開閉蓋４３は、下部換気口４１から離間する方向へ回動された状態に配置されており、これにより、下部換気口４１が開口状態とされる（図３Ａの状態）。この開口状態から開閉機構４４によって開閉蓋４３が下部換気口４１へ向かって回動されると、図３Ｂに示すように、下部換気口４１は、開閉蓋４３によって閉ざされた閉鎖状態とされる。また、下部換気口４１が設けられた扉３５には、解除スイッチ４５が設けられている（図１参照）。下部換気口４１は、開閉蓋４３によって下部換気口４１が閉鎖された状態で解除スイッチ４５が押下されると、開閉機構４４のアクチュエータ４４ｃが作動して開閉蓋４３が回動する。これにより、閉鎖状態の下部換気口４１が開口状態とされる。 As shown in FIG. 3A, the lower ventilation port 41 has a plurality of opening/closing lids 43. The opening/closing lids 43 are supported at their upper ends so as to be rotatable about the horizontal axis with respect to the door 35 . The lower ventilation port 41 has an opening/closing mechanism 44 . The opening/closing mechanism 44 includes a plurality of links 44a one end of which is connected to the opening/closing lid 43, rods 44b to which the other ends of the links 44a are connected, and an actuator 44c that advances and retracts the rods 44b. In the lower ventilation port 41, each open/close cover 43 is rotated by moving the rod 44b up and down by the actuator 44c. The opening/closing lid 43 is arranged in a state of being rotated away from the lower ventilation port 41, thereby opening the lower ventilation port 41 (state shown in FIG. 3A). When the open/close lid 43 is rotated toward the lower ventilation port 41 by the open/close mechanism 44 from this open state, the lower ventilation port 41 is closed by the open/close lid 43 as shown in FIG. 3B. . A release switch 45 is provided on the door 35 provided with the lower ventilation port 41 (see FIG. 1). When the release switch 45 is pressed while the lower ventilation port 41 is closed by the opening/closing lid 43, the actuator 44c of the opening/closing mechanism 44 operates and the opening/closing lid 43 rotates. As a result, the closed lower ventilation port 41 is opened.
　図２に示すように、キュービクル１１には、上方位置に、ファン４６ａを有する上部換気口４６が設けられている。この上部換気口４６は、キュービクル１１を構成する背面板２７に設けられている。キュービクル１１では、上部換気口４６のファン４６ａが駆動することにより、内部空間Ｓ内の空気が排気されるとともに、内部空間Ｓ内へ下部換気口４１から外気が吸い込まれる。これにより、キュービクル１１の内部空間Ｓの換気及び排熱が行われる。 As shown in FIG. 2, the cubicle 11 is provided with an upper ventilation port 46 having a fan 46a at an upper position. The upper ventilation port 46 is provided in the rear panel 27 that constitutes the cubicle 11 . In the cubicle 11 , the fan 46 a of the upper ventilation port 46 is driven to exhaust the air in the internal space S and draw the outside air into the internal space S through the lower ventilation port 41 . Thereby, the internal space S of the cubicle 11 is ventilated and the heat is exhausted.
　キュービクル１１の上部に配置された貯水タンク１３は、その下部に配管５１が接続されている。この配管５１は、キュービクル１１の内部空間Ｓ内に引き込まれ、キュービクル１１の下方へ延在されている。この配管５１の下端は、１段目（最下段）のバッテリ１５Ａよりも下方位置に配置されている。また、この配管５１には、開閉弁５３が設けられており、この開閉弁５３によって配管５１の流路が開閉される。貯水タンク１３には、水が貯留されており、開閉弁５３によって配管５１の流路が開かれることにより、貯水タンク１３内の水が配管５１を通してキュービクル１１の内部空間Ｓへ送り込まれる。 The water storage tank 13 arranged above the cubicle 11 is connected to a pipe 51 at its lower part. This pipe 51 is drawn into the internal space S of the cubicle 11 and extends downward from the cubicle 11 . The lower end of the pipe 51 is located below the first (lowermost) battery 15A. In addition, the pipe 51 is provided with an on-off valve 53 , and the flow path of the pipe 51 is opened and closed by the on-off valve 53 . Water is stored in the water storage tank 13 , and the water in the water storage tank 13 is sent into the internal space S of the cubicle 11 through the pipe 51 by opening the flow path of the pipe 51 by the on-off valve 53 .
　また、キュービクル１１の内部空間Ｓには、複数（本例では４つ）の水位センサ６１Ａ～６１Ｄ及び異常検知センサ６３が設けられている。複数の水位センサ６１Ａ～６１Ｄは、キュービクル１１の側面板２３の内面に固定されている。これらの水位センサ６１Ａ～６１Ｄは、バッテリ１５Ａ～１５Ｄに対応して設けられ、それぞれのバッテリ１５Ａ～１５Ｄの上面位置に配置されている。なお、水位センサ６１Ａ～６１Ｄが配置されるバッテリ１５Ａ～１５Ｄの上面位置とは、高さ位置が各バッテリ１５Ａ～１５Ｄの上面以上の位置であり、１段目～３段目の水位センサ６１Ａ～６１Ｃにおいては、上方の段の各バッテリ１５Ｂ～１５Ｄの下面よりも下方側の位置である。また、水位センサ６１Ａ～６１Ｄとしては、電波式や超音波式などの非接触式またはフロート式、ガイドロープ式、静電容量式、圧力式あるいは電極式などの接触式のセンサが使用可能である。 In addition, in the internal space S of the cubicle 11, a plurality (four in this example) of water level sensors 61A to 61D and an abnormality detection sensor 63 are provided. A plurality of water level sensors 61A-61D are fixed to the inner surface of the side plate 23 of the cubicle 11. As shown in FIG. These water level sensors 61A to 61D are provided corresponding to the batteries 15A to 15D, and arranged on the upper surfaces of the respective batteries 15A to 15D. The upper surface positions of the batteries 15A to 15D where the water level sensors 61A to 61D are arranged are positions higher than the upper surfaces of the respective batteries 15A to 15D. In 61C, it is located below the lower surfaces of the batteries 15B to 15D in the upper stage. As the water level sensors 61A to 61D, non-contact sensors such as radio waves and ultrasonic waves, or contact sensors such as float sensors, guide rope sensors, capacitance sensors, pressure sensors, and electrode sensors can be used. .
　異常検知センサ６３は、キュービクル１１の天面板２９に固定されている。この異常検知センサ６３は、バッテリ１５の熱暴走などの異常によってキュービクル１１の内部空間Ｓで生じる温度上昇や煙の発生などの異常を検知するセンサである。 The abnormality detection sensor 63 is fixed to the top plate 29 of the cubicle 11. The abnormality detection sensor 63 is a sensor that detects an abnormality such as an increase in temperature or generation of smoke in the internal space S of the cubicle 11 due to an abnormality such as thermal runaway of the battery 15 .
　また、キュービクル１１には、一方の側面板２３における上方位置に、配線引出用の配索管４７が接続されて側方へ延在されている。この配索管４７は、キュービクル１１の上方位置に接続されている。具体的には、配索管４７は、キュービクル１１に収容された４段目（最上段）のバッテリ１５Ｄに対応して設けられた水位センサ６１Ｄよりも上方位置で側面板２３に接続されている。この配索管４７には、例えば、各バッテリ１５に接続された電力線、各バッテリ１５に設けられた電圧センサや温度センサから引き出された信号線等の配線が通される。この配索管４７から引き出された配線は、外部の給電装置やバッテリ制御装置等に配索されて接続される。そして、キュービクル１１に収容されたバッテリ１５は、それぞれ充放電されるとともに、電圧センサ及び温度センサからの検出信号によって電圧及び温度が検出される。なお、各バッテリ１５に設けられる温度センサは、バッテリ１５の熱暴走等の異常を検知する際の異常検知センサとしても用いられる。 In addition, a wiring tube 47 for drawing out wiring is connected to an upper position of one side plate 23 of the cubicle 11 and extends laterally. This wiring pipe 47 is connected to a position above the cubicle 11 . Specifically, the wiring pipe 47 is connected to the side plate 23 at a position above the water level sensor 61D provided corresponding to the fourth (uppermost) battery 15D accommodated in the cubicle 11. . Wiring such as power lines connected to each battery 15 and signal lines drawn from voltage sensors and temperature sensors provided in each battery 15 are passed through the wiring tube 47 . Wiring drawn out from the wiring pipe 47 is routed and connected to an external power supply device, a battery control device, or the like. The batteries 15 accommodated in the cubicles 11 are charged and discharged respectively, and voltage and temperature are detected by detection signals from the voltage sensor and the temperature sensor. The temperature sensor provided in each battery 15 is also used as an abnormality detection sensor when detecting an abnormality such as thermal runaway of the battery 15 .
　図４は、蓄電設備１００の配線構造を示す概略構成図である。
　図４に示すように、蓄電設備１００は、キュービクル１１の外部に配置された制御部６５を備えている。この制御部６５には、水位センサ６１Ａ～６１Ｄ及び異常検知センサ６３が接続されている。そして、制御部６５には、水位センサ６１Ａ～６１Ｄ及び異常検知センサ６３から検知信号が送信される。また、制御部６５は、配管５１に設けられた開閉弁５３及び下部換気口４１の開閉蓋４３を駆動する開閉機構４４に接続されている。そして、制御部６５は、開閉弁５３及び開閉機構４４に制御信号を送信し、これらの開閉弁５３及び開閉機構４４の駆動を制御する。また、制御部６５には、各バッテリ１５の充放電等を制御するバッテリ制御装置から各バッテリ１５の温度データが送信される。 FIG. 4 is a schematic configuration diagram showing the wiring structure of the power storage equipment 100. As shown in FIG.
As shown in FIG. 4 , the power storage equipment 100 includes a control section 65 arranged outside the cubicle 11 . Water level sensors 61A to 61D and an abnormality detection sensor 63 are connected to the control unit 65 . Detection signals are sent to the control unit 65 from the water level sensors 61A to 61D and the abnormality detection sensor 63 . The control unit 65 is also connected to an opening/closing mechanism 44 that drives the opening/closing valve 53 provided in the pipe 51 and the opening/closing lid 43 of the lower ventilation port 41 . The control unit 65 then transmits control signals to the opening/closing valve 53 and the opening/closing mechanism 44 to control the driving of the opening/closing valve 53 and the opening/closing mechanism 44 . Temperature data of each battery 15 is also transmitted to the control unit 65 from a battery control device that controls charging and discharging of each battery 15 .
　上記構成の蓄電設備１００では、制御部６５が異常検知センサ６３の検知信号及びバッテリ制御装置からの各バッテリ１５の温度データに基づいて、バッテリ１５の熱暴走などの異常の有無を監視する。そして、バッテリ１５の少なくとも一つが熱暴走などの異常を生じていると判定した際に、水没動作を実行させる。 In the power storage equipment 100 configured as described above, the control unit 65 monitors the presence or absence of an abnormality such as thermal runaway of the battery 15 based on the detection signal of the abnormality detection sensor 63 and the temperature data of each battery 15 from the battery control device. Then, when it is determined that at least one of the batteries 15 has an abnormality such as thermal runaway, the submersion operation is performed.
　水没動作では、制御部６５が開閉機構４４を駆動させて下部換気口４１を開閉蓋４３によって閉鎖するとともに、開閉弁５３を開く。すると、貯水タンク１３の水が自重によって配管５１の下端からキュービクル１１の内部空間Ｓへ流入し、バッテリ１５が水没される。これにより、バッテリ１５の熱暴走などの異常が抑えられ、安全性が担保される。 In the submerging operation, the control unit 65 drives the opening/closing mechanism 44 to close the lower ventilation port 41 with the opening/closing lid 43 and open the opening/closing valve 53 . Then, the water in the water storage tank 13 flows into the inner space S of the cubicle 11 from the lower end of the pipe 51 due to its own weight, and the battery 15 is submerged. As a result, abnormalities such as thermal runaway of the battery 15 are suppressed, and safety is ensured.
　この水没動作において、制御部６５は、バッテリ制御装置からの温度データに基づいて異常が生じているバッテリ１５を特定し、開閉弁５３を以下のように制御する。 In this submersion operation, the control unit 65 identifies the battery 15 having an abnormality based on the temperature data from the battery control device, and controls the on-off valve 53 as follows.
　図５Ａ～図５Ｄは、それぞれ蓄電設備１００における水没動作を説明する概略構成図である。 5A to 5D are schematic configuration diagrams explaining the submersion operation of the power storage equipment 100, respectively.
（１）１段目のバッテリ１５Ａの異常時
　図５Ａに示すように、制御部６５は、開閉弁５３を開いて内部空間Ｓ内に水Ｗを流入させた後、１段目のバッテリ１５Ａが水没し、水位センサ６１Ａによって水Ｗが検知されると、水位センサ６１Ａからの検知信号に基づいて、開閉弁５３を閉じる。これにより、貯水タンク１３からキュービクル１１の内部空間Ｓへの水Ｗの流入が停止される。 (1) When there is an abnormality in the first stage battery 15A As shown in FIG. When it is submerged and water W is detected by the water level sensor 61A, the on-off valve 53 is closed based on the detection signal from the water level sensor 61A. As a result, the inflow of water W from the water storage tank 13 into the internal space S of the cubicle 11 is stopped.
（２）１段目及び２段目のバッテリ１５Ａ，１５Ｂのうちの少なくとも２段目のバッテリ１５Ｂの異常時
　図５Ｂに示すように、制御部６５は、開閉弁５３を開いて内部空間Ｓ内に水Ｗを流入させた後、１段目のバッテリ１５Ａ及び２段目のバッテリ１５Ｂが水没し、水位センサ６１Ｂよって水Ｗが検知されると、水位センサ６１Ｂからの検知信号に基づいて、開閉弁５３を閉じる。これにより、貯水タンク１３からキュービクル１１の内部空間Ｓへの水Ｗの流入が停止される。 (2) When at least the second-stage battery 15B of the first-stage and second- stage batteries 15A and 15B has an abnormality As shown in FIG. After the water W is made to flow in, the first stage battery 15A and the second stage battery 15B are submerged, and when the water level sensor 61B detects the water W, the opening/closing is performed based on the detection signal from the water level sensor 61B. Close valve 53 . As a result, the inflow of water W from the water storage tank 13 into the internal space S of the cubicle 11 is stopped.
（３）１段目から３段目のバッテリ１５Ａ～１５Ｃのうちの少なくとも３段目のバッテリ１５Ｃの異常時
　図５Ｃに示すように、制御部６５は、開閉弁５３を開いて内部空間Ｓ内に水Ｗを流入させた後、１段目のバッテリ１５Ａから３段目のバッテリ１５Ｃが水没し、水位センサ６１Ｃよって水Ｗが検知されると、水位センサ６１Ｃからの検知信号に基づいて、開閉弁５３を閉じる。これにより、貯水タンク１３からキュービクル１１の内部空間Ｓへの水Ｗの流入が停止される。 (3) When at least the third stage battery 15C of the first to third stage batteries 15A to 15C has an abnormality As shown in FIG. After the water W is made to flow in, the first-stage battery 15A to the third-stage battery 15C are submerged, and when the water level sensor 61C detects the water W, opening and closing is performed based on the detection signal from the water level sensor 61C. Close valve 53 . As a result, the inflow of water W from the water storage tank 13 into the internal space S of the cubicle 11 is stopped.
（４）１段目から４段目のバッテリ１５Ａ～１５Ｄのうちの少なくとも４段目のバッテリ１５Ｄの異常時
　図５Ｄに示すように、制御部６５は、開閉弁５３を開いて内部空間Ｓ内に水Ｗを流入させた後、１段目のバッテリ１５Ａから４段目のバッテリ１５Ｄが水没し、水位センサ６１Ｄよって水Ｗが検知されると、水位センサ６１Ｄからの検知信号に基づいて、開閉弁５３を閉じる。これにより、貯水タンク１３からキュービクル１１の内部空間Ｓへの水Ｗの流入が停止される。 (4) When at least the fourth stage battery 15D out of the first to fourth stage batteries 15A to 15D has an abnormality As shown in FIG. After the water W is made to flow in, the first-stage battery 15A to the fourth-stage battery 15D are submerged, and when the water level sensor 61D detects the water W, opening and closing is performed based on the detection signal from the water level sensor 61D. Close valve 53 . As a result, the inflow of water W from the water storage tank 13 into the internal space S of the cubicle 11 is stopped.
　そして、バッテリ１５の水没により安全性が担保された後、制御部６５は、下部換気口４１の開閉機構４４を駆動させて開閉蓋４３を回動させ、下部換気口４１を開口させる。すると、キュービクル１１の内部空間Ｓに貯留している水Ｗが下部換気口４１から排水される。なお、この下部換気口４１は、作業者が扉３５の解除スイッチ４５を押下して開閉機構４４のアクチュエータ４４ｃを作動させることによって開口させてもよい。 After the battery 15 is submerged in water to ensure safety, the control unit 65 drives the opening/closing mechanism 44 of the lower ventilation port 41 to rotate the opening/closing lid 43 and open the lower ventilation port 41 . Then, the water W stored in the internal space S of the cubicle 11 is drained from the lower ventilation port 41 . The lower ventilation port 41 may be opened by the operator pressing the release switch 45 of the door 35 to operate the actuator 44c of the opening/closing mechanism 44. FIG.
　このように、蓄電設備１００では、制御部６５が、複数のバッテリ１５のうちの熱暴走などの異常が生じているバッテリ１５を特定し、特定したバッテリ１５まで水没させることにより、水没させるバッテリ１５を最小限に抑えることができる。 As described above, in the power storage equipment 100, the control unit 65 identifies the battery 15 having an abnormality such as thermal runaway among the plurality of batteries 15, and submerges the battery 15 up to the identified battery 15. can be minimized.
　なお、複数のバッテリ１５のうちの少なくとも一つのバッテリ１５が熱暴走を生じていると判定した際に、全てのバッテリ１５を一括して水没させてもよい。 It should be noted that when it is determined that at least one battery 15 out of the plurality of batteries 15 is experiencing thermal runaway, all the batteries 15 may be submerged in water at once.
　以上、説明したように、本実施形態に係る蓄電設備１００によれば、異常が生じたバッテリ１５を迅速に水没させ、バッテリ１５同士の熱連鎖を抑えて安全性を担保することができる。また、キュービクル１１に水を流入させてバッテリ１５を水没させるので、定期交換を要する高価な液体窒素などを用いる場合と比較し、コストを抑えることができる。 As described above, according to the power storage equipment 100 according to the present embodiment, it is possible to rapidly submerge the battery 15 in which an abnormality has occurred, suppress thermal chaining between the batteries 15, and ensure safety. Moreover, since water is made to flow into the cubicle 11 and the battery 15 is submerged, the cost can be reduced compared to the case of using expensive liquid nitrogen that requires periodic replacement.
　さらに、貯水タンク１３をキュービクル１１の上部に配置したので、開閉弁５３を開くことにより、貯水タンク１３内の水を自重によってキュービクル１１の内部空間Ｓへ流入させることができる。したがって、水を送り込むポンプなどの機器を不要にでき、構造を簡略にできる。 Furthermore, since the water storage tank 13 is arranged above the cubicle 11, the water in the water storage tank 13 can flow into the internal space S of the cubicle 11 by its own weight by opening the on-off valve 53. Therefore, equipment such as a pump for sending water can be eliminated, and the structure can be simplified.
　また、キュービクル１１の下方位置に換気のために設けた下部換気口４１を開閉機構４４によって閉鎖状態とすることにより、キュービクル１１内に水を貯留させてバッテリ１５を水没させることができる。また、キュービクル１１に水を貯留させた状態において、開閉機構４４によって下部換気口４１を開口状態とすることにより、キュービクル１１内の水を下部換気口４１から容易に排水させることができる。 Also, by closing the lower ventilation port 41 provided for ventilation at the lower position of the cubicle 11 by the opening/closing mechanism 44, water can be accumulated in the cubicle 11 and the battery 15 can be submerged. By opening the lower ventilation port 41 with the opening/closing mechanism 44 in a state where water is stored in the cubicle 11, the water in the cubicle 11 can be easily drained from the lower ventilation port 41. - 特許庁
　しかも、開閉機構４４によって下部換気口４１の閉鎖状態を開口状態にする解除スイッチ４５を備えるので、この解除スイッチ４５を操作することにより、キュービクル１１内に水を貯留させるために閉鎖状態とした下部換気口４１を開口状態として容易に排水させることができる。 Moreover, since the open/close mechanism 44 is provided with a release switch 45 for opening the closed state of the lower ventilation port 41, by operating the release switch 45, the lower portion is closed to retain water in the cubicle 11. It is possible to easily drain water by opening the ventilation port 41 .
　また、例えば、バッテリ１５に接続される電力線、バッテリ１５に設けられる電圧センサや温度センサの信号線などの配線を通す配索管４７が、キュービクル１１の上方位置に設けられている。したがって、キュービクル１１の内部に水を流入させてバッテリ１５を水没させた際に、配索管４７への水浸入を抑えることができる。 Also, for example, a wiring tube 47 through which wires such as a power line connected to the battery 15 and signal lines of a voltage sensor and a temperature sensor provided in the battery 15 are passed is provided above the cubicle 11 . Therefore, when water is allowed to flow into the cubicle 11 and the battery 15 is submerged, water can be prevented from entering the wiring pipe 47 .
　なお、上記実施形態では、４つのバッテリ１５を収容した場合を例示したが、キュービクル１１におけるバッテリ１５の収容数量は４つに限定されない。 In the above embodiment, four batteries 15 are accommodated, but the number of batteries 15 accommodated in the cubicle 11 is not limited to four.
　次に、他の実施形態に係る蓄電設備を説明する。
　なお、上記実施形態と同一構成部分は同一符号を付して説明を省略する。
　図６は、他の実施形態に係る蓄電設備１００Ａの構造を示す概略構成図である。 Next, power storage equipment according to another embodiment will be described.
In addition, the same components as those of the above-described embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.
FIG. 6 is a schematic configuration diagram showing the structure of a power storage facility 100A according to another embodiment.
　図６に示すように、他の実施形態に係る蓄電設備１００Ａでは、上部の貯水タンク１３がなく、異なる場所に設置された貯水タンク７１が供給管７３を介してキュービクル１１に接続されている。この貯水タンク１３は、例えば、蓄電設備１００Ａが設置される施設内において、例えば、消火栓用の水源等として設けられた貯水槽などである。 As shown in FIG. 6, in a power storage facility 100A according to another embodiment, there is no upper water storage tank 13, and a water storage tank 71 installed at a different location is connected to the cubicle 11 via a supply pipe 73. The water storage tank 13 is, for example, a water storage tank or the like provided as a water source for a fire hydrant or the like in a facility where the power storage equipment 100A is installed.
　貯水タンク７１から延びる供給管７３は、制御部６５（図４参照）によって開閉制御される開閉弁７５を備えており、キュービクル１１に設けられた配管５１の上端部に連結されている。 A supply pipe 73 extending from the water storage tank 71 is provided with an on-off valve 75 that is controlled to open and close by a control unit 65 (see FIG. 4), and is connected to the upper end of the pipe 51 provided in the cubicle 11 .
　この蓄電設備１００Ａでは、開閉弁７５を開くことにより、貯水タンク７１内の水が供給管７３を通して配管５１へ送り込まれる。そして、この配管５１に送り込まれる水は、配管５１の下端からキュービクル１１の内部空間Ｓに流入される。これにより、キュービクル１１に収容されたバッテリ１５に熱暴走などの異常が生じた際に、バッテリ１５を水没させて安全性を担保することができる。 In the power storage equipment 100A, the water in the water storage tank 71 is sent to the pipe 51 through the supply pipe 73 by opening the on-off valve 75 . The water sent into the pipe 51 flows into the internal space S of the cubicle 11 from the lower end of the pipe 51 . Accordingly, when an abnormality such as thermal runaway occurs in the battery 15 housed in the cubicle 11, the battery 15 can be submerged in water to ensure safety.
　なお、他の実施形態に係る蓄電設備１００Ａにおいて、貯水タンク７１からの水圧が低い場合は、供給管７３にポンプを設け、このポンプによって貯水タンク７１の水をキュービクル１１の内部空間Ｓへ送り込むようにしてもよい。 In addition, in the power storage equipment 100A according to another embodiment, when the water pressure from the water storage tank 71 is low, a pump is provided in the supply pipe 73, and the water in the water storage tank 71 is sent into the internal space S of the cubicle 11 by this pump. can be
　また、キュービクル１１の上部の貯水タンク１３を設け、この貯水タンク１３とともに貯水タンク７１の供給管７３を配管５１に接続し、バッテリ１５を水没させる際に、両方の貯水タンク１３，７１からキュービクル１１の内部空間Ｓへ水を送り込む構造としてもよい。 In addition, a water storage tank 13 is provided above the cubicle 11, and the supply pipe 73 of the water storage tank 71 is connected to the pipe 51 together with this water storage tank 13. When the battery 15 is submerged, the cubicle 11 is It is good also as a structure which sends water into internal space S of.
　このように、本発明は上記の実施形態に限定されるものではなく、実施形態の各構成を相互に組み合わせることや、明細書の記載、並びに周知の技術に基づいて、当業者が変更、応用することも本発明の予定するところであり、保護を求める範囲に含まれる。 As described above, the present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications and applications by combining each configuration of the embodiments with each other, based on the description of the specification and well-known techniques. It is also contemplated by the present invention that it falls within the scope of protection sought.
　以上の通り、本明細書には次の事項が開示されている。
（１）　複数段にバッテリを収容可能であり、内部空間を密閉可能なシール構造を有する箱体からなるキュービクルと、
　開閉弁を有する配管を介して前記キュービクルに連結された貯水タンクと、
　前記バッテリの異常を検知する異常検知センサと、
　前記異常検知センサからの検知信号に基づいて前記開閉弁を開き、前記貯水タンクに貯留された水を前記キュービクルの内部に流入させる制御部と、
　を備える、蓄電設備。
　この蓄電設備によれば、キュービクルに収容されたバッテリの熱暴走等の異常を異常検知センサが検知すると、この異常検知センサからの検知信号に基づいて、制御部が開閉弁を開き、貯水タンクの水をキュービクルの内部に流入させる。これにより、異常が生じたバッテリを迅速に水没させ、バッテリ同士の熱連鎖を抑えて安全性を担保することができる。また、キュービクルに水を流入させてバッテリを水没させるので、定期交換を要する高価な液体窒素などを用いる場合と比較し、コストを抑えることができる。 As described above, this specification discloses the following matters.
(1) A cubicle consisting of a box having a seal structure capable of accommodating batteries in a plurality of stages and hermetically sealing the internal space;
a water storage tank connected to the cubicle via a pipe having an on-off valve;
an abnormality detection sensor that detects an abnormality of the battery;
a control unit that opens the on-off valve based on a detection signal from the abnormality detection sensor and causes water stored in the water storage tank to flow into the cubicle;
A power storage facility.
According to this power storage equipment, when an abnormality such as thermal runaway of the battery housed in the cubicle is detected by the abnormality detection sensor, based on the detection signal from the abnormality detection sensor, the controller opens the on-off valve to open the water storage tank. Allow water to flow into the interior of the cubicle. As a result, it is possible to rapidly submerge the battery in which an abnormality has occurred, suppress thermal chain between the batteries, and ensure safety. In addition, since water is allowed to flow into the cubicle to submerge the battery, costs can be reduced compared to the case of using expensive liquid nitrogen that requires periodic replacement.
（２）　前記貯水タンクは、前記キュービクルの上部に配置されている、（１）に記載の蓄電設備。
　この蓄電設備によれば、開閉弁を開くことにより、貯水タンク内の水を自重によってキュービクルの内部へ流入させることができる。したがって、水を送り込むポンプなどの機器を不要にでき、構造を簡略にできる。 (2) The power storage equipment according to (1), wherein the water storage tank is arranged above the cubicle.
According to this power storage equipment, the water in the water storage tank can flow into the cubicle by its own weight by opening the on-off valve. Therefore, equipment such as a pump for sending water can be eliminated, and the structure can be simplified.
（３）　前記キュービクルの下方位置に設けられた換気口と、
　前記換気口を開閉させる開閉機構と、
　を備える、（１）または（２）に記載の蓄電設備。
　この蓄電設備によれば、開閉機構によって換気口を閉鎖状態とすることにより、キュービクル内に水を貯留させてバッテリを水没させることができる。また、キュービクルに水を貯留させた状態において、開閉機構によって換気口を開口状態とすることにより、キュービクル内の水を換気口から容易に排水させることができる。 (3) a ventilation opening provided at a lower position of the cubicle;
an opening and closing mechanism for opening and closing the ventilation opening;
The power storage equipment according to (1) or (2).
According to this power storage equipment, by closing the ventilation port with the opening/closing mechanism, water can be stored in the cubicle and the battery can be submerged. Further, in a state in which water is stored in the cubicle, the open/close mechanism opens the ventilation opening, thereby allowing the water in the cubicle to be easily drained from the ventilation opening.
（４）　前記開閉機構によって前記換気口の閉鎖状態を開口状態にする解除スイッチを備える、（３）に記載の蓄電設備。
　この蓄電設備によれば、解除スイッチを操作することにより、キュービクル内に水を貯留させるために閉鎖状態とした換気口を開口状態として容易に排水させることができる。 (4) The power storage equipment according to (3), further comprising a release switch that causes the open/close mechanism to open the closed state of the ventilation port.
According to this power storage equipment, by operating the release switch, the closed ventilation opening for storing water in the cubicle can be opened to easily drain water.
（５）　少なくとも最上段の前記バッテリの上面位置に水位センサが設けられ、
　前記制御部は、前記水位センサによって水が検出された際に、前記開閉弁を閉じる、（１）～（４）のいずれか一つに記載の蓄電設備。
　この蓄電設備によれば、バッテリが水没して水位センサによって水が検出されると、制御部によって開閉弁が閉じられる。これにより、キュービクルへ適量の水を流入させることができる。 (5) A water level sensor is provided at least on the upper surface of the uppermost battery,
The power storage equipment according to any one of (1) to (4), wherein the control unit closes the on-off valve when water is detected by the water level sensor.
According to this power storage equipment, when the battery is submerged and water is detected by the water level sensor, the on-off valve is closed by the controller. This allows an appropriate amount of water to flow into the cubicle.
（６）　それぞれの前記バッテリの上面位置に前記水位センサが設けられ、
　前記制御部は、いずれかの前記水位センサによって水が検出された際に、前記開閉弁を閉じる、（５）に記載の蓄電設備。
　この蓄電設備によれば、異常が発生しているバッテリに対応した水位センサによって水が検出されるまでキュービクル内に水を流入させることにより、異常が発生しているバッテリよりも上方側の異常のないバッテリの水没を抑えることができる。つまり、水没させるバッテリを最小限に抑えることができる。 (6) the water level sensor is provided on the upper surface of each battery;
The power storage equipment according to (5), wherein the control unit closes the on-off valve when water is detected by any of the water level sensors.
According to this power storage equipment, water is allowed to flow into the cubicle until water is detected by the water level sensor corresponding to the battery in which an abnormality has occurred. No battery can be submerged in water. In other words, the number of submerged batteries can be minimized.
（７）　前記キュービクルの上方位置に配索管が設けられている、（１）～（６）のいずれか一つに記載の蓄電設備。
　この蓄電設備によれば、例えば、バッテリに接続される電力線、バッテリに設けられる電圧センサや温度センサの信号線などの配線を通す配索管が、キュービクルの上方位置に設けられている。したがって、キュービクルの内部に水を流入させてバッテリを水没させた際に、配索管への水浸入を抑えることができる。 (7) The power storage equipment according to any one of (1) to (6), wherein a wiring pipe is provided above the cubicle.
According to this power storage equipment, for example, wiring pipes for passing wires such as power lines connected to batteries and signal lines of voltage sensors and temperature sensors provided in the batteries are provided above the cubicle. Therefore, when water is allowed to flow into the cubicle and the battery is submerged, it is possible to prevent water from entering the wiring pipe.
　１１　キュービクル
　１３，７１　貯水タンク
　１５，１５Ａ～１５Ｄ　バッテリ
　４１　下部換気口（換気口）
　４４　開閉機構
　４５　解除スイッチ
　４７　配索管
　５１　配管
　５３　開閉弁
　６１Ａ～６１Ｄ　水位センサ
　６３　異常検知センサ
　６５　制御部
　１００，１００Ａ　蓄電設備 11 cubicle 13, 71 water storage tank 15, 15A to 15D battery 41 lower ventilation port (ventilation port)
44 opening/closing mechanism 45 release switch 47 wiring pipe 51 piping 53 opening/closing valve 61A to 61D water level sensor 63 abnormality detection sensor 65 control section 100, 100A power storage equipment

Claims (7)

  1. 　複数段にバッテリを収容可能であり、内部空間を密閉可能なシール構造を有する箱体からなるキュービクルと、
    　開閉弁を有する配管を介して前記キュービクルに連結された貯水タンクと、
    　前記バッテリの異常を検知する異常検知センサと、
    　前記異常検知センサからの検知信号に基づいて前記開閉弁を開き、前記貯水タンクに貯留された水を前記キュービクルの内部に流入させる制御部と、
    　を備える、
    　蓄電設備。     a cubicle consisting of a box having a sealing structure capable of accommodating batteries in multiple stages and sealing the internal space;
    a water storage tank connected to the cubicle via a pipe having an on-off valve;
    an abnormality detection sensor that detects an abnormality of the battery;
    a control unit that opens the on-off valve based on a detection signal from the abnormality detection sensor and causes water stored in the water storage tank to flow into the cubicle;
    comprising
    Storage equipment.
  2. 　前記貯水タンクは、前記キュービクルの上部に配置されている、
    　請求項１に記載の蓄電設備。     The water storage tank is located above the cubicle,
    The power storage equipment according to claim 1.
  3. 　前記キュービクルの下方位置に設けられた換気口と、
    　前記換気口を開閉させる開閉機構と、
    　を備える、
    　請求項１または請求項２に記載の蓄電設備。     a ventilation opening provided at a lower position of the cubicle;
    an opening and closing mechanism for opening and closing the ventilation opening;
    comprising
    The power storage equipment according to claim 1 or 2.
  4. 　前記開閉機構によって前記換気口の閉鎖状態を開口状態にする解除スイッチを備える、
    　請求項３に記載の蓄電設備。     A release switch is provided to open the closed state of the ventilation port by the opening and closing mechanism,
    The power storage equipment according to claim 3.
  5. 　少なくとも最上段の前記バッテリの上面位置に水位センサが設けられ、
    　前記制御部は、前記水位センサによって水が検出された際に、前記開閉弁を閉じる、
    　請求項１～４のいずれか一項に記載の蓄電設備。     A water level sensor is provided at least on the upper surface of the uppermost battery,
    The control unit closes the on-off valve when water is detected by the water level sensor.
    The power storage equipment according to any one of claims 1 to 4.
  6. 　それぞれの前記バッテリの上面位置に前記水位センサが設けられ、
    　前記制御部は、いずれかの前記水位センサによって水が検出された際に、前記開閉弁を閉じる、
    　請求項５に記載の蓄電設備。     The water level sensor is provided at the upper surface position of each of the batteries,
    The control unit closes the on-off valve when water is detected by any of the water level sensors;
    The power storage equipment according to claim 5.
  7. 　前記キュービクルの上方位置に配索管が設けられている、
    　請求項１～６のいずれか一項に記載の蓄電設備。     A wiring pipe is provided above the cubicle,
    The power storage equipment according to any one of claims 1 to 6.
PCT/JP2022/006759 2022-02-18 2022-02-18 Electrical storage equipment WO2023157258A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012015001A1 (en) * 2010-07-30 2012-02-02 三洋電機株式会社 Secondary battery storage system rack
JP2019075191A (en) * 2016-03-08 2019-05-16 パナソニックＩｐマネジメント株式会社 Power storage device
JP2020119822A (en) * 2019-01-25 2020-08-06 株式会社ソフトエナジーコントロールズ Secondary battery transport tray
US20210077842A1 (en) * 2019-09-17 2021-03-18 Stem, Inc. Sprinkler manifold for energy storage systems

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012015001A1 (en) * 2010-07-30 2012-02-02 三洋電機株式会社 Secondary battery storage system rack
JP2019075191A (en) * 2016-03-08 2019-05-16 パナソニックＩｐマネジメント株式会社 Power storage device
JP2020119822A (en) * 2019-01-25 2020-08-06 株式会社ソフトエナジーコントロールズ Secondary battery transport tray
US20210077842A1 (en) * 2019-09-17 2021-03-18 Stem, Inc. Sprinkler manifold for energy storage systems

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