WO2017183429A1 - 蓄電装置 - Google Patents

蓄電装置 Download PDF

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Publication number
WO2017183429A1
WO2017183429A1 PCT/JP2017/013896 JP2017013896W WO2017183429A1 WO 2017183429 A1 WO2017183429 A1 WO 2017183429A1 JP 2017013896 W JP2017013896 W JP 2017013896W WO 2017183429 A1 WO2017183429 A1 WO 2017183429A1
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WIPO (PCT)
Prior art keywords
temperature
power
liquid
storage device
heat insulating
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Ceased
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PCT/JP2017/013896
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English (en)
French (fr)
Japanese (ja)
Inventor
深田　雅一
仁司 塩谷
次郎 亀田
加藤　和行
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Denso Corp
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Denso Corp
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Publication date
Application filed by Denso Corp filed Critical Denso Corp
Priority to US16/095,279 priority Critical patent/US11038222B2/en
Priority to CN201780024132.XA priority patent/CN109075408B/zh
Publication of WO2017183429A1 publication Critical patent/WO2017183429A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present disclosure relates to a power storage device.
  • the power storage device (electric propulsion device) described in Patent Document 1 below has a configuration in which a storage battery and an inverter (power converter) are accommodated in the same casing.
  • a refrigerant flow path is formed in the wall of the housing, and the storage battery or the like can be cooled and heated by circulating the refrigerant.
  • the power storage device can be operated over a long period of time.
  • the internal space of the housing that is, the space in which the storage battery or the like is accommodated is filled with air.
  • air As a result of detailed studies by the inventor, there is a problem that depending on the arrangement of storage batteries and inverters in such a power storage device, they may not be evenly and sufficiently cooled, and temperature unevenness may occur in some areas. It was issued. Another problem has been found that when the humidity of the air is high, condensation occurs inside the housing, which may affect the operation of the inverter.
  • An object of the present disclosure is to provide a power storage device that can operate over a long period of time without being affected by outside air temperature or humidity.
  • a power storage device includes a storage battery that stores power, a battery management unit that monitors and protects the storage battery, a function that converts DC power output from the storage battery into AC power, and outputs the power
  • An inverter having a function of converting supplied AC power into DC power and supplying it to a storage battery, and a storage battery for storing the storage battery, the battery management unit, and the inverter in a state where the periphery is filled with a liquid
  • a temperature control unit that adjusts the temperature of the liquid so that the temperature of the liquid becomes a predetermined target temperature, heat transfer between the container and the liquid and the outside air, and a heat insulating material arranged so as to surround the liquid storage container, Is provided.
  • the storage battery, the battery management unit, and the inverter are accommodated in the liquid storage container, and the periphery thereof is filled with the liquid.
  • a liquid for example, an insulating liquid such as a fluorine-based liquid is used.
  • the temperature control unit and the storage battery heat is transferred by heat conduction through the liquid. For this reason, compared with the case where the circumference
  • a power storage device that can operate over a long period of time without being affected by outside air temperature or humidity is provided.
  • FIG. 1 is a perspective view illustrating an appearance of the power storage device according to the present embodiment.
  • FIG. 2 is a cross-sectional view showing the internal structure of the power storage device.
  • FIG. 3 is a perspective view showing a refrigerant pipe which is a part of the temperature control unit.
  • FIG. 4 is a flowchart showing a flow of processing executed in the temperature adjustment unit.
  • FIG. 5 is a diagram showing the relationship between the outside air temperature and the set target temperature.
  • FIG. 6 is a diagram illustrating an example of a temperature change inside the liquid storage container.
  • FIG. 7 is a diagram showing the relationship between the temperature of the storage battery and the current capacity.
  • FIG. 8 is a cross-sectional view showing the internal structure of the vacuum heat insulating material.
  • FIG. 9 is a diagram for explaining the arrangement of the vacuum heat insulating material inside the power storage device.
  • FIG. 10 is a diagram for explaining the arrangement of the vacuum heat insulating material inside the power storage device.
  • the power storage device 10 is configured as an in-vehicle storage battery mounted on an electric vehicle.
  • the use of the power storage device 10 is not limited to this.
  • the power storage device may be used as a stationary power storage device installed in a building as part of the HEMS, or may be used as a power storage device installed in a mobile phone base station.
  • FIG. 1 shows the external appearance of the power storage device 10
  • FIG. 2 shows its internal structure.
  • the power storage device 10 has a configuration in which a storage battery 30 and the like are accommodated in a case 20.
  • Three terminals 90 that are bar-shaped metal pins and two terminals 91 that are also bar-shaped metal pins are provided below the power storage device 10, that is, on the lower surface of the case 20.
  • the power storage device 10 can output three-phase AC power to the outside from these terminals 90 and can output DC power to the outside from these terminals 91.
  • the power storage device 10 can also receive three-phase AC power supplied from the outside from the terminal 90 and store the power in the storage battery 30.
  • the power storage device 10 can also receive DC power supplied from the outside from the terminal 91 and store the power in the storage battery 30.
  • the electric power input / output between the storage battery 30 and the terminal 90 is input / output via the inverter 40. Further, power input / output between the storage battery 30 and the terminal 91 is input / output via a battery management unit 32 described later.
  • the power storage device 10 includes a case 20, a storage battery 30, an inverter 40, a temperature adjustment unit 50, a liquid storage container 60, and a heat insulating material 70.
  • the case 20 is a container that accommodates the storage battery 30 and the like therein as described above.
  • the case 20 is formed by aluminum die casting.
  • the case 20 is configured to be divided into a main body portion 22 and a lid portion 21.
  • the main body 22 is a part that houses the storage battery 30 and the like, and an opening is formed on the upper surface thereof. From the opening, a part of a temperature adjusting unit 50 described later protrudes upward.
  • the lid portion 21 is a portion that closes the opening formed on the upper surface of the main body portion 22 from above.
  • the lid part 21 covers the temperature adjustment part 50 protruding upward from the main body part 22 from the side and the upper side.
  • the lid portion 21 is formed with a vent hole (not shown). For this reason, the temperature and humidity inside the case 20, particularly inside the lid portion 21, are approximately equal to the temperature and humidity outside the case 20.
  • Storage battery 30 is a part that stores electric power.
  • the storage battery 30 includes a plurality of cell units 31 made of, for example, lithium ion batteries.
  • the output voltage of the storage battery 30 is a safety voltage of less than 60 volts, and 48 volts in a specific period.
  • a battery management unit 32 is disposed in the vicinity of the storage battery 30.
  • the battery management unit 32 is referred to as a so-called BMU (Battery Management Unit), and is provided as a device for monitoring and protecting each cell unit 31.
  • BMU Battery Management Unit
  • the battery management unit 32 corresponds to the “battery management unit” in the present embodiment.
  • the inverter 40 converts DC power output from the storage battery 30 into AC power and outputs it from the terminal 90, and converts AC power supplied from the outside to the terminal 90 into DC power and supplies it to the storage battery 30. Function.
  • the inverter 40 functions as a bidirectional power converter.
  • the inverter 40 has a plurality of switching elements 41 that perform a switching operation for power conversion.
  • a gallium nitride element (GaN) is used as the switching element 41.
  • GaN gallium nitride element
  • the gallium nitride device is a wide band gap power device, and the loss associated with the switching operation is extremely small. For this reason, the conversion efficiency of the inverter 40 is an ultrahigh efficiency of 99% or more, and the heat generation during the operation is extremely small. Further, the inverter 40 is thinned as a whole, and is configured as a printed circuit board type power converter.
  • FIG. 2 a plurality of switching elements 41 are schematically drawn. Since a specific shape of the switching element 41 and a specific configuration of the switching circuit including the switching element 41 can be adopted, illustration and description thereof are omitted.
  • the liquid storage container 60 is a container that houses the storage battery 30, the battery management unit 32, and the inverter 40 therein.
  • the liquid storage container 60 is a bag-shaped container formed of an aluminum laminate film.
  • the space SP inside the liquid storage container 60, that is, the surrounding space of the storage battery 30, etc. is filled with liquid.
  • the liquid hereinafter referred to as “heat transfer liquid LQ”
  • a liquid for example, a fluorine-based liquid, silicon oil, ultrapure water, or the like can be used.
  • Fluorinert registered trademark
  • Fluorine-based liquid is used as the heat transfer liquid LQ.
  • Fluorine-based liquids are particularly suitable as the heat transfer liquid LQ because they have high thermal conductivity, can easily maintain electrical insulation, and also have flame retardancy.
  • the liquid storage container 60 is sealed at normal pressure with the inside filled with the heat transfer liquid LQ (that is, in a state where no air is present).
  • the power storage device 10 Since air is excluded from the surroundings of the storage battery 30, the battery management unit 32, and the inverter 40, condensation does not occur on these surfaces even when the humidity of the outside air is high. Moreover, since ultraviolet rays, ozone, insects, and dust are prevented from entering the liquid storage container 60, the power storage device 10 is not damaged or deteriorated due to these. Furthermore, since the disassembly and cleaning when the power storage device 10 is reused becomes unnecessary, the value of the power storage device 10 can be maintained high.
  • liquid storage container 60 As a material of the liquid storage container 60, a hard material (for example, metal such as aluminum) that does not have flexibility may be used instead of the aluminum laminate film as described above.
  • the liquid storage container 60 is desirably formed of a material having high thermal conductivity so that the temperature of the heat transfer liquid LQ filling the inside can be easily adjusted.
  • the configuration of the present embodiment can reliably prevent the battery management unit 32 from malfunctioning due to electromagnetic noise incident from the outside or leakage of electromagnetic noise generated by the inverter 40 to the outside.
  • the temperature control unit 50 is a part that adjusts the heat transfer liquid LQ to a predetermined target temperature by transferring heat between the heat transfer liquid LQ and the outside air.
  • the temperature adjustment unit 50 includes a heat exchanger 51, a fan 52, an electric compressor 53, a refrigerant pipe 54, and a control unit 55.
  • the temperature control unit 50 is configured as a refrigeration cycle that moves heat by circulating the refrigerant.
  • the heat exchanger 51 is a heat exchanger that exchanges heat between outside air (specifically, air inside the lid portion 21) and the circulating refrigerant.
  • the heat exchanger 51 corresponds to the “external heat exchange unit” in the present embodiment.
  • the fan 52 is a blower that sends ambient air into the heat exchanger 51 so that heat exchange in the heat exchanger 51 is promoted. Electric power for driving the fan 52 is supplied from the storage battery 30 to the fan 52 via the power supply of the control unit 55. The operation of the fan 52 is controlled by the control unit 55.
  • the electric compressor 53 is a device that sends out the refrigerant so that the refrigerant circulates between the heat exchanger 51 and the refrigerant pipe 54. Electric power for driving the electric compressor 53 is supplied from the storage battery 30 to the electric compressor 53 via a dedicated small inverter in the control unit 55. The operation of the electric compressor 53 is controlled by the control unit 55.
  • the refrigerant pipe 54 is a pipe having a circular cross section as an example in the present embodiment, and is formed of metal in the present embodiment.
  • the refrigerant pipe 54 functions as a heat exchanger for causing heat exchange between the refrigerant flowing inside and the liquid storage container 60 (and the internal heat transfer liquid LQ).
  • the refrigerant pipe 54 corresponds to the “internal heat exchange part” in the present embodiment.
  • the refrigerant pipe 54 is arranged so as to circulate around the liquid storage container 60 over a plurality of circumferences.
  • One end of the refrigerant pipe 54 is connected to the electric compressor 53.
  • the other end of the refrigerant pipe 54 is connected to the heat exchanger 51 via a throttle valve (not shown).
  • the refrigerant pipe 54 includes a first pipe part 54 a that extends from the electric compressor 53 and a second pipe part 54 b that extends from the throttle valve in the lower folded part TP. It is the structure that is connected.
  • the refrigerant flowing through the refrigerant pipe 54 changes its temperature by exchanging heat with the liquid storage container 60 while flowing around the liquid storage container 60.
  • the refrigerant flow path can be switched by a three-way valve (not shown). Thereby, the cooling state in which the refrigerant pipe 54 functions as an evaporator and the heating state in which the refrigerant pipe 54 functions as a condenser can be switched.
  • the refrigerant flows in the order of the electric compressor 53, the heat exchanger 51 (condenser), a throttle valve (not shown), and the refrigerant pipe 54 (evaporator).
  • the liquid storage container 60 is cooled by heat radiation to the air, and the temperature of the heat transfer liquid LQ is lowered.
  • the refrigerant flows in the order of the electric compressor 53, the refrigerant pipe 54 (condenser), a throttle valve (not shown), and the heat exchanger 51 (evaporator).
  • the liquid storage container 60 is heated by heat absorption from the air, and the temperature of the heat transfer liquid LQ rises.
  • the control unit 55 is a part that controls operations of the fan 52, the electric compressor 53, and a three-way valve (not shown).
  • the control unit 55 is configured as a system including a computer unit including a CPU, a ROM, and the like, an inverter unit for an electric compressor, and a power source unit for a fan. By the control performed by the control unit 55, the temperature of the heat transfer liquid LQ inside the liquid storage container 60 is maintained in the vicinity of the target temperature. A specific aspect of the control will be described later.
  • the heat insulating material 70 is provided in order to suppress the movement of heat between the liquid storage container 60 and the outside air.
  • the heat insulating material 70 is disposed so as to surround the entire periphery of the liquid storage container 60. As shown in FIG. 2, most of the refrigerant pipe 54 (the part that functions as an internal heat exchange part) is provided inside the heat insulating material 70. In addition, a portion (the heat exchanger 51 or the like) other than the refrigerant pipe 54 in the temperature control unit 50 is provided outside the heat insulating material 70.
  • the temperature of the liquid storage container 60 and the heat transfer liquid LQ therein is hardly affected by the outside air temperature. That is, only the heat generated by each of the storage battery 30, the battery management unit 32, and the inverter 40 housed in the liquid storage container 60 is a factor that fluctuates the temperature of the heat transfer liquid LQ. As a result, the operating load of the temperature control unit 50 is relatively small, and the energy required to operate the temperature control unit 50 is also small.
  • the fan 52 and the electric compressor 53 of the temperature control unit 50 operate by receiving the supply of electric power stored in the storage battery 30.
  • the energy required for the operation is small as described above, a decrease in the amount of stored electricity associated with the operation of the temperature adjustment unit 50 is suppressed.
  • moves using the electric power stored in the storage battery 30 may be comprised as a refrigeration cycle as mentioned above, the structure different from this may be sufficient.
  • a configuration in which heat transfer between the heat transfer liquid LQ and the outside air is performed by a Peltier element may be employed.
  • a vacuum heat insulating material is used as the heat insulating material 70.
  • a specific configuration of the heat insulating material 70 and a specific arrangement of the heat insulating material 70 inside the case 20 will be described later.
  • the power storage device 10 further includes a liquid temperature sensor 81 and an outside air temperature sensor 82.
  • the liquid temperature sensor 81 is a temperature sensor for measuring the temperature inside the liquid storage container 60, that is, the temperature of the heat transfer liquid LQ.
  • the liquid temperature sensor 81 is attached to the battery management unit 32.
  • the temperature of the heat transfer liquid LQ measured by the liquid temperature sensor 81 is transmitted to the control unit 55 of the temperature adjustment unit 50.
  • the temperature is approximately equal to the temperature of each of the storage battery 30, the battery management unit 32, and the inverter 40.
  • the outside air temperature sensor 82 is a temperature sensor for measuring the air temperature inside the lid portion 21. As already described, the lid portion 21 has a vent hole (not shown). For this reason, the temperature measured by the outside air temperature sensor 82 is equal to the air temperature outside the case 20, that is, the outside air temperature. That is, the outside air temperature sensor 82 functions as a sensor for detecting the outside air temperature. The outside air temperature measured by the outside air temperature sensor 82 is transmitted to the control unit 55 of the temperature adjustment unit 50.
  • step S01 the outside air temperature detected by the outside air temperature sensor 82 is acquired.
  • step S02 the target temperature is updated.
  • the controller 55 changes the target temperature, which is a target value for the temperature of the heat transfer liquid LQ, based on the outside air temperature acquired in step S01.
  • FIG. 5 shows the correspondence between the outside air temperature and the set target temperature.
  • the target temperature when the outside air temperature is lower than the temperature T1, the target temperature is set to the lower limit value ST1.
  • the target temperature is set to the upper limit value ST2.
  • the target temperature is set to a higher value as the outside air temperature becomes higher.
  • the temperature adjustment unit 50 changes the target temperature in the range from the lower limit value ST1 to the upper limit value ST2 based on the outside air temperature.
  • the target temperature When the outside air temperature is high, the target temperature is set high, and when the outside air temperature is low, the target temperature is set low, so that the difference between the outside air temperature and the target temperature does not become too large.
  • the operation load of the temperature control unit 50 is relatively small, and power consumption by the temperature control unit 50 is reduced. As a result, a decrease in the amount of electricity stored in the storage battery 30 is further suppressed.
  • step S03 the temperature of the heat transfer liquid LQ detected by the liquid temperature sensor 81 is acquired.
  • step S04 the rotational speed of the electric compressor 53 and the like are adjusted based on the difference between the temperature of the heat transfer liquid LQ and the target temperature.
  • the refrigerant flow path is switched so that the refrigerant pipe 54 functions as an evaporator. Further, the control is performed so that the rotational speed of the electric compressor 53 increases as the temperature difference between the temperature of the heat transfer liquid LQ and the target temperature increases.
  • the refrigerant flow path is switched so that the refrigerant pipe 54 functions as a condenser. Also in this case, control is performed so that the rotational speed of the electric compressor 53 increases as the temperature difference between the temperature of the heat transfer liquid LQ and the target temperature increases.
  • the state where the temperature of the heat transfer liquid LQ substantially matches the target temperature is maintained. Since the temperature of the storage battery 30 does not rise too much, the deterioration of the storage battery 30 can be suppressed and the charge / discharge function of the storage battery 30 can be maintained over a long period of time. In addition, since the temperature of the inverter 40 does not rise excessively, the occurrence of problems due to the temperature rise such as solder cracks in a part of the inverter 40 is prevented. As a result, the inverter 40 can be normally operated for a long time. In addition, since the battery management unit 32 is similarly prevented from malfunctioning due to a temperature rise, both the battery management unit 32 and the inverter 40 can be extended in life, and equivalent cost reduction can be achieved. Will be illustrated.
  • the process for changing the target temperature based on the outside air temperature steps S01 and S02
  • the process for matching the temperature of the heat transfer liquid LQ with the target temperature steps S03 and S04.
  • steps S01 and S02 the process for changing the target temperature based on the outside air temperature
  • steps S03 and S04 the process for matching the temperature of the heat transfer liquid LQ with the target temperature
  • FIG. 6 shows an example of a temperature change of the heat transfer liquid LQ when the power storage device 10 is operating.
  • the target temperature is indicated as “ST”.
  • the temperature adjustment unit 50 controls the operation of the electric compressor 53 and the like so that the temperature of the heat transfer liquid LQ falls within the range of the target temperature ST ⁇ 1 ° C.
  • the reason why such high-precision control can be performed is that heat transfer between the liquid storage container 60 and the outside is suppressed by the heat insulating material 70, and that the conversion efficiency of the inverter 40 is very high ( In other words, the amount of heat generated from the inverter 40 is very small).
  • FIG. 7 shows the relationship between the temperature of the storage battery 30 and the current capacity. As shown in the figure, when the temperature of the storage battery 30 falls below 0 ° C., the current capacity capable of input / output of the storage battery 30 is significantly reduced. When the temperature of the storage battery 30 is higher than 0 ° C., the current capacity of the storage battery 30 is sufficiently large and has a substantially constant value.
  • the storage battery 30 tends to easily deteriorate when its temperature continues to be higher than 20 ° C. Therefore, in order to sufficiently exhibit the performance of the storage battery 30 over a long period of time, it is preferable to maintain the temperature of the storage battery 30 within the range of 0 ° C. to 20 ° C., particularly within the range of 10 ° C. to 20 ° C.
  • the temperature control unit 50 is configured to change the target temperature of the heat transfer liquid LQ in a range from 10 ° C. to 20 ° C. based on the outside air temperature. Thereby, the state where the current capacity of the storage battery 30 is sufficiently large and the deterioration of the storage battery 30 is difficult to proceed is stably maintained.
  • the configuration of the heat insulating material 70 will be described with reference to FIG.
  • the heat insulating material 70 includes a sheet 71 and a core material 72.
  • the sheet 71 is formed of a material having low gas permeability and flexibility.
  • the two sheets 71 are overlapped with each other and the ends thereof are heat-sealed, and the whole is a bag-like container.
  • the core material 72 is glass wool formed in a flat plate shape.
  • the core material 72 is accommodated in the sheet
  • the heat insulating material 70 has a configuration in which the bag-like sheet 71 is hermetically sealed in a state where the internal space of the sheet 71, that is, the space around and inside the core material 72 is decompressed.
  • the heat insulating material 70 configured as such a vacuum heat insulating material is a relatively thin plate-shaped heat insulating material, its heat insulating performance is extremely high.
  • the entire liquid storage container 60 and the refrigerant pipe 54 are substantially rectangular parallelepiped (hexahedral).
  • the heat insulating material 70 is arrange
  • the hexahedron is formed by combining two heat insulating materials 70 (heat insulating materials 70a and 70b).
  • FIG. 9 shows the shapes of the heat insulating materials 70a and 70b.
  • FIG. 10 shows a state in which the heat insulating materials 70a and 70b are combined to form the above hexahedron.
  • each of the heat insulating materials 70a and 70b is bent vertically at two locations. Further, in each of the heat insulating materials 70a and 70b, the two lines that become the creases are parallel to each other.
  • the folded heat insulating material 70a is disposed so as to cover three of the six surfaces of the hexahedron. Similarly, the folded heat insulating material 70b is arranged so as to cover the remaining three surfaces among the six surfaces of the hexahedron.
  • the plurality of heat insulating materials 70 formed in a plate shape are arranged so as to surround the periphery of the liquid storage container 60 along six mutually perpendicular surfaces. Specifically, each of the two heat insulating materials 70a and 70b is bent at two locations, and each surrounds the periphery of the liquid storage container 60 over three surfaces.
  • a method for forming the hexahedron by combining the heat insulating material 70 various methods different from the above can be adopted. For example, it is good also as a structure arrange
  • the hexahedron may be formed by combining six heat insulating materials 70. However, in this case, twelve sides that form the boundary between the heat insulating materials 70 adjacent to each other, that is, the sides that cause the passage of heat because the core material 72 is not continuously arranged, are formed. Will end up.
  • thermal bridge side B a side where the heat insulating material 70 is broken, that is, a side where heat does not pass due to the core material 72 being continuously arranged therein is referred to as “heat insulating side A”.
  • the power storage device 10 has a configuration in which the periphery of the storage battery 30, the battery management unit 32, and the inverter 40 is filled with the heat transfer liquid, and further the temperature adjustment by the temperature adjustment unit 50 and the heat insulating material 70. This is combined with the heat insulation effect.
  • the power storage device 10 having the above-described configuration has been able to extend the life of the power storage device 10 approximately twice compared to the conventional one. As a result, replacement in a short period is unnecessary, and the substantial cost of the power storage device 10 can be reduced to 1 ⁇ 2.
  • urethane foam may be filled in a space formed between the liquid storage container 60 and the heat insulating material 70, that is, a space around the refrigerant pipe 54, to prevent displacement of the refrigerant pipe 54 and the like.
  • a metal container that accommodates the liquid storage container 60 may be further provided, and a coolant channel may be formed on the wall of the metal container itself.
  • the flow path functions as the refrigerant pipe 54.
  • a device for example, a rotating electrical machine that operates by receiving power supplied from the power storage device 10 may be provided integrally with the power storage device 10.
  • the storage battery 30 etc. which comprise the electrical storage apparatus 10, and the said apparatus may be the aspect accommodated in the inside of the common case 20.
  • FIG. 1 A device (for example, a rotating electrical machine) that operates by receiving power supplied from the power storage device 10 may be provided integrally with the power storage device 10.
  • the storage battery 30 etc. which comprise the electrical storage apparatus 10 may be the aspect accommodated in the inside of the common case 20.
  • only one set of the storage battery 30, the battery management unit 32, and the inverter 40 is disposed inside the storage container 60.

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JP6607137B2 (ja) 2019-11-20
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