Power storage facility

Abstract

To provide a power storage facility that minimizes space requirements while being capable of improving air conditioning performance (cooling or heating capacity).SOLUTION: A power storage facility comprises an electrical panel 100 accommodating at least one of a power storage device 122 and a power converter, an air conditioner positioned above a top plate 116 of the electrical panel and circulating air within the panel's interior space through an intake port 116a and exhaust port 116b formed in the top plate, and thermal insulating materials 130 to 135 arranged on the inner surface of the top plate to allow air passage through the intake and exhaust ports.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to an electricity storage facility. [Background technology]

[0002] Patent Document 1 discloses a power conditioner that includes a sealed storage panel and a heat exchanger that draws in air from inside the storage panel, dissipates heat into air drawn in from the outside to lower the temperature, and then discharges the heat into the storage panel. The heat exchanger is attached to the lower back of the storage panel, and a roof is placed on the top surface of the storage panel, and the roof is equipped with heat insulation material to prevent heat from direct sunlight from being transmitted to the top surface of the storage panel (see paragraphs

[0042] -

[0043] , etc., in the specification of Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6345578 Summary of the Invention [Problem to be solved by the invention]

[0004] The power conditioner disclosed in Patent Document 1 has a heat exchanger disposed on the back of the enclosure and a roof equipped with heat insulating material disposed on the top surface of the enclosure, thereby improving the cooling performance inside the enclosure. However, this power conditioner configuration requires space for the heat exchanger on the back of the enclosure, which can make it difficult to install the power conditioner in small spaces.

[0005] The present invention was made by the inventors of the present application by focusing on the above-mentioned problem, and aims to provide an energy storage facility that can improve air conditioning performance (cooling performance or heating performance) while saving space. [Means for solving the problem]

[0006] An energy storage facility according to one aspect of the present invention comprises an electrical panel that houses at least one of an energy storage element and a power converter, an air conditioning unit that is arranged above a top plate of the electrical panel and that circulates air in the internal space of the electrical panel through an air intake port and an air exhaust port formed in the top plate, and an insulating material that is arranged on the inner surface of the top plate so that air can pass through the air intake port and the air exhaust port. [Effects of the Invention]

[0007] According to the electricity storage facility of the present invention, it is possible to improve air conditioning performance while saving space. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing the configuration of an electricity storage facility according to an embodiment. [Figure 2] FIG. 2 is a perspective view showing the configuration of four electrical panels and four air conditioners included in the power storage facility according to the embodiment. [Figure 3] FIG. 3 is a perspective view showing the configuration of the electricity storage device provided in the electrical panel according to the embodiment. [Figure 4] FIG. 4 is a cross-sectional view showing the internal configuration of the electrical panel according to the embodiment. [Figure 5] FIG. 5 is a cross-sectional view showing the configuration of a heat insulating material disposed on the top plate of the electrical panel according to the embodiment. [Figure 6] FIG. 6 is a cross-sectional view showing the configuration of a heat insulating material arranged on a top plate of an electrical panel according to a first modification of the embodiment. [Figure 7] FIG. 7 is a cross-sectional view showing the configuration of a heat insulating material disposed on a top plate of an electrical panel according to a second modification of the embodiment. [Figure 8] FIG. 8 is a cross-sectional view showing the configuration of a heat insulating material arranged on a top plate of an electrical panel according to a third modification of the embodiment. [Figure 9] FIG. 9 is a cross-sectional view showing the configuration of a heat insulating material arranged on a top plate of an electrical panel according to a fourth modification of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] (1) An aspect of the present invention provides an energy storage facility comprising: an electrical panel that houses at least one of an energy storage element and a power converter; an air conditioning unit that is disposed above a top plate of the electrical panel and that circulates air in the interior space of the electrical panel through an air intake port and an air exhaust port formed in the top plate; and an insulating material that is disposed on the inner surface of the top plate so that air can pass through the air intake port and the air exhaust port.

[0010] According to one aspect of the present invention, the power storage facility includes an air conditioning unit disposed above a top plate of an electrical panel, and a thermal insulator disposed on the inner surface of the top plate so as to allow air to pass through the air intake and exhaust ports of the air conditioning unit formed in the top plate. By disposing the air conditioning unit above the top plate of the electrical panel in this manner, the electrical panel can be installed even in a small space, such as a narrow lot, thereby saving space. In this configuration, if a thermal insulator is disposed on the inner surface of the top plate of the electrical panel to improve air conditioning performance (cooling performance or heating performance), the thermal insulator may block the air intake and exhaust ports of the air conditioning unit formed in the top plate. Therefore, the thermal insulator is disposed on the inner surface of the top plate so as to allow air to pass through the air intake and exhaust ports. This allows the power storage facility to improve air conditioning performance while saving space.

[0011] (2) In the electric storage facility described in (1) above, the heat insulating material may be disposed at a position on the inner surface of the top plate that is different from a position facing the air conditioning device.

[0012] According to the power storage equipment described in (2) above, by arranging the insulating material in a position on the inner surface of the top plate of the electrical panel different from the position facing the air conditioner, the amount of insulating material can be reduced compared to arranging insulating material in the position facing the air conditioner. In particular, the portion of the top plate facing the air conditioner often has higher insulating properties than other portions because it is shaded by the air conditioner or because insulating material is arranged inside the air conditioner. Therefore, even if insulating material is not arranged in the position facing the air conditioner on the inner surface of the top plate, there is little impact on air conditioning performance.

[0013] (3) In the electric storage facility described in (1) or (2) above, the heat insulating material may have openings formed in positions facing the intake port and the exhaust port.

[0014] According to the power storage facility described in (3) above, openings are formed in the heat insulating material at positions facing the intake and exhaust ports of the air conditioner. This allows the heat insulating material to surround the positions facing the intake and exhaust ports on the inner surface of the top plate, while preventing the heat insulating material from interfering with the intake and exhaust ports of the air conditioner.

[0015] (4) In the energy storage equipment described in any one of (1) to (3) above, the heat insulating material may further be arranged on the inner surface of at least one of the two side panels, the front panel, the rear panel, and the bottom panel of the electrical panel.

[0016] According to the energy storage equipment described in (4) above, the insulation material is disposed on the inner surface of at least one of the two side panels, the front panel, the rear panel, and the bottom panel of the electrical panel, in addition to the top panel of the electrical panel, thereby further improving the insulation of the interior of the electrical panel. In particular, when the electrical panel is made of a material with high thermal conductivity, such as metal, heat transferred to the top panel is also transferred to panels other than the top panel. Therefore, in addition to suppressing heat transfer from the top panel to the interior of the electrical panel by using the insulation material on the inner surface of the top panel, providing insulation material on the inner surfaces of panels other than the top panel also further improves the insulation of the interior of the electrical panel.

[0017] (5) In the energy storage facility described in any one of (1) to (4) above, the air conditioning device may direct the air flowing downward from the exhaust port to a first object which is at least one of the energy storage element and the power converter, and direct the air flowing upward toward the intake port to a second object different from the first object.

[0018] According to the power storage facility described in (5) above, the air conditioner directs air flowing downward from the exhaust port to a first object, and directs air flowing upward toward the intake port to a second object. The first object is at least one of a power storage element and a power converter, and is an object that is highly in need of being directed with conditioned air (temperature-regulated) in order to maintain performance or efficiency, etc. The second object is an object that is less in need of being directed with conditioned air (temperature-regulated) than the first object. By directing air toward the first object first, the air conditioner can effectively regulate the temperature of the first object.

[0019] (6) In the energy storage facility described in any one of (1) to (5) above, the electrical panel may include a storage panel that houses the energy storage element and a power conversion panel that houses the power converter, and the air conditioning device and the heat insulating material may be provided in each of the storage panel and the power conversion panel.

[0020] According to the energy storage facility described in (6) above, an air conditioner and a heat insulating material are provided in each of the power storage panel that houses the energy storage elements and the power conversion panel that houses the power converter, thereby enabling space saving and improved air conditioning performance in each of the power storage panel and the power conversion panel.

[0021] Hereinafter, with reference to the drawings, a description will be given of a power storage facility according to an embodiment of the present invention (including its modified examples). The embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, component placement and connection configurations, manufacturing processes, and the order of manufacturing processes shown in the following embodiments are examples only and are not intended to limit the present invention. In each drawing, dimensions and the like are not strictly illustrated. In each drawing, the same or similar components are designated by the same reference numerals.

[0022] In the following description and drawings, the width direction of the electrical panel housing, or the direction in which the two side panels of the housing face each other, is defined as the X-axis direction. The depth direction of the electrical panel housing, or the direction in which the front and rear panels of the housing face each other, is defined as the Y-axis direction. The arrangement direction of the electrical panel and the air conditioning unit, the height direction of the electrical panel housing, the direction in which the top and bottom panels of the housing face each other, the arrangement direction of the power storage devices sandwiching the shelf panels of the housing, and the vertical direction or up-down direction are defined as the Z-axis direction. These X-axis, Y-axis, and Z-axis directions intersect each other (orthogonal in this embodiment).

[0023] In the following explanation, the positive X-axis direction refers to the direction of the arrow on the X-axis, and the negative X-axis direction refers to the direction opposite to the positive X-axis direction. When simply referring to the X-axis direction, it refers to both or either of the positive X-axis direction and the negative X-axis direction. The same applies to the Y-axis and Z-axis directions. Expressions indicating relative directions or attitudes, such as parallel and perpendicular, also include cases where the direction or attitude is not strictly that. When two directions are parallel (or perpendicular), it does not only mean that the two directions are completely parallel (or perpendicular), but also means that the directions are substantially parallel (or perpendicular), that is, there is a difference of, for example, a few percent. In the following explanation, when the term "insulation" is used, it means "electrical insulation." An insulating material has a volume resistivity of 1×10 6 Ωm or more, more preferably 1×10 7 Ωm or more, more preferably 1×10 10 It is preferable that the material be made of a material with a resistance of Ωm or more.

[0024] (Embodiment) [1 General description of the energy storage facility 1] First, an overall description of the power storage facility 1 according to the present embodiment will be given. FIG. 1 is a perspective view showing the configuration of the power storage facility 1 according to the present embodiment. FIG. 2 is a perspective view showing the configuration of four electrical panels 100 and four air conditioners 200 included in the power storage facility 1 according to the present embodiment. In FIG. 2, a front panel 113 is removed from a housing 110 of one electrical panel 100 (101) to show the internal configuration of the housing 110, and the housing 110 and the air conditioners 200 are appropriately seen through, with parts to be described indicated by dashed lines. FIG. 3 is a perspective view showing the configuration of a power storage device 120 included in the electrical panel 100 according to the present embodiment. In FIG. 3, an exterior body 121 of the power storage device 120 is seen through, and the internal configuration of the exterior body 121 is indicated by dashed lines.

[0025] The power storage facility 1 is a facility that charges and discharges electricity and supplies it to an external power load. The power storage facility 1 is a stationary battery used for business or home use, and is used for power storage or power supply purposes. In this embodiment, the power storage facility 1 is an outdoor-spec facility that is installed outdoors (can be installed outdoors), and has dustproof and waterproof properties to the extent necessary for outdoor installation. The power storage facility 1 is installed in a large mobile object such as a ship or a railway vehicle for an electric railway, and can also be used as a battery for driving the large mobile object or starting the engine. Examples of the above-mentioned railway vehicle for an electric railway include electric trains, monorails, linear motor cars, and hybrid trains equipped with both a diesel engine and an electric motor.

[0026] As shown in FIG. 1 , the power storage facility 1 includes an electrical panel 100, an air conditioner 200 arranged above the electrical panel 100, an electrical panel 300, and an air conditioner 400 arranged above the electrical panel 300. Specifically, the power storage facility 1 includes a plurality of electrical panels 100, a plurality of air conditioners 200 arranged above the plurality of electrical panels 100, one electrical panel 300, and a plurality of air conditioners 400 arranged above the single electrical panel 300. In this embodiment, ten electrical panels 100 are arranged in five sets of two electrical panels 100 arranged in the Y-axis direction in the X-axis direction, and one electrical panel 300 is located in the positive direction of the X-axis. These electrical panels 100 and 300 are arranged adjacent to each other in the X-axis direction or the Y-axis direction. "Adjacent to each other in the X-axis direction" refers to a state in which the panels are arranged relatively close to each other in the X-axis direction, and includes cases in which the panels are in contact with each other in the X-axis direction and cases in which the panels are close to each other but not in contact with each other in the X-axis direction. The same applies when they are arranged adjacently in the Y-axis direction. In each electrical panel 100, one air conditioner 200 is arranged above one electrical panel 100. Four air conditioners 400 are arranged above the electrical panel 300, with two air conditioners 400 lined up in the Y-axis direction forming two sets in the X-axis direction.

[0027] In this embodiment, the electrical panel 100 is a power storage panel that houses power storage elements. The electrical panel 300 is a power conversion panel that houses a power converter. Electric power received from the outside is converted by the electrical panel 300 and then supplied to the electrical panel 100, where it is charged. Electric power discharged by the electrical panel 100 is converted by the electrical panel 300 and then supplied to the outside.

[0028] Hereinafter, these multiple electrical panels 100 (storage panels) and electrical panels 300 (power conversion panels) will also be collectively referred to as electrical panels 10. The top panel of the electrical panel 100 (top panel 116 described below) and the top panel of the electrical panel 300 will also be collectively referred to as top panel 11. The multiple air conditioners 200 and the multiple air conditioners 400 will also be collectively referred to as air conditioners 20. In other words, the electrical panel 10 includes multiple electrical panels 100 (storage panels) and one electrical panel 300 (power conversion panel). The air conditioner 20 includes multiple air conditioners 200 and multiple air conditioners 400. The air conditioner 20 is arranged above the top panel 11 of the electrical panel 10. The numbers of electrical panels 100, electrical panels 300, air conditioners 200, and air conditioners 400 are not limited to those described above. As long as the configuration described below is satisfied, the electrical panel 10 may include any number of electrical panels 100, or may not include any electrical panels 100. The electrical panel 10 may include any number of electrical panels 300, or may not include any electrical panels 300. The air conditioner 20 may include any number of air conditioners 200, or may not include any air conditioners 200. The air conditioner 20 may include any number of air conditioners 400, or may not include any air conditioners 400.

[0029] [1.1 Description of Electrical Panels 100 and 300] Next, the configurations of the electrical panels 100 and 300 will be described in detail. First, the configuration of the electrical panel 100 will be described, and then the configuration of the electrical panel 300 will be described, focusing on the parts that differ from the electrical panel 100. Since the multiple electrical panels 100 provided in the power storage facility 1 (electrical panel 10) all have the same configuration, the configuration of one electrical panel 100 will be described in detail below.

[0030] The electrical panel 100 is a device that can charge electricity from an external source and discharge electricity to an external source, and has a rectangular parallelepiped shape. The electrical panel 100 is a stationary storage panel (battery panel) that stores various types of electricity, such as power from a commercial power system, power generated by generators, wind power, or solar power, and regenerative power from railway systems, and supplies stable power to external equipment. As described above, the electrical panel 100 is an outdoor-spec facility that is installed outdoors (can be installed outdoors) and has the dustproof and waterproof properties required for outdoor installation. Specifically, the electrical panel 100 has an IP2X, IP3X, IP4X, IP5X, or IP6X dustproof rating and an IPX3, IPX4, IPX5, IPX6, IPX7, or IPX8 waterproof rating according to the protection rating (IP code) defined by the IEC (International Electrotechnical Commission) standards.

[0031] As shown in FIG. 2, the electrical panel 100 includes a housing 110 and a plurality of power storage devices 120 arranged inside the housing 110. In addition to these components, the electrical panel 100 also includes electric wires and the like that connect the plurality of power storage devices 120 to one another, but these are not shown in the drawings and will not be described in detail. In this embodiment, within the housing 110, a plurality of (six) power storage devices 120 are arranged in the X-axis direction and are arranged in multiple tiers in the Z-axis direction. The number of power storage devices 120 arranged in the X-axis direction and the number of tiers arranged in the Z-axis direction are not particularly limited. The plurality of power storage devices 120 may all be connected in series, may be connected in a combination of series and parallel, or may all be connected in parallel.

[0032] The housing 110 is a rectangular parallelepiped (box-shaped) container (shelf, rack). The interior space of the housing 110 is partitioned into multiple sections, and multiple power storage devices 120 are housed within the partitioned spaces. The housing 110 is made of metal such as stainless steel, aluminum, aluminum alloy, iron, or plated steel. The housing 110 may be made of a material other than metal (such as resin), but is preferably made of a material that has high strength, heat resistance, and flame retardancy. The housing 110 includes side panels 111 and 112, a front panel 113, a rear panel 114, a bottom panel 115, a top panel 116, a first shelf panel 117, and a second shelf panel 118.

[0033] The side plates 111 and 112, the front plate 113, the rear plate 114, the bottom plate 115, and the top plate 116 are flat, rectangular wall portions that cover all six sides of the housing 110. Specifically, the side plate 111 is a wall of the housing 110 facing in the negative direction on the X axis, and the side plate 112 is a wall of the housing 110 facing in the positive direction on the X axis. The front plate 113 is a wall of the housing 110 facing in the negative direction on the Y axis. The front plate 113 is a cover member (door) that can be opened and closed (opened and closed freely) to close an opening on the surface (front face) of the housing 110 facing in the negative direction on the Y axis. The rear plate 114 is a wall of the housing 110 facing in the positive direction on the Y axis. The bottom plate 115 is a wall of the housing 110 facing in the negative direction on the Z axis. The top plate 116 is a wall of the housing 110 facing in the positive direction on the Z axis.

[0034] Through holes are formed in the lower parts of the side plates 111 and 112. As shown in FIG. 2 , of the four electrical boards 100, the electrical board 100 located in the positive direction of the X axis and the negative direction of the Y axis is also referred to as electrical board 101, and the electrical board 100 located in the negative direction of the X axis and the negative direction of the Y axis is also referred to as electrical board 102. The electrical boards 101 and 102 are adjacent to each other in the X axis direction. In this case, in the housing 110 provided for the electrical board 101, a through hole 111a is formed in the lower part of the side plate 111, and a through hole 112a is formed in the lower part of the side plate 112. In the housing 110 provided for the electrical board 102, a through hole 112b is formed in the lower part of the side plate 112 (the through hole in the lower part of the side plate 111 is not shown in the drawing).

[0035] As a result, through-hole 111a of electrical panel 101 and through-hole 112b of electrical panel 102 are arranged opposite each other, and a first member 30, which is wiring or piping, passes through through-holes 111a and 112b. First member 30 includes at least one of main circuit wiring, signal lines, grounding lines, commercial AC wiring, control power lines, cooling piping, heating piping, and fire extinguishing piping. Through-holes 111a and 112b are sealed by first cover 40 that covers the periphery of first member 30, thereby maintaining the above-mentioned dustproof and waterproof properties. The same applies to other through-holes such as through-hole 112a.

[0036] The top plate 116 is formed with a top plate first ventilation opening 116a and a top plate second ventilation opening 116b. The top plate first ventilation opening 116a and the top plate second ventilation opening 116b are through-holes formed in the top plate 116 to allow the air conditioner 200 to take in and exhaust air, and are arranged in a position facing the air conditioner 200. In the present embodiment, the top plate first ventilation opening 116a is arranged at the end of the top plate 116 in the negative direction of the Y axis, and the top plate second ventilation opening 116b is arranged at the end of the top plate 116 in the positive direction of the Y axis. The air conditioner 200, which is arranged above the top plate 116, circulates air in the internal space of the electrical panel 100 via the top plate first ventilation opening 116a and the top plate second ventilation opening 116b. That is, air whose temperature has been adjusted by the air conditioner 200 is exhausted from the top plate second vent 116b into the internal space of the electrical panel 100, the air circulates through the internal space of the electrical panel 100, and is then drawn into the air conditioner 200 from the top plate first vent 116a. From the perspective of the air conditioner 200, the top plate first vent 116a is an intake port, and the top plate second vent 116b is an exhaust port. From the perspective of the electrical panel 100, the top plate first vent 116a is an exhaust port, and the top plate second vent 116b is an intake port. The top plate first vent 116a and the top plate second vent 116b are sealed from the air conditioner 200, thereby maintaining the above-mentioned dustproofness and waterproofness.

[0037] The first shelf 117 and the second shelf 118 are walls that divide the space inside the housing 110. Each power storage device 120 is disposed inside the housing 110 by being supported by the first shelf 117 and the second shelf 118 within the space divided by the first shelf 117 and the second shelf 118. A plurality of power storage devices 120 are arranged in the X-axis direction on the first shelf 117, and a plurality of power storage devices 120 are arranged in the X-axis direction on the second shelf 118. A space in the negative Z-axis direction of the first shelf 117 where no power storage devices 120 are disposed is formed, and an electric unit (electrical component) that controls all of the power storage devices 120 is disposed therein. In this embodiment, the first shelf 117 and the second shelf 118 are flat, rectangular wall portions. An opening (not shown) is formed in the second shelf 118, and air circulating in the interior space of the electrical panel 100 can pass through the opening. No openings are formed in the first shelf 117, and the air circulating in the internal space of the electrical panel 100 cannot pass through the space in the negative Z-axis direction of the first shelf 117. The shapes of the first shelf 117 and the second shelf 118 are not particularly limited, and they may be narrow plate-like or rod-like members such as beams.

[0038] Next, the configuration of the energy storage device 120 will be described in detail. The energy storage device 120 is a battery module (battery assembly) having a substantially rectangular parallelepiped shape that is elongated in the Y-axis direction. The longitudinal direction of the energy storage device 120 is the Y-axis direction. As shown in FIG. 3, the energy storage device 120 includes an exterior body 121, a plurality of energy storage elements 122, and a substrate unit 123. In this embodiment, the plurality of energy storage elements 122 are arranged side by side in the Y-axis direction, but the arrangement direction and the number of the energy storage elements 122 are not particularly limited, and only one energy storage element 122 may be arranged. In addition to these components, the energy storage device 120 also includes bus bars and the like that connect terminals of the plurality of energy storage elements 122 to each other, but these are not shown in the drawings and detailed description will also be omitted. The energy storage device 120 may also include a pair of external terminals (positive and negative) for connecting to the outside, spacers arranged between the energy storage elements 122, restraining members (end plates, side plates, etc.) for restraining the energy storage elements 122, a bus bar frame for positioning the bus bar, etc., but these are not shown or described here.

[0039] The exterior body 121 is a box-shaped (rectangular parallelepiped) container (module case) that is elongated in the Y-axis direction and that constitutes the outer shell of the power storage device 120. The exterior body 121 houses the multiple energy storage elements 122, fixes the multiple energy storage elements 122 in predetermined positions, and protects them from impacts and the like. The exterior body 121 is formed from an insulating material such as resin, and prevents the energy storage elements 122 from coming into contact with external metal members and the like. The exterior body 121 may be formed from a conductive material such as metal, as long as the insulating properties of the energy storage elements 122 are maintained.

[0040] The energy storage element 122 is a secondary battery (single cell) that can charge and discharge electricity, and more specifically, is a non-aqueous electrolyte secondary battery such as a lithium ion secondary battery. In this embodiment, the energy storage element 122 has a flattened rectangular parallelepiped (square) shape, but the shape of the energy storage element 122 is not limited to a rectangular parallelepiped shape and may be a polygonal prism shape other than a rectangular parallelepiped, a cylindrical shape, an elongated cylindrical shape, an elliptical cylindrical shape, or the like. The energy storage element 122 may be a secondary battery other than a non-aqueous electrolyte secondary battery, or may be a capacitor. The energy storage element 122 may be a primary battery. The energy storage element 122 may be a battery using a solid electrolyte. The energy storage element 122 may be a pouch-type energy storage element.

[0041] The board unit 123 is a device that can monitor the states of the energy storage elements 122, such as the charge state and discharge state, and control the energy storage elements 122. The board unit 123 has electrical equipment such as a circuit board (CMU: Cell Management Unit) inside. In this embodiment, the board unit 123 is a flat rectangular member that is attached to the end of the exterior body 121 on the negative Y-axis direction, and is thereby disposed at the end of the energy storage device 120 on the negative Y-axis direction.

[0042] Next, a detailed description will be given of the configuration of the electrical panel 300. The electrical panel 300 is a stationary power conversion panel (PCS panel, power conditioner) that has a housing similar to the electrical panel 100 and has a power converter and copper bars (not shown) inside the housing.

[0043] The housing of the electrical panel 300, like the housing 110 of the electrical panel 100, has six flat, rectangular walls: two side panels, a front panel, a rear panel, a bottom panel, and a top panel. Of the two side panels of the housing of the electrical panel 300, the side panel facing the electrical panel 100 has a through-hole (not shown) formed in the lower part, like the side panels 111 and 112 of the housing 110 of the electrical panel 100. The top panel of the housing of the electrical panel 300 has a top panel first vent hole and a top panel second vent hole (not shown) formed therein for the intake and exhaust of air by the air conditioner 400, like the top panel 116 of the housing 110 of the electrical panel 100. As such, the housing of the electrical panel 300 has a similar configuration to the housing 110 of the electrical panel 100, and therefore a detailed description thereof will be omitted.

[0044] The power converter and copper bars included in the electrical panel 300 may be any known power converter and copper bar. The power converter is electrically connected to the power storage device 120 included in the electrical panel 100 and converts power to or from the electrical panel 100. The power converter converts AC power to DC power (AC-DC conversion), converts DC power to AC power (DC-AC conversion), or converts voltage or frequency to a different value (DC-DC conversion, AC-AC conversion). In this embodiment, the power converter converts power to the electrical panel 100 from AC power to DC power and adjusts the voltage of the power, and converts power from the electrical panel 100 from DC power to AC power and adjusts the voltage of the power. The electrical panel 300 may also include electrical equipment (electrical components) such as a breaker.

[0045] 1.2 Description of Air Conditioners 200 and 400 Next, the configurations of the air conditioners 200 and 400 will be described in detail. First, the configuration of the air conditioner 200 will be described, and then the configuration of the air conditioner 400 will be described, focusing on the differences from the air conditioner 200. The multiple air conditioners 200 included in the power storage facility 1 (air conditioners 20) all have the same configuration, and the multiple air conditioners 400 all have the same configuration.

[0046] The air conditioner 200 is a device having at least one of a cooling function and a heating function. In this embodiment, the air conditioner 200 has both a cooling function and a heating function, and performs cooling or heating by switching between cooling operation and heating operation. From the viewpoint of cost reduction, the air conditioner 200 may be equipped with an air conditioner (cooler) dedicated to cooling and a heater separate from the air conditioner. In this case, the air conditioner 200 may stop the exhaust fan when the heater is in use. In this embodiment, the air conditioner 200 is a heat exchange type air conditioner.

[0047] As shown in FIG. 2, the air conditioner 200 is disposed above the top plate 116 of the housing 110 of the electrical panel 100. Specifically, the air conditioner 200 includes an air conditioner main body 210, which is disposed in a position facing a top plate first vent opening 116a and a top plate second vent opening 116b formed in the top plate 116. As a result, the air conditioner 200 circulates air in the internal space of the electrical panel 100 via the top plate first vent opening 116a and the top plate second vent opening 116b formed in the top plate 116. In this embodiment, the air conditioner 200 is disposed above the top plate 116 with the air conditioner main body 210 in contact with (resting on) the top plate 116. The air conditioning device 200 may be placed above the top plate 116 with the air conditioning device main body 210 spaced apart from the top plate 116, for example, by placing other components between the air conditioning device main body 210 and the top plate 116.

[0048] During cooling, air conditioner 200 exhausts cooled air from top plate second vent 116b into the interior of electrical panel 100, uses the air to cool power storage device 120 located in the interior space of electrical panel 100, and then draws heated air into air conditioner 200 from top plate first vent 116a. During heating, air conditioner 200 exhausts heated air from top plate second vent 116b into the interior of electrical panel 100, uses the air to heat the interior space of electrical panel 100, and then draws cooled air into air conditioner 200 from top plate first vent 116a. Air conditioner 200 cools or heats power storage device 120 (particularly power storage element 122; the same applies below) inside electrical panel 100 by cooling or heating the interior space of electrical panel 100. In cold regions, the air conditioner 200 heats the power storage device 120 inside the electrical panel 100 with heating, and when the temperature of the power storage device 120 becomes high, cools the power storage device 120 with cooling.

[0049] The air conditioner 200 has a configuration in which the indoor unit and outdoor unit of a heat exchange type air conditioner are integrated into the same case. Therefore, the air conditioner 200 further includes an external air intake vent 220 and an external air exhaust vent 230 that communicate with the ambient air around the electrical panel 100. The external air intake vent 220 is an opening for drawing in ambient air around the electrical panel 100, and the external air exhaust vent 230 is an opening for exhausting air to the ambient air around the electrical panel 100. In other words, the top plate first air vent 116a and the top plate second air vent 116b are the air intake vent and the air exhaust vent that allow the air conditioner 200 to function as an indoor unit. The external air intake vent 220 and the external air exhaust vent 230 are the air intake vent and the air exhaust vent that allow the air conditioner 200 to function as an outdoor unit. The portion corresponding to the outdoor unit and the portion corresponding to the indoor unit are separated, so that the air inside the electrical panel 100 and the air around the electrical panel 100 do not mix.

[0050] The external air intake vent 220 and the external air exhaust vent 230 are disposed on the side or top surface (side surface in this embodiment) of the air conditioner body 210. Taking the air conditioner 201, which is the air conditioner 200 disposed above the electrical panel 101, as an example, the external air intake vent 220 of the air conditioner 201 is disposed on the surface of the air conditioner body 210 in the negative Y-axis direction (the surface facing outward). This prevents the external air intake vent 220 from being buried in snow during snowfall. The surface of the air conditioner body 210 of the air conditioner 201 in the negative Y-axis direction is preferably disposed in a position close to the front panel 113 of the housing 110 of the electrical panel 101 in the Y-axis direction, in order to prevent the external air intake vent 220 from being buried in snow during snowfall. For this reason, the surface of the air conditioner body 210 of the air conditioner 201 in the negative Y-axis direction may be disposed in the same position as the front panel 113 of the electrical panel 101 in the Y-axis direction. External exhaust port 230 is disposed on the surface of air conditioner main body 210 in the X-axis direction. Because warm air is exhausted from external exhaust port 230, even when snow has accumulated, the warm air melts the snow, preventing external exhaust port 230 from becoming buried in snow. External intake port 220 or external exhaust port 230 may be provided with a hood or the like to prevent snow accumulation or snow blowing from the side.

[0051] Like the air conditioner 200, the air conditioner 400 has both cooling and heating functions. The air conditioner 400 is disposed above the top plate of the electrical panel 300. The air conditioner 400 circulates air in the interior space of the electrical panel 300 through a first top plate vent (not shown) and a second top plate vent (not shown) formed in the top plate of the electrical panel 300. The air conditioner 400 cools or heats the interior space of the electrical panel 300, thereby cooling or heating the power converters and other components inside the electrical panel 300. The air conditioner 400 may be configured to have only a cooling function if it is not necessary to heat the power converters and other components inside the electrical panel 300. Like the air conditioner 200, the air conditioner 400 has an external air intake vent 420 and an external air exhaust vent 430 that communicate with the air surrounding the electrical panel 300 (see FIG. 1). The configurations of the external intake port 420 and the external exhaust port 430 provided in the air conditioner 400 are similar to the external intake port 220 and the external exhaust port 230 provided in the air conditioner 200, and therefore detailed description thereof will be omitted.

[0052] [2 Detailed explanation of the internal configuration of the electrical panels 100 and 300] Next, the internal configuration of the electrical panels 100 and 300 will be described in detail. First, the internal configuration of the electrical panel 100 will be described, and then the internal configuration of the electrical panel 300 will be described, focusing on the parts that differ from the electrical panel 100. Since the multiple electrical panels 100 provided in the power storage facility 1 (electrical panel 10) all have the same internal configuration, the internal configuration of one electrical panel 100 will be described in detail below.

[0053] [2.1 Detailed explanation of the internal configuration of the electrical panel 100] Fig. 4 is a cross-sectional view showing the internal configuration of the electrical panel 100 according to this embodiment. Fig. 4 shows a cross-section of the electrical panel 100 (101) shown in Fig. 2 taken along a plane parallel to the YZ plane at the positions of the top panel first ventilation opening 116a and the top panel second ventilation opening 116b of the top panel 116 of the housing 110. Fig. 5 is a cross-sectional view showing the configuration of the heat insulating material 131 arranged on the top panel 116 of the electrical panel 100 according to this embodiment. Fig. 5 shows a cross-section of the configuration shown in Fig. 4 taken along a plane passing through the VV line and parallel to the XY plane.

[0054] 4 and 5, the energy storage facility 1 includes a heat insulating material 130 inside the electrical panel 100. The heat insulating material 130 may be any material having heat insulating properties, and any known material may be used as appropriate. Examples of materials for the heat insulating material 130 include glass wool, rock wool, cellulose fiber, insulation board, sheep wool, carbonized cork, hard urethane foam, and urethane board.

[0055] The heat insulating material 130 is arranged on the inner surface of the housing 110 of the electrical panel 100. Specifically, the heat insulating material 130 is arranged on the inner surface of the top plate 116 of the housing 110 of the electrical panel 100. The heat insulating material 130 is further arranged on the inner surface of at least one of the two side plates 111, 112, the front plate 113, the rear plate 114, and the bottom plate 115 of the housing 110 of the electrical panel 100. In this embodiment, the heat insulating material 130 is arranged on the inner surfaces of all of these plates. In other words, the heat insulating material 130 is arranged on all six inner surfaces of the housing 110 of the electrical panel 100. The heat insulating material 130 includes a heat insulating material 131, a pair of heat insulating materials 132, a heat insulating material 133, a heat insulating material 134, and a heat insulating material 135.

[0056] The heat insulating material 131 is disposed on the inner surface of the top plate 116 of the housing 110 of the electrical panel 100. The heat insulating material 131 is fixed to the inner surface of the top plate 116 by adhesion (sticking) with adhesive or double-sided tape, screws, hooks, or fittings, and is attached to the inner surface of the top plate 116. The heat insulating material 131 is disposed on the inner surface of the top plate 116 so that air can pass through the first top plate vent 116a and the second top plate vent 116b formed in the top plate 116. As described above, from the perspective of the air conditioner 200, the first top plate vent 116a is an intake port, and the second top plate vent 116b is an exhaust port. For this reason, hereinafter, the first top plate vent 116a will also be referred to as the top plate intake port 116a, and the second top plate vent 116b will also be referred to as the top plate exhaust port 116b. That is, the heat insulating material 131 is disposed on the inner surface of the top plate 116 so that air can pass through the top plate air intake port 116a and the top plate air exhaust port 116b formed in the top plate 116.

[0057] In this embodiment, the insulating material 131 has an opening 131a formed in a position facing the top plate air intake 116a and the top plate exhaust 116b. In other words, when viewed from the Z-axis direction, the top plate air intake 116a and the top plate exhaust 116b are located inside the opening 131a. The insulating material 131 is not located in a position facing the top plate air intake 116a and the top plate exhaust 116b. The insulating material 131 is located in a position different from the position facing the top plate air intake 116a and the top plate exhaust 116b. Thus, the insulating material 131 is a flat, rectangular, annular insulating material with a relatively large opening 131a formed therein. This allows air entering and exiting the air conditioner 200 to pass through the top plate air intake 116a and the top plate exhaust 116b, allowing the air to travel between the electrical panel 100 and the air conditioner 200.

[0058] Opening 131a is a through-hole that penetrates thermal insulation 131 in the Z-axis direction and is rectangular when viewed from the Z-axis direction. Opening 131a has the same shape and size as the outer shape of air conditioner 200 when viewed from the Z-axis direction. As a result, thermal insulation 131 is disposed at a position on the inner surface of top plate 116 that is different from the position facing air conditioner 200. In other words, thermal insulation 131 is not disposed at the position facing air conditioner 200 on the inner surface of top plate 116.

[0059] In this embodiment, air conditioner 200 has a configuration in which the functions of an indoor unit and an outdoor unit of an air conditioner are integrated, and thermal insulation is arranged on the entire surface of the wall of the portion that functions as the indoor unit. This portion that functions as the indoor unit is a portion of air conditioner 200 that is connected to top panel air intake 116a and top panel exhaust 116b, and is arranged opposite top panel 116. In other words, thermal insulation is arranged on the inner surface of the wall of air conditioner 200 that faces top panel 116. As a result, the wall of air conditioner 200 that is provided with thermal insulation is arranged on the outer surface of the portion of top panel 116 that does not have thermal insulation 131 arranged on the inner surface. When viewed from the Z-axis direction, thermal insulation 131 is arranged outside opening 131a, and the thermal insulation provided on the wall of air conditioner 200 is arranged inside opening 131a. Thermal insulation may or may not be arranged on the wall of the portion of air conditioner 200 that functions as an outdoor unit.

[0060] The pair of heat insulating materials 132 are arranged on the inner surfaces of the side plates 111 and 112 of the housing 110 of the electrical panel 100. The pair of heat insulating materials 132 are flat, rectangular heat insulating materials arranged over the entire inner surfaces of the side plates 111 and 112. The heat insulating material 133 is arranged on the inner surface of the front plate 113 of the housing 110 of the electrical panel 100. The heat insulating material 133 is a flat, rectangular heat insulating material arranged over the entire inner surface of the front plate 113. The heat insulating material 134 is arranged on the inner surface of the rear plate 114 of the housing 110 of the electrical panel 100. The heat insulating material 134 is a flat, rectangular heat insulating material arranged over the entire inner surface of the rear plate 114. The heat insulating material 135 is arranged on the inner surface of the bottom plate 115 of the housing 110 of the electrical panel 100. The heat insulating material 135 is a flat, rectangular heat insulating material arranged over the entire inner surface of the bottom plate 115. The pair of insulating materials 132, 133, 134, and 135 are attached to the inner surfaces of the two side panels 111 and 112, the front panel 113, the rear panel 114, and the bottom panel 115 using a method similar to the method used to attach the insulating material 131 to the top panel 116 (such as by gluing).

[0061] As described above, the air conditioner 200 circulates air in the interior space of the electrical panel 100 through the top panel air intake 116a and the top panel exhaust 116b formed in the top panel 116. Specifically, as shown in FIG. 4 , during cooling or heating, the air conditioner 200 exhausts cooled or heated temperature-regulated air F1 downward (in the negative Z-axis direction) through the top panel exhaust 116b. The top panel exhaust 116b is positioned further in the positive Y-axis direction than the top panel air intake 116a, and the air F1 exhausted from the top panel exhaust 116b flows downward as air F2 along the thermal insulation 134. The downward-flowing air F2 collides with the second shelf 118, whereupon a portion of the air F2 branches off into air F3, which then flows along the second shelf 118 toward the front of the electrical panel 100 (in the negative Y-axis direction).

[0062] The air F3 flowing forward passes through the inside or outside of the exterior body 121 of the power storage device 120 arranged on the second shelf 118. As a result, the air F3 sequentially cools or warms the multiple power storage elements 122 inside the exterior body 121. Thereafter, the air F3 passes through the inside or outside of the board unit 123 located at the end of the power storage device 120 in the negative Y-axis direction. As a result, the air F3 cools or warms the circuit boards and the like inside the board unit 123, and then flows upward (in the positive Z-axis direction) as air F4 along the heat insulating material 133.

[0063] An opening 118a is formed in the second shelf 118 at an end closer to the positive side of the Y axis than the power storage devices 120, and an opening 118b is formed at an end closer to the negative side of the Y axis than the power storage devices 120. The openings 118a and 118b are through-holes that penetrate the second shelf 118 in the Z-axis direction. The openings 118a and 118b may be positioned in a position different from the power storage devices 120 in the X-axis direction, such as between two adjacent power storage devices 120, or may be positioned so as to overlap with the power storage devices 120. The openings 118a and 118b may be positioned in a position on the second shelf 118 other than the above, and the shape, size, and number of the openings 118a and 118b are not particularly limited.

[0064] Of the air F2 heading downward, air F2 that does not branch into air F3 passes through openings 118a formed in the second shelf 118 and heads further downward. The downward-heading air F2 collides with the next second shelf 118, and a portion of it branches into air F3. The branched air F3 sequentially cools and warms the energy storage elements 122 and board units 123 of the energy storage device 120 arranged on the second shelf 118. Thereafter, air F3 passes through openings 118b formed in the second shelf 118 and heads upward as air F4.

[0065] No openings are formed in the first shelf 117, and the air F2 that reaches the first shelf 117 does not flow below the first shelf 117, but flows along the first shelf 117 as air F3 toward the front of the electrical panel 100. This air F3 sequentially cools and warms the power storage elements 122 and board units 123 of the power storage device 120 arranged on the first shelf 117, and then passes through openings 118b formed in the second shelf 118 and flows upward as air F4. As a result, components such as the electric unit (electrical components) arranged below the first shelf 117 are not cooled or heated.

[0066] The air F4 from each air F3 joins together and flows upward, and is drawn in by the air conditioner 200 through the top panel air intake 116a as air F5.

[0067] In this manner, air conditioner 200 cools or heats the air flowing downward from top panel exhaust port 116b by blowing it against power storage element 122. Air conditioner 200 then cools or heats the air flowing upward toward top panel intake port 116a by blowing it against a circuit board or the like in board unit 123, which is an object other than power storage element 122. That is, as viewed from the Z-axis direction, power storage element 122 is disposed closer to top panel exhaust port 116b than circuit board, and circuit board 123 is disposed closer to top panel intake port 116a than power storage element 122. Therefore, air first hits power storage element 122 and then hits circuit board. "Blowing air against power storage element 122" is a concept that also includes blowing air against exterior body 121 that houses power storage element 122. The same applies to blowing air against a circuit board or the like.

[0068] The power storage element 122 is an example of a first object, and the circuit board in the board unit 123 is an example of a second object. In other words, both the first object and the second object are objects that need to be cooled or heated by adjusting the air that is blown onto them, but the first object is the object that needs to be cooled or heated more (the object that needs to be blown with air first).

[0069] [2.2 Detailed explanation of the internal configuration of the electrical panel 300] Next, a detailed description will be given of the internal configuration of the electrical panel 300. The power storage facility 1 also includes a heat insulating material (not shown) similar to the heat insulating material 130 inside the electrical panel 300. The material, configuration, etc. of the heat insulating material are similar to the material, configuration, etc. of the heat insulating material 130.

[0070] Specifically, the heat insulating material is disposed on the inner surface of the top plate of the housing of the electrical panel 300. The heat insulating material is further disposed on the inner surface of at least one of the two side plates, the front plate, the rear plate, and the bottom plate of the housing of the electrical panel 300 (in this embodiment, on the entire surface of all the inner surfaces). The heat insulating material is disposed on the inner surface of the top plate of the electrical panel 300 so that air can pass through a top plate air intake port and a top plate air exhaust port formed in the top plate. In this embodiment, the heat insulating material has openings formed in positions facing the top plate air intake port and the top plate air exhaust port. The heat insulating material is disposed at a position on the inner surface of the top plate that is different from a position facing the air conditioner 400. In this embodiment, heat insulating material is disposed on the inner surface of a wall of the air conditioner 400 that faces the top plate. The air conditioner 400 circulates air in the internal space of the electrical panel 300 through the top plate air intake port and the top plate air exhaust port formed in the top plate.

[0071] As described above, the electrical panel 300 includes a power converter and a copper bar (not shown). In this embodiment, when viewed from the Z-axis direction, the power converter is positioned closer to the top panel exhaust port than the copper bar, and the copper bar is positioned closer to the top panel air intake port than the power converter. Therefore, the air conditioner 400 first directs the air flowing downward from the top panel exhaust port against the power converter to cool or heat it, and then directs the air flowing upward toward the top panel air intake port against the copper bar, which is an object different from the power converter, to cool or heat it. The power converter is an example of a first object, and the copper bar is an example of a second object.

[0072] In this way, an air conditioner and a heat insulating material are provided in each of the electrical panel 100 as a power storage panel and the electrical panel 300 as a power conversion panel. The air conditioner directs air flowing downward from an exhaust port in the top panel of the electrical panel to a first object, which is at least one of the power storage elements 122 and the power converter, and directs air flowing upward toward the top panel intake port in the top panel to a second object different from the first object.

[0073] [3 Explanation of effects] As described above, the energy storage facility 1 according to the embodiment of the present invention includes the air conditioner 200 arranged above the top plate 116 of the electrical panel 100, and the heat insulating material 131 arranged on the inner surface of the top plate 116. The heat insulating material 131 is arranged on the inner surface of the top plate 116 so that air can pass through the top plate air intake 116a and the top plate exhaust vent 116b of the air conditioner 200 formed in the top plate 116 of the electrical panel 100. By arranging the air conditioner 200 above the top plate 116 of the electrical panel 100 in this way, it is possible to conserve space, for example by allowing the electrical panel 100 to be arranged on a small plot of land. In this configuration, if heat insulating material 131 is placed on the inner surface of top plate 116 of electrical panel 100 to improve air conditioning performance (cooling performance or heating performance), there is a risk that heat insulating material 131 will block top plate air inlet 116a and top plate exhaust port 116b of air conditioner 200 formed in top plate 116. For this reason, heat insulating material 131 is placed on the inner surface of top plate 116 so that air can pass through top plate air inlet 116a and top plate exhaust port 116b. As a result, power storage equipment 1 can improve air conditioning performance while saving space.

[0074] By arranging the insulating material 131 at a position on the inner surface of the top plate 116 of the electrical panel 100 different from the position facing the air conditioner 200, the amount of insulating material 131 can be reduced compared to arranging the insulating material 131 also at the position facing the air conditioner 200. In particular, the portion of the top plate 116 facing the air conditioner 200 often has higher insulating properties than other portions because it is shaded by the air conditioner 200 or because insulating material is arranged inside the air conditioner 200. For this reason, even if the insulating material 131 is not arranged at the position facing the air conditioner 200 on the inner surface of the top plate 116, there is little impact on air conditioning performance.

[0075] An opening 131a is formed in the heat insulating material 131 at a position facing the top plate air intake port 116a and the top plate exhaust port 116b of the air conditioner 200. This allows the heat insulating material 131 to surround the periphery of the position facing the top plate air intake port 116a and the top plate exhaust port 116b on the inner surface of the top plate 116, and to prevent the heat insulating material 131 from interfering with the intake and exhaust of the air conditioner 200.

[0076] In addition to the top plate 116 of the electrical panel 100, the heat insulating material 130 is arranged on the inner surface of at least one (in this embodiment, all) of the two side plates 111 and 112, the front plate 113, the rear plate 114, and the bottom plate 115 of the electrical panel 100. This can further improve the thermal insulation of the interior of the electrical panel 100. In particular, when the electrical panel 100 is made of a material with high thermal conductivity, such as metal, heat transferred to the top plate 116 will also be transferred to plates other than the top plate 116. Therefore, in addition to the heat transfer from the top plate 116 to the interior of the electrical panel 100 being suppressed by the heat insulating material 131 on the inner surface of the top plate 116, by providing the heat insulating material 130 on the inner surfaces of the plates other than the top plate 116, the thermal insulation of the interior of the electrical panel 100 can be further improved.

[0077] The air conditioner 200 applies air flowing downward from the top panel exhaust port 116b to a first object, and applies air flowing upward toward the top panel intake port 116a to a second object. The first object is at least one of the power storage device 122 and the power converter (power storage device 122 in this embodiment), and is an object that is highly in need of being exposed to conditioned air (temperature-regulated) in order to maintain performance or efficiency. The second object is an object (such as a circuit board in this embodiment) that is less in need of being exposed to conditioned air (temperature-regulated) than the first object. Although the second object still requires being exposed to conditioned air (temperature-regulated), the need for this is low because it has little direct impact on performance or efficiency. By applying air to the first object first, the air conditioner 200 can effectively regulate the temperature of the first object. Then, by applying air to the second object as well, the air conditioner 200 can also regulate the temperature of the second object.

[0078] An air conditioning device and heat insulating material are provided in each of the power storage panel (electrical panel 100) that houses the power storage elements 122 and the power conversion panel (electrical panel 300) that houses the power converter. This allows for space savings and improved air conditioning performance in each of the power storage panel and the power conversion panel. The power storage panel and the power conversion panel can be installed outdoors, etc., to configure the power storage facility 1 without any structures such as a building or container. By adopting an air conditioning structure based on a similar concept for the power storage panel and the power conversion panel, costs can be reduced.

[0079] In the above-mentioned effects, the effects of the electrical panel 100 can be similarly applied to the electrical panel 300. The effects of the air conditioner 200 can be similarly applied to the air conditioner 400.

[0080] [4 Explanation of Variations] Although the energy storage facility 1 according to the embodiment of the present invention has been described above, the present invention is not limited to this embodiment. The embodiment disclosed herein is an example in all respects, and the scope of the present invention includes all modifications within the meaning and scope of the claims.

[0081] (Variation 1) In the above embodiment, the heat insulating material 131 is not arranged at a position facing the air conditioner 200 on the inner surface of the top plate 116 of the housing 110 of the electrical panel 100, but the heat insulating material 131 may be arranged. Fig. 6 is a cross-sectional view showing the configuration of the heat insulating material 131A arranged on the top plate 116 of the electrical panel 100 according to the first modification of the present embodiment. Fig. 6 is a view corresponding to Fig. 5.

[0082] As shown in FIG. 6 , the thermal insulation material 130 of this modification includes a thermal insulation material 131A instead of the thermal insulation material 131 included in the thermal insulation material 130 of the above embodiment. The thermal insulation material 131A has an opening 131b formed in a position facing the top plate air intake port 116a and the top plate exhaust port 116b. The opening 131b is smaller in size than the opening 131a of the thermal insulation material 131 of the above embodiment. The size of the opening 131b in the X-axis direction is the same as the length of the top plate air intake port 116a and the top plate exhaust port 116b, and the length in the Y-axis direction is the same as the length from the edge of the top plate air intake port 116a in the negative Y-axis direction to the edge of the top plate exhaust port 116b in the positive Y-axis direction. As a result, the thermal insulation material 131A is not positioned opposite the top plate air intake port 116a and the top plate exhaust port 116b on the inner surface of the top plate 116, but is positioned opposite the air conditioner 200. The material and other configuration of the heat insulating material 131A are similar to the material and other configuration of the heat insulating material .

[0083] The remaining configuration of this modified example is the same as that of the above-described embodiment, and therefore description thereof will be omitted. This modified example can also achieve the same effects as those of the above-described embodiment. In particular, in this modified example, the insulating material 131A is also disposed on the inner surface of the top plate 116 at a position facing the air conditioning unit 200, thereby further improving the thermal insulation of the interior of the electrical panel 100. In this modified example, the insulating material 131A is also disposed on the inner surface of the top plate 116 so that air can pass through the top plate air intake port 116a and the top plate exhaust port 116b formed in the top plate 116, thereby preventing the insulating material 131A from interfering with the intake and exhaust of the air conditioning unit 200.

[0084] (Variation 2) In the above embodiment or variant 1, one opening 131a or 131b is formed in the heat insulating material 131 or 131A, but multiple openings may be formed. Fig. 7 is a cross-sectional view showing the configuration of the heat insulating material 131B arranged on the top plate 116 of the electrical panel 100 according to variant 2 of the present embodiment. Fig. 7 is a view corresponding to Fig. 5 or Fig. 6.

[0085] As shown in FIG. 7 , the thermal insulation material 130 of this modification includes a thermal insulation material 131B instead of the thermal insulation material 131 or 131A included in the thermal insulation material 130 of the above-described embodiment or modification 1. Two openings 131c and 131d are formed in the thermal insulation material 131B. Specifically, the opening 131c is formed in the thermal insulation material 131B at a position facing the top plate air intake port 116a, and the opening 131d is formed in the thermal insulation material 131B at a position facing the top plate air exhaust port 116b. The opening 131c has the same shape and size as the top plate air intake port 116a when viewed from the Z-axis direction. The opening 131d has the same shape and size as the top plate air exhaust port 116b when viewed from the Z-axis direction. As a result, the thermal insulation material 131B is not positioned opposite the top plate air intake port 116a or the top plate exhaust port 116b on the inner surface of the top plate 116, but is positioned opposite the air conditioner 200. The material and other configuration of the heat insulating material 131B are similar to the material and other configuration of the heat insulating material 130.

[0086] The remaining configuration of this modified example is the same as that of the above-described embodiment, and therefore description thereof will be omitted. This modified example also achieves the same effects as those of the above-described embodiment. In particular, in this modified example, the insulating material 131B is formed with an opening 131c having the same shape and size as the top plate air intake 116a and an opening 131d having the same shape and size as the top plate air exhaust 116b, thereby further improving the thermal insulation of the interior of the electrical panel 100. In this modified example, the insulating material 131B is also disposed on the inner surface of the top plate 116 so that air can pass through the top plate air intake 116a and the top plate air exhaust 116b formed in the top plate 116. This prevents the insulating material 131B from interfering with the intake and exhaust of the air conditioner 200.

[0087] (Variation 3) In the above embodiment and variants 1 and 2, no heat insulating material is arranged in a position facing top plate air intake 116a and top plate exhaust 116b, but heat insulating material may be arranged in a position facing top plate air intake 116a or top plate exhaust 116b. Fig. 8 is a cross-sectional view showing the configuration of heat insulating material 131C arranged on top plate 116 of electrical panel 100 according to variant 3 of the present embodiment. Fig. 8 is a view corresponding to Fig. 5, Fig. 6 or Fig. 7.

[0088] As shown in FIG. 8, the heat insulating material 130 of this modification includes a heat insulating material 131C instead of the heat insulating material 131, 131A, or 131B included in the heat insulating material 130 of the above-described embodiment, modification 1, or modification 2. The heat insulating material 131C has two openings 131c and 131d formed therein, similar to those of modification 2. The heat insulating material 131C includes a mesh-shaped heat insulating material 131e within opening 131c and a mesh-shaped heat insulating material 131f within opening 131d. As described above, the heat insulating material 131C includes the heat insulating materials 131e and 131f at positions facing the top plate air intake port 116a and the top plate exhaust port 116b on the inner surface of the top plate 116, but is configured to allow air to pass through the top plate air intake port 116a and the top plate exhaust port 116b. The mesh size (the number of openings formed in the mesh) of the heat insulating materials 131e and 131f is not particularly limited. The heat insulating materials 131e and 131f may not be mesh-shaped but may have one or more small holes formed therein. The material and other configurations of the heat insulating materials 131C (131e and 131f) are similar to the material and other configurations of the heat insulating material 130.

[0089] The remaining configuration of this modified example is the same as that of the above-described embodiment, and therefore description thereof will be omitted. This modified example also achieves the same effects as those of the above-described embodiment. In particular, in this modified example, the insulating material 131C includes mesh insulating materials 131e and 131f within the openings 131c and 131d, thereby further improving the thermal insulation of the interior of the electrical panel 100. In this modified example, the insulating material 131C is also disposed on the inner surface of the top plate 116 so that air can pass through the top plate air intake port 116a and the top plate exhaust port 116b formed in the top plate 116. This prevents the insulating material 131C from interfering with the intake and exhaust of the air conditioner 200.

[0090] (Variation 4) In the above embodiment, openings 131a are formed in heat insulating material 131, but a configuration in which no openings are formed is also possible. Fig. 9 is a cross-sectional view showing the configuration of heat insulating material 131D arranged on top plate 116 of electrical panel 100 according to modification 4 of the present embodiment. Fig. 9 is a view corresponding to Fig. 5.

[0091] As shown in FIG. 9 , the thermal insulation 130 in this modification includes a thermal insulation 131D instead of the thermal insulation 131 included in the thermal insulation 130 in the above embodiment. The thermal insulation 131D includes two thermal insulations, a thermal insulation 131g and a thermal insulation 131h. That is, the thermal insulation 131D does not have an opening. The thermal insulation 131g is a flat, rectangular thermal insulation material that is disposed on the inner surface of the top plate 116 in the positive direction of the X axis relative to the top plate air intake port 116a and the top plate exhaust port 116b. The thermal insulation 131h is a flat, rectangular thermal insulation material that is disposed on the inner surface of the top plate 116 in the negative direction of the X axis relative to the top plate air intake port 116a and the top plate exhaust port 116b. In this modification, the thermal insulation 131g and the thermal insulation 131h are not disposed in positions facing the air conditioner 200 on the inner surface of the top plate 116, but they may be disposed in positions facing the air conditioner 200. The material and other configurations of the heat insulating material 131D (131g and 131h) are similar to the material and other configurations of the heat insulating material 130.

[0092] The other configurations of this modified example are the same as those of the above embodiment, and therefore will not be described. This modified example can also achieve the same effects as those of the above embodiment. In particular, this modified example does not require the formation of openings in the heat insulating material 131D, making it easy to manufacture the heat insulating material 131D.

[0093] (Other variations) In the above embodiment, the electrical panel 100 accommodates the energy storage element 122, but may accommodate a power converter, or may accommodate both the energy storage element 122 and the power converter. The electrical panel 300 accommodates the power converter, but may accommodate the energy storage element 122, or may accommodate both the energy storage element 122 and the power converter. In other words, it is sufficient for the electrical panel 100 or 300 to accommodate at least one of the energy storage element 122 and the power converter. Any of the multiple electrical panels 100 and 300 provided in the energy storage facility 1 may be configured not to accommodate both the energy storage element 122 and the power converter.

[0094] In the above embodiment, the insulating material 130 is arranged on all inner surfaces of the two side panels 111, 112, the front panel 113, the rear panel 114, and the bottom panel 115 of the housing 110 of the electrical panel 100, but it is sufficient if it is arranged on the inner surface of at least one of these.

[0095] In the above embodiment, the air conditioner 200 directs the air flowing downward from the top panel exhaust port 116b of the electrical panel 100 to a first object, and directs the air flowing upward toward the top panel intake port 116a to a second object, but this is not limited to this. The air conditioner 200 may direct the air flowing downward from the top panel exhaust port 116b to a second object, and direct the air flowing upward toward the top panel intake port 116a to a first object.

[0096] In the above embodiment, a heat insulating material is arranged on the inner surface of the wall of the air conditioner 200 that faces the top panel 116, but the heat insulating material does not have to be arranged on the inner surface of the wall.

[0097] In the above embodiment, no openings are formed in the first shelf 117 of the electrical panel 100, and the components below the first shelf 117 are not cooled or heated, but this is not limiting. Openings may also be formed in the first shelf 117, similar to the second shelf 118, so that the components below the first shelf 117 can also be cooled or heated.

[0098] In the above embodiment, all of the multiple electrical panels 100 included in the power storage facility 1 have the above-described configuration, but any one of the electrical panels 100 may have a configuration different from the above-described configuration. The electrical panel 300 may have a configuration different from the above-described configuration. Similarly, any one of the multiple air conditioners 200 included in the power storage facility 1 may have a configuration different from the above-described configuration, or any one of the multiple air conditioners 400 may have a configuration different from the above-described configuration.

[0099] Any combination of the above-described embodiments and modifications is also included within the scope of the present invention. In the above-described various modifications, those applicable to the electrical panel 100 are also applicable to the electrical panel 300. Those applicable to the air conditioner 200 are also applicable to the air conditioner 400. [Industrial Applicability]

[0100] The present invention can be applied to an electricity storage facility equipped with an electrical panel. [Explanation of symbols]

[0101] 1. Energy storage facilities 10, 100, 101, 102, 300 Electrical Panel 11, 116 Top plate 20, 200, 201, 400 Air conditioner 30 First member 40 First Cover 110 Case 111, 112 Side panels 111a, 112a, 112b through holes 113 Front panel 114 Rear plate 115 Bottom plate 116a Top panel first vent (top panel intake) 116b Top plate second ventilation hole (top plate exhaust hole) 117 First shelf 118 Second shelf 118a, 118b opening 120 Power storage device 121 Exterior body 122 Energy storage element 123 PCB unit 130, 131, 131A, 131B, 131C, 131D, 131e, 131f, 131g, 131h, 132, 133, 134, 135 Insulation 131a, 131b, 131c, 131d aperture 210 Air conditioning unit body 220, 420 external intake 230, 430 External exhaust port

Claims

1. an electrical panel that houses at least one of the storage element and the power converter; an air conditioning device disposed above a top plate of the electrical panel and configured to circulate air in an internal space of the electrical panel through an air intake port and an air exhaust port formed in the top plate; a heat insulating material disposed on the inner surface of the top plate so as to allow air to pass through the intake port and the exhaust port. Energy storage equipment.

2. The heat insulating material is disposed at a position on the inner surface of the top plate that is different from a position facing the air conditioning device. The power storage facility according to claim 1.

3. The heat insulating material has openings formed at positions facing the intake port and the exhaust port. The power storage facility according to claim 1 or 2.

4. The heat insulating material is further disposed on the inner surface of at least one of the two side panels, the front panel, the rear panel, and the bottom panel of the electrical panel. The power storage facility according to claim 1 or 2.

5. The air conditioning device directing the air flowing downward from the exhaust port toward a first object that is at least one of the energy storage element and the power converter; The air flowing upward toward the intake port is directed to a second object different from the first object. The power storage facility according to claim 1 or 2.

6. The electrical panel is a storage panel that houses the storage elements; a power conversion panel that houses the power converter, The storage panel and the power conversion panel are each provided with the air conditioning device and the heat insulating material. The power storage facility according to claim 1 or 2.

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