Supporting member, power storage system, and building with power storage system

Abstract

To stably secure a power storage element unit at the designated location.SOLUTION: A supporting member 10 is configured that the supporting member 10 is for installing a power storage element unit 50 at installation location P, which includes floor section 2. The supporting member 10 comprises a bottom plate section 11 arranged on the floor section 2 and attached to the floor section 2, and a side plate section 16 extending upward from the bottom plate section 11. The side plate section 16 is attached to the power storage element unit 50.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a support member, an electricity storage facility, and a building with an electricity storage facility. [Background technology]

[0002] An energy storage element unit is known, as disclosed in Patent Document 1. The energy storage element unit is attached to a wall. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2021-150274 Summary of the Invention [Problem to be solved by the invention]

[0004] Depending on the installation location of the energy storage element unit, it may be difficult to ensure sufficient strength in the wall portion, making it impossible to stably install the energy storage element unit at the installation location. An object of the present disclosure is to stably install the energy storage element unit at the installation location. [Means for solving the problem]

[0005] A support member according to one embodiment of the present invention comprises: A support member for installing an energy storage element unit in an installation location including a floor, a bottom plate portion disposed on the floor portion and attached to the floor portion; a side plate portion rising from the bottom plate portion, The side plate portion is attached to the energy storage element unit. [Effects of the Invention]

[0006] According to the present invention, the energy storage element unit can be stably installed at the installation location. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a diagram for explaining one embodiment, and is a perspective view of a building equipped with an electricity storage facility. [Figure 2] FIG. 2 is a perspective view mainly showing the housing body and the support member in the power storage facility of FIG. 1 when the housing is installed in a first position. [Figure 3] FIG. 3 is a perspective view mainly showing the housing and the support member in the power storage facility of FIG. 1 when the housing is installed in the second position. [Figure 4] FIG. 4 is a diagram showing the fourth side wall portion and the support member when the housing is installed in the first position. [Figure 5] FIG. 5 is a view showing the bottom plate portion of the support member. [Figure 6] FIG. 6 is a view showing the side plate portion of the support member. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. [Figure 8] FIG. 8 is a view showing the second surface of the bottom plate portion. [Figure 9] FIG. 9 is a perspective view partially showing a decorative panel attached to a housing installed in a first position. [Figure 10] FIG. 10 is a perspective view partially showing a decorative panel attached to a housing installed in a first position. DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment of the present invention relates to the following [1] to

[13] .

[0009] [1] A support member for installing an energy storage element unit in an installation location including a floor, a bottom plate portion disposed on the floor portion and attached to the floor portion; a side plate portion rising from the bottom plate portion, The side plate portion is a support member attached to the energy storage element unit.

[0010] [2] The support member of [1], wherein the bottom plate portion includes a first surface and a second surface located below the first surface, and is connected to the energy storage element unit at the first surface and connected to the floor portion at the second surface.

[0011] [3] The bottom plate portion includes a first surface and a second surface, the first surface is connected to the energy storage element unit, and the second surface is connected to the floor portion; The support member of [1] or [2], wherein the area of ​​the second surface in bottom view is smaller than the area of ​​the bottom plate portion in bottom view.

[0012] [4] The support member according to any one of [1] to [3], wherein at least one of the bottom plate portion and the side plate portion is provided with a wiring passage hole through which wiring electrically connected to the energy storage element unit can pass.

[0013] [5] The energy storage element unit includes a housing that houses an energy storage element module, and a decorative panel that is attached to the housing and covers a portion of the housing, The support member according to any one of [1] to [4], wherein the support member includes a first portion that supports the housing and a second portion that supports the decorative panel.

[0014] [6] The support member according to [5], wherein the second part is detachable from the first part.

[0015] [7] The support member according to any one of [1] to [6], further comprising a connecting member that connects the side edge of the bottom plate portion to the side edge of the side plate portion.

[0016] [8] The bottom plate portion is a support member according to any one of [1] to [7], which supports the energy storage element unit from below.

[0017] [9] The installation location includes a wall portion rising from the floor portion, The side plate portion is a support member according to any one of [1] to [8], which is arranged between the wall portion and the energy storage element unit.

[0018]

[10] A support member according to any one of [1] to [9]; an energy storage element unit attached to the support member.

[0019]

[11] The energy storage element unit includes a housing that houses an energy storage element module, The power storage device according to

[10] , wherein the housing is attached to the side plate portion.

[0020]

[12] The housing includes a bottom wall portion and a plurality of side wall portions rising from the bottom wall portion, the housing is attached to the side plate portion at at least one of the side wall portions, the bottom wall portion includes an observation area that can be observed from above when the energy storage element module is housed in the housing, The observation area is connected to the at least one side wall portion.

[10] or

[11]

[0021]

[13] Any of the storage facilities described in

[10] to

[12] ; A building including the installation location.

[0022] An embodiment will be described below with reference to the drawings. In the drawings, the scale and dimensional ratios may be changed from the actual size as appropriate for ease of illustration and understanding. Components shown in one drawing may be omitted in another drawing.

[0023] Directions common to the drawings are indicated by arrows with common symbols. In each direction, the tip of the arrow is the first side. In each direction, the side opposite the first side, i.e., the base of the arrow, is the second side. An arrow pointing from the back to the front of the paper in a direction perpendicular to the paper surface is indicated by a symbol with a dot in a circle, as shown in Figure 3. An arrow pointing from the front to the back of the paper in a direction perpendicular to the paper surface is indicated by a symbol with an X in a circle, as shown in Figure 8.

[0024] 1 to 10 are diagrams illustrating one embodiment. Fig. 1 is a perspective view of a building 100 with a power storage facility. The illustrated building 100 with a power storage facility includes a power storage facility 90 and a building 1. The power storage facility 90 includes a support member 10 and a power storage element unit 50 attached to the support member 10.

[0025] The energy storage element unit 50 shown in Fig. 1 is installed at an installation location P in a building 1. The illustrated installation location P includes a floor 2 and a wall 3 rising from the floor 2. The illustrated floor 2 and wall 3 are connected to each other at a connection portion 4.

[0026] The support member 10 shown in Figures 1 to 7 is attached to a floor 2 of a building 1. The energy storage facility 90 shown in Figure 1 includes a first attachment member 41 that attaches the support member 10 to the floor 2, and a second attachment member 42 that attaches the energy storage element unit 50 to the support member 10. The first attachment member 41 is shown in Figures 2 and 3, etc. The second attachment member 42 is shown in Figures 4 and 7.

[0027] 1 is used as a secondary battery unit capable of storing and discharging electricity. The illustrated energy storage element unit 50 functions as a secondary battery unit for a building 1. Examples of the building 1 in which the energy storage element unit 50 is installed include detached houses, apartment buildings, condominiums, and other residential buildings, as well as public facilities such as offices and buildings.

[0028] 1 to 7 is a plane perpendicular to the first direction D1 when observed macroscopically. In other words, the first direction D1 shown in FIGS. 1 to 10 is a direction perpendicular to the floor 2 when observed macroscopically.

[0029] In the following description and in Figures 1 to 10, "up" refers to the first side in the first direction D1. "Up" refers to the direction away from the floor 2 in the first direction D1. "Down" refers to the second side in the first direction D1. "Down" refers to the direction approaching the floor 2 in the first direction D1. "Side" refers to a direction non-parallel to the first direction D1. "Up", "down", and "side" used with respect to the energy storage element unit 50 refer to the energy storage element unit 50 in a state where it is placed on the floor 2. "Up", "down", and "side" used with respect to the support member 10 refer to the support member 10 in a state where it is placed on the floor 2.

[0030] 1 to 7 form a plane perpendicular to the second direction D2 when observed macroscopically. The second direction D2 is a direction perpendicular to the first direction D1. Therefore, the illustrated second direction D2 is a direction perpendicular to the wall 3 when observed macroscopically, and is also a direction perpendicular to the first direction D1.

[0031] The support member 10 shown in FIGS. 1 to 7 includes a bottom plate portion 11 and side plate portions 16 that stand up from the bottom plate portion 11. The illustrated side plate portions 16 extend upward from the bottom plate portion 11. The bottom plate portion 11 shown in FIGS. 2 and 3 is attached to the floor portion 2 by a first attachment member 41. The bottom plate portion 11 shown in FIG. 1 is located between the floor portion 2 and the energy storage element unit 50 in the first direction D1. By attaching the bottom plate portion 11 to the floor portion 2, the illustrated support member 10 is restricted from moving in the first direction D1 and in directions non-parallel to the first direction D1.

[0032] The bottom plate portion 11 shown in FIG. 1 supports the energy storage element unit 50 from below. The bottom plate portion 11 restricts downward movement of the energy storage element unit 50. The bottom plate portion 11 may contact the energy storage element unit 50 from below. The bottom plate portion 11 does not have to contact the energy storage element unit 50 from below. When attached to the floor portion 2, the bottom plate portion 11 may contact the floor portion 2 from above. When attached to the floor portion 2, the bottom plate portion 11 does not have to contact the floor portion 2 from above.

[0033] The side plate portion 16 shown in FIG. 1 is attached to the energy storage element unit 50. The side plate portion 16 supports the energy storage element unit 50 from the side. The illustrated side plate portion 16 supports the energy storage element unit 50 from the second side in the second direction D2. The side plate portion 16 restricts movement of the energy storage element unit 50 toward the second side in the second direction D2. The side plate portion 16 may contact the energy storage element unit 50 from the side. The side plate portion 16 does not have to contact the energy storage element unit 50 from the side.

[0034] 1, the side plate portion 16 may be disposed between the energy storage element unit 50 and the wall portion 3. The side plate portion 16 may be in contact with the wall portion 3. The side plate portion 16 may not be in contact with the wall portion 3. A gap may be formed between the side plate portion 16 and the wall portion 3.

[0035] The bottom plate portion 11 shown in FIGS. 2 to 5 and 7 includes a first contact surface 11X. The energy storage element unit 50 comes into contact with the first contact surface 11X from above. The illustrated first contact surface 11X extends in a direction perpendicular to the first direction D1. The illustrated bottom plate portion 11 supports the energy storage element unit 50 from below, with the first contact surface 11X in contact with the energy storage element unit 50.

[0036] The side plate portion 16 shown in Figures 2, 3, 6, and 7 includes a second contact surface 16X. The energy storage element unit 50 comes into contact with the second contact surface 16X from the side. The illustrated side plate portion 16 supports the energy storage element unit 50 from the side while being in contact with the energy storage element unit 50 from the second contact surface 16X. The illustrated second contact surface 16X extends in a direction perpendicular to the second direction D2.

[0037] The energy storage element unit 50 shown in Fig. 1 includes an energy storage element module 51 and a housing 60 that houses the energy storage element module 51. The housing 60 may house a plurality of energy storage element modules 51, as shown in Fig. 1.

[0038] The energy storage element module 51 shown in FIG. 1 has the function of accommodating a plurality of cells (not shown). A cell is the smallest unit that can be used as an energy storage element. Various types of cells can be used. The cells may be, for example, lithium-ion secondary batteries.

[0039] The energy storage element module 51 may include module wiring 51L. In the example shown in FIG. 1 , a plurality of module wirings 51L extend from each of the plurality of energy storage element modules 51. The plurality of module wirings 51L are housed in a housing 60. The module wirings 51L are connected to a control module 53, which will be described later. The module wirings 51L are electrically connected to the wiring 6 of the building 1 via the control module 53. In the energy storage facility 90 shown in FIG. 1 , the module wirings 51L are electrically connected to the wiring 6 of the building 1, thereby electrically connecting the energy storage element module 51 and the wiring 6 of the building 1.

[0040] In the illustrated building 1, the wiring 6 extends from the floor 2. Unlike the illustrated example, the wiring 6 may extend from the wall 3. When the energy storage element module 51 and the wiring 6 are electrically connected, the energy storage element unit 50 can function as a power source for electrical devices (not shown) installed in the building 1.

[0041] The housing 60 may house other devices or components than the energy storage element module 51. In the illustrated energy storage element unit 50, the housing 60 houses a control module 53 in addition to the energy storage element module 51. In FIG. 1, the energy storage element module 51 and the control module 53 housed in the housing 60 can be observed.

[0042] 1, the control module 53 is stacked on the energy storage element module 51. The illustrated control module 53 is electrically connected to each of the multiple energy storage element modules 51 via multiple module wirings 51L. The control module 53 is electrically connected to the wiring 6 of the building 1.

[0043] The control module 53 has one or more functions of controlling the storage and discharge of electricity of the multiple energy storage element modules 51, monitoring the storage state (e.g., the amount of stored electricity) of the energy storage element modules 51, and monitoring the presence or absence of abnormalities in the energy storage element modules 51. The control module 53 can transmit information relating to the storage state and the presence or absence of abnormalities of the energy storage element modules 51 to a control device (not shown) provided outside the energy storage element unit 50. The control module 53 may include a switch capable of changing the state of electrical connection with the energy storage element modules 51 and the state of electrical connection with the control device.

[0044] The housing 60 shown in FIGS. 1 to 3 is disposed on the bottom plate 11 of the support member 10. The housing 60 disposed on the bottom plate 11 opens upward as shown in FIG. 1. The illustrated housing 60 includes a bottom wall 61 and a plurality of side wall portions 62 rising from the bottom wall portion 61. In the housing 60 disposed on the bottom plate portion 11, the side wall portions 62 extend from the bottom wall portion 61 in a first direction D1.

[0045] 1 and 3, the housing 60 may include a lid 66 that covers the opening. The illustrated lid 66 is a panel-like member. The lid 66 covers the opening of the housing 60 from above. The lid 66 may be attached to the side wall 62 by, for example, being screwed.

[0046] The housing 60 may be installed at a first position P1 shown in Fig. 2 or at a second position P2 shown in Fig. 3. In the illustrated building 1, the housing 60 installed at the first position P1 is located on a second side in the third direction D3 with respect to the wiring 6 of the building 1. The housing 60 installed at the second position P2 is located on a first side in the third direction D3 with respect to the wiring 6 of the building 1. The housing 60 may be switched between the first position P1 and the second position P2 by rotating about a rotation axis parallel to the first direction D1.

[0047] The third direction D3 shown in FIGS. 1 to 10 is a direction perpendicular to both the first direction D1 and the second direction D2.

[0048] The bottom wall portion 61 supports the energy storage element module 51 from below. The illustrated housing 60 contacts the bottom plate portion 11 of the support member 10 from the bottom wall portion 61. The bottom wall portion 61 restricts downward movement of the energy storage element module 51 housed in the housing 60.

[0049] The housing 60 shown in FIGS. 1 to 3 includes a plurality of side walls 62, namely, a first side wall 62a, a second side wall 62b, a third side wall 62c, and a fourth side wall 62d. In the housing 60 disposed on the bottom plate 11, the first side wall 62a and the second side wall 62b extend from the bottom wall 61 in the first direction D1 along the second direction D2. The first side wall 62a and the second side wall 62b are spaced apart from each other in the third direction D3. In the housing 60 disposed on the bottom plate 11, the third side wall 62c and the fourth side wall 62d extend from the bottom wall 61 in the first direction D1 along the third direction D3. The third side wall 62c and the fourth side wall 62d are spaced apart from each other in the second direction D2.

[0050] 1 restrict movement of the energy storage element module 51 housed in the housing 60 in the third direction D3. The illustrated third side wall 62c and fourth side wall 62d restrict movement of the energy storage element module 51 housed in the housing 60 in the second direction D2.

[0051] The housing 60 shown in FIGS. 1 to 3 is attached to the side plate 16 at at least one of the multiple side wall portions 62. The housing 60 shown in FIG. 1 is attached to the side plate 16 at the fourth side wall portion 62d among the first to fourth side wall portions 62a to 62d. The fourth side wall portion 62d is provided with multiple through holes 60H through which the second mounting member 42 can pass. When the housing 60 is placed on the bottom plate 11 at the first position P1, as shown in FIGS. 4 and 7, the housing 60 is attached to the side plate 16 by the second mounting member 42 passing through the through holes 60H provided in the fourth side wall portion 62d. Note that FIG. 7 omits other components of the housing 60 than the fourth side wall portion 62d.

[0052] 1 to 3, a plurality of through holes 60H are also provided in the third side wall portion 62c. When the illustrated housing 60 is placed on the bottom plate portion 11 at the second position P2, it is attached to the side plate portion 16 by the second attachment member 42 that passes through the through holes 60H provided in the third side wall portion 62c. Therefore, the illustrated housing 60 can be attached to the side plate portion 16 at either the first position P1 or the second position P2.

[0053] Note that various members capable of attaching the housing 60 to the side plate portion 16 can be used as the second attachment member 42. The second attachment member 42 may be a fastening member, as shown in FIG. 7. The fastening member has a portion with a thread formed on the side surface. The fastening member shown is a bolt. FIG. 7 shows the fourth side wall portion 62d attached to the side plate portion 16 by the second attachment member 42 that has passed through the through hole 60H.

[0054] FIG. 4 is a view of the housing 60 housing the energy storage element module 51, viewed from the first side in the first direction D1. The illustrated bottom wall 61 includes an observation area 65 that can be observed in the state shown in FIG. 4. The bottom wall 61 is connected to at least one of the side wall portions 62 in the observation area 65. In particular, the illustrated bottom wall 61 is connected to the fourth side wall portion 62d in the observation area 65. The portion where the observation area 65 of the bottom wall portion 61 connects to the fourth side wall portion 62d extends in the third direction D3. In the illustrated housing 60, a gap is formed between the energy storage element module 51 and the fourth side wall portion 62d. This gap can be used as a working space for attaching the second mounting member 42 from inside the housing 60 when attaching the housing 60 housing the energy storage element module 51 to the side plate portion 16 at the first position P1.

[0055] 4, the bottom wall 61 is also connected to the third side wall 62c in the observation area 65. The portion where the observation area 65 of the bottom wall 61 and the third side wall 62c are connected extends in the third direction D3. In the illustrated housing 60, a gap is formed between the energy storage element module 51 and the third side wall 62c. This gap can be used as a working space for attaching the second mounting member 42 from inside the housing 60 when the housing 60 accommodating the energy storage element module 51 is attached to the side plate 16 at the second position P2.

[0056] As shown in FIGS. 1 to 3, the side wall 62 may be provided with a wire passing hole 62H through which the wires 6 of the building 1 connected to the energy storage element module 51 can pass. The first side wall 62a shown in FIGS. 1 to 3 is provided with the wire passing hole 62H. The wire passing hole 62H has a circular shape in side view (when observed from the third direction D3). The first side wall 62a may be provided with a plurality of wire passing holes 62H. In the illustrated example, two wire passing holes 62H are provided with an interval in the second direction D2. As shown in FIG. 3, grommets 63 may be provided around the wire passing hole 62H to protect the wires 6 passing through the wire passing hole 62H.

[0057] The first side wall portion 62a shown in FIGS. 2 to 4 includes an extension portion 64 that extends in a direction away from the storage space of the housing 60 when observed from a first side in the first direction D1. When the housing 60 is in the first position P1, the extension portion 64 extends along the second direction D2 to a first side in the third direction D3 as shown in FIGS. 2 and 9. When the housing 60 is in the second position P2, the extension portion 64 extends along the second direction D2 to a second side in the third direction D3 as shown in FIGS. 3 and 10. The extension portion 64 may be formed integrally with the side wall portion 62 in which the wire passing hole 62H is provided. Alternatively, the extension portion 64 may be formed separately from the side wall portion 62 in which the wire passing hole 62H is provided and attached to the side wall portion 62.

[0058] 9 and 10, the extension 64 includes a recess 64R that opens upward. Two recesses 64R are shown, spaced apart in the second direction D2. The recesses 64R can accommodate a protrusion provided on an upper panel 71 of a decorative panel 70, which will be described later.

[0059] 1, the energy storage element unit 50 may include a decorative panel 70 that covers a portion of the housing 60. The illustrated decorative panel 70 covers a portion of the side wall portion 62 of the housing 60. However, the energy storage element unit 50 does not necessarily have to include the decorative panel 70.

[0060] 1 includes a top panel 71, a first side panel 72 connected to the top panel 71, and a second side panel 73 connected to the top panel 71 at a position different from the first side panel 72. As shown in FIG. 1, a decorative panel storage space 70S is formed by the top panel 71, the first side panel 72, the second side panel 73, and the side wall portion 62 covered by the decorative panel 70.

[0061] The decorative panel 70 accommodates the wiring 6 in the decorative panel accommodation space 70S. As a result, the decorative panel 70 conceals the wiring 6 of the building 1. The decorative panel 70 may be omitted from the energy storage element unit 50. Note that the first side panel 72 and the second side panel 73 are omitted in FIGS. 9 and 10 .

[0062] 1, the decorative panel 70 is attached to the housing 60 so as to cover the first side wall portion 62a in which the wire passage hole 62H is provided. The decorative panel 70 covers the first side wall portion 62a from a first side in the third direction D3 with respect to the housing 60 at the first position P1. The decorative panel 70 may cover the first side wall portion 62a from a second side in the third direction D3 with respect to the housing 60 at the second position P2.

[0063] 9 and 10, the upper panel 71 extends in the second direction D2 and the third direction D3. The upper panel 71 defines the decorative panel storage space 70S from above. The upper panel 71 may be made of, for example, resin or metal.

[0064] 9 and 10, the top panel 71 includes a plurality of downwardly protruding protrusions 74. In the illustrated example, the protrusions 74 include a first protrusion 74a provided on a first-side edge 71a of the top panel 71 in the first direction D1, and a second protrusion 74b provided on a second-side edge 71b of the top panel 71 in the third direction D3. Two first protrusions 74a and two second protrusions 74b are each provided at an interval in the second direction D2.

[0065] As shown in FIGS. 1 and 9 , the top panel 71 can be attached to the housing 60 from a first side in the third direction D3. When the housing 60 is in the first position P1, the top panel 71 is connected to the first side panel 72 at an edge 71a on the first side in the third direction D3. The top panel 71 is attached to the housing 60 at an edge 71b on the second side in the third direction D3. In the illustrated example, the first protrusion 74a of the top panel 71 is covered by the first side panel 72 from the first side in the third direction D3. The second protrusion 74b of the top panel 71 is housed in a recess 64R provided in the extension 64 of the housing 60.

[0066] As shown in FIG. 9 , the top panel 71 can also be attached to the housing 60 from the second side in the third direction D3. When the housing 60 is in the second position P2, the top panel 71 is attached to the housing 60 at an edge 71a on the first side in the third direction D3. The top panel 71 is connected to the first side panel 72 at an edge 71b on the second side in the third direction D3. In the illustrated example, the first protrusion 74a of the top panel 71 is accommodated in a recess 64R provided in the extension 64 of the housing 60. The second protrusion 74b of the top panel 71 may be covered by the first side panel 72 from the second side in the third direction D3.

[0067] By selecting the convex portion 74 to be accommodated in the recess 64R provided in the extension portion 64, the decorative panel 70 can cover the side wall portion 62 from a first side in the third direction D3, or can cover the side wall portion 62 from a second side in the third direction D3.

[0068] As shown in FIG. 1, the top panel 71 is connected to the second side panel 73 at an edge 71c on the first side in the second direction D2.

[0069] 1, the first side panel 72 is a plate-like member extending in the second direction D2 and the third direction D3. As shown in FIG. 1, the first side panel 72 may be attached to the top panel 71 from a first side in the third direction D3. The first side panel 72 may be attached to the top panel 71 from a second side in the third direction D3. As shown in FIG. 1, the first side panel 72 may be attached to the second side panel 73 from a second side in the second direction D2.

[0070] The first side panel 72 defines the decorative panel storage space 70S from either side in the third direction D3. As shown in FIG. 1, when the decorative panel 70 covers the side wall portion 62 from a first side in the third direction D3, the first side panel 72 defines the decorative panel storage space 70S from the first side in the third direction D3. On the other hand, when the decorative panel 70 covers the side wall portion 62 from a second side in the third direction D3, the first side panel 72 defines the decorative panel storage space 70S from the second side in the third direction D3. The first side panel 72 may be made of, for example, resin or metal.

[0071] In the example shown in FIG. 1 , the second side panel 73 is a plate-like member extending in the first direction D1 and the third direction D3. The second side panel 73 defines the decorative panel storage space 70S from a first side in the second direction D2. The second side panel 73 is connected to the top panel 71 at an edge of the first side in the first direction D1. The second side panel 73 is attached to the first side panel 72 at an edge of the first side in the third direction D3. The second side panel 73 defines the decorative panel storage space 70S from the first side in the second direction D2. The second side panel 73 may be made of, for example, resin or metal.

[0072] 1, the energy storage element unit 50 having the above configuration is supported by a support member 10 installed at an installation location P of a building 1. The illustrated support member 10 includes a bottom plate portion 11 and side plate portions 16 that rise from the bottom plate portion 11 in the X direction DX.

[0073] In the following description, the X direction DX, Y direction DY, and Z direction DZ are used to refer to the support member 10 and its components. The components of the support member 10 include a first support member 20 and a second support member 30, which will be described later. The Y direction DY is a direction perpendicular to the X direction DX. The Z direction DZ is a direction perpendicular to both the X direction DX and the Y direction DY.

[0074] The bottom plate portion 11 shown in Fig. 7 has a first surface 111 and a second surface 112 that are spaced apart from each other in the X direction DX. The first surface 111 and the second surface 112 are each flat surfaces that are perpendicular to the X direction DX. The bottom plate portion 11 may have a plurality of first surfaces 111, as shown in Figs. 2, 3, and 5. Note that, as shown in Figs. 1 to 8, when the support member 10 is placed on the floor portion 2, the X direction DX is parallel to the first direction D1.

[0075] When the energy storage element unit 50 is attached to the support member 10, the bottom plate portion 11 connects to the energy storage element unit 50 at the first surface 111. When the bottom plate portion 11 connects to the energy storage element unit 50 at the first surface 111, the bottom plate portion 11 may come into contact with the energy storage element unit 50 at the first surface 111. However, the support member 10 may include an intermediate member (not shown) disposed between the bottom plate portion 11 and the energy storage element unit 50. The intermediate member may come into contact with the first surface 111 of the bottom plate portion 11 and also with the energy storage element unit 50. The bottom plate portion 11 may also be connected to the energy storage element unit 50 via the intermediate member at the first surface 111 without coming into contact with the energy storage element unit 50.

[0076] When the support member 10 is attached to the floor portion 2, the bottom plate portion 11 connects to the floor portion 2 at the second surface 112. When the bottom plate portion 11 connects to the floor portion 2 at the second surface 112, the bottom plate portion 11 may contact the floor portion 2 at the second surface 112. However, the support member 10 may include an intermediate member (not shown) disposed between the bottom plate portion 11 and the floor portion 2. The intermediate member may contact the second surface 112 of the bottom plate portion 11 and also contact the floor portion 2. The bottom plate portion 11 may be connected to the floor portion 2 via the intermediate member at the second surface 112 without contacting the floor portion 2.

[0077] The support member 10 shown in Fig. 5 is provided with a plurality of through holes 11H that penetrate the bottom plate portion 11 in the X direction DX. As shown in Figs. 2 and 3, each through hole 11H allows a first mounting member 41 to pass through. Each first mounting member 41 passes through one through hole 11H. The support member 10 shown in Figs. 2 and 3 is attached to the floor portion 2 by the first mounting members 41 that pass through the through holes 11H.

[0078] The side plate portion 16 shown in FIG. 7 has a first surface 161 and a second surface 162 that are spaced apart from each other in the Y direction DY. The first surface 161 and the second surface 162 are planes that are perpendicular to the Y direction DY. The side plate portion 16 is connected to the energy storage element unit 50 at the first surface 161. As shown in FIGS. 2, 3, and 6, the side plate portion 16 may have a plurality of first surfaces 161. Note that, as shown in FIGS. 1 to 3, when the support member 10 is placed on the floor portion 2, the Y direction DY is parallel to the second direction D2.

[0079] 7, the side plate portion 16 may be connected to the wall portion 3 of the building 1 at the second surface 162. The side plate portion 16 may include a portion disposed between the wall portion 3 and the energy storage element unit 50. The illustrated side plate portion 16 contacts the energy storage element unit 50 at the first surface 161 and contacts the wall portion 3 at the second surface 162.

[0080] As shown in FIGS. 2 and 3, the support member 10 may include a first portion 10a that supports the housing 60 and a second portion 10b that supports the decorative panel 70. The illustrated first portion 10a and second portion 10b are adjacent to each other in the Z direction DZ. As shown in FIG. 2, the second portion 10b may be located on a first side in the Z direction DZ relative to the first portion 10a. As shown in FIG. 3, the second portion 10b may be located on a second side in the Z direction DZ relative to the first portion 10a. The second portion 10b may be omitted from the support member 10. The second portion 10b may be omitted from a support member 10 that supports an energy storage element unit 50 that does not include a decorative panel 70.

[0081] The first portion 10a shown in Fig. 2 supports the housing 60 at a first position P1. The second portion 10b shown in Fig. 2 supports the decorative panel 70 attached to the housing 60 at the first position P1. The first portion 10a shown in Fig. 3 supports the housing 60 at a second position P2. The second portion 10b shown in Fig. 3 supports the decorative panel 70 attached to the housing 60 at the second position P2.

[0082] The first portion 10a and the second portion 10b may be different members. In the example shown in Figures 2 and 3, the support member 10 includes a first support member 20 and a second support member 30 as different members. The first support member 20 constitutes the first portion 10a of the support member 10. The second support member 30 constitutes the second portion 10b of the support member 10.

[0083] The second portion 10b may be detachable from the first portion 10a. In the support member 10 shown in FIGS. 2 to 6, the second support member 30 constituting the second portion 10b is detachable from the first support member 20 constituting the first portion 10a. The second support member 30 may be attached to the first support member 20 by being screwed to the first support member 20. The second support member 30 may be detached from the first support member 20 by removing the screws that screw the second support member 30 to the first support member 20.

[0084] As shown in FIG. 2, the second support member 30 may be disposed on a first side in the Z direction DZ relative to the first support member 20. The second support member 30 shown in FIG. 2 can support a decorative panel 70 attached to the housing 60 at a first position P1. As shown in FIG. 3, the second support member 30 may be disposed on a second side in the Z direction DZ relative to the first support member 20. The second support member 30 shown in FIG. 3 can support a decorative panel 70 attached to the housing 60 at a second position P2. Therefore, by making the second portion 10b detachable from the first portion 10a, the illustrated support member 10 can support the housing 60 and the decorative panel 70 when the housing 60 is at either the first position P1 or the second position P2.

[0085] The first support member 20 will be described below mainly with reference to Figures 5, 7, and 8. The illustrated first support member 20 includes a first bottom plate portion 21 and a first side plate portion 26 that rises from the first bottom plate portion 21 in the X direction DX.

[0086] The first bottom plate portion 21 shown in FIG. 7 has a first surface 211 and a second surface 212 that are spaced apart from each other in the X direction DX. The first surface 211 and the second surface 212 are planes that are perpendicular to the X direction DX. The first bottom plate portion 21 makes contact with the energy storage element unit 50 from below at the first surface 211. The illustrated first surface 211 constitutes the first contact surface 11X. The first bottom plate portion 21 makes contact with the floor 2 at the second surface 212. When the support member 10 is placed on the floor 2, the second surface 212 is located lower than the first surface 211. The first bottom plate portion 21 may have a plurality of first surfaces 211, as shown in FIGS. 2 to 5.

[0087] The first bottom plate portion 21 may be made up of a plurality of members. The first bottom plate portion 21 shown in Figures 5 and 7 is made up of a first member 22, a second member 23, and a third member 24. The first member 22, the second member 23, and the third member 24 may each be made by bending a metal plate. The second member 23 and the third member 24 may be fixed to the first member 22 by fixing members such as rivets.

[0088] 5 and 7 includes a portion that forms the second surface 212 of the first bottom plate portion 21. The first member 22 includes a protruding portion 22s that protrudes in the X direction DX from the portion that forms the second surface 212. The illustrated protruding portion 22s includes a portion that forms the first surface 211 of the first bottom plate portion 21.

[0089] 5, the first member 22 may include a plurality of protrusions 22s. The illustrated first member 22 includes, as the protrusions 22s, a first protrusion 22sa extending in the Z direction DZ and a second protrusion 22sb extending circumferentially in a direction non-parallel to the X direction DX. The illustrated first member 22 includes two first protrusions 22sa spaced apart from each other in the Y direction DY. The second protrusion 22sb includes a portion extending in the Y direction DY and a portion extending in the Z direction DZ.

[0090] 5, the first member 22 may include a bent portion 22f bent in the X direction DX from a portion that constitutes the second surface 212. In the illustrated first member 22, the bent portion 22f is located at an end portion on the first side in the Y direction DY of the first bottom plate portion 21 and at both ends in the Z direction DZ. As shown in FIGS. 5 and 7, the bent portion 22f may include a portion that constitutes the first surface 211 of the first bottom plate portion 21.

[0091] 5 and 7 is fixed to the first member 22. The second member 23 fixed to the first member 22 extends in the Z direction DZ. As shown in FIGS. 5 and 7, the second member 23 may include a portion that constitutes the first surface 211 of the first bottom plate portion 21.

[0092] The third member 24 shown in Figures 5 and 7 is fixed to the first member 22. The third member 24 fixed to the first member 22 extends in the Z direction DZ. The illustrated second member 23 and third member 24 are spaced apart from each other in the Y direction DY when fixed to the first member 22. As shown in Figures 5 and 7, the third member 24 may include a portion that constitutes the first surface 211 of the first bottom plate portion 21. The third member 24 may be connected to a third member 29 of the first side plate portion 26, which will be described later.

[0093] The first side plate portion 26 shown in FIG. 7 has a first surface 261 and a second surface 262 spaced apart from each other in the Y direction DY. The first surface 261 and the second surface 262 are planes perpendicular to the Y direction DY. The first side plate portion 26 contacts the energy storage element unit 50 at the first surface 261. The illustrated first side plate portion 26 contacts the housing 60 at the first surface 261. FIG. 7 shows a fourth side wall portion 62d that contacts the first side plate portion 26. Components of the housing 60 other than the fourth side wall portion 62d are omitted from FIG. 7. The first side plate portion 26 may include multiple first surfaces 261, as shown in FIG. 6. The illustrated second surface 262 forms a part of the second surface 162 described above.

[0094] The first side plate portion 26 may be composed of a plurality of members. The first side plate portion 26 shown in Figures 6 and 7 is composed of a first member 27, a second member 28, and a third member 29. The first member 27, the second member 28, and the third member 29 may each be made by bending a metal plate. The second member 28 and the third member 29 may be fixed to the first member 27 by fixing members such as rivets.

[0095] 6 and 7 is a plate-shaped member extending in the X direction DX and the Z direction DZ. The illustrated first member 27 includes a protruding portion 27s that protrudes toward the second side in the Y direction DY. The illustrated protruding portion 27s includes a portion that constitutes the second surface 262 of the first side plate portion 26.

[0096] 6 and 7, the first member 27 may include a plurality of protrusions 27s. The illustrated first member 27 includes, as the protrusions 27s, first protrusions 27sa extending in the Z direction DZ and second protrusions 27sb extending in the X direction DX. The first member 27 includes two first protrusions 27sa spaced apart from each other in the X direction DX and four second protrusions 27sb spaced apart from each other in the Z direction DZ.

[0097] 6 and 7, the first member 27 may include a bent portion 27f. In the illustrated first member 27, the bent portion 27f is located at the end on the first side in the X direction DX and at both end portions in the Z direction DZ. As shown in FIGS. 6 and 7, the bent portion 27f may include a portion that constitutes the first surface 261 of the first side plate portion 26.

[0098] 6 and 7 is fixed to the first member 27. The second member 28 fixed to the first member 27 extends in the X direction DX. The second member 28 may include a portion that constitutes the first surface 261 of the first side plate portion 26.

[0099] 6, the above-mentioned screw hole 10Y may be provided in the second member 28. The screw hole 10Y may be provided in the first member 27 or the third member 29.

[0100] 6 and 7 is fixed to the first member 27. The third member 29 fixed to the first member 27 extends in the Z direction DZ. As shown in FIG. 6, the third member 29 may include a portion that constitutes the first surface 261 of the first side plate portion 26. As shown in FIG. 7, the third member 29 may be connected to the third member 24.

[0101] The first support member 20 shown in FIGS. 2 and 3 includes a linear connecting member 15 that connects a side edge of the first bottom plate portion 21 and a side edge of the first side plate portion 26. In the illustrated example, the first support member 20 includes two connecting members 15 that are spaced apart from each other in the first direction D1. Of the two connecting members 15, one connecting member 15 connects a first-side edge of the first bottom plate portion 21 in the Z direction DZ to one edge of the first side plate portion 26 in the Z direction DZ. Of the two connecting members 15, the other connecting member 15 connects a second-side edge of the first bottom plate portion 21 in the Z direction DZ to a second-side edge of the first side plate portion 26 in the Z direction DZ. Connecting the side edges by the connecting member 15 can suppress rocking of the first side plate portion 26 relative to the first bottom plate portion 21 around the connection portion.

[0102] The second support member 30 will be described below mainly with reference to Figures 5 and 6. The illustrated second support member 30 includes a second bottom plate portion 31 and a second side plate portion 36 that rises from the second bottom plate portion 31 in the X direction DX.

[0103] The second bottom plate portion 31 shown in FIG. 5 has a first surface 311 and a second surface 312 that are spaced apart from each other in the X direction DX. The first surface 311 and the second surface 312 are planes that are perpendicular to the X direction DX. The first surface 311 of the second bottom plate portion 31 contacts the decorative panel 70 from below. The second surface 312 of the second bottom plate portion 31 contacts the floor portion 2. When the support member 10 is placed on the floor portion 2, the second surface 312 is located lower than the first surface 311. The second bottom plate portion 31 may have multiple first surfaces 311, as shown in FIG. 5.

[0104] The second bottom plate portion 31 may be made up of a plurality of members. The second bottom plate portion 31 shown in Fig. 5 is made up of a first member 32 and a second member 33. The first member 32 and the second member 33 may each be made by bending a metal plate. The second member 33 may be fixed to the first member 32 by a fixing member such as a rivet.

[0105] The first member 32 shown in Fig. 5 includes a portion that forms the second surface 312 of the second bottom plate portion 31. The first member 32 may include a bent portion 32f that is bent in the X direction DX from the portion that forms the second surface 312. In the illustrated first member 32, the bent portion 32f is located at an end of the second bottom plate portion 31 on a first side in the Y direction DY and at both ends in the Z direction DZ. As shown in Fig. 5, the bent portion 32f may include a portion that forms the first surface 311 of the second bottom plate portion 31.

[0106] The second member 33 shown in Fig. 5 is fixed to the first member 32. The second member 33 fixed to the first member 32 is located at the end on the second side in the Y direction DY. As shown in Figs. 5 and 7, the second member 33 may include a portion that constitutes the first surface 211 of the first bottom plate portion 21. The second member 33 may be connected to a third member 29 of the second side plate portion 36, which will be described later.

[0107] As shown in Fig. 5, the second bottom plate portion 31 may be provided with a wire passing hole 10H through which the wires 6 of the building 1 pass. In the illustrated example, the wire passing hole 10H is formed by hollowing out the central portion of the first member 32. By providing the wire passing hole 10H in the second bottom plate portion 31, the wires 6 exposed on the floor portion 2 can easily reach the decorative panel storage space 70S formed by the decorative panel 70 supported by the second support member 30. Therefore, the decorative panel 70 can be stably supported while the wires 6 can be easily concealed.

[0108] The second side plate portion 36 shown in FIG. 6 has a first surface 361 and a second surface 362 that are spaced apart from each other in the Y direction DY. The first surface 361 and the second surface 362 are planes that are perpendicular to the Y direction DY. The second side plate portion 36 contacts the decorative panel 70 at the first surface 361. As shown in FIG. 6, the second side plate portion 36 may include a plurality of first surfaces 361. The illustrated second surface 362 forms a portion of the second surface 162 described above.

[0109] The second side plate portion 36 may be made up of multiple members. The second side plate portion 36 shown in Fig. 6 is made up of a first member 37 and a second member 38. The first member 37 and the second member 38 may each be made by bending a metal plate. The second member 38 may be fixed to the first member 37 by a fixing member such as a rivet.

[0110] The first member 37 shown in FIG. 6 is a plate-shaped member extending in the X direction DX and the Z direction DZ. The illustrated first member 37 includes a protrusion 37s that protrudes toward the second side in the Y direction DY. The illustrated protrusion 37s includes a portion that constitutes the second surface 362 of the second side plate portion 36. As shown in FIG. 6, the first member 37 may include multiple protrusions 37s. The illustrated first member 37 includes two protrusions 37s that are spaced apart from each other in the X direction DX.

[0111] The first member 37 may include a bent portion 37f as shown in Fig. 6. In the illustrated first member 37, the bent portion 37f is located at the end on the first side in the X direction DX and at both end portions in the Z direction DZ. As shown in Fig. 6, the bent portion 37f may include a portion that constitutes the first surface 361 of the second side plate portion 36.

[0112] 6 is fixed to the first member 37. The third member 39 fixed to the first member 37 extends in the Z direction DZ. As shown in FIG. 6, the third member 29 may include a portion that constitutes the first surface 361 of the second side plate portion 36.

[0113] 8 is a view of the bottom plate portion 11 observed from the second side in the X direction DX. The hatched portion in the figure indicates the second surface 112 of the bottom plate portion 11. The second surface 112 shown in FIG. 8 includes the second surface 212 of the first bottom plate portion 21 and the second surface 312 of the second bottom plate portion 31. In the illustrated first bottom plate portion 21, the portion where the through hole 11H is formed and the portion where the protrusion 22s of the first member 22 is formed do not constitute the second surface 212. In the illustrated second bottom plate portion 31, the portion where the wire passing hole 10H is provided and the portion where the through hole 11H is provided do not constitute the second surface 312.

[0114] The area of ​​the second surface 112 of the bottom plate portion 11 shown in FIG. 8 is smaller than the area of ​​the bottom plate portion 11 when viewed from below, i.e., when viewed from the second side in the first direction D1. In FIG. 8, the area of ​​the second surface 112 of the bottom plate portion 11 when viewed from below is the area of ​​the portion indicated by diagonal lines in the figure. In FIG. 8, the area of ​​the bottom plate portion 11 when viewed from below is the area of ​​the outline of the bottom plate portion 11 in the figure. In the illustrated first support member 20, the area of ​​the second surface 212 when viewed from below is reduced by the protrusions 22s and through holes 11H formed in the first bottom plate portion 21. In the illustrated second support member 30, the area of ​​the second surface 312 when viewed from below is reduced by the wire passing holes 10H and through holes 11H formed in the second bottom plate portion 31.

[0115] The following describes the operation of the illustrated support member 10. Specifically, the following describes an example of a method for installing the electricity storage facility 90 including the illustrated support member 10.

[0116] First, the support member 10 and the components included in the energy storage element unit 50 are prepared. As the components included in the energy storage element unit 50, the energy storage element module 51 and the housing 60 are brought into the building 1 where the energy storage equipment 90 is to be installed. As the components included in the energy storage element unit 50, the control module 53 and the decorative panel 70 may also be brought. The components included in the energy storage element unit 50 may be brought into the building 1 separately. The support member 10 may be brought into the building 1 in an assembled state. As the support member 10, the first part 10a and the second part 10b configured as separate components may be brought into the installation location P of the building 1.

[0117] Next, the installation position of the housing 60 is determined. The installation position of the housing 60 may be determined based on the installation location P of the energy storage element unit 50 within the building 1. The installation position of the housing 60 may also be determined based on the position of the wiring 6 of the building 1 at the installation location P. Specifically, the position of the side wall portion 62 in which the wiring passing hole 62H is provided may be determined based on the position of the wiring 6 of the building 1 at the installation location P. As shown in FIG. 2, it may be determined that the housing 60 is installed at a first position P1 so that the first side wall portion 62a is located on a first side in the first direction D1 relative to the wiring 6. Alternatively, as shown in FIG. 3, it may be determined that the housing 60 is installed at a second position P2 so that the first side wall portion 62a is located on a second side in the first direction D1 relative to the wiring 6.

[0118] The installation position of the housing 60 may be changed between the first position P1 and the second position P2 by inverting (rotating 180 degrees) the housing 60 about an axis parallel to the third direction D3.

[0119] Next, based on the determined installation position of the housing 60, a position where the decorative panel 70 is to be attached to the housing 60 is determined. As shown in Fig. 1 and Fig. 7, it may be determined that the decorative panel 70 is to be attached to the housing 60 from a first side in the first direction D1. Alternatively, it may be determined that the decorative panel 70 is to be attached to the housing 60 from a second side in the first direction D1 by the method described above with reference to Fig. 9.

[0120] Next, the installation position of the first support member 20 is determined based on the determined installation position of the housing 60. The installation position of the second support member 30 is determined based on the position where the decorative panel 70 is attached to the housing 60. The position on the floor 2 where the first bottom plate portion 21 is attached is determined based on the installation position of the first support member 20. The position on the wall 3 where the second bottom plate portion 31 is attached may also be determined based on the installation position of the second support member 30.

[0121] Next, the first support member 20 is installed on the building 1. The first bottom plate portion 21 is placed at the determined position on the floor portion 2. The illustrated first bottom plate portion 21 contacts the floor portion 2 from the second surface 212. The first bottom plate portion 21 placed on the floor portion 2 is attached. The first bottom plate portion 21 is attached to the floor portion 2 by the first attachment member 41 that passes through the through hole 11H provided in the first bottom plate portion 21. By attaching the first bottom plate portion 21 to the floor portion 2, the first side plate portion 26 extends from the first bottom plate portion 21 in the first direction D1. By attaching the first bottom plate portion 21 to the floor portion 2, movement of the first side plate portion 26 relative to the floor portion 2 and the wall portion 3 is restricted.

[0122] Next, the second support member 30 is installed on the building 1. The second bottom plate portion 31 is placed at the determined position on the wall portion 3. The illustrated second bottom plate portion 31 contacts the floor portion 2 from the second surface 312. The second bottom plate portion 31 placed on the floor portion 2 is attached. The second bottom plate portion 31 is attached to the floor portion 2 by the first attachment member 41 that passes through the through hole 11H provided in the second bottom plate portion 31. By attaching the second bottom plate portion 31 to the floor portion 2, the second side plate portion 36 extends from the second bottom plate portion 31 in the first direction D1. By attaching the second bottom plate portion 31 to the floor portion 2, movement of the second side plate portion 36 relative to the floor portion 2 and the wall portion 3 is restricted.

[0123] In this manner, the first support member 20 and the second support member 30 are installed. By attaching the second side plate portion 36 to the wall portion 3, the second bottom plate portion 31 connected to the second side plate portion 36 is disposed on the floor portion 2. By attaching the second side plate portion 36 to the wall portion 3, relative movement of the second bottom plate portion 31 connected to the second side plate portion 36 with respect to the floor portion 2 is suppressed.

[0124] 2 and 3, the second bottom plate portion 31 includes a wire passing hole 10H through which the wires 6 electrically connected to the energy storage element unit 50 can pass. According to this specific example, the support member 10 can be placed in an area including the portion of the installation location P from which the wires 6 extend. The support member 10, which has a size sufficient for the size of the energy storage element unit 50, can stably support the energy storage element unit 50.

[0125] Next, the housing 60 is placed on the first support member 20. The housing 60 may be placed on the first support member 20 as follows.

[0126] The housing 60 is placed on the first support member 20. The housing 60 contacts the first bottom plate portion 21 from above. The housing 60 contacts the first side plate portion 26 from a first side in the second direction D2. As shown in FIGS. 2 and 3, the housing 60 contacts the first bottom plate portion 21 from the bottom wall portion 61. When the housing 60 is placed at the first position P1, the housing 60 contacts the first side plate portion 26 from the fourth side wall portion 62d, as shown in FIG. 2. When the housing 60 is placed at the second position P2, the housing 60 contacts the first side plate portion 26 from the third side wall portion 62c, as shown in FIG. 3.

[0127] The housing 60 placed on the first support member 20 is aligned with the first support member 20. The housing 60 may be aligned with the first side plate 26 in the first direction D1 and the second direction D2. The housing 60 may be aligned with the first side plate 26 by aligning the position of a through hole 60H provided in the side wall 62 with the position of a screw hole 10Y provided in the first side plate 26.

[0128] When the housing 60 is aligned with the first support member 20, the first side plate 26 contacts the side wall 62 of the housing 60 at the second contact surface 16X. When the housing 60 is placed at the first position P1 shown in FIG. 2 etc., the fourth side wall 62d contacts the second contact surface 16X. When the housing 60 is placed at the second position P2 shown in FIG. 3, the third side wall 62c contacts the second contact surface 16X. When the housing 60 is aligned with the first support member 20, the illustrated first bottom plate 21 may contact the bottom wall 61 of the housing 60 at the first contact surface 11X.

[0129] The aligned housing 60 is attached to the first support member 20. As shown in FIG. 4, the housing 60 is attached to the first support member 20 using second attachment members 42. The illustrated second attachment members 42 are fastening members. The second attachment members 42 pass through through holes 60H provided in the fourth side wall portion 62d and engage with screw holes 10Y provided in the first side plate portion 26. The housing 60 is attached to the first support member 20 by engaging the second attachment members 42 with the screw holes 10Y. The illustrated housing 60 is attached to the first support member 20 by six second attachment members 42.

[0130] Next, the energy storage element module 51 is housed in the housing 60. The energy storage element module 51 is housed in the housing 60 from above. A plurality of energy storage element modules 51 may be stacked in the housing 60 in the third direction D3. The energy storage element module 51 is housed between the first side wall portion 62a and the second side wall portion 62b in the first direction D1. The energy storage element module 51 is housed between the third side wall portion 62c and the fourth side wall portion 62d in the second direction D2.

[0131] The housing 60 may house components other than the energy storage element module 51. In the example shown in Fig. 1, in addition to the energy storage element module 51, a control module 53 is housed in the housing 60. The control module 53 may be further stacked on top of the energy storage element module 51.

[0132] Next, the wiring 6 of the building 1 is electrically connected to the energy storage element module 51. The wiring 6 passes through the wiring passing hole 62H provided in the first side wall portion 62a. When the housing 60 is installed at the first position P1, the wiring 6 passes through the wiring passing hole 62H from a first side in the first direction D1, as shown in FIG. 1. When the housing 60 is placed at the second position P2, the wiring 6 passes through the wiring passing hole 62H from a second side in the first direction D1.

[0133] The wiring 6 that passes through the wiring passing hole 62H is electrically connected to the control module 53. The energy storage element module 51 is electrically connected to the control module 53 via the module wiring 51L. In this way, the wiring 6 and the energy storage element module 51 are electrically connected via the control module 53.

[0134] Next, the decorative panel 70 is assembled. The decorative panel 70 may be assembled based on the position at which the decorative panel 70 is attached to the housing 60. When the housing 60 is installed at the first position P1, the decorative panel 70 may be assembled so that the first side panel 72 covers the first side wall portion 62a from a first side in the first direction D1. When the housing 60 is installed at the second position P2, the decorative panel 70 may be assembled so that the first side panel 72 covers the first side wall portion 62a from a second side in the first direction D1. The decorative panel 70 may be assembled at any time after the position at which the decorative panel 70 is attached to the housing 60 has been determined.

[0135] Next, the decorative panel 70 is attached to the housing 60. The decorative panel 70 may be attached to the housing 60 at the top panel 71 by the method described above with reference to FIGS.

[0136] 2 and 3, the support member 10 includes a first portion 10a that supports the housing 60 and a second portion 10b that supports the decorative panel 70. According to this specific example, the wiring 6 connected to the energy storage element unit 50 can be concealed by the decorative panel 70, and the housing 60 and the decorative panel 70 can be stably installed on the floor 2.

[0137] Next, the lid 66 is attached from above. The lid 66 may be fastened to the side wall 62 with screws.

[0138] In this manner, the power storage facility 90 including the support member 10 and the power storage element unit 50 attached to the support member 10 is installed in the building 1. The power storage facility 90 can also be removed from the building 1 by reversing the above-described procedure.

[0139] In the above-described method for installing the power storage facility 90, the power storage element module 51 is housed in the housing 60 attached to the support member 10 (first support member 20). The step of housing the power storage element module 51 in the housing 60 is performed after the step of attaching the housing 60 to the support member 10. This is not limiting, and the housing 60 housing the power storage element module 51 may be attached to the support member 10. Furthermore, the housing 60 may be removed from the support member 10 with the power storage element module 51 housed therein when performing maintenance and inspection of the power storage facility 90 or when removing the power storage facility 90.

[0140] The bottom wall 61 of the housing 60 shown in FIG. 4 includes an observation area 65 that can be observed from above when the energy storage element module 51 is housed in the housing 60. The observation area 65 is connected to the third side wall 62c and the fourth side wall 62d. As described above, the housing 60 is attached to the side plate 16 of the support member 10 at the fourth side wall 62d or the third side wall 62c. According to this energy storage equipment 90, even when the energy storage element module 51 is housed in the housing 60, the observation area 65 of the bottom wall 61 can provide space for attaching the housing 60 to the support member 10, including screw fastening. Furthermore, the observation area 65 of the bottom wall 61 can also provide space for removing the housing 60 from the support member 10, including removing the screws. The illustrated housing 60 can easily attach and remove the energy storage element module 51 to and from the support member 10, even when the energy storage element module 51 is housed in it. For example, the housing 60 that is brought into the building 1 with the energy storage element module 51 housed therein can also be easily attached to the support member 10 because the bottom wall portion 61 includes the observation area 65.

[0141] As disclosed in JP2021-150274A, conventional energy storage element units are attached to the wall of a building. However, there may be a problem in that the wall strength is not sufficient at the installation location of the energy storage element unit. If the wall strength is insufficient, the energy storage element unit cannot be installed stably. For example, it is expected that the energy storage element unit will come off the wall when vibrations such as an earthquake occur. It is also expected that the energy storage element unit that has come off the wall will fall and be damaged.

[0142] In contrast, the support member 10 according to the present embodiment includes a bottom plate 11 placed on the floor 2 and side plate portions 16 rising from the bottom plate portion 11. The bottom plate portion 11 is attached to the floor 2. The side plate portions 16 are attached to the energy storage element unit 50. According to this specific example, the energy storage element unit 50 is attached to the side plate portions 16 of the support member 10 instead of to the wall portion 3 of the building 1. By attaching the bottom plate portion 11 to the floor 2, the support member 10 and the second support member 30 attached to the support member 10 are fixed at the installation location P. Therefore, with the support member 10 shown in the figure, the energy storage element unit 50 can be stably installed even at the installation location P where the wall portion 3 cannot be sufficiently strong.

[0143] Furthermore, with the support member 10 according to this embodiment, the energy storage element unit 50 is attached to the side plate 16 instead of the wall 3, thereby maintaining the configuration of the energy storage element unit 50 being fixed laterally at the installation location P. With the energy storage facility 90 including the support member 10 and the energy storage element unit 50, it is possible to avoid significant changes in specifications from the energy storage element unit 50 attached to the wall 3. This makes it possible to expand the range in which the energy storage element unit 50 fixed laterally can be installed.

[0144] The bottom plate portion 11 shown in FIGS. 2, 3, and 7 includes a first surface 111 and a second surface 112. The bottom plate portion 11 is connected to the energy storage element unit 50 at the first surface 111. The bottom plate portion 11 is connected to the floor portion 2 at the second surface 112. A gap GP is formed between the first surface 111 and the second surface 112. The support member 10 including the illustrated bottom plate portion 11 can prevent heat from the floor portion 2 from being transferred from below to the energy storage element unit 50 by the gap GP between the first surface 111 and the second surface 112. Furthermore, the illustrated bottom plate portion 11 can release heat generated in the energy storage element unit 50 into the gap GP. Therefore, the support member 10 including the illustrated bottom plate portion 11 can prevent a temperature rise in the energy storage element unit 50 and prevent malfunctions of the energy storage element unit 50 caused by the temperature rise.

[0145] 8, the area of ​​the second surface 112 when viewed from below is smaller than the area of ​​the bottom plate portion 11 when viewed from below. By reducing the portion of the bottom plate portion 11 that is connected to the floor portion 2, the illustrated bottom plate portion 11 can stably place the support member 10 and the energy storage element unit 50 attached to the support member 10 on the floor portion 2 regardless of the state of the floor portion 2. For example, even if the floor portion 2 has an uneven shape, the support member 10 and the energy storage element unit 50 attached to the support member 10 can be stably placed on the floor portion 2.

[0146] In the embodiment described above, the support member 10 is a support member 10 for installing the energy storage element unit 50 at an installation location P that includes a floor 2. The support member 10 includes a bottom plate 11 that is disposed on the floor 2 and attached to the floor 2, and side plate portions 16 that stand upright from the bottom plate 11. The side plate portions 16 are attached to the energy storage element unit 50. According to this embodiment, the energy storage element unit 50 can be installed at the installation location P of the building 1 via the support member 10 without being attached to the wall 3. Therefore, the support member 10 shown in the figure allows the energy storage element unit 50 to be stably installed even at the installation location P where the wall 3 cannot be sufficiently strong.

[0147] Although one embodiment has been described with reference to specific examples, the above-described specific examples do not limit the present invention. The above-described embodiment can be implemented with various other specific examples, and various omissions, substitutions, changes, additions, etc. can be made without departing from the spirit of the present invention. [Explanation of symbols]

[0148] 1: building, 2: floor, 3: wall, 4: connection, 10: support member, 11: bottom plate, 16: side plate, 50: energy storage element unit, 51: energy storage element module, 60: housing, 70: decorative panel, 90: energy storage equipment, 100: building with energy storage equipment, P: installation location

Claims

1. A support member for installing an energy storage element unit in an installation location including a floor, a bottom plate portion disposed on the floor portion and attached to the floor portion; a side plate portion rising from the bottom plate portion, The side plate portion is a support member attached to the energy storage element unit.

2. the bottom plate portion includes a first surface and a second surface, the first surface being connected to the energy storage element unit, and the second surface being connected to the floor portion; The support member of claim 1 , wherein a gap is formed between the first surface and the second surface.

3. the bottom plate portion includes a first surface and a second surface, the first surface being connected to the energy storage element unit, and the second surface being connected to the floor portion; The support member according to claim 1 , wherein an area of ​​the second surface in a bottom view is smaller than an area of ​​the bottom plate portion in a bottom view.

4. The support member according to claim 1 , wherein at least one of the bottom plate portion and the side plate portion is provided with a wire passing hole through which wires electrically connected to the energy storage element unit can pass.

5. the energy storage element unit includes a housing that houses an energy storage element module, and a decorative panel that is attached to the housing and covers a portion of the housing, The support member according to claim 1 , wherein the support member includes a first portion that supports the housing and a second portion that supports the decorative panel.

6. The support member of claim 5 , wherein the second portion is detachable from the first portion.

7. The support member according to claim 1 , further comprising a connecting member connecting a side edge portion of the bottom plate portion to a side edge portion of the side plate portion.

8. The support member according to claim 1 , wherein the bottom plate portion supports the energy storage element unit from below.

9. the installation location includes a wall portion rising from the floor portion, The support member according to claim 1 , wherein the side plate portion is disposed between the wall portion and the energy storage element unit.

10. A support member according to any one of claims 1 to 9; an energy storage element unit attached to the support member.

11. the energy storage element unit includes a housing that houses an energy storage element module, The power storage facility according to claim 10 , wherein the housing is attached to the side plate portion.

12. The housing includes a bottom wall portion and a plurality of side wall portions rising from the bottom wall portion, the housing is attached to the side plate portion at at least one of the side wall portions, the bottom wall portion includes an observation area that can be observed from above when the energy storage element module is housed in the housing, The power storage facility according to claim 11 , wherein the observation area is connected to the at least one side wall portion.

13. The power storage facility according to claim 10; A building including the installation location.

Images