Power storage element unit, fixing member for the same, and building with power storage element unit

Abstract

To firmly fix a power storage element unit to a wall portion of a building.SOLUTION: A power storage element unit 10 is fixed to a wall portion 2 of a building 1. The power storage element unit 10 includes a power storage element module 20, a housing 40 that accommodates the power storage element module 20, and a fixing member 60 that fixes the housing 40 to the wall portion 2. The fixing member 60, when viewed facing the wall portion 2, is positioned inside an outer edge 43 of the housing 40. The fixing member 60 extends along a first direction along a column 4 of the wall portion 2 and includes a main portion 61 fixed to the column 4.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to an energy storage element unit, a fixing member for the energy storage element unit, and a building with an energy storage element unit. [Background technology]

[0002] There is known an energy storage element unit including an energy storage element module and a housing that houses the energy storage element module. As disclosed in Patent Document 1, for example, the energy storage element unit may be fixed to a wall of a building via a fixing bracket (fixing member). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-86693 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present disclosure is to provide an energy storage element unit that can be firmly fixed to a wall portion of a building, a fixing member for the energy storage element unit, and a building with an energy storage element unit. [Means for solving the problem]

[0005] An energy storage element unit according to an embodiment of the present disclosure includes: An energy storage element unit fixed to a wall of a building, a power storage element module; a housing that houses the energy storage element module; a fixing member that fixes the housing to the wall portion, the fixing member is located inside an outer edge of the housing when viewed facing the wall portion, The fixing member is an energy storage element unit that extends in a first direction along a pillar of the wall portion and includes a main portion that is fixed to the pillar.

[0006] A fixing member for an energy storage element unit according to one embodiment of the present disclosure includes: A fixing member for an energy storage element unit, for fixing an energy storage element unit including an energy storage element module and a housing that houses the energy storage element module, to a wall portion of a building, comprising: The fixing member for the energy storage element unit includes a main portion that extends in a first direction along the pillar of the wall portion and is fixed to the pillar.

[0007] A building with an energy storage element unit according to an embodiment of the present disclosure includes: a building including a wall portion; The building with the energy storage element unit includes the above-mentioned energy storage element unit fixed to the wall portion. [Effects of the Invention]

[0008] According to the present disclosure, the energy storage element unit can be firmly fixed to the wall of a building. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of an energy storage element unit according to one embodiment. [Figure 2] FIG. 2 is a front cross-sectional view of the energy storage element unit shown in FIG. [Figure 3] 3 is a side cross-sectional view of the energy storage element unit shown in FIG. [Figure 4] FIG. 4 is an exploded perspective view of the energy storage element unit shown in FIG. [Figure 5] FIG. 5 is a front view of the fixing member shown in FIG. [Figure 6] FIG. 6 is a front cross-sectional view of an energy storage element unit according to a modified example. [Figure 7] FIG. 7 is a front view of a fixing member according to a modified example. [Figure 8] FIG. 8 is a front view of a fixing member according to a modified example. [Figure 9] FIG. 9 is a front view of a fixing member according to a modified example. [Figure 10] FIG. 10 is a front view of a fixing member according to a modified example. [Figure 11] FIG. 11 is a front view of a fixing member according to a modified example. [Figure 12] FIG. 12 is a front view of a fixing member according to a modified example. [Figure 13] FIG. 13 is a front view of a fixing member according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0010] An embodiment of the present disclosure relates to the following [1] to [9].

[0011] [1] A storage element unit fixed to a wall of a building, a power storage element module; a housing that houses the energy storage element module; a fixing member that fixes the housing to the wall portion, the fixing member is located inside an outer edge of the housing when viewed facing the wall portion, The fixing member extends in a first direction along a pillar of the wall portion, and includes a main portion fixed to the pillar.

[0012] [2] The energy storage element unit according to [1], wherein the fixing member includes a support portion that extends along a second direction intersecting the first direction and supports the housing.

[0013] [3] A control module for controlling the energy storage element module, the housing includes a first housing that houses the control module, and a second housing that is aligned with the first housing in the first direction and houses the energy storage element module, The energy storage element unit according to [1] or [2], wherein the main portion is positioned across the first housing and the second housing.

[0014] [4] A control module for controlling the energy storage element module, the housing has an elongated shape extending in the first direction when viewed facing the wall portion, The energy storage element unit according to [1] or [2], wherein the housing accommodates the control module so as to be aligned with the energy storage element module in the first direction.

[0015] [5] The main portion is located at the center of the housing in the second direction when viewed facing the wall portion, The energy storage element unit according to any one of [2] to [4], wherein the support portions extend from the main portion to both sides in the second direction.

[0016] [6] The main portion includes a first main portion fixed to a first pillar and a second main portion fixed to a second pillar different from the first pillar, The energy storage element unit described in any one of [2] to [4], wherein the support portion includes a first support portion extending from the first main portion to the second main portion on one side in the first direction, and a second support portion extending from the first main portion to the second main portion on the other side in the first direction.

[0017] [7] The energy storage element unit according to any one of [1] to [6], further comprising a support stand that is located on a floor of the building and supports the housing from below.

[0018] [8] A fixing member for an energy storage element unit for fixing an energy storage element unit including an energy storage element module and a housing that houses the energy storage element module to a wall of a building, the fixing member comprising: a fixing member for the energy storage element unit, the fixing member including a main portion extending in a first direction along a pillar of the wall portion and fixed to the pillar;

[0019] [9] A building including a wall; A building with an energy storage element unit, comprising: the energy storage element unit according to any one of [1] to [7], which is fixed to the wall portion.

[0020] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In the drawings attached to this specification, the scale and aspect ratios have been appropriately changed and exaggerated from those of the actual objects for the convenience of illustration and ease of understanding. Configurations shown in some drawings may be omitted in other drawings.

[0021] 1 to 5 are diagrams illustrating an energy storage element unit 10 according to an embodiment of the present disclosure. The energy storage element unit 10 is used as a secondary battery unit capable of storing and discharging electricity. The energy storage element unit 10 is applied to buildings such as homes and facilities, for example. In this case, the energy storage element unit 10 is electrically connected to the wiring of the building and functions as a power source for electrical devices installed in the building.

[0022] FIG. 1 is a perspective view of a storage element unit 10. As shown in FIG. 1, the storage element unit 10 is fixed to a wall 2 (wall surface) of a building 1. The storage element unit 10 may be installed inside the building 1. In this case, the storage element unit 10 may be placed on a floor 3 of the building 1. The storage element unit 10 may also be installed outside the building 1. A building 1 with the storage element unit 10 fixed to the wall 2 is also referred to as a building 5 with a storage element unit. The building 5 with a storage element unit includes the building 1 and the storage element unit 10 fixed to the wall 2 of the building 1.

[0023] In this specification, the direction along the wall 2 in a horizontal plane is referred to as the X direction, the direction perpendicular to the wall 2 in a horizontal plane is referred to as the Y direction, and the vertical direction is referred to as the Z direction. The X direction, Y direction, and Z direction are perpendicular to each other. Viewing an object along the X direction is also referred to as a side view, viewing an object along the Y direction is also referred to as a front view, and viewing an object along the Z direction is also referred to as a planar view.

[0024] As shown in FIG. 1, the energy storage element unit 10 includes an energy storage element module 20, a control module 30, a housing 40, a support base 50, and a fixing member 60 (see FIG. 4).

[0025] The energy storage element module 20 stores and discharges electricity. The energy storage element module 20 is electrically connected to the wiring of the building 1. By electrically connecting the energy storage element module 20 to the wiring of the building 1, the energy storage element unit 10 functions as a secondary battery unit of the building 1.

[0026] The energy storage element module 20 may include multiple 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. A cell may be, for example, a lithium ion battery. Multiple cells may be stacked on top of each other. Multiple cells may be electrically connected to each other in series or parallel.

[0027] The energy storage element module 20 may include a plurality of energy storage element modules 20. In the example shown in Fig. 1, the energy storage element module 20 includes two energy storage element modules 20. However, this is not limited to this, and the energy storage element module 20 may include one or three or more energy storage element modules 20. As shown in Fig. 1, the plurality of energy storage element modules 20 may be aligned in the Z direction. The plurality of energy storage element modules 20 may be electrically connected to each other by series connection or parallel connection.

[0028] The control module 30 controls the energy storage element module 20. More specifically, the control module 30 has a function of controlling the storage and discharge of the energy storage element module 20. The control module 30 may also have a function of converting AC power to DC power and a function of converting DC power to AC power. The control module 30 may also have a function of monitoring the storage state (e.g., the amount of stored power) of the energy storage element module 20. The control module 30 may also have a function of monitoring the presence or absence of an abnormality in the energy storage element module 20.

[0029] The control module 30 may be aligned with the energy storage element module 20 in the Z direction. As shown in Fig. 1 , the control module 30 may be positioned above the energy storage element module 20 in the Z direction. The control module 30 is electrically connected to the energy storage element module 20.

[0030] The housing 40 houses the energy storage element module 20 and the control module 30. The housing 40 may include a first housing 41 and a second housing 42. The first housing 41 houses the control module 30. The second housing 42 houses the energy storage element module 20. When the energy storage element module 20 includes a plurality of energy storage element modules 20, the housing 40 may also include a plurality of second housings 42 that house each of the energy storage element modules 20. In the example shown in FIG. 1 , the housing 40 includes two second housings 42 so as to house two energy storage element modules 20, respectively.

[0031] The first housing 41 may be aligned with the second housing 42 in the Z direction. The first housing 41 may be located above the second housing 42 in the Z direction. The second housing 42 may be aligned with the first housing 41 in the Z direction. The second housing 42 may be located below the first housing 41 in the Z direction. When the housing 40 includes multiple second housings 42, the multiple second housings 42 may be aligned with each other in the Z direction. A support base 50 may be located below the second housing 42 in the Z direction.

[0032] The first housing 41 may have a substantially rectangular parallelepiped shape. FIG. 2 is a front cross-sectional view of the energy storage element unit 10. FIG. 3 is a side cross-sectional view of the energy storage element unit 10. As shown in FIGS. 2 and 3, the first housing 41 includes a first top plate 41a and three first side plate portions 41b, 41c, and 41d. The first top plate 41a and the three first side plate portions 41b, 41c, and 41d are each formed in a plate shape. The first top plate 41a is located above the first housing 41 in the Z direction. The three first side plate portions 41b, 41c, and 41d each extend downward in the Z direction from the first top plate 41a. The first side plate portions 41b and 41c are located on both sides of the first housing 41 in the X direction. The first side plate portion 41d is located so as to face the wall portion 2 in the Y direction. The first top plate portion 41a and the three first side plate portions 41b, 41c, and 41d may be connected to one another by bolting.

[0033] The first top plate portion 41a may have a rectangular shape in a plan view. The first top plate portion 41a may have an elongated shape extending in the X direction in a plan view. The first side plate portions 41b, 41c may have a rectangular shape in a side view. The first side plate portions 41b, 41c may have an elongated shape extending in the Z direction in a side view. The first side plate portion 41d may have a rectangular shape in a front view. The first side plate portion 41d may have an elongated shape extending in the X direction in a front view.

[0034] The first housing 41 has a first housing space 45 therein. The first housing space 45 is defined by a first top panel 41a, three first side panels 41b, 41c, and 41d, a second top panel 42a of a second housing 42 positioned below the first housing 41 in the Z direction, and the wall 2. The control module 30 is housed in this first housing space 45. The control module 30 may be fixed to the first housing 41 within the first housing space 45 by a fixing device (not shown).

[0035] The first housing 41 may have any configuration. The first housing 41 may have other configurations. For example, the first housing 41 may further include a first side plate portion that faces the first side plate portion 41d in the Y direction. The first housing 41 may also include a first bottom plate portion that is located lower in the Z direction and faces the first top plate portion 41a.

[0036] The second housing 42 may have a substantially rectangular parallelepiped outer shape. The multiple second housings 42 may have the same configuration. As shown in FIGS. 2 and 3, the second housing 42 includes a second top plate 42a and three second side plate portions 42b, 42c, and 42d. The second top plate 42a and the three second side plate portions 42b, 42c, and 42d are each formed in a plate shape. The second top plate 42a is located above the second housing 42 in the Z direction. The three second side plate portions 42b, 42c, and 42d each extend downward in the Z direction from the second top plate 42a. The second side plate portions 42b and 42c are located on both sides of the second housing 42 in the X direction. The second side plate portion 42d is located so as to face the wall portion 2 in the Y direction. The second top plate portion 42a and the three second side plate portions 42b, 42c, 42d may be connected to one another by bolt fastening.

[0037] The second top panel portion 42a may have a rectangular shape in a plan view. The second top panel portion 42a may have an elongated shape extending in the X direction in a plan view. The second side panel portions 42b, 42c may have a rectangular shape in a side view. The second side panel portions 42b, 42c may have an elongated shape extending in the Z direction in a side view. The second side panel portion 42d may have a rectangular shape in a front view. The second side panel portion 42d may have an elongated shape extending in the X direction in a front view.

[0038] The second housing 42 has a second housing space 46 therein. The second housing space 46 is defined by the second top plate 42a, the three second side plate portions 42b, 42c, and 42d, the second top plate 42a of another second housing 42 located below the second housing 42 in the Z direction or the support surface 51 of the support base 50, and the wall portion 2. The energy storage element module 20 is housed in this second housing space 46. The energy storage element module 20 may be fixed to the second housing 42 within the second housing space 46 by a fixing device (not shown).

[0039] The second housing 42 may have any configuration. The second housing 42 may have other configurations. For example, the second housing 42 may further include a second side plate portion that faces the second side plate portion 42d in the Y direction. The second housing 42 may also include a second bottom surface portion that is located lower in the Z direction and faces the second top plate portion 42a.

[0040] The support base 50 supports the housing 40 from below. The support base 50 is located below the housing 40 in the Z direction. As shown in FIG. 1 , the support base 50 is located on the floor 3 of the building 1. The support base 50 may be anchored to the floor 3. The support base 50 has a support surface 51. The support surface 51 is located above the support base 50 in the Z direction. The housing 40 is placed on this support surface 51. The housing 40 is fixed to the wall 2 by fixing members 60, which will be described later, and is supported from below by the support base 50. Note that the energy storage element unit 10 does not necessarily have to include the support base 50. In this case, the housing 40 may be placed on the floor 3 or may be separated from the floor 3.

[0041] The fixing member 60 fixes the housing 40 to the wall 2. Fig. 4 is an exploded perspective view of the energy storage element unit 10. Fig. 5 is a front view of the fixing member 60. As shown in Fig. 4, the fixing member 60 is located between the housing 40 and the wall 2. The fixing member 60 may be a thin metal plate.

[0042] The fixing member 60 is located inside the outer edge 43 of the housing 40 when viewed facing the wall 2, i.e., in a front view. In other words, the fixing member 60 is covered by the housing 40 in a front view. Therefore, the maximum dimension d1 in the Z direction of the fixing member 60 (see FIG. 5) is smaller than the dimension of the housing 40 in the Z direction. Furthermore, the maximum dimension d2 in the X direction of the fixing member 60 (see FIG. 5) is smaller than the dimension of the housing 40 in the X direction. The maximum dimension d1 in the Z direction of the fixing member 60 is, for example, not less than 50 mm and not more than 2500 mm. The maximum dimension d2 in the X direction of the fixing member 60 is, for example, not less than 50 mm and not more than 700 mm. The thickness of the fixing member 60 is, for example, not less than 1 mm and not more than 30 mm.

[0043] The fixing member 60 is fixed to the housing 40 and also to the wall 2. As shown in FIG.

[0044] The main part 61 is fixed to a pillar 4 of the wall part 2. The pillar 4 is a structure that supports the building 1. The pillar 4 is arranged inside the wall part 2. A plurality of pillars 4 are arranged inside the wall part 2 so as to be lined up in the X direction along the wall part 2. The pillars 4 extend along the Z direction. The width w1 of the pillars 4 (dimension in the X direction) is, for example, 10 mm or more and 200 mm or less. The arrangement interval of the pillars 4 in the X direction is, for example, 300 mm or more and 1000 mm or less.

[0045] The main portion 61 extends in a first direction along the pillar 4, i.e., in the Z direction. The main portion 61 may have an elongated rectangular shape extending in the Z direction. The main portion 61 may be located across the first housing 41 and multiple second housings 42. That is, the main portion 61 may be located so as to overlap with the first housing 41 and each of the second housings 42 in a front view. The main portion 61 may be located in the center of the housing 40 in the X direction in a front view. The width w2 of the main portion 61 (the dimension in the X direction) may be smaller than the width w1 of the pillar 4. The width w2 of the main portion 61 is, for example, 10 mm or more and 200 mm or less.

[0046] As shown in Figures 4 and 5, a plurality of through holes 63 are formed in the main portion 61. In the example shown in Figures 4 and 5, three through holes 63 are formed in the main portion 61. The plurality of through holes 63 may be aligned in the Z direction. The plurality of through holes 63 may be aligned at equal intervals in the Z direction. The through holes 63 may be located in the center of the main portion 61 in the X direction. The through holes 63 are configured to allow pins or screws to pass through. The main portion 61 is fixed to the pillar 4 by pins or screws that pass through the through holes 63.

[0047] The through-hole 63 located at the upper part in the Z direction may be positioned so as to overlap with the first housing 41 in a front view. The through-hole 63 located at the center in the Z direction may be positioned so as to overlap with the second housing 42 located at the upper part in the Z direction in a front view. The through-hole 63 located at the lower part in the Z direction may be positioned so as to overlap with the second housing 42 located at the lower part in the Z direction in a front view.

[0048] The support portion 62 supports the housing 40. The support portion 62 is fixed to the housing 40. The support portion 62 extends along a second direction intersecting with the first direction (Z direction). As shown in FIGS. 4 and 5, the second direction may be the X direction perpendicular to the Z direction. That is, the support portion 62 may extend along the X direction. The support portion 62 may extend from the main portion 61 in the X direction. The support portion 62 may have an elongated rectangular shape extending in the X direction.

[0049] The support portion 62 may include a plurality of support portions 62. The plurality of support portions 62 respectively support the first housing 41 and the plurality of second housings 42. In the example shown in FIGS. 4 and 5, the support portion 62 includes six support portions 62. As shown in FIGS. 4 and 5, the support portions 62 may extend from the main portion 61 to both sides in the X direction. The plurality of support portions 62 may be aligned in the Z direction. The plurality of support portions 62 may be aligned at equal intervals in the Z direction. In the example shown in FIGS. 4 and 5, two support portions 62 extending from the main portion 61 to both sides in the X direction are aligned in three rows in the Z direction. The width w3 (dimension in the Z direction) of each support portion 62 is, for example, not less than 10 mm and not more than 200 mm.

[0050] The two support parts 62 located at the top in the Z direction may be positioned so as to overlap the first housing 41 in a front view. The two support parts 62 located in the center in the Z direction may be positioned so as to overlap the second housing 42 located at the top in the Z direction in a front view. The two support parts 62 located at the bottom in the Z direction may be positioned so as to overlap the second housing 42 located at the bottom in the Z direction in a front view.

[0051] As shown in Figures 4 and 5, a bolt hole 64 is formed in each support part 62. In the example shown in Figures 4 and 5, the bolt hole 64 is formed in the tip of each support part 62. The bolt hole 64 is configured to allow a bolt to pass through. The support part 62 is fixed to the housing 40 by being fastened to the housing 40 with a bolt that passes through the bolt hole 64.

[0052] The two support portions 62 located above in the Z direction may be fastened with bolts to the first side plate portions 41b, 41c of the first housing 41. The two support portions 62 located in the center in the Z direction may be fastened with bolts to the second side plate portions 42b, 42c of the second housing 42 located above in the Z direction. The two support portions 62 located below in the Z direction may be fastened with bolts to the second side plate portions 42b, 42c of the second housing 42 located below in the Z direction.

[0053] Next, a method for fixing the energy storage element unit 10 having such a configuration will be described. The method for fixing the energy storage element unit 10 according to this embodiment is a method for fixing the above-mentioned energy storage element unit 10 to the wall 2 of the building 1. The method for fixing the energy storage element unit 10 includes a preparation step, an accommodation step, an installation step, and a fixing step.

[0054] First, a preparation process is carried out. In the preparation process, the energy storage element module 20, the control module 30, the housing 40, the support base 50, and the fixing members 60 are each prepared. The energy storage element module 20 includes a plurality of energy storage element modules 20. The housing 40 includes a first housing 41 and a plurality of second housings 42. The energy storage element module 20, the control module 30, the housing 40, the support base 50, and the fixing members 60 are each brought into the building 1.

[0055] Next, an accommodation process is carried out. In the accommodation process, the energy storage element module 20 and the control module 30 are each accommodated in a housing 40. The control module 30 is accommodated in a first housing 41. The plurality of energy storage element modules 20 are each accommodated in a second housing 42. After the control module 30 is accommodated in the first housing 41 and the plurality of energy storage element modules 20 are each accommodated in the second housing 42, the first housing 41 and the plurality of second housings 42 are connected to each other by bolting.

[0056] Next, an installation process is carried out. In the installation process, the support base 50 is installed on the floor 3 of the building 1. The support base 50 is installed near the wall 2, in front of the pillar 4 of the wall 2 (see FIG. 1). The support base 50 is anchored to the floor 3 at this position.

[0057] Thereafter, a fixing process is carried out. In the fixing process, the housing 40 is fixed to the wall 2 by the fixing members 60. The housing 40 is placed on the support surface 51 of the support stand 50. The housing 40 is fixed to the wall 2 by the fixing members 60 while placed on the support surface 51 of the support stand 50. The fixing members 60 are interposed between the housing 40 and the wall 2 (see FIG. 4). The fixing members 60 are arranged so as to be located inside the outer edge 43 of the housing 40 when viewed facing the wall 2, i.e., when viewed from the front.

[0058] In the fixing process, the fixing member 60 is fixed to the housing 40 and the wall 2. For example, first, the main portion 61 of the fixing member 60 is fixed to the pillar 4 of the wall 2. The main portion 61 is fixed to the pillar 4 with a pin or screw passing through a through hole 63. Thereafter, the support portion 62 of the fixing member 60 is fixed to the housing 40. The support portion 62 is fixed to the housing 40 by being fastened to the housing 40 with a bolt passing through a bolt hole 64. Alternatively, the support portion 62 of the fixing member 60 may be fixed to the housing 40 first. Then, the main portion 61 of the fixing member 60 may be fixed to the pillar 4 of the wall 2.

[0059] In this manner, the energy storage element unit 10 is fixed to the wall 2 of the building 1.

[0060] As described above, according to the present embodiment, the fixing member 60 includes the main portion 61 that extends along the Z direction and is fixed to the pillar 4. This allows the fixing member 60 to be fixed along the pillar 4 that serves as the base. Therefore, the fixing member 60 allows the energy storage element unit 10 to be firmly fixed to the wall portion 2 of the building 1.

[0061] Furthermore, according to the present embodiment, the fixing member 60 is located inside the outer edge 43 of the housing 40 when viewed facing the wall 2. This allows the size of the energy storage element unit 10 to fit within the size of the housing 40 when viewed from the front. This prevents the energy storage element unit 10 from becoming too large, and enables the energy storage element unit 10 to be installed in a small space.

[0062] Furthermore, according to the present embodiment, the fixing member 60 includes support portions 62 that extend along the X direction and support the housing 40. This allows the housing 40 to be supported along the X direction by the support portions 62. Therefore, the fixing member 60 can firmly support the housing 40.

[0063] Furthermore, according to the present embodiment, the main portion 61 is positioned across the first housing 41 and the second housing 42. As a result, even when the housing 40 includes the first housing 41 and the second housing 42, the main portion 61 can support each of the first housing 41 and the second housing 42. Therefore, the fixing member 60 can support the housing 40 even more firmly.

[0064] Furthermore, according to this embodiment, the main portion 61 is located in the center of the housing 40 in the X direction when viewed facing the wall portion 2, and the support portions 62 extend from the main portion 61 to both sides in the X direction. This allows the support portions 62 to support the housing 40 in a balanced manner from both sides in the X direction. Therefore, the fixing member 60 can support the housing 40 even more firmly.

[0065] Furthermore, according to this embodiment, a support base 50 that supports the housing 40 from below is located on the floor 3 of the building 1. This allows the support base 50 to support the housing 40, which is fixed to the wall 2 of the building 1, from below as well. This allows the housing 40 to be supported even more firmly.

[0066] Although one embodiment has been described above with reference to specific examples, the above-described specific examples do not limit the embodiment. The above-described embodiment can be implemented with various other specific examples, and various omissions, substitutions, changes, additions, etc. can be made within the scope of the gist of the embodiment.

[0067] Below, several modified examples will be described with reference to the drawings. In the following description and the drawings used in the following description, parts that can be configured similarly to the above-described embodiment will be designated by the same reference numerals as those used for the corresponding parts in the above-described embodiment. Duplicate explanations will be omitted. If it is clear that the operational effects obtained in the above-described embodiment can also be obtained in the modified example, the explanation may be omitted.

[0068] FIG. 6 is a front cross-sectional view of the energy storage element unit 10 according to one modified example. In the example shown in FIG. 2, the housing 40 includes a first housing 41 that houses the control module 30 and a second housing 42 that houses the energy storage element module 20. However, this is not limited to this, and as shown in FIG. 6, the housing 40 may be configured with a single housing 40. In this case, the housing 40 may have an elongated shape extending in the Z direction when viewed facing the wall 2, i.e., in a front view. The housing 40 may have a rectangular shape in a front view. The housing 40 may house the energy storage element module 20 and the control module 30 so as to be aligned with the energy storage element module 20 in the Z direction. The housing 40 may house multiple energy storage element modules 20. The multiple energy storage element modules 20 may be aligned in the Z direction.

[0069] In the example shown in FIG. 6 , the housing 40 houses one control module 30 and two energy storage element modules 20. The control module 30 is located above the energy storage element module 20 in the Z direction. The two energy storage element modules 20 are located below the control module 30 in the Z direction. The two energy storage element modules 20 are lined up in the Z direction. A first partition 47 is located between the control module 30 and the energy storage element module 20. This first partition 47 defines a first housing space 45 that houses the control module 30 inside the housing 40. A second partition 48 is located between the two energy storage element modules 20. This second partition 48 defines a second housing space 46 that houses the energy storage element modules 20 inside the housing 40.

[0070] Even when the housing 40 is configured in this manner, the fixing member 60 includes a main portion 61 that extends along the Z direction and is fixed to the pillar 4, so that the fixing member 60 can firmly fix the storage element unit 10 to the wall portion 2 of the building 1.

[0071] FIG. 7 is a front view of a fixing member 60 according to one modified example. In the example shown in FIG. 5, the multiple support portions 62 of the fixing member 60 are aligned in the Z direction. However, this is not limited to this, and as shown in FIG. 7, the multiple support portions 62 do not have to be aligned in the Z direction. In the example shown in FIG. 7, the multiple support portions 62 are not aligned in the Z direction, and two support portions 62 extend from the main portion 61 at the center in the Z direction to both sides in the X direction. As a result, the fixing member 60 has a shape resembling the character "+" when viewed from the front.

[0072] FIG. 8 is a front view of a fixing member 60 according to one modified example. In the example shown in FIG. 5, the support portion 62 of the fixing member 60 extends along the X direction. However, this is not limited to this, and as shown in FIG. 8, the support portion 62 may extend along a direction other than the X direction as long as it intersects with the first direction (Z direction). In the example shown in FIG. 8, the two support portions 62 extend obliquely upward (in a direction tilted 45 degrees clockwise with respect to the Z direction and in a direction tilted 45 degrees counterclockwise with respect to the Z direction) from the upper end of the main portion 61 in the Z direction in a front view. As a result, the fixing member 60 has a "Y" shape in a front view.

[0073] FIG. 9 is a front view of a fixing member 60 according to one modified example. In the example shown in FIG. 5, the support portions 62 of the fixing member 60 extend from the main portion 61 to both sides in the X direction. However, this is not limited to this, and as shown in FIG. 9, the support portions 62 may extend to only one side or the other side in the X direction. In the example shown in FIG. 9, the support portions 62 extend from the main portion 61 to one side in the X direction (the right side in the figure). Three rows of support portions 62 extending from the main portion 61 to one side in the X direction are lined up in the Z direction. As a result, the fixing member 60 has an "E" shape when viewed from the front.

[0074] Fig. 10 is a front view of a fixing member 60 according to one modified example. In the example shown in Fig. 5, the fixing member 60 includes a support portion 62. However, this is not limited to this, and as shown in Fig. 10, the fixing member 60 does not have to include the support portion 62. In the example shown in Fig. 10, the fixing member 60 does not include the support portion 62, and is composed of a main portion 61. As a result, the fixing member 60 has an "I" shape when viewed from the front.

[0075] FIG. 11 is a front view of a fixing member 60 according to one modified example. In the example shown in FIG. 5, the fixing member 60 includes one main portion 61. However, this is not limited to this, and as shown in FIG. 11, the fixing member 60 may include multiple main portions 61. In the example shown in FIG. 11, the fixing member 60 includes two main portions 61. That is, the main portion 61 includes a first main portion 61a and a second main portion 61b. Note that the fixing member 60 may include three or more main portions 61. That is, the main portion 61 may further include a third main portion, a fourth main portion, etc.

[0076] 11, the first main portion 61a is fixed to a first pillar 4a, and the second main portion 61b is fixed to a second pillar 4b different from the first pillar 4a. The second pillar 4b may be a pillar adjacent to the first pillar 4a in the X direction. The second pillar 4b may be located to one side of the first pillar 4a in the X direction (the right side in FIG. 11). The first main portion 61a and the second main portion 61b may be fixed to the same pillar 4.

[0077] 11, the fixing member 60 may include a plurality of support portions 62. In the example shown in Fig. 11, the fixing member 60 includes two support portions 62. That is, the support portion 62 includes a first support portion 62a and a second support portion 62b.

[0078] In the example shown in FIG. 11, the first support portion 62a and the second support portion 62b each extend in the X direction. The first support portion 62a extends from the first main portion 61a to the second main portion 61b on one side in the Z direction (the upper side in FIG. 11). The first support portion 62a extends from the upper end of the first main portion 61a in the Z direction to the upper end of the second main portion 61b in the Z direction. The second main portion 61b extends from the first main portion 61a to the second main portion 61b on the other side in the Z direction (the lower side in FIG. 11). The second main portion 61b extends from the lower end of the first main portion 61a in the Z direction to the lower end of the second main portion 61b in the Z direction. As a result, the fixing member 60 has a square-shaped configuration when viewed from the front.

[0079] Fig. 12 is a front view of a fixing member 60 according to one modified example. In the example shown in Fig. 12, the fixing member 60 includes two main portions 61 and three support portions 62. That is, in the example shown in Fig. 12, in addition to the example shown in Fig. 11, the support portions 62 further include a third support portion 62c. Note that the fixing member 60 may include four or more support portions 62. That is, the support portions 62 may further include a fourth support portion, a fifth support portion, etc.

[0080] In the example shown in FIG. 12, the third support portion 62c extends in the X direction. The third support portion 62c extends from the first main portion 61a to the second main portion 61b at the central portion in the Z direction. The third support portion 62c extends from the central portion of the first main portion 61a in the Z direction to the central portion of the second main portion 61b in the Z direction. As a result, the fixing member 60 has a shape like the Chinese character "日" in a front view.

[0081] FIG. 13 is a front view of the fixing member 60 according to a modified example. In the example shown in FIG. 13, in addition to the example shown in FIG. 12, the fixing member 60 further includes a reinforcing portion 65. The reinforcing portion 65 reinforces the support portion 62. The fixing member 60 may include a plurality of reinforcing portions 65. In the example shown in FIG. 13, the fixing member 60 includes two reinforcing portions 65. That is, the reinforcing portion 65 includes a first reinforcing portion 65a and a second reinforcing portion 65b. Note that the fixing member 60 may include one or three or more reinforcing portions 65.

[0082] In the example shown in FIG. 13, the first reinforcing portion 65a and the second reinforcing portion 65b each extend in the Z direction. The first reinforcing portion 65a and the second reinforcing portion 65b are arranged at the same position in the X direction. The first reinforcing portion 65a and the second reinforcing portion 65b are each located at the central portion in the X direction. The first reinforcing portion 65a extends from the first support portion 62a to the third support portion 62c at the central portion in the X direction. The first reinforcing portion 65a extends from the central portion of the first support portion 62a in the X direction to the central portion of the third support portion 62c in the X direction. The second reinforcing portion 65b extends from the third support portion 62c to the second support portion 62b at the central portion in the X direction. The second reinforcing portion 65b extends from the central portion of the third support portion 62c in the X direction to the central portion of the second support portion 62b in the X direction. As a result, the fixing member 60 has a shape like the Chinese character "田" in a front view.

[0083] Thus, the fixing member 60 can have various shapes.

[0084] The components disclosed in the above-described embodiment and the above-described modifications may be combined as needed. [Explanation of symbols]

[0085] 1. Building 2 wall 3 Floor 4 pillars 4a First Pillar 4b Second Pillar 5. Buildings with storage element units 10. Energy storage element unit 20 Energy storage element module 30 Control Module 40 cabinets 41 First cabinet 42 Second cabinet 43 Outer Edge 50 Support stand 60 Fixing member 61 Main Section 61a First Main Section 61b Second Subject 62 Support part 62a 1st support part 62b Second support part

Claims

1. An energy storage element unit fixed to a wall of a building, a power storage element module; a housing that houses the energy storage element module; a fixing member that fixes the housing to the wall portion, the fixing member is located inside an outer edge of the housing when viewed facing the wall portion, The fixing member extends in a first direction along a pillar of the wall portion and includes a main portion fixed to the pillar.

2. The energy storage element unit according to claim 1 , wherein the fixing member includes a support portion that extends along a second direction intersecting the first direction and supports the housing.

3. a control module for controlling the energy storage element module; the housing includes a first housing that houses the control module, and a second housing that is aligned with the first housing in the first direction and houses the energy storage element module, The energy storage element unit according to claim 1 , wherein the main portion is positioned across the first housing and the second housing.

4. a control module for controlling the energy storage element module; the housing has an elongated shape extending in the first direction when viewed facing the wall portion, The energy storage element unit according to claim 1 , wherein the housing accommodates the control module so as to be aligned with the energy storage element module in the first direction.

5. the main portion is located at a center of the housing in the second direction when viewed facing the wall portion, The energy storage element unit according to claim 2 , wherein the support portions extend from the main portion to both sides in the second direction.

6. the main portion includes a first main portion fixed to a first pillar and a second main portion fixed to a second pillar different from the first pillar; 3. The energy storage element unit of claim 2, wherein the support portion includes a first support portion extending from the first main portion to the second main portion on one side in the first direction, and a second support portion extending from the first main portion to the second main portion on the other side in the first direction.

7. The energy storage element unit according to claim 1 , further comprising a support base that is located on a floor of the building and supports the housing from below.

8. A fixing member for an energy storage element unit, for fixing an energy storage element unit including an energy storage element module and a housing that houses the energy storage element module, to a wall portion of a building, comprising: A fixing member for an energy storage element unit includes a main portion extending in a first direction along a pillar of the wall portion and fixed to the pillar.

9. a building including a wall portion; A building with an energy storage element unit, comprising: the energy storage element unit according to any one of claims 1 to 7, fixed to the wall portion.

Images