JP5967415B2 - Power storage device - Google Patents

Power storage device Download PDF

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JP5967415B2
JP5967415B2 JP2012060816A JP2012060816A JP5967415B2 JP 5967415 B2 JP5967415 B2 JP 5967415B2 JP 2012060816 A JP2012060816 A JP 2012060816A JP 2012060816 A JP2012060816 A JP 2012060816A JP 5967415 B2 JP5967415 B2 JP 5967415B2
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power storage
fixture
frame
housing
hole
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JP2013196857A (en
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篤志 中本
篤志 中本
慶三 西川
慶三 西川
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Panasonic Intellectual Property Management Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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Description

本発明は、筐体内に蓄電池を内蔵した蓄電装置に関する。   The present invention relates to a power storage device in which a storage battery is built in a housing.

近年、太陽光発電システムの普及や非常時の電力確保を目的として、筐体内に蓄電池を内蔵した蓄電装置が普及してきている。例えば、特許文献１には、多数の蓄電池が筐体内に収納された蓄電装置が記載されている。あるいは、金属製の蓄電池収納箱に多数の鉛蓄電池を収納したものも提案されている(特許文献２参照)。   In recent years, power storage devices with a built-in storage battery in a housing have become widespread for the purpose of popularizing solar power generation systems and securing power in an emergency. For example, Patent Document 1 describes a power storage device in which a large number of storage batteries are housed in a housing. Or what stored many lead storage batteries in metal storage battery storage boxes is also proposed (refer to patent documents 2).

特開２０１１−２４９０８１号公報JP 2011-249081 A 特開２００３−３３１８０４号公報JP 2003-331804 A

ところで、蓄電装置が屋内に設置される場合、壁材の下部に幅木があると、蓄電装置と壁材との間に幅木の厚み分だけ隙間が生じてしまう。そのため、蓄電装置の固定強度が低下し、また、蓄電装置から壁材を通して配線される電線が露出して見栄えが良くないという問題があった。   By the way, when the power storage device is installed indoors, if there is a baseboard at the lower part of the wall material, a gap corresponding to the thickness of the baseboard is generated between the power storage device and the wall material. For this reason, there is a problem in that the fixing strength of the power storage device is reduced, and the electric wire wired from the power storage device through the wall material is exposed and looks bad.

本発明は、上記課題に鑑みて為されたものであり、筐体の固定強度並びに見栄えの向上を図ることを目的とする。   The present invention has been made in view of the above problems, and an object thereof is to improve the fixing strength and appearance of the casing.

本発明の蓄電装置は、１乃至複数の蓄電池と、前記蓄電池を内部に収納する箱形の筐体と、前記筐体を壁材に固定する固定具とを備え、前記筐体は、前記固定具が取り付けられる面に電線挿通孔が設けられ、前記固定具は、前記壁材に対向する前記筐体の後面に接する平坦部と、前記平坦部の周縁より後方へ立ち上がることにより、前記電線挿通孔に挿通される電線の周囲を囲み且つ前記壁材と前記筐体との隙間を隠す周壁部とを有し、前記平坦部は、前記電線挿通孔と対向する位置に貫通孔が設けられていることを特徴とする。 The power storage device of the present invention includes one or more storage batteries, a box-shaped casing that houses the storage batteries therein, and a fixture that fixes the casing to a wall material. An electric wire insertion hole is provided on a surface to which the fixture is attached, and the fixture is inserted into the electric wire insertion portion by rising backward from a flat portion contacting the rear surface of the casing facing the wall material and a peripheral edge of the flat portion. possess a peripheral wall portion hiding and the wall material surrounds the wire to be inserted through the hole and a gap between the housing, the flat part, the through hole is provided at a position opposite to the wire insertion holes and said that you are.

この蓄電装置において、前記固定具は、固定ねじによって前記壁材に固定され、前記筐体は、前記固定具の前記平坦部が取り付けられる面と対向する面に開口部を有し、前記平坦部が取り付けられる面には、前記固定ねじの頭部を前記開口部に臨ませる貫通孔が設けられることが好ましい。 In this power storage device, the fixture is fixed to the wall member by a fixing screw, and the housing has an opening on a surface facing the surface to which the flat portion of the fixture is attached, and the flat portion It is preferable that a through-hole that allows the head of the fixing screw to face the opening is provided on the surface to which the screw is attached.

本発明の蓄電装置は、固定具によって筐体が壁材に強固に固定され、しかも、固定具の周壁部で壁材と筐体との隙間が隠されるので、筐体の固定強度並びに見栄えの向上を図ることができるという効果がある。   In the power storage device of the present invention, the casing is firmly fixed to the wall material by the fixing tool, and the gap between the wall material and the casing is hidden by the peripheral wall portion of the fixing tool. There is an effect that improvement can be achieved.

本発明の実施形態を示し、設置された状態の断面図である。It is sectional drawing of the state which showed embodiment of this invention and was installed. 同上の分解斜視図である。It is an exploded perspective view same as the above. 同上の一部省略した分解斜視図である。It is a disassembled perspective view in which a part was omitted. 同上における固定具の斜視図である。It is a perspective view of the fixing tool in the same as the above. 同上を示し、(ａ)は正面図、(ｂ)は上面図、(ｃ)は右側面図、(ｄ)は背面図である。The same as above, (a) is a front view, (b) is a top view, (c) is a right side view, and (d) is a back view.

以下、図面を参照して本発明に係る蓄電装置の実施形態を詳細に説明する。ただし、以下の説明では図２において前後左右上下の各方向を規定している。   Hereinafter, embodiments of a power storage device according to the present invention will be described in detail with reference to the drawings. However, in the following description, the front, rear, left, right, and up and down directions are defined in FIG.

本実施形態の蓄電装置は、図２及び図３に示すように複数(図示例では４つ)の電池モジュール１と、電池モジュール１を保持する保持体(ハウジング２)とを備える。   As shown in FIGS. 2 and 3, the power storage device of the present embodiment includes a plurality (four in the illustrated example) of battery modules 1 and a holding body (housing 2) that holds the battery modules 1.

ハウジング２は、複数のフレームからなるフレームブロックと、複数枚のパネルからなる筐体とで構成される。フレームブロックは、何れも金属製の後側フレーム20及び前側フレーム21、左側フレーム22、右側フレーム23、支持部24で構成される。また筐体は、何れも金属製の後側パネル30及び前側パネル31、左側パネル32、右側パネル33、下側パネル34、上側パネル35で構成される。   The housing 2 includes a frame block made up of a plurality of frames and a housing made up of a plurality of panels. Each of the frame blocks includes a metal rear frame 20, a front frame 21, a left frame 22, a right frame 23, and a support portion 24. The casing is composed of a metal rear panel 30, a front panel 31, a left panel 32, a right panel 33, a lower panel 34, and an upper panel 35.

前側フレーム21は、矩形の枠部210と、枠部210のほぼ中央に設けられた縦桟211と、枠部210の上下方向に沿って並設された２つの横桟212とを有する。左側フレーム22及び右側フレーム23は、何れも矩形の金属板からなり、前後方向に沿った両端が曲げ起こされることで角樋状に形成され、後述するように長手方向の両端が後側フレーム20の枠部200と前側フレーム21の枠部210にそれぞれねじ止めされる。   The front frame 21 includes a rectangular frame portion 210, a vertical beam 211 provided substantially at the center of the frame portion 210, and two horizontal beams 212 arranged in parallel along the vertical direction of the frame portion 210. Each of the left frame 22 and the right frame 23 is made of a rectangular metal plate and is formed in a square hook shape by bending both ends along the front-rear direction, and both ends in the longitudinal direction are formed on the rear frame 20 as will be described later. The frame portion 200 and the frame portion 210 of the front frame 21 are respectively screwed.

左側フレーム22及び右側フレーム23の後端部が後側フレーム20の枠部200にねじ止めされ、左側フレーム22及び右側フレーム23の前端部と支持部24の前端部に前側フレーム21の枠部210がねじ止めされる。ここで、右側の列の電池モジュール１と、右側フレーム23で連結された後側フレーム20及び前側フレーム21の各枠部200，210の右側の枠との間にスペースが形成されており、このスペースに電池モジュール１を制御する制御ユニット６が配設される(図３参照)。この制御ユニット６は、電池モジュール１の電圧や温度を検出し、各電池モジュール１の蓄電状態や故障の有無を監視するものである。ただし、このような制御ユニット６は従来周知であるから詳細な構成や動作の説明は省略する。   The rear end portions of the left frame 22 and the right frame 23 are screwed to the frame portion 200 of the rear frame 20, and the frame portion 210 of the front frame 21 is connected to the front end portions of the left frame 22 and the right frame 23 and the front end portion of the support portion 24. Is screwed. Here, a space is formed between the battery modules 1 in the right column and the right frames of the frame portions 200 and 210 of the rear frame 20 and the front frame 21 connected by the right frame 23. A control unit 6 for controlling the battery module 1 is disposed in the space (see FIG. 3). The control unit 6 detects the voltage and temperature of the battery module 1 and monitors the storage state of each battery module 1 and the presence or absence of a failure. However, since such a control unit 6 is well known in the art, a detailed description of the configuration and operation is omitted.

また、前列の２つの電池モジュール１と前側フレーム21との間にスペースが形成されており、このスペースに２つの排気ダクト７が左右に並べて配設される。排気ダクト７は、事故などで電池モジュール１に内部短絡が生じた場合に電池モジュール１から放出される高温のガスを安全な温度まで冷却する機能を担うものである。   Further, a space is formed between the two battery modules 1 in the front row and the front frame 21, and the two exhaust ducts 7 are arranged side by side in this space. The exhaust duct 7 has a function of cooling a high-temperature gas released from the battery module 1 to a safe temperature when an internal short circuit occurs in the battery module 1 due to an accident or the like.

本実施形態における排気ダクト７は、金属材料によって扁平な矩形箱状に形成され、電池モジュール１に対向する後面の下部に、電池モジュール１の放出口10Cと連通する導入口(図示せず)が開口し、前面の上部に放出口70が開口する。そして、後列の電池モジュール１における後面側の放出口10Cが閉塞され、後列の電池モジュール１における前面側の放出口10Cと前列の電池モジュール１における後面側の放出口10Cが筒状のジョイント(図示せず)で連結される。さらに、前列の電池モジュール１における前面側の放出口10Cと排気ダクト７の導入口とがジョイントで連結される。すなわち、電池モジュール１の放出口10Cから放出される高温のガスがジョイントを介して導入口より排気ダクト７内に導入され、排気ダクト７内を移動する間に外気との熱交換で冷却されるため、放出口70からは低温のガスが放出されることになる。なお、排気ダクト７の放出口70から放出される低温のガスは、各パネル30〜35間の隙間から筐体の外に放出される。   The exhaust duct 7 in the present embodiment is formed in a flat rectangular box shape by a metal material, and an introduction port (not shown) communicating with the discharge port 10C of the battery module 1 is formed at the lower part of the rear surface facing the battery module 1. The discharge port 70 is opened at the top of the front surface. Then, the rear-side discharge port 10C in the rear-row battery module 1 is closed, and the front-side discharge port 10C in the rear-row battery module 1 and the rear-side discharge port 10C in the front-row battery module 1 are cylindrical joints (see FIG. (Not shown). Further, the front side discharge port 10C and the introduction port of the exhaust duct 7 in the battery module 1 in the front row are connected by a joint. That is, high-temperature gas discharged from the discharge port 10C of the battery module 1 is introduced into the exhaust duct 7 through the joint through the joint, and is cooled by heat exchange with the outside air while moving in the exhaust duct 7. Therefore, low temperature gas is released from the discharge port 70. In addition, the low temperature gas discharge | released from the discharge port 70 of the exhaust duct 7 is discharge | released out of a housing | casing from the clearance gap between each panel 30-35.

後側パネル30及び前側パネル31は、長方形の金属板における上端及び左右両端が曲げ起こされて構成されている。左側パネル32及び右側パネル33は、短冊状の主部320，330と、主部320，330の上端に連結された略半円筒形の凹部321，331と、凹部321，331の上端に連結された鈎形の角部322，332とを有している。下側パネル34は、長方形の金属板が全周に亘って曲げ起こされて構成されている。また、下側パネル34には上向きに突出する円錐台形状の突部340が２つ設けられており、各突部340の底面にねじ挿通孔が穿孔されている。上側パネル35は、長方形の金属板における前端及び後端がそれぞれ曲げ加工されて構成されている。   The rear panel 30 and the front panel 31 are configured by bending up an upper end and left and right ends of a rectangular metal plate. The left panel 32 and the right panel 33 are connected to strip-shaped main portions 320 and 330, substantially semi-cylindrical concave portions 321 and 331 connected to the upper ends of the main portions 320 and 330, and upper ends of the concave portions 321 and 331. And a bowl-shaped corner 322,332. The lower panel 34 is configured by bending up a rectangular metal plate over the entire circumference. The lower panel 34 is provided with two frustoconical protrusions 340 that protrude upward, and screw insertion holes are formed in the bottom surface of each protrusion 340. The upper panel 35 is configured by bending a front end and a rear end of a rectangular metal plate.

また、ハウジング２内において電池モジュール１が収納される収納空間と施工空間を隔絶する配線部カバー５がフレームブロックに取り付けられる。配線部カバー５は、各電池モジュール１の端子部10A，10Bと電線(図示せず)との結線作業が完了した後、後側フレーム20及び前側フレーム21にねじ止めされる。ただし、電池モジュール１の端子部10A，10Bに接続された電線は、配線部カバー５に設けられる挿通孔(図示せず)に挿通されて配線部カバー５で隔絶される収納空間の外に引き出される。   In addition, a wiring portion cover 5 that separates the storage space in which the battery module 1 is stored in the housing 2 from the construction space is attached to the frame block. The wiring portion cover 5 is screwed to the rear frame 20 and the front frame 21 after the connection work between the terminal portions 10A and 10B of each battery module 1 and the electric wires (not shown) is completed. However, the electric wires connected to the terminal portions 10 </ b> A and 10 </ b> B of the battery module 1 are drawn out of a storage space that is inserted into an insertion hole (not shown) provided in the wiring portion cover 5 and is isolated by the wiring portion cover 5. It is.

一方、収納空間の外に引き出された電線は、後側フレーム20の両突片203間に配設された取付板205に取り付けられる開閉器８の片側の端子に接続される。さらに開閉器８のもう片側の端子に電線を介して端子台(図示せず)が接続される。端子台も取付板205に取り付けられている。開閉器８は、ハンドル80の操作により、外部から引き込まれて端子台に接続される電線と各電池モジュール１の端子部10A，10Bとを繋ぐ電路を開閉する。そして、開閉器８及び端子台と電線との結線作業が終了すれば、箱形に形成されたセパレータ53が配線部カバー５に取り付けられ、開閉器８と端子台の一部(外部から引き込まれた電線と接続される端子を除く部分)がセパレータ53で覆われる。   On the other hand, the electric wire drawn out of the storage space is connected to a terminal on one side of the switch 8 attached to a mounting plate 205 disposed between the two projecting pieces 203 of the rear frame 20. Further, a terminal block (not shown) is connected to the terminal on the other side of the switch 8 via an electric wire. A terminal block is also attached to the mounting plate 205. The switch 8 opens and closes an electric circuit that connects the electric wire drawn from the outside and connected to the terminal block and the terminal portions 10 </ b> A and 10 </ b> B of each battery module 1 by operating the handle 80. When the connection between the switch 8 and the terminal block and the electric wire is completed, a box-shaped separator 53 is attached to the wiring section cover 5 and a part of the switch 8 and the terminal block (drawn from the outside). The portion excluding the terminal connected to the wire is covered with the separator 53.

また、後側パネル30は、施工空間に臨む上部の右寄りに矩形の電線挿通孔300が貫通している。すなわち、壁材に設けられる通線孔から引き出された電線が電線挿通孔300に挿通されて筐体内に引き込まれ、施工空間に配設されている端子部に結線される。   Further, the rear panel 30 has a rectangular electric wire insertion hole 300 passing through the upper right side of the construction space. That is, the electric wire drawn out from the through hole provided in the wall material is inserted into the electric wire insertion hole 300 and drawn into the housing, and is connected to the terminal portion disposed in the construction space.

さらに、後側パネル30は、施工空間に臨む上部の左右両端にそれぞれ２つの孔が上下方向に並べて貫通されている。下側の孔は、後述する固定具９を後側パネル30に固定するためのねじが挿通されるねじ挿通孔301である。一方、上側の孔は、ねじ挿通孔301よりも径の大きい円形に形成され、固定具９を壁材に固定するための固定ねじ96の頭部を施工空間に臨ませるための貫通孔302である。   Furthermore, the rear panel 30 has two holes arranged in the vertical direction at the left and right ends of the upper part facing the construction space. The lower hole is a screw insertion hole 301 through which a screw for fixing the fixture 9 described later to the rear panel 30 is inserted. On the other hand, the upper hole is formed in a circular shape having a diameter larger than that of the screw insertion hole 301, and is a through hole 302 for allowing the head of the fixing screw 96 for fixing the fixture 9 to the wall material to face the construction space. is there.

固定具９は、図４及び図５に示すように長方形の金属板の端部が全周に亘って同じ向きに曲げ起こされてなり、後側パネル30の上部後面に接する平坦部90と、平坦部90の周縁より後方へ立ち上がる周壁部91とを有している。   As shown in FIGS. 4 and 5, the fixture 9 has an end portion of a rectangular metal plate bent in the same direction over the entire circumference, and a flat portion 90 in contact with the upper rear surface of the rear panel 30; And a peripheral wall portion 91 that rises rearward from the periphery of the flat portion 90.

平坦部90は、中央から右寄りの位置(後側パネル30の電線挿通孔300と前後方向に対向する位置)に、円形の貫通孔92が貫通している。また、平坦部90の左右両端には、それぞれ２つの孔が上下方向に並べて貫通されている。下側の孔は、後側パネル30のねじ挿通孔301に挿通されるねじが締め込まれるねじ孔93である。上側の孔は、木ねじからなる固定ねじ96の軸が挿通される固定ねじ挿通孔94である。ただし、平坦部90における固定ねじ挿通孔94の周囲が略円錐台形状に形成されて後方へ突出している。   The flat portion 90 has a circular through-hole 92 passing through a position on the right side from the center (a position facing the wire insertion hole 300 of the rear panel 30 in the front-rear direction). In addition, two holes are penetrated in the vertical direction at the left and right ends of the flat portion 90, respectively. The lower hole is a screw hole 93 into which a screw inserted into the screw insertion hole 301 of the rear panel 30 is tightened. The upper hole is a fixing screw insertion hole 94 through which the shaft of the fixing screw 96 made of a wood screw is inserted. However, the periphery of the fixing screw insertion hole 94 in the flat portion 90 is formed in a substantially truncated cone shape and protrudes rearward.

次に、本実施形態の蓄電装置の設置手順について、図１を参照して説明する。まず、前側パネル31が外され、ねじ挿通孔301に挿通されるねじ95がねじ孔93に締め込まれることにより、固定具９が後側パネル30の背面上部に固定される。そして、後側パネル30の下部が幅木Ｂに当たるようにして、蓄電装置が床Ｆの上に設置される。   Next, the installation procedure of the power storage device of this embodiment will be described with reference to FIG. First, the front panel 31 is removed, and the screw 95 inserted through the screw insertion hole 301 is tightened into the screw hole 93, whereby the fixture 9 is fixed to the upper back of the rear panel 30. Then, the power storage device is installed on the floor F so that the lower portion of the rear panel 30 hits the skirting board B.

続いて、木ねじからなる固定ねじ96が、後側パネル30の貫通孔302を通して固定具９の固定ねじ挿通孔94に挿通され、壁材Ｗにねじ込まれる。これにより、蓄電装置が固定具９を介して壁材Ｗに強固に固定される。そして、壁材Ｗに設けられる通線孔(図示せず)から引き出された電線が固定具９の貫通孔92及び後側パネル30の電線挿通孔300に挿通されて筐体内に引き込まれ、施工空間に配設されている端子部に結線される。   Subsequently, a fixing screw 96 made of wood screws is inserted into the fixing screw insertion hole 94 of the fixture 9 through the through hole 302 of the rear panel 30 and screwed into the wall material W. Thereby, the power storage device is firmly fixed to the wall member W via the fixture 9. And the electric wire pulled out from the through hole (not shown) provided in the wall material W is inserted into the through hole 92 of the fixture 9 and the electric wire insertion hole 300 of the rear panel 30, and drawn into the housing. It is connected to a terminal portion disposed in the space.

最後に、前側フレーム21の前面側に前側パネル31が被せられ、左側パネル32及び右側パネル33の角部322，332を介して配線部カバー５にねじ止めされて前側パネル31がフレームブロックに固定される。これにより、蓄電装置の設置作業が完了する。   Finally, the front panel 31 is put on the front side of the front frame 21 and screwed to the wiring section cover 5 via the corners 322 and 332 of the left panel 32 and the right panel 33 to fix the front panel 31 to the frame block. Is done. Thereby, the installation work of the power storage device is completed.

上述のように、蓄電装置の筐体が固定具９によって壁材Ｗに強固に固定され、且つ固定具９の周壁部91が、電線挿通孔300に挿通される電線の周囲を囲み且つ壁材Ｗと筐体との隙間を隠しているので、筐体の固定強度並びに見栄えの向上を図ることができる。   As described above, the housing of the power storage device is firmly fixed to the wall member W by the fixture 9, and the peripheral wall portion 91 of the fixture 9 surrounds the periphery of the electric wire inserted through the electric wire insertion hole 300 and is a wall member. Since the gap between W and the housing is hidden, the fixing strength and appearance of the housing can be improved.

また、固定具９が取り付けられる後側パネル30と対向する面(前面)には、施工空間が設けられ、前側パネル31が取り外れた状態では、施工空間が前方に開口した開口部となっている。さらに、後側パネル30には、固定具９を壁材Ｗに固定するための固定ねじ96の頭部を開口部(施工空間)に臨ませる貫通孔302が設けられているので、固定具９を蓄電装置の筐体(後側パネル30)に取り付けた状態で固定ねじ96を締め込むことができる。その結果、固定具９を壁材Ｗに固定する際の作業性の向上を図ることができる。   In addition, a construction space is provided on the surface (front surface) facing the rear panel 30 to which the fixture 9 is attached. When the front panel 31 is removed, the construction space is an opening that opens forward. Yes. Further, the rear panel 30 is provided with a through-hole 302 that allows the head of a fixing screw 96 for fixing the fixture 9 to the wall material W to face the opening (construction space). Can be tightened with the mounting screw 96 attached to the housing (rear panel 30) of the power storage device. As a result, it is possible to improve workability when fixing the fixture 9 to the wall material W.

１ 電池モジュール(蓄電池)
９ 固定具
30 後側パネル(筐体)
91 周壁部
300 電線挿通孔
Ｗ 壁材 1 Battery module (storage battery)
9 Fixing tool
30 Rear panel (housing)
91 Perimeter wall
300 Wire insertion hole W Wall material

Claims (2)

１乃至複数の蓄電池と、前記蓄電池を内部に収納する箱形の筐体と、前記筐体を壁材に固定する固定具とを備え、前記筐体は、前記固定具が取り付けられる面に電線挿通孔が設けられ、前記固定具は、前記壁材に対向する前記筐体の後面に接する平坦部と、前記平坦部の周縁より後方へ立ち上がることにより、前記電線挿通孔に挿通される電線の周囲を囲み且つ前記壁材と前記筐体との隙間を隠す周壁部とを有し、前記平坦部は、前記電線挿通孔と対向する位置に貫通孔が設けられていることを特徴とする蓄電装置。 One or a plurality of storage batteries, a box-shaped casing for storing the storage batteries therein, and a fixture for fixing the casing to a wall material, the casing having an electric wire on a surface to which the fixture is attached An insertion hole is provided, and the fixture is configured such that a flat portion that contacts the rear surface of the housing that faces the wall material, and a wire that is inserted through the wire insertion hole by rising rearward from a peripheral edge of the flat portion . It possesses a peripheral wall portion to conceal the gap and and surrounds the wall material the housing, the flat portion is characterized in that the through hole is provided at a position opposite to the wire insertion holes power storage apparatus. 前記固定具は、固定ねじによって前記壁材に固定され、前記筐体は、前記固定具の前記平坦部が取り付けられる面と対向する面に開口部を有し、前記平坦部が取り付けられる面には、前記固定ねじの頭部を前記開口部に臨ませる貫通孔が設けられることを特徴とする請求項１記載の蓄電装置。 The fixing device is fixed to the wall member by a fixing screw, and the housing has an opening on a surface facing the surface to which the flat portion of the fixing device is attached, and the surface on which the flat portion is attached. The power storage device according to claim 1, further comprising a through hole that allows a head of the fixing screw to face the opening .
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