JP2017169279A - Pole-mounted power storage device and pole-mounted power storage device system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pole-mounted power storage device which, regarding a power storage device installed on a pole or the like, has a waterproof/dustproof function and a fire protection construction, and prevents operation abnormality from being generated due to temperature rise of a battery.SOLUTION: This pole-mounted power storage device 1 includes: a power storage battery unit 50 formed by housing a secondary battery 20 in a sealed case 55; an outer case 70 for forming a housing space in which the power storage battery unit 50 is arranged; a frame unit 90 for mounting the power storage battery unit and the outer case on a pillar member. In the pole-mounted power storage device, an intake port 78a for taking outside air into the housing space, an exhaust port 75a for exhausting air in the housing space to the outside, and a cooling air passage f1 for connecting the intake port and the exhaust port, etc. are formed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pole power storage device and a pole power storage system installed on a power pole and the like, and in particular, a pillar having a waterproof and dustproof function and a fireproof structure and capable of preventing the occurrence of abnormal operation due to a rise in battery temperature. The present invention relates to an upper power storage device and a pole power storage device system.

  In recent years, for example, power storage devices are widely used to charge storage batteries in the middle of the night when electricity charges are cheap and use the electricity during the day, or use the electricity charged during the day by solar power generation at night. It is becoming. There are various types of power storage devices, from large ones installed in factories and offices to medium and small ones installed in stores, ordinary houses, and the like.

  Patent Document 1 discloses a power supply system that includes a solar battery, a storage battery, a control unit, and the like, and that can temporarily supply power from the storage battery even when a commercial power source cannot be obtained. Is installed on the utility pole.

JP 2000-261980 A

  By the way, it is important for power storage devices installed and used outdoors that it is important that measures are taken so as not to cause failure due to intrusion of rainwater or dust, and that a fire prevention structure is preferably employed. . On the other hand, in an environment exposed to direct sunlight outdoors, the temperature of the secondary battery rises, but it is also necessary to keep the environmental temperature within a predetermined range so as not to cause abnormal operation.

  The present invention has been made in view of the problems as described above, and the object thereof is related to an on-pillar power storage device installed on a utility pole or the like, and has a waterproof and dustproof function and a fireproof structure, and the temperature of the battery. An object of the present invention is to provide a power storage device or the like that prevents the occurrence of more than an operation due to a rise.

In order to achieve the above object, a pole power storage device according to an embodiment of the present invention is as follows:
A storage battery unit in which a secondary battery is housed in a sealed case;
An outer case forming a storage space in which the storage battery unit is disposed;
A gantry unit for attaching the storage battery unit and the outer case to the pillar member;
An altitude installation type power storage device comprising:
An intake port for taking outside air into the storage space;
An exhaust port for discharging the air in the storage space to the outside;
A cooling air flow path connecting the intake port and the exhaust port;
A pole-type power storage device.

(Explanation of terms in this application)
The “pillar power storage device” refers to a power storage device that is installed and used on a power pole or the like.
In the present specification, the “battery cell” refers to an electrochemical cell that is a unit of a battery, such as a film-clad battery.
The “battery module” refers to a module that includes one or a plurality of battery cells and a case that houses the battery cells and outputs predetermined power.
“Storage battery unit” refers to a battery cell or battery module housed in a case (housing).

“Flange part” (flange part of the sealing case) is a structural part projecting outward from the case body part of the sealing case (consisting of a pair of case members as an example). It includes not only those formed but also those formed only partially.
Exhaust ports are formed on the “front side”, “rear side”, “left side”, and “right side” as well as forms in which the exhaust port is formed on the peripheral wall of the case. The form in which the exhaust port is formed in the lid member is also included.

  According to the present invention, it is related to a power storage device installed on a power pole or the like, and provides a pole power storage device that has a waterproof and dustproof function and a fireproof structure, and that also prevents an abnormal operation due to an increase in battery temperature. it can.

It is a figure which shows typically the structure of the electrical storage apparatus which concerns on this embodiment, Comprising: (a) is the figure seen from the front side, (b) is the figure seen from the side surface side. It is a disassembled perspective view which shows the components of a storage battery unit typically. It is a perspective view of an outer case, (a) is a perspective view of the whole, (b) is a perspective view which removes and shows a part of peripheral wall. It is the top view which looked at the bottom face member from the upper surface side. It is a section perspective view of the electrical storage device concerning this embodiment. It is an external appearance perspective view of a storage battery unit. It is an external appearance perspective view of the mount unit attached to a utility pole. It is a figure for demonstrating the flow of cooling air. It is a figure which shows typically the electrical storage apparatus which concerns on this embodiment seeing from upper direction.

  Embodiments of the present invention will be described below with reference to the drawings. Note that the configuration shown in the drawings is merely an embodiment of the present invention, and the present invention is not limited to the specific configuration, and can be appropriately changed without departing from the gist of the present invention. .

(About the entire device)
The pole power storage device 1 according to the present embodiment is installed, for example, on a utility pole. As schematically shown in FIG. 1, a storage battery unit 50, an outer case 70 that accommodates the storage battery unit 50, and the utility pole P. And a gantry unit 90 for mounting. In FIG. 1, the gantry unit 90 is shown only in FIG.

  In addition to the storage battery unit 50, the power pole P is also provided with a control board (not shown) for controlling charging / discharging of the unit. The pole power storage device 1 may serve as an emergency power source. For example, when power cannot be obtained from the grid power, power is supplied from the pole power storage device 1 to the target load (for example, a home or a store) for a predetermined time. About the charge of the storage battery unit 50, it is good also as a structure performed by the electric power feeding from system electric power.

  As schematically shown in FIG. 2, the storage battery unit 50 has a configuration in which a plurality of battery modules 20 are accommodated in a sealed case 55. The sealed case 55 includes two case parts 51 and 52 and a seal ring R1 (it does not exclude the presence of other components). The seal ring R1 may be an O-ring. The inside of the sealing case 55 is a sealed housing space. Thereby, self-digestion can be performed in the case, and fire spread can be prevented. Such a fire prevention structure is very useful in ensuring the safety of the power storage device. Further, according to the sealing structure as in the present embodiment, since the waterproof and dustproof function is also provided, it is particularly preferable for a power storage device installed outdoors. The specific structure of the sealed case 55 will be described separately with reference to other drawings.

  The shape and size of the battery module 20 are not particularly limited, and various types can be used. In the present embodiment, the battery module 20 is configured as a thin rectangular parallelepiped, for example. Although detailed illustration is omitted, the battery module 20 may be one in which one or more film-clad batteries (battery cells) are housed in a hard case. As the built-in film-clad battery (battery cell), a conventionally known general battery can be used.

  The film-clad battery has a battery element in which a positive electrode plate and a negative electrode plate are alternately laminated via a separator, and the battery element is enclosed in an outer film such as a laminate film together with an electrolyte. Good. Although the voltage of one film-clad battery is not limited at all, it may be in the range of 3.0V to 4.5V, for example. In one example, a battery element in a lithium ion secondary battery includes a positive electrode plate in which a positive electrode active material is applied to both surfaces such as an aluminum foil, and a negative electrode plate in which a carbon material capable of doping and undoping lithium is applied to both surfaces such as a copper foil. Are stacked via a separator. As the positive electrode active material, lithium / manganese composite oxide, lithium cobaltate, or the like is used. As the electrolyte solvent, for example, ester solvents such as propylene carbonate (PC), ethylene carbonate (EC), dimethyl carbonate (DMC), and methyl ethyl carbonate can be used. In particular, examples of the volatile nonaqueous electrolytic solvent having combustibility include carbonate solvents such as cyclic carbonates such as diethyl carbonate (DEC).

  A plurality of battery modules 20 are stacked in the thickness direction and fixed with a fixing tool to form one battery assembly. In FIG. 2, only one such laterally stacked battery assembly is shown, but as another example, two battery assemblies may be arranged side by side (see FIG. 5). For example, the total storage capacity of the battery may be about 3 kWh to 20 kWh. Further, the weight of the power storage device (in which the storage battery unit 50 is incorporated in the outer case 70) may be about 50 kg to 200 kg.

(Structure of sealed case)
The case members 51 and 52 of the sealed case 55 may have any shape as long as they can form a sealed space, and may not necessarily have the same or symmetrical shape. The same or symmetrical configuration will be described as an example. In addition, for example, there may be an expression such as “case members 51 and 52 are formed”, but this description does not necessarily require that both members have such a configuration, and only one of them is the It is also included that such a configuration.

  The case member 51 includes a cup 51c and a flange portion 51f provided at the periphery on the opening side. The case member 52 is similar, and has a cup portion 52c and a flange portion 52f. The case members 51 and 52 are shaped like a bathtub as a whole.

  The material of the case members 51 and 52 may be a metal (for example, steel, stainless steel, copper, brass, aluminum, or those obtained by painting or plating them). A rolled steel plate, a stainless steel plate, etc. can be used. The thickness of the material may be in the range of 0.5 mm to 3.0 mm, for example. If the material is within this range, a highly reliable fire-proof structure can be realized without significantly degrading the workability of the battery cover.

  Any method may be used for producing the case members 51 and 52. For example, the case members 51 and 52 may be formed integrally by pressing a single plate (for example, deep drawing). Alternatively, it may be formed by joining by welding. When a single plate material is formed by deep drawing, the ridgeline part of the cup part and the connection part between the cup part and the flange part can be formed seamlessly with a smooth curved shape, with a view to sealing performance and high strength To preferred. Moreover, since operations such as welding are unnecessary, it is preferable from the viewpoint of manufacturing cost. In FIG. 2, the ridge line portions of the cup portions 51c and 52c are schematically shown in a squared state. However, when the battery cover is manufactured by pressing or the like, naturally, the ridge line portions are gently curved. It is formed in a shape (R shape).

  An annular seal member R1 is sandwiched between the flange portion 51f of the case member 51 and the flange portion 52f of the case member 52. The flange portions 51f and 52f may be mechanically fixed by a fixing tool such as a screw or a pin.

  The shape of the internal space of the sealing case 55 may be any shape, but in consideration of the shape of the battery module 20 accommodated therein, it is preferably a rectangular tube shape or a shape close thereto. The contour shape of the flange portions 51f and 52f is a quadrangle, and the corner portions may be formed at right angles as shown in FIG. 2, or the corner portions are formed in a circular arc shape as shown in FIG. It may be.

  Although not shown in FIGS. 1, 2, 5, and 6, a positive terminal and a negative terminal are actually provided at predetermined positions of the sealing case 55.

(Outer case)
Next, the outer case 70 will be described. The outer case 70 is a box that stores the storage battery unit 50. The material may be a resin material or the like, but is a metal material in the present embodiment. For example, each member may be formed by bending or pressing a stainless steel plate.

  As shown in FIGS. 3A and 3B, the outer case 70 is disposed on the bottom surface member 78, the side wall members (the front surface 71, the back surface 72, the right side surface 73, the left side surface 74), and the upper portion of the side wall member. And a lid member 75. Although not limited, in the example of FIG. 3, the outer case 70 has a generally cubic shape as a whole. The lid member has a substantially low quadrangular pyramid shape. In other words, the lid member 75 has a shape having a plurality of inclined surfaces whose height gradually decreases from the center to the outside with the substantially center as the top.

  As the side wall member, each of the front surface 71, the back surface 72, the right side surface 73, and the left side surface 74 may be formed of one steel plate, or bent into a substantially U shape as shown in FIG. Alternatively, two steel plates may be used (only one member is shown). A peripheral wall that surrounds the storage battery unit is configured by arranging two steel plates bent in a substantially U shape so as to face each other.

The bottom surface member 78 has a flat bottom surface 79 in this example, and the bottom surface 79 is formed with an intake port 78a for taking in outside air. FIG. 4 is a plan view of the bottom surface member 78 as viewed from the top surface side. Air inlet 78a, one for the left and right sides of the center line L ₁ in FIG, and are formed one on the front and rear sides of the center line L _2. Air inlet 78a may have a symmetrical across the center line L _1. Air inlet 78a may have a symmetrical across the center line L _2. The intake ports 78a have the same shape, but may have different shapes in another aspect.

In FIG. 4, an area indicated by reference sign S ₅₀ is an area where the storage battery unit 50 is projected from above. Inlet 78a (also including a part of the intake port 78a is formed in a region S ₅₀₎ which is preferably formed in the inner area of the area S _50. By doing in this way, the inlet port 78a exists in the lower region of the storage battery unit 50, and the outside air that has entered from the inlet port 78a passes through the lower side of the storage battery unit 50, and the heat exchange is performed there. This is because cooling is performed in a wide range.

  Regarding the lid member 75 (see FIG. 3) of the outer case 70, the lid member 75 has a substantially quadrangular pyramid shape as described above, and an exhaust port 75a is formed in a part thereof. Since the lid member 75 has such a shape, the following advantages are obtained. (I) The first is that since the upper surface of the lid member 75 is not a flat surface but a slope, rainwater, dust and the like are difficult to collect on the upper surface.

  (Ii) Second, by forming the lid member 75 in such a shape, the space Va (see FIG. 1) in the upper part of the storage battery unit 50 inside the case also has a substantially square weight corresponding to the shape of the lid member 75. It becomes a shape. The space Va having such a shape is advantageous for efficiently releasing heat from one exhaust port 75a. The reason for this is that, in the case of such a shape, it is difficult for air to stay near the corners in the space as compared to a rectangular parallelepiped space, and the internal air can be discharged efficiently.

  The exhaust port 75a is not necessarily formed in the lid member 75, but is preferably provided on the upper side of the outer case 70 from the viewpoint of efficient exhaust. In the present embodiment, a cover 76 is provided on a part of the lid member 75, and an exhaust port 75a is formed there. The cover portion 76 is a roof-like portion in which a part of the lid member 75 protrudes upward, and the exhaust port 75a is formed therebelow. The exhaust port 75a does not open upward but opens sideways. According to such a configuration, it is difficult for rain and dust to enter the outer case 70 through the exhaust port 75a, so that the reliability of the power storage device can be ensured over a long period of time. In this example, the exhaust port 75a is formed in such a manner that its opening surface is a vertical surface, and rain and dust are thereby prevented from entering, but the present invention is not necessarily limited to this. May be slightly inclined with respect to the vertical plane (for example, inclined at 30 ° or less).

  A blower 80 such as a fan is disposed at the exhaust port 75a. The blower 80 is preferably waterproof. In addition to the blower 80, a controller or the like (not shown) for driving the blower 80 may be arranged in the case. The blower 80 may be supplied with power from the storage battery unit 50, or may be supplied with power from a solar battery or the like, for example.

  When providing a solar cell panel, the panel may be arranged on the upper surface of the lid member 75. At this time, the panel may be attached in a floating state via a spacer or the like so that a space is formed between the power generation panel and the lid member 75.

(Arrangement of storage battery unit)
Next, the arrangement relationship between the outer case 70 and the storage battery unit 50 will be described.

  As shown in FIGS. 1B and 5, the storage battery unit 50 is disposed with a predetermined distance between the storage battery unit 50 and the side wall of the outer case 70. More specifically, as shown in FIG. 1B, there are gaps between the front surface of the storage battery unit 50 and the front surface of the outer case 70, and between the rear surface of the storage battery unit 50 and the rear surface of the outer case 70. The flow paths f1 and f2 through which air passes are provided. In this example, the widths of the flow paths f1 and f2 (that is, the distance from the storage battery unit to the outer case) are substantially the same.

  According to such a configuration, the front side and the rear side of the storage battery unit 50 can be uniformly cooled in a balanced manner, as compared with the configuration in which the flow path is provided only on one of the front and rear surfaces of the storage battery unit 50. It becomes possible.

  On the other hand, as shown in FIGS. 1A and 5, between the right side surface of the storage battery unit 50 and the right side wall of the outer case 70, and between the left side surface of the storage battery unit 50 and the left side wall of the outer case 70. There are also gaps, which are flow paths f4 and f3 through which air passes, respectively. The widths of the flow paths f3 and f4 (that is, the distance from the storage battery unit to the outer case) are also substantially the same in this example.

  According to such a configuration, it is possible to cool both the left and right sides of the storage battery unit 50 uniformly in a balanced manner as compared with the configuration in which the flow path is provided only on either the left or right side of the storage battery unit 50.

  As shown to Fig.1 (a), about the left-right inlet port 78a and the left-right flow paths f3 and f4, it is preferable in one form that it is left-right object on both sides of the centerline CL.

  The relatively large space Va above the storage battery unit 50 plays a role of making it difficult to transmit heat to the storage battery unit 50 even if the temperature of the lid member 75 rises due to direct sunlight. The height dimension (maximum portion) of the space Va is an example and may be about 30 mm or more and 200 mm or less. If the thickness is less than 30 mm, heat from the lid member is easily transmitted to the storage battery unit, leading to an increase in the temperature of the internal battery. On the other hand, if the size exceeds 200 mm, the size of the entire power storage device is increased.

  The storage battery unit 50 is attached to the bottom member 78 of the outer case 70 using a stay 81 as shown in FIG. The stay 81 is made of metal and is fixed to the outer surface of the sealing case 55 and the inner surface of the bottom member 78. The fixing can be performed, for example, by using a fixing tool such as a screw or a pin, by welding, or a combination thereof.

  The stays 81 are preferably arranged apart from each other so that a gap is created between them. This is because the flow path f ′ is formed, and the cooling air can flow through here. The number of stays 81 is not particularly limited. In this example, one stay 81 is provided at each of the four corners at the lower end of the storage battery unit 50.

(Mounting unit)
As shown in FIGS. 7 and 1B, the gantry unit 90 includes a gantry 91, support members 93-1 and 93-2 that support the gantry 91, and end portions of the support members 93-1 and 93-2. Are respectively provided with fixing members 95-1 and 95-2.

  The gantry 91 has a substantially flat receiving surface 92 in this example, and an outer case 70 in which the storage battery unit 50 is disposed therein is placed. The receiving surface 92 is provided with openings 91a formed in sizes and positions corresponding to the air inlets 78a of the outer case 70, respectively.

  In order to fix the outer case 70 to the mount 91 with sufficient strength, there are fixing tools such as bolts and nuts, and a fixing band (whether it is made of cloth or metal) as necessary. May be used. These fixing bands or the like may be used to fix the outer case 70 to the utility pole P.

  The fixing members 95-1 and 95-2 are annular fixing tools and are attached to the utility pole P. Although detailed illustration is omitted, the fixing members 95-1 and 95-2 are constituted by a substantially semicircular arc first member and a substantially semicircular arc second member. May be.

  The columnar power storage device 1 of the present embodiment configured as described above has a waterproof and dustproof function and a fireproof structure since the secondary battery is housed in the sealed case 55 and housed in the outer case 70. It will be suitable for outdoor installation. In addition, since an intake port 78a for taking outside air into the case, an exhaust port 75b for discharging the air in the case to the outside, and cooling air flow paths (f1 to f4) connecting them are formed, It is possible to cool the storage battery unit 50 by flowing, and it is possible to prevent the occurrence of abnormal operation due to the temperature rise of the battery.

  Further, according to the configuration of the present embodiment, it is not necessary to mount a device that performs forced cooling such as a heat pump, which is advantageous for reducing the size and weight of the power storage device installed on the pillar, No energy is required to operate the heat pump.

  The number, shape, size, etc. of the intake and exhaust ports can be changed as appropriate, but the temperature of the secondary battery (especially lithium ion battery cell) should not exceed 45 ° C even under direct sunlight conditions. It is preferable to design in order to prevent the occurrence of abnormal operation.

  Since the intake port 78a is formed on the bottom surface of the outer case 70 and the exhaust port 75a is formed on the upper side of the outer case, it is possible to allow the cooling air to flow by natural convection from below to above. The blower 80 such as a fan may be omitted depending on circumstances, but is preferably provided from the viewpoint of efficient exhaust.

  Regarding the arrangement of the storage battery unit 50, as shown in FIG. 8B, the orientation of the flange portions 51f and 52f is parallel to the blower 80 (that is, the direction intersecting the “exhaust direction” of the cooling air). As shown in FIG. 8A, it is preferable that the orientation of the flange portions 51f and 52f intersects with the blower 80 (parallel to the “exhaust direction”). The reason for this is that, in the arrangement of FIG. 8B, the flange portions 51f and 52 can obstruct the flow of the cooling air from the rear side to the front (see reference numeral f2), whereas FIG. This is because the cooling air traveling from the rear side to the front can be favorably guided to the exhaust port 75a (fan 80).

  FIG. 9 is a diagram schematically showing the power storage device of this embodiment as viewed from above. As shown in the drawing, the extending direction of the flange portions 51f and 52f is parallel to the discharge direction (vertical direction in the drawing) of the exhaust port 75a. The exhaust port 75a is provided on the front side of the outer case 70 at the center in the width direction (left-right direction) of the surface. Further, in this example, the cooling air flow paths f3 and f4 are formed on the left and right sides of the storage battery unit 50 at the positions and sizes of the left and right objects.

According to such a configuration, it is possible to flow the cooling air in substantially the same manner on both the left and right sides of the storage unit 50, which makes it possible to uniformly cool the left and right. However, this does not require a completely symmetrical structure. The center line L ₁ (in the direction in which the flange portion extends) is preferably configured to pass through the middle of the exhaust port 75a. However, in another aspect, the center line L ₁ is the exhaust port 75a. It may be configured to pass near the end. Furthermore, the exhaust port 75a may be arranged by shifting the position from the center line L _1. Relates lateral position of the exhaust port 75a, need not be the middle completely in the lateral direction of the case, the position of the center slightly offset (e.g., the amount of shift from the center line L ₁ is the width dimension of the case 15 % (This is called “substantially center”).

Although one embodiment of the present invention has been described above, the shape, material, size, structure, and the like of each part of the columnar power storage device can be changed as appropriate.
For example, the lid member constituting the outer case has been described as a quadrangular pyramid, but other than that, the upper surface is composed of only one slope, or two slopes (inverted V shape, roof Type).

  The exhaust port can be formed on the front side, the rear side, the left side, or the right side of the outer case. In the above embodiment, there is one exhaust port, but a plurality of exhaust ports may be provided. For example, in addition to the exhaust port 75a (see FIG. 1) on the front side of the power storage device, a rear side exhaust port (not shown) can be provided.

  As for the intake ports, one, two, three, five or more intake ports may be formed. Regarding the flow path connecting the intake port and the exhaust port, in the above embodiment, the flow paths f1 to f4 are actually connected to each other. However, by providing a partition, the flow paths independent from each other are formed. You may make it do.

  The shape of the gantry unit may be changed, and the power storage device may be attached to a predetermined object other than the utility pole.

(Appendix)
This application discloses the following invention. The reference numerals in parentheses are for reference only and do not limit the present invention.
1. A storage battery unit (50) in which a secondary battery (20) is housed in a sealed case (55);
An outer case (70) that forms a storage space in which the storage battery unit (50) is disposed;
A gantry unit (90) for attaching the storage battery unit and the outer case to the column member,
An intake port (78a) for taking outside air into the storage space;
An exhaust port (75a) for discharging the air in the storage space to the outside;
A cooling air flow path (at least one of f1 to f4) connecting the intake port and the exhaust port;
A pillar-shaped power storage device in which is formed.

2. The air inlet is formed on the bottom surface of the outer case;
The columnar power storage device as described above, wherein the exhaust port is formed on an upper side of the outer case (an upper half region in a height direction of the case, preferably an upper quarter region).

3. further,
The columnar power storage device according to the above, comprising a fan disposed at the exhaust port.

4). The storage battery unit is arranged so that the left and right side surfaces thereof are separated from the inner wall of the outer case.
(I) a first flow path extending from the exhaust port through the left side of the storage battery unit to the exhaust port;
(Ii) a second flow path extending from the exhaust port to the exhaust port through the right side of the storage battery unit;
The above-described columnar power storage device, in which is formed.

5). The storage battery unit is disposed so that the front and back surfaces thereof are separated from the inner wall of the outer case.
(I) a third flow path extending from the exhaust port through the front side of the storage battery unit to the exhaust port;
(Ii) a fourth flow path extending from the exhaust port to the exhaust port through the right side of the storage battery unit;
The above-described columnar power storage device, in which is formed.

6). The columnar power storage device according to the above, wherein an upper surface of the outer case is configured by one or a plurality of inclined surfaces.

7). The sealed case includes a first case member and a second case member made of metal,
Each case member has a bathtub shape having a cup portion and a flange portion, and the ridge line portion of the cup portion and the ridge line portion to which the cup portion and the flange portion are connected are curved. Power storage device. The case member may be formed by deep drawing, and more specifically, a bottom surface corresponding to the bottom of the bathtub and four peripheral wall surfaces (tapered surfaces) formed by connecting from the bottom surface. You may have.

8). A pole power storage system comprising: the pole power storage device according to any one of the above; and a columnar member on which the pole power storage device is installed.

1 Pole storage device 20 Battery module 50 Storage battery unit 51, 52 Case member 51c, 52c Cup part 51f, 51f Flange part 70 Outer case 71 Front surface 72 Rear surface 73 Right side surface 74 Left side surface 75 Lid member 75a Exhaust port 76 Covering portion 78 Bottom surface Member 78a Intake port 80 Delivery device 90 Mounting unit 91 Mounting base 92 Receiving surfaces 93-1, 93-2 Support members 95-1, 95-2 Fixing members f1, f2, f3, f4 Flow path R1 Seal member Va Space

Claims (8)

A storage battery unit in which a secondary battery is housed in a sealed case;
An outer case forming a storage space in which the storage battery unit is disposed;
A gantry unit for attaching the storage battery unit and the outer case to the pillar member;
With
An intake port for taking outside air into the storage space),
An exhaust port for discharging the air in the storage space to the outside;
A cooling air flow path connecting the intake port and the exhaust port;
A pillar-shaped power storage device in which is formed. The air inlet is formed on the bottom surface of the outer case;
The exhaust port is formed on the upper side of the outer case,
The pole power storage device according to claim 1. further,
The pillar-shaped electrical storage apparatus of Claim 1 or 2 provided with the fan arrange | positioned at the said exhaust port. The storage battery unit is arranged so that the left and right side surfaces thereof are separated from the inner wall of the outer case.
(I) a first flow path extending from the exhaust port through the left side of the storage battery unit to the exhaust port;
(Ii) a second flow path extending from the exhaust port to the exhaust port through the right side of the storage battery unit;
The pillar-shaped electrical storage apparatus as described in any one of Claims 1-3 in which is formed. The storage battery unit is disposed so that the front and back surfaces thereof are separated from the inner wall of the outer case.
(I) a third flow path extending from the exhaust port through the front side of the storage battery unit to the exhaust port;
(Ii) a fourth flow path extending from the exhaust port to the exhaust port through the right side of the storage battery unit;
The pillar-shaped electrical storage apparatus as described in any one of Claims 1-4 in which is formed.   The columnar power storage device according to any one of claims 1 to 5, wherein an upper surface of the outer case is configured by one or a plurality of inclined surfaces. The sealed case includes a first case member and a second case member made of metal,
Each case member is a bathtub-shaped thing which has a cup part and a flange part, Comprising: The ridgeline part of a cup part and the ridgeline part which a cup part and a flange part connect are curved shape. The pole-shaped electrical storage apparatus as described in any one of these. The pole power storage device according to any one of claims 1 to 7,
A columnar member on which it is installed;
An on-pillar power storage system.