WO2015186343A1

WO2015186343A1 - Battery room

Info

Publication number: WO2015186343A1
Application number: PCT/JP2015/002771
Authority: WO
Inventors: 悠人増田; 直之舟田
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2014-06-06
Filing date: 2015-06-02
Publication date: 2015-12-10

Abstract

This battery room comprises a container (2), a plurality of storage batteries (3) provided inside the container (2), an air-conditioning device for cooling these storage batteries (3), and a cooling device (6) provided so as to traverse an external wall of the container (2). The cooling device (6) comprises a heat-exchanging element, an external air circulation fan, and internal air circulation fan. The plurality of storage batteries (3) are disposed in such a manner that the exhaust side of each is turned toward the container (2) wall surface, in an arrangement that follows a wall surface of the container (2) while being spaced from the wall surface. The cooling device (6) is disposed on the wall surface. Disposed inside the container (2) and spaced from the container (2) floor surface is a divider (7) for dividing the container (2) interior by connecting the container (2) wall surface and the storage batteries (3) located at both ends of the plurality of storage batteries (3) in the arrangement direction.

Description

Battery compartment

The present invention relates to cooling of a battery chamber containing a storage battery.

In recent years, the demand for electricity has increased significantly with the increase in the world population and the concentration of population in cities. On the other hand, in view of global environmental problems, there is a need to minimize the dependence on fossil energy and the burden on the environment.

For this reason, electric power companies are promoting the introduction of renewable energy such as solar and wind power. Improving power is an issue. In order to improve the shortage of supply and demand adjustment, the need for power storage devices is expected to increase.

In addition, it can be used for power supply during emergencies such as power outages and disasters in emerging countries, as well as for communication facilities such as data centers and mobile phone base stations in enterprises, and power backups during power outages at stores. The need for equipment is expected to expand globally.

In such a power storage device, it is necessary to keep the storage battery within a certain temperature range, and for the heat generation of the storage battery, the battery chamber in which many storage batteries are installed is cooled by an air conditioner such as an air conditioner.

On the other hand, as with storage batteries, in data centers with many servers that generate heat, an air conditioning machine room with air conditioners is installed adjacent to the server room, and the server room is partitioned by a hot aisle and cold aisle. (Cold Aisle) was completely partitioned (see, for example, Patent Document 1).

In addition, a hot aisle exhaust heat type air conditioning auxiliary device is provided to discharge a certain amount of air in the hot aisle to the outside, and the same amount of outside air is introduced into the hot aisle through a filter, and the air conditioner in the data center Was reducing the load.

JP 2013-109612 A

It is preferable to reduce the load on the air conditioner in the case of the battery room as in the data center of the conventional example. However, the battery room is usually a container, and it is not easy to provide an air conditioning machine room in which an air conditioner is installed adjacent to the battery room in the same manner as the data center. Furthermore, it is not easy to completely partition the battery chamber into a hot aisle and a cold aisle. Therefore, in the case of the battery chamber, it has been a problem to efficiently cool the storage battery and further easily reduce the load of the air conditioner.

Therefore, the present invention makes it possible to cool the storage battery efficiently and to easily reduce the load of the air conditioner that cools the battery chamber.

The battery chamber of the present invention includes a container, a plurality of storage batteries provided inside the container, an air conditioner for cooling the storage batteries, and a cooling device provided through the outer wall of the container. ing. The cooling device includes a heat exchange element, an outside air circulation fan, and an inside air circulation fan in a housing. The plurality of storage batteries are arranged along the wall surface of the container, are separated from the wall surface, and each has an exhaust side facing the wall surface of the container, and a cooling device is provided on the wall surface. Yes. Inside the container, partition plates that connect the storage batteries located at both ends of the plurality of storage batteries in the arrangement direction and the wall surfaces of the container and partition the interior of the container are provided apart from the floor surface of the container. This configuration achieves the initial purpose.

The battery chamber as described above can cool the storage battery efficiently and can reduce the load of the air conditioner by the cooling device.

That is, in the present invention, the air outside the battery room is taken in by the cooling device and is exchanged with the room air by the heat exchanger. Therefore, the filter is not provided as in the conventional example, and the low-temperature outdoor air is used. The suction temperature of the air conditioner can be lowered and the load on the air conditioner can be reduced.

Furthermore, by separating the partition plate from the floor surface of the container, by providing an opening below the partition plate, the wall surface of the container, the storage battery, and the exhaust of the storage battery flowing into the area partitioned by the partition plate more Since the low-temperature exhaust can be sucked into the air conditioner, the load on the air conditioner can be further reduced.

Also, by separating the above-mentioned area that partitions the exhaust side of the storage battery inside the container, the cool air blown out by the air conditioner can be efficiently used for cooling the storage battery.

FIG. 1 is a configuration diagram of a battery chamber according to Embodiment 1 of the present invention. FIG. 2 is an external perspective view with the lower part of the casing of the cooling device removed. FIG. 3 is an external perspective view with the upper part of the casing of the cooling device removed. FIG. 4 is an internal configuration diagram of the cooling device. FIG. 5 is a perspective view showing an internal configuration of the storage battery with a front cover opened. FIG. 6 is a plan sectional view showing an internal configuration of the battery chamber. 7 is a cross-sectional view taken along line AA in FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

(Embodiment)
In FIG. 1, a battery chamber 1 includes a container 2 having a substantially rectangular parallelepiped shape in appearance, a plurality of storage batteries 3 provided inside the container 2, and an indoor unit 4 and a container 2 as an air conditioner for cooling the storage batteries 3. The outdoor unit 5 provided on the outer wall of the container 2 and a plurality of cooling devices 6 provided so as to penetrate the wall surface on the long side of the container 2.

Here, the air conditioner connects the outdoor unit 5 and the indoor unit 4 with piping, for example, and the refrigerant sealed inside circulates between the outdoor unit 5 and the indoor unit 4, and uses the phase change of the refrigerant to change the indoor unit 4. Thus, the air inside the container 2 is cooled.

Further, the container 2 is provided with a door 2a, and a ventilation fan 8 and an air supply port 9 for measures against hydrogen that may be generated from the storage battery 3.

The plurality of storage batteries 3 are provided in two rows in parallel in an arrangement along the wall surface on the long side of the container 2 and separated from the wall surface. Each storage battery 3 has a surface on the exhaust side (the tip of the arrow in FIG. 5) directed to the long side wall surface of the container 2, and the exhaust side surface and the long side wall surface of the container 2 are connected to each other. Parallel. A plurality of cooling devices 6 (three on each surface in FIG. 1) are provided on the wall surface of the storage battery 3 facing the exhaust side.

The plurality of storage batteries 3 are not necessarily provided along the long-side wall surface of the container 2. For example, the air conditioner is provided on the long-side wall surface of the container 2, and the cooling device 6 is the container 2. When provided on the wall surface on the short side, it is preferable to provide the plurality of storage batteries 3 on the wall surface on the short side of the container 2. The plurality of storage batteries 3 are not necessarily arranged in parallel to the wall surface of the container 2, and the distance between each storage battery 3 and the wall surface of the container 2 may not be uniform. The plurality of storage batteries 3 are not necessarily arranged in two rows. For example, one row may be arranged along any wall surface of the container 2.

A partition plate 7 a that connects the long-side wall surface of the container 2 and the storage battery 3 positioned at both ends in the arrangement direction of each row and partitions the inside of the container 2 at both ends of each row of the storage batteries 3 is a floor of the container 2. It is provided apart from the surface 2b. Furthermore, a partition plate 7 b that connects the upper surface of the storage battery 3 and the ceiling surface of the container 2 and partitions the inside of the container 2 is provided. A hot aisle 25 (FIG. 6) surrounded and partitioned by the wall surface on the long side of the container 2, the storage battery 3, and the partition plate 7 (7 a, 7 b) is formed.

2 to 4, the cooling device 6 includes a heat exchange element 15, an outside air circulation fan 16, and an inside air circulation fan 19 in a housing 6a. As shown in FIGS. The fan 16 forms an outside air circulation air passage 22 from the outside air suction port 17 to the outside air exhaust port 18, and as shown in FIGS. 3 and 4, the inside air circulation fan 19 turns the inside air suction port 20 into the inside air exhaust port 21. The inside air circulation air passage 23 is formed.

Further, as shown in FIG. 5, the storage battery 3 includes a power conditioner system 11 (PCS: Power Conditioning System), a control unit 12 (BMU: Battery Management Unit), a storage battery pack 13, a cooling unit in the cabinet 10 in order from the top. An axial fan unit 14 is provided, and an opening 10 a is provided in the front door of the cabinet 10.

In the above configuration, the operation that is the feature of the present application, that is, the operation of reducing the load of the air conditioner that cools the inside of the container 2 by the cooling device 6 will be described with reference to FIGS.

As shown in FIG. 6, the cold air blown out from the indoor unit 4 is blown out toward the center of the container 2 and between the rows of the storage batteries 3. That is, the cold aisle 24 is a cooled space between the rows of the storage batteries 3.

The cold air in the cold aisle 24 is sucked into the storage battery 3 from the opening 10a provided in the front door of the cabinet 10 shown in FIG. 5 by driving the cooling axial fan unit 14 in the storage battery 3, as shown in FIG. It passes through the storage battery 3 as indicated by the arrow, and cools the cabinet 10 in which the storage battery pack 13 and the like are stored.

The cold air that has been heated through the storage battery 3 becomes warm air and flows into the hot aisle 25 described above. The warm air that has flowed into the hot aisle 25 is sucked by the driving of the internal air circulation fan 19 from the internal air suction port 20 provided in the upper part of the cooling device 6 shown in FIG. The element 15 exchanges heat with the outside air passing through the outside air circulation air passage 22 and cools it to near the outside air temperature.

The warm air cooled by the cooling device 6 in the hot aisle 25 as described above returns to the cold aisle 24 from the lower opening of the partition plate 7a and is sucked into the indoor unit 4.

At this time, the warm air sucked into the indoor unit 4 has a temperature lower than the warm air that has passed through the storage battery 3 and has flowed into the hot aisle 25, and the cooling device 6 can reduce the load on the air conditioner.

Here, the major difference from the data center of the conventional example is that the indoor unit 4 as a part of the air conditioner is provided in the cold aisle 24, and the air in the hot aisle 25 is not directly sucked in, but is cold. The point is that the air is sucked through the aisle 24. However, warm air from the hot aisle 25 flows in the area of the cold aisle 24 that passes therethrough (in fact, the hatched portion in FIG. 7). In fact, the hot aisle 25a is installed in the cold aisle 24 without physical partitioning. It can be said that it has formed.

The configuration for forming the hot aisle 25a without a physical partition in the cold aisle 24 is also a feature of the present embodiment, and will be described below.

As shown in FIG. 4, the cooling device 6 has an outside air inlet 17 at the lower part and an inside air inlet 20 at the upper part. Therefore, the cooling device 6 uses the convection phenomenon of air, and sucks the outside air having a lower temperature from the lower portion of the cooling device 6 and the warm air in the hot aisle 25 having a higher temperature from the upper portion of the cooling device 6. Thus, the warm air flowing into the hot aisle 25 can be efficiently cooled.

Furthermore, since the space between the lower end of the partition plate 7a and the floor surface 2b of the container 2 is spaced, warm air having a lower temperature in the hot aisle 25 flows into the cold aisle 24 and is sucked into the indoor unit 4.

Thereby, the difference between the suction temperature and the blowout temperature of the indoor unit 4 is reduced, and the load on the air conditioner composed of the indoor unit 4 and the outdoor unit 5 can be reduced.

In the present embodiment, since the plurality of storage batteries 3 are arranged so that the adjacent storage batteries 3 are in contact with each other in each row, there is almost no gap between the adjacent storage batteries 3. Therefore, it is difficult for the warm air in the hot aisle 25 to flow into the cold aisle 24 through the gap between the storage batteries 3. Therefore, the warm air in the hot aisle 25 can be efficiently discharged into the cold aisle 24 from the opening below the partition plate 7a.

In the present embodiment, the air-conditioning apparatus has been described as an example of a wall hanging, but it may be placed on the floor as long as it is a lower suction having a suction port in the lower part and an upper outlet having a blower outlet in the upper part, and there is no outdoor unit An integrated package air conditioner may be used.

Further, when the storage battery cabinet is high and there is almost no distance from the ceiling surface of the container 2, the partition plate 7b may not be used.

As described above, even if the indoor unit 4 of the air conditioner is provided in the container 2, the hot aisle 25a can be formed in the cold aisle 24 without a physical partition, and the storage battery 3 can be efficiently cooled. In addition, the cooling device 6 can reduce the load of the air conditioner by using outside air without directly taking in outside air.

In the present invention, since the heating element can be efficiently cooled without providing an air conditioning machine room in which an air conditioner is installed, it is useful when a large number of heating elements such as storage batteries are stored in a container such as a container or a simple building such as a prefab.

DESCRIPTION OF SYMBOLS 1 Battery chamber 2 Container 2a Door 2b Floor 3 Storage battery 4 Indoor unit 5 Outdoor unit 6

Cooling device

7, 7a, 7b Partition plate 8 Ventilation fan 9 Air supply port 10 Cabinet 10a Opening 11 Power conditioner system 12 Control unit 13 Storage battery pack 14 Cooling axial fan unit 15 Heat exchange element 16 Outside air circulation fan 17 Outside air suction port 18 Outside air exhaust port 19 Inside air circulation fan 20 Inside air suction port 21 Inside air exhaust port 22 Outside air circulation air passage 23 Inside air circulation air passage 24 Cold door 25 Hot Isle 25a Hot Isle

Claims

A container,
A plurality of storage batteries provided inside the container;
An air conditioner for cooling those storage batteries,
A cooling device provided through the outer wall of the container,
The cooling device includes a heat exchange element, an outside air circulation fan, and an inside air circulation fan in a housing,
The plurality of storage batteries are arranged along the wall surface of the container, spaced apart from the wall surface, and each having an exhaust side facing the wall surface of the container. The cooling device is provided;
In the inside of the container, a partition plate that connects the storage batteries located at both ends of the plurality of storage batteries in the arrangement direction and the wall surfaces of the container and partitions the interior of the container is separated from the floor surface of the container. A battery chamber characterized by being provided.
The battery room according to claim 1, wherein the air conditioner has a suction port at a lower portion and an outlet at an upper portion.
The battery chamber according to claim 2, wherein the cooling device has an outside air inlet at a lower portion and an inside air inlet at an upper portion.
The battery chamber according to claim 1, wherein the cooling device has an outside air inlet at a lower portion and an inside air inlet at an upper portion.