Stationary battery device

Abstract

This provides a simple method to improve the seismic resistance of stationary battery devices to suit the installation location. [Solution] A stationary battery device 100 includes a multi-tiered stacked battery pack 20 and a support frame 10 equipped with columns 11 provided at the four corners of the battery pack 20, wherein each column 11 is hollow and has liquid 30 sealed in its internal space.

Description

Technical Field

[0004] , , ,

[0006] , , , ,

[0005] , , , ,

[0007] , , ,

[0001] The present disclosure relates to the structure of a stationary battery device equipped with a plurality of battery packs.

Background Art

[0002] Patent Document 1 discloses a fuel cell system in which a water tank is disposed above a blower, and the vibration of the blower is reduced by the sloshing of water in the water tank when the blower operates.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0008] This configuration allows for the improvement of the seismic resistance of the stationary battery device by changing its natural frequency to suit the installation location through a simple method of adjusting the water level of the liquid sealed in the column. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view of the stationary battery device according to the embodiment. [Figure 2] This is the seismic response spectrum at the upper end of the column of the stationary battery device according to the embodiment. [Modes for carrying out the invention]

[0010] The stationary battery device 100 of this embodiment will be described below with reference to the drawings. As shown in Figure 1, the stationary battery device 100 consists of a multi-tiered stacked battery pack 20 and a support frame 10.

[0011] As shown in Figure 1, the battery pack 20 is a rectangular parallelepiped and stacked in multiple layers. In the stationary battery device 100, the battery pack 20 is stacked in three layers. The support frame 10 is equipped with hollow columns 11. The columns 11 are cylindrical metal longitudinal members and are positioned at the four corners of the stacked battery pack 20 to support the battery pack 20.

[0012] The internal space of the column 11 is filled with liquid 30. The liquid 30 may be water or oil. By changing the water level of the liquid 30 filled in the column 11, the natural frequency of the stationary battery device 100 can be changed.

[0013] Figure 2 shows the seismic response spectrum at the upper end of the column 11 of the stationary battery device 100. The solid line in the figure shows the response acceleration when the liquid 30 is not sealed inside, and the dashed line shows the response acceleration when the liquid 30 is sealed inside.

[0014] As shown by the solid line, when the liquid 30 is not sealed inside, the natural frequency of the stationary battery device 100 is f0, which is close to the frequency of an earthquake, and a large response acceleration occurs. On the other hand, when the liquid 30 is sealed inside, as shown by the dashed line, the natural frequency of the stationary battery device 100 decreases to f1, which is far from the frequency of an earthquake. As a result, the response acceleration is lower compared to when the liquid 30 is not present.

[0015] The natural frequency of the stationary battery device 100 changes with the water level of the liquid 30. The higher the water level of the liquid 30, the lower the natural frequency. Also, the frequency of earthquakes varies depending on the ground conditions. Therefore, by adjusting the water level of the liquid 30 according to the ground conditions at the installation site of the stationary battery device 100, the natural frequency of the stationary battery device 100 can be moved away from the frequency of earthquakes, thereby reducing the response acceleration. This makes it possible to improve the seismic resistance of the stationary battery device 100 to suit the installation site.

[0016] As explained above, the stationary battery device 100 can improve its seismic resistance by a simple method of adjusting the water level of the liquid 30 sealed in the column 11.

[0017] In the above description, the column 11 was described as being cylindrical, but it is not limited to this, and may be a hollow member having a square annular cross-section, or a hollow member having a polygonal annular cross-section.

[0018] Furthermore, the support frame 10 may include other members besides the columns 11, such as beams connecting the columns 11. Also, the columns 11 and beams may be made of iron or aluminum. [Explanation of Symbols]

[0019] 10 support frames, 11 columns, 20 battery packs, 30 liquids, 100 stationary battery devices.

Claims

[Claim 1] A multi-layered battery pack, A stationary battery device comprising a support frame having columns provided at the four corners of the battery pack, Each of the aforementioned columns is a hollow body with a liquid sealed inside. A stationary battery device characterized by the following.

Images