CN-122025986-A - Power storage device

CN122025986ACN 122025986 ACN122025986 ACN 122025986ACN-122025986-A

Abstract

The present disclosure provides an electric storage device including a battery pack provided with a relief valve, a pipe connected to the battery pack for flowing a refrigerant for cooling the battery pack, a wire connected to the battery pack, and a bracket supporting at least one of the pipe and the wire. The bracket is fixed to the battery pack adjacent to the relief valve, and a shielding plate is provided between the relief valve and at least one of a pipe and a wiring fixed to the bracket to shield gas discharged from the relief valve.

Inventors

Hobai Osamu

Assignees

丰田自动车株式会社

Dates

Publication Date: 20260512
Application Date: 20250827
Priority Date: 20241111

Claims (4)

1. A power storage device is provided with: The battery pack is provided with an overflow valve; Piping connected to the battery pack for flowing a refrigerant for cooling the battery pack; Wiring connected to the battery pack, and A bracket for supporting at least one of the piping and the wiring, The bracket is fixed to the battery pack adjacent to the overflow valve, The bracket is provided with a shielding plate which is positioned between the relief valve and at least one of the piping and the wiring fixed to the bracket, and shields the gas discharged from the relief valve.
2. The power storage device according to claim 1, wherein, Both of the piping and the wiring are fixed to the bracket, The shielding plate is provided with a step part protruding towards the overflow valve, One of the piping and the wiring is disposed below the step portion, and the other of the piping and the wiring is disposed above the step portion.
3. The power storage device according to claim 2, wherein, The shielding plate is provided at a lower side than the relief valve, and has a bottom plate portion protruding from a lower end toward the relief valve.
4. The power storage device according to any one of claims 1 to 3, wherein, The battery pack includes a substantially rectangular parallelepiped battery module and a protruding portion protruding upward at one end of the battery module, The plurality of battery packs are stacked in the vertical direction and accommodated in the case so that the protruding portions are arranged outside in a staggered manner.

Description

Power storage device Technical Field The present disclosure relates to an electric storage device. Background Japanese patent application laid-open No. 2001-015090 discloses a stationary power storage device in which a plurality of battery packs are stacked in the vertical direction and housed in a box-shaped case. Disclosure of Invention The inventors have developed an electric storage device in which a relief valve is provided in a battery pack. Here, around the battery pack, a pipe for flowing a refrigerant for cooling the battery pack and a wiring connected to the battery pack are provided. Therefore, the piping and wiring located near the relief valve may be damaged by the high-temperature gas discharged from the relief valve. The present disclosure has been made in view of such circumstances, and provides an electric storage device capable of suppressing damage to piping or wiring located near a relief valve due to gas discharged from the relief valve. An electric storage device according to an aspect of the present disclosure includes: The battery pack is provided with an overflow valve; Piping connected to the battery pack for flowing a refrigerant for cooling the battery pack; Wiring connected to the battery pack, and A bracket for supporting at least one of the piping and the wiring, The bracket is fixed to the battery pack adjacent to the overflow valve, The bracket is provided with a shielding plate which is positioned between the relief valve and at least one of the piping and the wiring fixed to the bracket, and shields the gas discharged from the relief valve. In the power storage device according to the present disclosure, a bracket that supports at least one of a pipe and a wire is fixed to a battery pack so as to be adjacent to a relief valve, and a shielding plate that is positioned between the relief valve and at least one of a pipe and a wire fixed to the bracket and shields gas discharged from the relief valve is provided to the bracket. With this configuration, damage to at least one of the piping and wiring located near the relief valve due to the gas discharged from the relief valve can be suppressed. The bracket may be fixed with both the pipe and the wire, the shielding plate may have a stepped portion protruding toward the relief valve, one of the pipe and the wire may be disposed below the stepped portion, and the other of the pipe and the wire may be disposed above the stepped portion. The shielding plate may be provided below the relief valve, and may include a bottom plate portion protruding from a lower end toward the relief valve. The battery pack may include a substantially rectangular parallelepiped battery module and a protruding portion protruding upward at one end of the battery module, and the plurality of battery packs may be housed in the case so as to overlap in the vertical direction such that the protruding portions are arranged outside in a staggered manner. According to the present disclosure, it is possible to provide an electric storage device that can suppress damage to piping or wiring located near a relief valve due to gas discharged from the relief valve. Drawings Features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like reference numerals denote like elements, and in which: fig. 1 is a cross-sectional view showing the overall configuration of an electric storage device according to a first embodiment; Fig. 2 is a perspective view of the battery pack 20; fig. 3 is a perspective view showing a bracket 40 in the power storage device according to the first embodiment; FIG. 4 is an XY cross-sectional view of the carriage 40, and Fig. 5 is a sectional view based on the V-V section line in fig. 4. Detailed Description Hereinafter, specific embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. However, the present disclosure is not limited to the following embodiments. In order to make the description clear, the following description and drawings are appropriately simplified. First embodiment Integral structure of power storage device First, the overall structure of the power storage device according to the first embodiment will be described with reference to fig. 1. Fig. 1 is a cross-sectional view showing the overall configuration of an electric storage device according to a first embodiment. The right-handed XYZ rectangular coordinates shown in fig. 1 are, of course, merely for convenience in explaining the positional relationship of the constituent elements. In fig. 1, the positive Z-axis direction is generally the vertical upward direction, the XY plane is the horizontal plane, and the directions are common to the drawings. The power storage device according to the present embodiment is, for example, a power storage device that can be installed outdoors. As shown i