KR-102963461-B1 - ENERGY STORAGE SYSTEM

Abstract

The present invention relates to an energy storage device comprising a rack frame, a plurality of battery modules accommodated inside the rack frame, a discharge member disposed on one side of the rack frame and discharge a battery module from the rack frame, a plurality of fixing members fixed to the rack frame and configured to be breakable as the battery module is discharged from the rack frame, a transfer member disposed on the other side of the rack frame and transporting a battery module discharged from the rack frame, and a fire extinguishing member spraying a fire extinguishing substance onto a battery module transported by the transfer member.

Inventors

• 황유식
• 위난구
• 송은기
• 백재환
• 엄무용

Assignees

• 주식회사 그랜드썬기술단

Dates

Publication Date

20260513

Application Date

20260113

Claims (20)

1. Rack frame; A plurality of battery modules accommodated inside the above rack frame; A discharge member disposed on one side of the rack frame and discharging the battery module from the rack frame; A plurality of fixing members that fix the battery module to the rack frame and are configured to be breakable as the battery module is discharged from the rack frame; A transfer member disposed on the other side of the rack frame and transferring the battery module discharged from the rack frame; and An energy storage device characterized by including a fire extinguishing member that sprays a fire extinguishing substance onto the battery module transported by the above-mentioned transport member.
2. In paragraph 1, The above discharge member is, A discharge frame positioned facing the above rack frame along a first direction; A discharge body movably connected to the discharge frame in a direction intersecting the first direction; and An energy storage device characterized by including a pusher that is movably connected to the discharge body along the first direction and presses the battery module in the first direction.
3. In paragraph 2, An energy storage device characterized by the above-mentioned pusher including a plurality of pusher rods connected to be sequentially slide-movable along the first direction.
4. In paragraph 3, The above pusher further includes a pressure plate connected to the pusher rod and in contact with the battery module. An energy storage device characterized in that the cross-sectional area of the above-mentioned pressure plate is larger than the cross-sectional area of the above-mentioned pusher rod and smaller than the cross-sectional area of the above-mentioned battery module.
5. In paragraph 2, Each of the above-mentioned fixing members is, A fixing bolt that penetrates the rack frame along a second direction intersecting the first direction and is coupled to the battery module; and An energy storage device characterized by including a bolt notch formed concavely on the inner side of the above-mentioned fixing bolt.
6. In paragraph 5, Each of the above-mentioned fixing members includes a pair of the above-mentioned fixing bolts, and An energy storage device characterized in that a pair of the above-mentioned fixing bolts are arranged facing each other along the second direction with the battery module in between.
7. In paragraph 5, An energy storage device characterized by the above-mentioned bolt notch extending along the circumferential direction centered on the central axis of the above-mentioned fixing bolt.
8. In paragraph 5, An energy storage device characterized by the above bolt notch being positioned between the above rack frame and the above battery module.
9. In paragraph 2, The above rack frame is, Body frame; and It includes a plurality of support frames connected to the body frame and supporting each of the battery modules; Each of the above support frames is, A bottom plate positioned to face the bottom surface of the battery module; and An energy storage device characterized by including one or more bottom rollers rotatably connected to the bottom plate and in contact with the bottom surface of the battery module.
10. In Paragraph 9, Each of the above support frames is, A pair of side plates positioned facing the side of the battery module; and An energy storage device characterized by further including a plurality of side rollers rotatably connected to the side plate and in contact with the side of the battery module.
11. In Paragraph 10, A pair of the above-mentioned side plates are arranged facing each other along a second direction intersecting the first direction with the battery module in between, and An energy storage device characterized by having one or more side rollers connected to each of the above-mentioned side plates.
12. In paragraph 2, The above transfer member is, A transfer frame spaced apart from the rack frame in the first direction; and An energy storage device characterized by including a transfer tray that is movably connected to the transfer frame in a direction intersecting the first direction and on which the battery module discharged from the rack frame is placed.
13. In Paragraph 12, An energy storage device characterized by further including a transfer member connected to the transfer tray and a control member for controlling the position of the battery module seated on the transfer tray.
14. In Paragraph 13, An energy storage device characterized by including a first adjusting member that is rotatably connected to the transfer tray and transfers the battery module in the first direction.
15. In Paragraph 14, An energy storage device characterized in that the travel distance of the pusher in the first direction is smaller than the length of the rack frame in the first direction.
16. In Paragraph 14, An energy storage device characterized by further including a second control member that is rotatably connected to the transfer tray and transfers the battery module in a second direction intersecting the first direction.
17. In paragraph 2, A plurality of busbars electrically connecting adjacent battery modules; and An energy storage device characterized by further including a busbar notch formed concavely on the inner side of the busbar.
18. In Paragraph 17, The above busbar is, A first end connected to any one of the adjacent battery modules; and A second end portion that is spaced apart from the first end portion in a direction intersecting the first direction and connected to the other one of the adjacent battery modules; An energy storage device characterized by the above-mentioned busbar notch being positioned between the first end and the second end.
19. In Paragraph 18, An energy storage device characterized in that the above-mentioned busbar notches are provided in pairs, and each of the above-mentioned busbar notches is arranged to face each other along the first direction with the different battery modules.
20. In any one of paragraphs 1 through 19, A detection member for detecting a fire generated from the above battery module; and An energy storage device characterized by further including a control member that controls the operation of the discharge member, the transfer member, and the extinguishing member based on data detected from the sensing member.

Description

Energy Storage System The present invention relates to an energy storage device, and more specifically, to an energy storage device having a rack structure accommodating a plurality of battery modules and having a fire response function capable of isolating and extinguishing a battery module that has caught fire. An Energy Storage System (ESS) is a system that stores and manages energy to enable efficient use. These systems are primarily utilized in power plants, transmission and distribution facilities, homes, factories, and businesses. They store generated electricity through the power grid and supply the pre-stored electricity when it is required, thereby increasing energy efficiency. In particular, energy storage devices can store electricity generated through renewable energy sources such as solar power or wind power, in addition to electricity generated through conventional thermal or nuclear power generation, which helps to suppress peak electricity usage depending on the season or time of day, facilitates the response to power supply crises, and helps improve power quality. Energy storage devices are vulnerable to fire as multiple battery modules are densely packed within a limited space. For example, if a fire occurs in a single battery module, there is a problem in that the fire can easily spread to other adjacent battery modules. FIG. 1 is a perspective view schematically showing the configuration of an energy storage device according to one embodiment of the present invention. FIG. 2 is a perspective view showing the configuration of an energy storage device according to one embodiment of the present invention at a different time from FIG. 1. FIG. 3 is a side view schematically showing the configuration of an energy storage device according to one embodiment of the present invention. FIG. 4 is a side view schematically showing the configuration of a rack frame and a battery module according to one embodiment of the present invention. FIG. 5 is a front view schematically showing the configuration of a rack frame and a battery module according to one embodiment of the present invention. FIG. 6 is a side view schematically showing the configuration of a discharge member according to one embodiment of the present invention. FIG. 7 is a diagram schematically showing the operating state of a discharge member according to one embodiment of the present invention. FIG. 8 is a front view schematically showing the operating state of a discharge member according to one embodiment of the present invention. FIG. 9 is a plan view schematically showing the installation state of a fixing member according to one embodiment of the present invention. FIG. 10 is an enlarged view schematically showing the installation state of a fixing member according to one embodiment of the present invention. FIG. 11 is a diagram schematically showing the configuration of a fixing member according to one embodiment of the present invention. FIG. 12 is a front view schematically showing the configuration of a busbar and a busbar notch according to one embodiment of the present invention. FIG. 13 is a side view schematically showing the configuration of a busbar and a busbar notch according to one embodiment of the invention. FIG. 14 is a perspective view schematically showing the configuration of a conveying member and a extinguishing member according to one embodiment of the present invention. FIG. 15 is a block diagram schematically showing the configuration of a sensing member and a control member according to one embodiment of the present invention. FIGS. 16 to 23 are diagrams schematically illustrating the operation process of an energy storage device according to one embodiment of the present invention. FIG. 24 is a front view schematically showing the configuration of a rack frame and a battery module according to another embodiment of the present invention. FIG. 25 is a side view schematically showing the configuration of a bottom roller according to another embodiment of the present invention. FIG. 26 is a diagram schematically showing the operating state of a bottom roller according to another embodiment of the present invention. FIG. 27 is a plan view schematically showing the configuration of a side roller according to another embodiment of the present invention. FIG. 28 is a diagram schematically showing the operating state of a side roller according to another embodiment of the present invention. FIG. 29 is a perspective view schematically showing the configuration of a transfer member according to another embodiment of the present invention. FIG. 30 is a side view schematically showing the configuration of a first adjusting member according to another embodiment of the present invention. FIG. 31 is a side view schematically showing the configuration of a second adjusting member according to another embodiment of the present invention. Preferred embodiments of the present invention will be described in detail below wi