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KR-20260063262-A - BATTERY MANAGEMENT SYSTEM HAVING PREVENTING FIRE SPREAD DEVICE

KR20260063262AKR 20260063262 AKR20260063262 AKR 20260063262AKR-20260063262-A

Abstract

A battery management system equipped with a fire spread prevention device according to one embodiment of the present invention comprises a station having a plurality of spaced-apart storage spaces in which a battery to be charged is stored, with the front and rear sides communicating internally; a door for opening and closing the rear side of the storage space of the station; and an isolation section including a pouch disposed at the lower rear side of the station for receiving the battery to be charged, wherein the front bottom surface of the storage space is formed higher than the rear bottom surface of the storage space, so that when the door is opened, the battery to be charged falls to the rear side of the station, and the fallen battery to be charged is received in the pouch. A battery management system equipped with a fire spread prevention device according to one embodiment of the present invention has the effect of minimizing damage to the station and other batteries to be charged stored in the station caused by thermal runaway when the temperature of the battery to be charged or the storage space containing the battery to be charged rises, by discharging the battery to be charged to the rear of the station and separating the discharged battery into a separate space within a pouch.

Inventors

  • 유기봉
  • 서지승
  • 권기정
  • 김현욱

Assignees

  • 주식회사 씨티엔에스

Dates

Publication Date
20260507
Application Date
20241030

Claims (6)

  1. A station having multiple spaced-apart storage compartments for storing batteries to be charged, with the front and rear connected internally; A door for opening and closing the rear of the storage space of the above station; It includes an isolation section positioned at the lower rear of the above station and containing a pouch that accommodates the battery to be charged, and A battery management system equipped with a fire spread prevention device, characterized in that the front bottom surface of the storage space is formed higher than the rear bottom surface of the storage space, so that when the door is opened, the battery to be charged falls to the rear of the station, and the fallen battery to be charged is received in the pouch.
  2. In paragraph 1, The above isolation part A battery management system equipped with a fire spread prevention device, comprising an opening/closing frame rotatably disposed on the rear of the station spaced apart from the ground, wherein the pouch is connected to the opening/closing frame and opens an input port in the upward direction when the opening/closing frame is rotated.
  3. In paragraph 2, A protective housing that encloses the isolation unit is disposed on the rear of the above station, and A battery management system equipped with a fire spread prevention device, characterized in that the protective housing has a cooling water inlet disposed therein for introducing cooling water into the pouch.
  4. In paragraph 3, A battery management system equipped with a fire spread prevention device, characterized in that a motor for rotating the opening and closing frame is disposed on one side of the opening and closing frame.
  5. In paragraph 4, The above-mentioned cooling water inlet consists of a water tank in which the cooling water is stored, a pump connected to the water tank, and a cooling water inlet pipe connected to the pump. A battery-side charging terminal is provided on the above-mentioned battery to be charged, and A magnet is placed on the side of the battery charging terminal, and A battery management system equipped with a fire spread prevention device, characterized in that a station-side charging terminal electrically connected to the battery-side charging terminal is disposed on the door, a metal pad is disposed on the side of the station-side charging terminal, and a coil is disposed adjacent to the metal pad that generates a repulsive force to the magnet when power is applied.
  6. In paragraph 5, At the above station A temperature sensor for detecting the temperature of the storage space and an impedance sensor for detecting the impedance of the battery to be charged are disposed therein, and a door detection sensor for detecting the opening and closing of the door is disposed on the door. The above temperature sensor, impedance sensor, and door detection sensor are connected to the control unit. The above control unit is connected to the motor, pump, and coil A battery management system equipped with a fire spread prevention device, characterized in that when a value sensed by the temperature sensor is greater than or equal to a reference value or when a value sensed by the impedance sensor is less than or equal to a reference value, power is applied to at least one of the coil and the motor, and when power is applied to the motor, the control unit applies power to the pump.

Description

Battery management system having a fire spread prevention device The present invention relates to a battery replacement station, and more specifically, to a battery management system equipped with an internal fire spread prevention device. As the whole world focuses on expanding the adoption of electric vehicles to achieve carbon neutrality early, the number of electric vehicles is expected to increase exponentially by 2030, when the complete phase-out of internal combustion engines is set to begin in earnest. Consequently, the amount of 'used batteries,' or waste batteries, emitted from electric vehicles is also expected to increase simultaneously. The Korea Environment Institute predicts that the number of waste batteries will surge from 2,355 in 2023 to 8,321 in 2025, 29,508 in 2027, and 78,981 in 2029. These waste batteries maintain 70 to 80% of the efficiency of new vehicle batteries, so they can be used in energy storage systems (ESS) other than electric vehicles and can be reused in mobility sectors such as electric motorcycles and electric bicycles through a charge replacement method. However, before reuse, thermal runaway may occur due to various causes such as damage to the separator inside the waste battery and evaporation of the internal electrolyte due to mechanical damage, so safer management measures are required. FIG. 1 is a perspective view of a battery management system equipped with a fire spread prevention device according to one embodiment of the present invention. FIG. 2 is a side cross-sectional view of a battery management system equipped with a fire spread prevention device shown in FIG. 1. Figure 3 is an operation diagram of a battery management system equipped with a fire spread prevention device shown in Figure 1. FIG. 4 is a cross-sectional view of a battery management system equipped with a fire spread prevention device shown in FIG. 1. FIG. 5 is a magnified view of a battery to be charged and a charging terminal of a battery management system equipped with a fire spread prevention device according to one embodiment of the present invention. FIG. 6 is a control block diagram of a battery management system equipped with a fire spread prevention device according to FIG. 1. Preferred embodiments according to the present invention will be described in detail with reference to the attached drawings, provided that identical or similar components are given the same reference number regardless of the drawing symbols, and redundant descriptions thereof will be omitted. Furthermore, in describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such descriptions could obscure the essence of the invention. Additionally, it should be noted that the attached drawings are intended only to facilitate an understanding of the concept of the present invention and should not be interpreted as limiting the concept of the present invention. Hereinafter, a battery management system equipped with a fire spread prevention device according to the present invention will be described in detail with reference to the drawings. Referring to FIG. 1 and FIG. 2, which are perspective and side cross-sectional views of a battery management system equipped with a fire spread prevention device according to one embodiment of the present invention, the battery management system equipped with a fire spread prevention device is composed of a station (100) and an isolation unit (200). As shown in FIGS. 1 and 2, the station (100) has a plurality of storage spaces (110) for storing batteries (10) to be charged, and may simply store batteries (10) to be charged, or may be configured to allow charging after storage as in the present embodiment. The storage space (110) can be formed in various shapes, but it is preferable that each storage space (110) be configured independently without being connected to each other, as shown in FIGS. 1 and 2, so that if a fire occurs in one battery to be charged, it does not affect other batteries to be charged. A door (120) is formed on the rear of the storage space (110) of the station (100) to open and close the storage space (110), and an isolation section (200) composed of a pouch (210) that accommodates a battery (10) to be charged that is discharged to the rear of the station (100) when the door (120) is opened is disposed at the lower rear of the station (100). The door (120) is opened when the temperature of the storage space (110) rises above a predetermined temperature, or when the temperature of the battery to be charged (10) is above a reference value or when the impedance is below a reference value, thereby discharging the battery to be charged (10) within the storage space (110). As shown in FIG. 2, the front bottom surface of the storage space (110) is formed higher than the rear bottom surface of the storage space (110), so that when the door (120) is opened, the battery to be charged (10) falls to the rear of the stati