Door and energy storage system with same

Abstract

The present disclosure relates to a door and an energy storage system having the same, and in particular, to a door for an energy storage system, the door comprising: a first door frame; a second door frame facing the first door frame; a door channel between the first door frame and the second door frame; an inlet aperture through the first door frame and configured to allow flame or gas to be introduced into the door passage; a discharge hole passing through the second door frame and configured to allow flame or gas to be discharged from the door passage; and a blocking member facing the discharge hole and configured to block the passage of the flame discharged from the discharge hole. According to the embodiment of the present disclosure, by allowing the gas to be discharged to the outside of the cabinet while blocking the flame from being discharged to the outside of the cabinet, it is possible to prevent the spread of a fire due to the outflow of the flame.

Description

TECHNICAL FIELD

[0001] Aspects of embodiments of the present disclosure relate to a door and an energy storage system having the same. BACKGROUND

[0002] Generally, an energy storage system (ESS) is a device capable of storing surplus power (e.g., excess power generated by using renewable energy). The ESS can be configured by installing a plurality of battery modules in a rack and accommodating a plurality of racks in a container. The battery module can be constructed by assembling a plurality of secondary batteries electrically connected to each other in various structures.

[0003] The above information is presented as background information only to assist with an understanding of the present disclosure. No determination has been made, and no assertion is made, as to whether aspects described in the above information could be applicable as prior art with regard to the present disclosure. SUMMARY

[0004] Embodiments of the present disclosure provide a door and an energy storage system having the same, the door being configured to reduce damage caused by a flame when a battery is on fire.

[0005] These and other aspects and features of the present disclosure will be described in or be apparent from the following description of some embodiments of the present disclosure.

[0006] According to an embodiment of the present disclosure, a door includes a first door frame, a second door frame facing the first door frame, a door passage between the first door frame and the second door frame, an inlet hole passing through the first door frame and configured to allow a flame or gas to be introduced into the door passage, a discharge hole passing through the second door frame and configured to allow the flame or gas to be discharged from the door passage, and a blocking member facing the discharge hole and configured to block the flame discharged from the discharge hole from passing through.

[0007] The door passage can have a first inlet end portion and a second inlet end portion spaced apart from each other. The inlet hole can include a first inlet hole connected to the first inlet end portion and a second inlet hole connected to the second inlet end portion.

[0008] The first inlet end portion and the second inlet end portion can be spaced apart from each other in a direction crossing a direction in which the inlet hole passes through the first door frame.

[0009] The first inlet end portion and the second inlet end portion can be spaced apart from each other in a direction parallel to the first door frame.

[0010] The first inlet hole can include a first upper inlet hole, a first lower inlet hole below the first upper inlet hole, and a first middle inlet hole between the first upper inlet hole and the first lower inlet hole.

[0011] The first upper inlet hole, the first lower inlet hole, and the first middle inlet hole can be separated from each other.

[0012] The second inlet holes can include a second upper inlet hole, a second lower inlet hole below the second upper inlet hole, and a second middle inlet hole between the second upper inlet hole and the second lower inlet hole.

[0013] The second upper inlet hole, the second lower inlet hole, and the second middle inlet hole can be separated from each other.

[0014] The discharge hole can be offset from the first inlet hole and the second inlet hole.

[0015] The discharge hole can be between the first inlet hole and the second inlet hole.

[0016] A ratio of an area of the inlet holes to an area of the discharge hole can be in a range between 50% and 80%.

[0017] The blocking member can include a blocking filter having a plurality of meshes and facing the discharge hole, and a fixing bracket configured to fix the blocking filter to the second door frame.

[0018] The door can further include a cover facing the blocking member and configured to guide discharge of gas that has passed through the blocking member.

[0019] The cover can include a cover body facing the blocking member and fixed to the second door frame, and a guide hole passing through the cover body and connected to the discharge hole.

[0020] The guide hole can face upward or downward.

[0021] The guide hole can be provided as a pair of guide holes, one of which can face upward and the other of which can face downward.

[0022] According to another embodiment of the disclosure, an energy storage system includes a cabinet, a plurality of battery modules inside the cabinet, and a door configured to open or close an internal space in the cabinet. The door includes a first door frame movably connected to the cabinet, a second door frame facing the first door frame, a door passage between the first door frame and the second door frame, an inlet hole passing through the first door frame and configured to allow a flame or gas to be introduced into the door passage, a discharge hole passing through the second door frame and configured to allow the flame or gas to be discharged from the door passage, and a blocking member facing the discharge hole and configured to block the flame discharged from the discharge hole from passing through.

[0023] The door can face a side surface of the battery modules.

[0024] The energy storage system can further include a first passage facing the exhaust port of the battery module and can have a first end portion and a second end portion spaced apart from each other in a first direction, a guide member in the first passage and configured to guide the flame or gas discharged from the exhaust port in the first direction, a second passage inside the cabinet and connected to the second end portion, and a discharge member connected to the second passage and configured to allow the gas introduced into the second passage to be discharged outward from the cabinet.

[0025] The door can face the first end portion. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings illustrate some embodiments of the present disclosure and together with the detailed description further describe the aspects and features of the present disclosure. However, the present disclosure should not be construed as being limited to the embodiments illustrated in the drawings.

[0027] Embodiments of the present disclosure will be described in detail by referring to the attached drawings, in which:

[0028] Figure 1 to schematically illustrate a perspective view of an energy storage system according to an embodiment of the present disclosure;

[0029] Figure 2 to schematically illustrate Figure 1 a cross-sectional perspective view of the energy storage system shown in FIG. 1;

[0030] Figure 3 to schematically illustrate Figure 1 and Figure 2 an exploded perspective view of the energy storage system shown in FIG. 1;

[0031] Figure 4 to schematically illustrate Figures 1-3 an exploded perspective view of a door of the energy storage system shown in FIG. 1;

[0032] Figure 5 to schematically illustrate Figure 4 an exploded perspective view of the door shown in FIG. 1;

[0033] Figure 6 to schematically illustrate Figure 4 and Figure 5 a perspective view of the door shown in FIG. 1;

[0034] Figure 7 to schematically illustrate Figures 4-6 a top cross-sectional view of the door shown in FIG. 1;

[0035] Figure 8 and Figure 9 to schematically illustrate Figures 1-7 a process of operating the energy storage system shown in FIG. 1;

[0036] Figure 10 perspective view of a configuration of the energy storage system shown in

[0037] Figure 11 perspective view of a configuration of the energy storage system shown in Figure 10

[0038] Figure 12 perspective view of a configuration of the energy storage system shown in Figure 11

[0039] Figure 13 perspective view of a configuration of the energy storage system shown in Figure 11 Figure 12

[0040] Figure 14 Figures 11-13 perspective view of a configuration of the energy storage system shown in

[0041] Figure 15 perspective view of a configuration of the energy storage system shown in Figures 11-14

[0042] Figure 16 perspective view of a configuration of the energy storage system shown in Figure 15

[0043] Figure 17 perspective view of a configuration of the energy storage system shown in Figures 11-14

[0044] Figure 18 perspective view of a configuration of the energy storage system shown in Figure 17

[0045] Figures 19 to 23 Figures 11-18

[0046] Figure 24 perspective view of a configuration of the energy storage system shown in

[0047] Figure 25 perspective view of a configuration of the energy storage system shown in Figure 24

[0048] Figure 26

[0049] Figure 27 ​​​​​​​​​​​​​to schematically illustrate a cross-sectional view of an energy storage system according to another embodiment of the present disclosure; and

[0050] Figure 28 to Figure 27 a schematic diagram of the operation of the energy storage system shown in the middle. DETAILED DESCRIPTION

[0051] In this document, embodiments of the present disclosure will be described in detail with reference to accompanying drawings. The terminology or words used in the present specification and claims should not be interpreted as being limited to generally used meanings or dictionary meanings, but should be interpreted in a conceptual and holistic manner based on the principle that the inventor can appropriately define the terminology in consideration of the knowledge of those skilled in the art at the time of filing the application.

[0052] The embodiments described in the present specification and the configurations shown in the accompanying drawings are provided as some example embodiments of the present disclosure, and do not represent all technical ideas, aspects, and features of the present disclosure. Accordingly, it should be understood that, at the time of filing the present application, there can be various equivalents and modifications which can substitute or modify the embodiments described herein.

[0053] It should be understood that when an element or layer is referred to as being "on", "connected to", or "coupled to" another element or layer, it can be directly on, connected or coupled to the other element or layer, or one or more intervening elements or layers can exist. When an element or layer is referred to as being "directly on", "directly connected to", or "directly coupled to" another element or layer, there are no intervening elements or layers. For example, when a first element is described as being "coupled" or "connected" to a second element, the first element can be directly coupled or connected to the second element, or the first element can be indirectly coupled or connected to the second element via one or more intervening elements.

[0054] In the figures, the size of various elements, layers, etc., can be exaggerated for clarity. Like reference numbers signify like elements in all figures. As used in the description herein and throughout the claims that follow, the meaning of “and / or” includes both conjunctive and disjunctive meanings of the term. Additionally, use of “can” in describing embodiments of the disclosure relates to “one or more embodiments of the disclosure.” Expressions such as “at least one of,” and “one or more of,” when preceding a list of two or more members, denote even a single one of the listed members. Expressions such as “at least one of,” and “one or more of,” when preceding a list of two or more members, denote even a single one of the listed members and all appropriate combinations and subsets of the members. As used herein, the term “use” can be considered synonymous with the term “utilize.” As used herein, the terms “substantially,” “approximately,” and like terms are used as terms of approximation and not as terms of degree, and are intended to account for the inherent variations in a measuring process or calculation.

[0055] It should be understood that, although the terms “first,” “second,” “third,” etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

[0056] Spatially relative terms (such as “beneath,” “below,” “lower,” “above,” “upper,” and the like) can be used herein for ease of description to describe one element or feature’s relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device is inverted in the figure, a lower surface or element then can be oriented upward - i.e., it can be oriented “above” or “on top of” other surfaces or elements in the figure. As such, the term “below” can encompass both an orientation of above and below. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0057] The terminology used herein is for the purpose of describing embodiments of the present disclosure and is not intended to be limiting of the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0058] Further, any numerical ranges herein are intended to include all sub-ranges of the same numerical precision, i.e. 1.0 to 10.0 is intended to include 2.4 to 7.6, etc. Any maximum numerical limitation

[0059] Referring to two compared elements, features, etc. as "the same" can mean that they are "substantially the same." Thus, the phrase "substantially the same" can include cases where there is a deviation that is considered low in the art (e.g., a deviation of 5% or less). Additionally, when a parameter is said to be uniform in a given region, it can mean that it is uniform in terms of average value.

[0060] Throughout the specification, unless otherwise indicated, each element can be singular or plural.

[0061] When any element is referred to as being "on" or "above" or "below" a component, it can mean that the element is placed in contact with the upper surface (or lower surface) of the component, or it can mean that another component can be interposed between the component and any element arranged (or located or positioned) on (or below) the component.

[0062] Also, it will be understood that when an element is referred to as being "coupled" or "linked" to another element, it can be directly coupled or linked to the other element or intervening elements can be present. In addition, the word "connected" or "linking" can be used herein to mean electrically connected or linked, unless otherwise stated. In addition, the term "electrically coupled" to another term means that the term can be directly electrically connected to the other term or one or more intervening terms can be present such that the term and the other term are indirectly electrically connected to each other.

[0063] Throughout the specification, unless otherwise stated, when stating "A and / or B", it means A, B, or A and B. That is, "and / or" includes any one or all combinations of the listed items. Unless otherwise stated, when stating "C~D", it means C or more and D or less.

[0064] The terms used in the present specification are used to describe embodiments of the present disclosure, and are not intended to limit the present disclosure.

[0065] Figure 1 FIG. 1 is a perspective view schematically illustrating an energy storage system according to an embodiment of the present disclosure, Figure 2 FIG. 2 is a perspective view schematically illustrating an energy storage system according to an embodiment of the present disclosure, Figure 1 FIG. 3 is a cross-sectional perspective view of the energy storage system shown in FIG. 1, and Figure 3 FIG. 4 is a perspective view schematically illustrating an energy storage system according to an embodiment of the present disclosure, Figure 1 FIG. 5 is an exploded perspective view of the energy storage system shown in FIG. 4. Figure 2 Referring to

[0066] , the energy storage system according to the illustrated embodiment includes a cabinet 100, a battery module 200, and a door 300. Figures 1 to 3 The cabinet 100 can form an appearance of the energy storage system. Examples of the cabinet 100 can include various types of closed structures having an empty interior, such as a container, etc.

[0067] A longitudinal direction of the cabinet 100 to be described below can be a direction parallel to an X-axis in

[0068] , a width direction of the cabinet 100 can be a direction parallel to a Y-axis in Figure 1 , and a height direction of the cabinet 100 can be a direction parallel to a Z-axis in Figure 1 . The height direction of the cabinet 100 can be a direction perpendicular to the ground, i.e., a direction parallel to a vertical direction. Figure 1

[0069] The cabinet 100 can include a frame body 110, a support rail 120, and a cover 130.

[0070] ​The frame body 110 can form a frame of the cabinet 100 and entirely support the side cover 131, the end cover 132, and the top cover 133.

[0071] The frame body 110 can include a base 111, a first outer frame 112, a second outer frame 113, and an inner frame 114.

[0072] The base 111 can be disposed (or placed) on the ground (for example, the base 111 can be supported by the ground). An upper surface of the base 111 can have a flat plate shape.

[0073] The first outer frame 112 can have a column shape extending upward from the upper surface of the base 111. The first outer frame 112 can be provided as a plurality of first outer frames 112. The first outer frames 112 can be arranged to be spaced apart from each other at a certain interval (for example, at a set interval) in the longitudinal direction of the cabinet 100. The number of the first outer frames 112 and the interval between the first outer frames 112 can vary depending on the size of the base 111, etc.

[0074] The second outer frame 113 can have a column shape extending upward from the upper surface of the base 111. The second outer frame 113 can be arranged to be spaced apart from the first outer frame 112 in the width direction of the cabinet 100. For example, as shown in FIG. 1, the first outer frame 112 and the second outer frame 113 can be disposed at both end portions (for example, opposite end portions) in the width direction of the base 111. The second outer frame 113 can be provided as a plurality of second outer frames 113. The second outer frames 113 can be arranged to be spaced apart from each other at a certain interval (for example, at a set interval) in the longitudinal direction of the cabinet 100. The number of the second outer frames 113 and the interval between the second outer frames 113 can be the same as the number and the interval of the first outer frames 112. Figure 3 The inner frame 114 can have a column shape extending upward from the upper surface of the base 111. The inner frame 114 can be disposed between the first outer frame 112 and the second outer frame 113. The inner frame 114 can be provided as a plurality of inner frames 114. The inner frames 114 can be arranged to be spaced apart from each other at a certain interval (for example, at a set interval) in the longitudinal direction of the cabinet 100. The number of the inner frames 114 and the interval between the inner frames 114 can be the same as the number and the interval of the first outer frames 112.

[0075] The frame body 110 can form a first accommodation space 115 between the first outer frame 112 and the inner frame 114 and a second accommodation space 116 between the second outer frame 113 and the inner frame 114.

[0076] The frame body 110 can form a first accommodation space 115 between the first outer frame 112 and the inner frame 114 and a second accommodation space 116 between the second outer frame 113 and the inner frame 114.

[0077] The support rails 120 can be provided inside the frame body 110 and can support the battery modules 200 inside the frame body 110. The support rails 120 can have a bar shape having a longitudinal direction extending in the longitudinal direction of the cabinet 100. The support rails 120 can have a substantially "L" shaped cross-section. The support rails 120 can be provided as a plurality of support rails 120. All of the support rails 120 can be installed in the first accommodation space 115 and the second accommodation space 116.

[0078] The plurality of support rails 120 provided inside the first accommodation space 115 can be arranged in two rows in the width direction of the first accommodation space 115. The support rails 120 arranged in different rows can be provided to face each other inside the first accommodation space 115. One surface of each of the support rails 120 arranged in one row can be fixed to the first outer frame 112 inside the first accommodation space 115. One surface of each of the support rails 120 arranged in the other row can be fixed to the inner frame 114 inside the first accommodation space 115. The plurality of support rails 120 provided inside the first accommodation space 115 can be stacked in the height direction of the first accommodation space 115, i.e., in the vertical direction at a certain interval (e.g., at a set interval).

[0079] The plurality of support rails 120 provided inside the second accommodation space 116 can be arranged in two rows in the width direction of the second accommodation space 116. The support rails 120 arranged in different rows can be provided to face each other inside the second accommodation space 116. One surface of each of the support rails 120 arranged in one row can be fixed to the second outer frame 113 inside the second accommodation space 116. One surface of each of the support rails 120 arranged in the other row can be fixed to the inner frame 114 inside the second accommodation space 116. The plurality of support rails 120 provided inside the second accommodation space 116 can be stacked in the height direction of the second accommodation space 116, i.e., in the vertical direction at a certain interval (e.g., at a set interval).

[0080] The cover 130 can be provided to surround the outer surface of the frame body 110.

[0081] The cover 130 can include a side cover 131, an end cover 132, and a top cover 133.

[0082] The side cover 131 can be provided to surround (e.g., cover) the side surface of the frame body 110. In the illustrated embodiment, the side surface of the frame body 110 can be a surface parallel to the longitudinal direction of the cabinet 100 among all the outer peripheral surfaces of the frame body 110. The side cover 131 can have a substantially flat plate shape.

[0083] The side cover 131 can be provided as a pair of side covers 131. The pair of side covers 131 can be disposed to be spaced apart from each other in the width direction of the cabinet 100. The pair of side covers 131 can be disposed to surround (e.g., cover) both side surfaces of the frame body 110. For example, an inner surface of one of the pair of side covers 131 can be disposed to face an outer surface of the first outer frame 112. An inner surface of the other of the pair of side covers 131 can be disposed to face an outer surface of the second outer frame 113. The side cover 131 can be fixed to the base 111 by welding, bolting, or the like.

[0084] The end cover 132 can be disposed to surround (e.g., cover) a rear surface of the frame body 110. In the illustrated embodiment, the rear surface of the frame body 110 can be any one of outer peripheral surfaces of the frame body 110 that are parallel to the width direction of the cabinet 100. The end cover 132 can have a substantially flat plate shape. An inner surface of the end cover 132 can be disposed to face the first outer frame 112, the second outer frame 113, and the inner frame 114 disposed at the last end among the plurality of first outer frames 112, the plurality of second outer frames 113, and the plurality of inner frames 114. The end cover 132 can be fixed to the base 111 by welding, bolting, or the like.

[0085] The top cover 133 can be disposed to surround (e.g., cover) an upper surface of the frame body 110. The top cover 133 can have a substantially flat plate shape. An inner surface of the top cover 133 can be disposed to face upper end portions of the plurality of first outer frames 112, upper end portions of the plurality of second outer frames 113, and upper end portions of the plurality of inner frames 114. The end cover 132 can be fixed to the upper end portions of the first outer frame 112, the upper end portions of the second outer frame 113, and the upper end portions of the inner frame 114 by welding, bolting, or the like.

[0086] A first direction to be described below can be a direction from the front surface of the frame body 110 toward the end cover 132 among directions parallel to the longitudinal direction of the cabinet 100, and a second direction can be any one of directions intersecting the first direction among directions parallel to the width direction of the cabinet 100.

[0087] The battery module 200 can be a unit structure that stores and supplies electric power in (e.g., as a part of) an energy storage system. The battery module 200 can include a module case and a plurality of battery cells accommodated inside the module case. The battery cell can be a prismatic, cylindrical, or pouch-type secondary battery in which an electrode assembly including positive and negative electrode plates placed on both sides (e.g., opposite sides) of a separator is disposed inside a battery cell case, and is configured to charge and discharge a certain amount of electric power (e.g., a predetermined amount of electric power). The battery module 200 can have a substantially cuboid box shape.

[0088] The battery module 200 can be provided as a plurality of battery modules 200. The plurality of battery modules 200 can be arranged in at least two rows in the second direction (i.e., a direction parallel to the width direction of the cabinet 100). For example, the plurality of battery modules 200 can be arranged in two rows in the second direction, and the plurality of battery modules 200 arranged in different rows can be disposed inside the first accommodation space 115 and the second accommodation space 116. The plurality of battery modules 200 can be stacked in a vertical direction inside the first accommodation space 115 and the second accommodation space 116.

[0089] The battery module 200 can be seated on and supported by the support rail 120. For example, a lower surface of the battery module 200 can be in contact with a pair of support rails 120 disposed inside the first accommodation space 115 or the second accommodation space 116 to face each other in the width direction of the cabinet 100.

[0090] A distance between the pair of support rails 120 disposed vertically adjacent to each other inside the first accommodation space 115 or the second accommodation space 116 can be greater than a height of any one of the battery modules 200. That is, the height of the battery module 200 can be less than the distance between the pair of support rails 120 disposed vertically adjacent to each other inside the first accommodation space 115 or the second accommodation space 116.

[0091] The exhaust port B can be formed in an upper surface of the battery module 200 to discharge a flame or gas generated when a battery cell accommodated inside the battery module combusts or undergoes thermal runaway from the battery module 200. The exhaust port B can be provided as a plurality of exhaust ports B. The plurality of exhaust ports B can be arranged in at least two rows in the longitudinal direction and the width direction of the battery module 200.

[0092] A communication device for communication with an external device and a control device for controlling power transmission can be mounted on a front surface of the battery module 200 located on opposite sides of the end cover 132.

[0093] The door 300 can be mounted to be movable with respect to the frame body 110 and to open and close the internal space of the cabinet 100 depending on the direction of movement. The door 300 can be disposed to face a side surface of the battery module 200, for example, a front surface of the battery module 200.

[0094] Figure 4 An exploded perspective view of the door shown in FIG. 1A is illustrated, Figures 1-3 An exploded perspective view of the door shown in FIG. 1A is illustrated, Figure 5 A perspective view of the door shown in FIG. 1A is illustrated, Figure 4 A perspective view of the door shown in FIG. 1A is illustrated, Figure 6 A perspective view of the door shown in FIG. 1A is illustrated, and Figure 4 A perspective view of the door shown in FIG. 1A is illustrated, and Figure 7 A perspective view of the door shown in FIG. 1A is illustrated, and Figure 4a top cross-sectional view of the door shown in FIG. 1.

[0095] Referring to Figures 4 to 7 The door 300 can include a first door frame 310, a second door frame 320, a door passage 330, an inlet hole (e.g., an inlet opening) 340, a discharge hole (e.g., a discharge opening) 350, and a blocking member 360.

[0096] The first door frame 310 can form an appearance of an inner side of the door 300 (e.g., can form an inward-facing surface). The first door frame 310 can have a plate shape with a center portion that is concavely recessed in a concave shape. The first door frame 310 can be disposed to surround (e.g., cover) a front surface of the frame body 110. In the illustrated embodiment, the front surface of the frame body 110 can be one of the remaining surfaces of the frame body 110 that are parallel to the width direction of the cabinet 100 and that are located on opposite sides of the end cover 132. The concave surface of the first door frame 310 can be disposed to face the outside of the frame body 110.

[0097] The first door frame 310 can be rotatably (e.g., pivotably) mounted on the front surface of the frame body 110. For example, one side of the first door frame 310 can be rotatably connected to a door bracket 301 mounted on a front portion of the frame body 110 by a pin, a hinge, or the like. One side of the first door frame 310 can be rotatably supported about an axis in the height direction (i.e., the vertical direction) of the cabinet 100. The first door frame 310 can be rotated clockwise or counterclockwise about one side thereof to open and close the internal space of the frame body 110.

[0098] When the first door frame 310 closes the internal space of the frame body 110, the width direction of the first door frame 310 can be parallel to the width direction (e.g., the second direction) of the cabinet 100. The thickness direction of the first door frame 310 can be parallel to the longitudinal direction (e.g., the first direction) of the cabinet 100.

[0099] The second door frame 320 can form an appearance of an outer side of the door 300. The second door frame 320 can have a substantially flat plate shape. The second door frame 320 can be disposed to face the first door frame 310 outside the first door frame 310. For example, an inner surface of the second door frame 320 can be disposed to face an outer surface of the first door frame 310 (i.e., the concavely recessed surface of the first door frame 310). The inner surface of the second door frame 320 can be fixed to the outer surface of the first door frame 310 by welding, bolting, or the like.

[0100] A door passage 330 can be disposed between the first door frame 310 and the second door frame 320. An example of the door passage 330 can include an empty space formed between the first door frame 310 and the second door frame 320, as (for example, to accommodate) a center portion of the outer surface of the first door frame 310 that is concavely recessed.

[0101] The door passage 330 can include a first entrance end portion 331 and a second entrance end portion 332 spaced apart from each other.

[0102] The first entrance end portion 331 and the second entrance end portion 332 can be spaced apart from each other inside the door passage 330 in a direction parallel to the first door frame 310. For example, the first entrance end portion 331 and the second entrance end portion 332 can be spaced apart from each other in a direction parallel to a width direction of the first door frame 310 and intersecting a thickness direction of the first door frame 310. A distance between the first entrance end portion 331 and the second entrance end portion 332 can be less than a width of the first door frame 310 and the second door frame 320.

[0103] A gasket can be installed between the first door frame 310 and the second door frame 320. The gasket can be made of an elastically deformable material such as rubber, silicone, or the like. The gasket can have a belt shape, have an open center portion, and can be disposed to surround the door passage 330 (for example, extend around a periphery of the door passage 330). Each of two surfaces of the gasket can be in close contact with one of the outer surface of the first door frame 310 and the inner surface of the second door frame 320. Accordingly, the gasket can prevent a flame or smoke introduced into the door passage 330 from being discharged to the outside through a gap between the first door frame 310 and the second door frame 320.

[0104] The entrance hole 340 can be a hole (for example, an opening) passing through the first door frame 310 in a thickness direction of the first door frame 310 and having a vertically extending shape. The entrance hole 340 can allow a flame or gas to be introduced into the door passage 330 when a fire occurs inside the cabinet 100.

[0105] The entrance hole 340 can include a first entrance hole 341 and a second entrance hole 342.

[0106] The first inlet hole 341 can be formed in one side of the first door frame 310 and can be connected to the first inlet end portion 331. The first inlet hole 341 can allow a flame or gas generated inside the cabinet 100 to be introduced into the first inlet end portion 331 of the door passage 330. The first inlet hole 341 can pass through the first door frame 310 in a direction crossing a direction in which the first inlet end portion 331 and the second inlet end portion 332 are spaced apart from each other. Accordingly, a moving direction of the flame or gas introduced into the first inlet hole 341 can be changed through the door passage 330, and a moving speed thereof can be reduced.

[0107] The first inlet hole 341 can include a first upper inlet hole 341a, a first middle inlet hole 341b, and a first lower inlet hole 341c.

[0108] The first upper inlet hole 341a, the first middle inlet hole 341b, and the first lower inlet hole 341c can be sequentially arranged downward from a top of the first door frame 310. Accordingly, regardless of a discharge position, the first inlet hole 341 can allow a flame or gas discharged from the battery modules 200 stacked in a vertical direction to be introduced into the door passage 330 along a shortest path.

[0109] The first upper inlet hole 341a, the first middle inlet hole 341b, and the first lower inlet hole 341c can be separated from each other. For example, end portions of the first upper inlet hole 341a, the first middle inlet hole 341b, and the first lower inlet hole 341c can be provided to be spaced apart from each other by a certain interval (e.g., a predetermined interval) in a vertical direction. Accordingly, when a flame or gas discharged from the battery modules 200 passes through the first upper inlet hole 341a, the first middle inlet hole 341b, and the first lower inlet hole 341c, the first inlet hole 341 can prevent foreign matter from being accumulated in the first lower inlet hole 341c.

[0110] The first upper inlet hole 341a, the first middle inlet hole 341b, and the first lower inlet hole 341c can be respectively provided as a plurality of first upper inlet holes 341a, a plurality of first middle inlet holes 341b, and a plurality of first lower inlet holes 341c. The plurality of first upper inlet holes 341a, the plurality of first middle inlet holes 341b, and the plurality of first lower inlet holes 341c can be arranged in parallel in a width direction of the first door frame 310.

[0111] A cross-sectional shape of the first upper inlet hole 341a, the first middle inlet hole 341b, and the first lower inlet hole 341c can have various shapes such as a circular shape, an elliptical shape, and other polygonal shapes, in addition to Figure 4 and Figure 5 a rectangular shape as shown.

[0112] The second inlet hole 342 can be formed in the other side of the first door frame 310 and can be connected to the second inlet end portion 332. The second inlet hole 342 can be spaced apart from the first inlet hole 341 in the width direction of the first door frame 310. The second inlet hole 342 can allow the flame or gas generated inside the cabinet 100 to be introduced into the second inlet end portion 332 of the door passage 330. The second inlet hole 342 can pass through the first door frame 310 in a direction crossing a direction in which the first inlet end portion 331 and the second inlet end portion 332 are spaced apart from each other. Accordingly, the moving direction of the flame or gas introduced into the second inlet hole 342 can be changed through the door passage 330, and the moving speed thereof can be reduced.

[0113] The second inlet hole 342 can include a second upper inlet hole 342a, a second middle inlet hole 342b, and a second lower inlet hole 342c.

[0114] The second upper inlet hole 342a, the second middle inlet hole 342b, and the second lower inlet hole 342c can be sequentially arranged downward from the top of the first door frame 310. Accordingly, regardless of the discharge position, the second inlet hole 342 can allow the flame or gas discharged from the battery modules 200 stacked in the vertical direction to be introduced into the door passage 330 along the shortest path.

[0115] The second upper inlet hole 342a, the second middle inlet hole 342b, and the second lower inlet hole 342c can be separated from each other. For example, end portions of the second upper inlet hole 342a, the second middle inlet hole 342b, and the second lower inlet hole 342c can be provided to be spaced apart from each other by a certain interval (for example, a predetermined interval) in the vertical direction. Accordingly, when the flame or gas discharged from the battery modules 200 passes through the second upper inlet hole 342a, the second middle inlet hole 342b, and the second lower inlet hole 342c, the second inlet hole 342 can prevent foreign matter from being accumulated in the second lower inlet hole 342c.

[0116] The second upper inlet hole 342a, the second middle inlet hole 342b, and the second lower inlet hole 342c can be respectively provided as a plurality of second upper inlet holes 342a, a plurality of second middle inlet holes 342b, and a plurality of second lower inlet holes 342c. The plurality of second upper inlet holes 342a, the plurality of second middle inlet holes 342b, and the plurality of second lower inlet holes 342c can be arranged in parallel in the width direction of the first door frame 310.

[0117] The cross-sectional shape of the second upper inlet hole 342a, the second middle inlet hole 342b, and the second lower inlet hole 342c can be various shapes such as a circular shape, an elliptical shape, and other polygonal shapes, in addition to Figure 4 and Figure 5 a rectangular shape as shown.

[0118] The discharge hole 350 can have a shape of a hole (e.g., an opening) passing through the second door frame 320 in a thickness direction of the second door frame 320 and vertically elongated. The discharge hole 350 can discharge a flame or gas introduced into the door passage 330 from an inside of the door passage 330. The discharge hole 350 can be disposed to be misaligned (e.g., offset) from the first and second inlet holes 341 and 342. For example, the discharge hole 350 can be disposed at a position not directly facing the first and second inlet holes 341 and 342. In an embodiment, the discharge hole 350 can be disposed between the first and second inlet holes 341 and 342 and can be connected to (e.g., in fluid communication with) a region of a central portion of the door passage 330. A width of the discharge hole 350 can be smaller than a distance between the first and second inlet holes 341 and 342. Accordingly, the discharge hole 350 can discharge the flame or gas introduced into the first and second inlet holes 341 and 342 after the flame or gas is sufficiently moved in an extension direction of the door passage 330, and thus can more effectively reduce a moving speed of the flame or gas.

[0119] A ratio of an area of the inlet hole 340 to an area of the discharge hole 350 can be in a range of about 50% or more and about 80% or less. The area of the inlet hole 340 can be a sum of an area of the first upper inlet hole 341a, an area of the first middle inlet hole 341b, an area of the first lower inlet hole 341c, an area of the second upper inlet hole 342a, an area of the second middle inlet hole 342b, and an area of the second lower inlet hole 342c. When the ratio of the area of the inlet hole 340 to the area of the discharge hole 350 is less than about 50%, an area through which a flame or gas generated inside the cabinet 100 is introduced into the door passage 330 can be excessively reduced, thereby reducing a discharge performance of the flame or gas. When the ratio of the area of the inlet hole 340 to the area of the discharge hole 350 is greater than about 80%, a moving speed of the flame or gas introduced into the inlet hole 340 can be excessively increased, thereby reducing a deceleration performance of the door passage 330 with respect to the flame.

[0120] The blocking member 360 can be disposed to face the discharge hole 350 and block the flame from passing after the flame is discharged from the discharge hole 350. Meanwhile, the blocking member 360 can allow the gas discharged from the discharge hole 350 to pass.

[0121] The blocking member 360 can include a blocking filter 361 and a fixing bracket 362.

[0122] The blocking filter 361 can have a plate shape in which a plurality of meshes capable of allowing the gas discharged from the discharge hole 350 to pass through but blocking the flame from passing through are arranged in a lattice pattern. The blocking filter 361 can be made of a high heat-resistant material such as at least one of stainless steel, copper, nickel, titanium, silver, tungsten, aluminum, or an alloy thereof. The blocking filter 361 can be provided to face the discharge hole 350 outside the second door frame 320. In another embodiment, the blocking filter 361 can be provided to face the discharge hole 350 inside the door passage 330. The blocking filter 361 can be provided as a plurality of blocking filters 361. The plurality of blocking filters 361 can be stacked in a direction in which the discharge hole 350 passes through the second door frame 320 or in a thickness direction of the second door frame 320.

[0123] The fixing bracket 362 can support the blocking filter 361 with respect to the second door frame 320. The fixing bracket 362 can be provided to face an outer surface of the second door frame 320, and the blocking filter 361 can be interposed therebetween. An inner region of the fixing bracket 362 can be provided to surround (e.g., extend around) an edge of the blocking filter 361, and can be fixed to the edge of the blocking filter 361 by welding, bolting, or the like. An outer region of the fixing bracket 362 can be in contact with the second door frame 320, and can be fixed to the second door frame 320 by welding, bolting, or the like.

[0124] The energy storage system according to the illustrated embodiment can further include a cover 370.

[0125] The cover 370 can be provided to face the blocking member 360 and to guide the discharge of the gas that has passed through the blocking member 360.

[0126] The cover 370 can include a cover body 371 and a guide hole 372.

[0127] The cover body 371 can have a box shape having an empty inside and an open side. The cover body 371 can be provided such that the open side thereof faces the blocking member 360. An area of the cover body 371 can be greater than an area of the blocking member 360, and an edge region of the cover body 371 can be fixed to an outer surface of the second door frame 320 by welding, bolting, or the like. Accordingly, the cover body 372 can prevent foreign substances contained in the gas that has passed through the blocking filter 361 from being dispersed to the outside of the cabinet 100.

[0128] The guide hole 372 can be formed to pass through the cover body 371 and to guide a discharge direction of the gas introduced into the cover body 371. Accordingly, the guide hole 372 can guide the gas discharged to the outside of the cabinet 100 to move in one direction (e.g., a predetermined direction), and thus can prevent damage to adjacent parts sensitive to contact with the gas or the like.

[0129] The guide hole 372 can pass through the side surface of the cover body 371 and can extend in a vertical direction. For example, the guide hole 372 can be provided as a pair of guide holes 372. The pair of guide holes 372 can be provided to pass through the upper surface and the lower surface of the cover body 371 and can face upward and downward, respectively. In other embodiments, the guide hole 372 can be formed as a single guide hole 372 and can be provided to pass through the upper surface or the lower surface of the cover body 371 and face upward or downward. Accordingly, the guide hole 372 can prevent gas discharged from the cabinet 100 from being sprayed toward a worker located near the cabinet 100.

[0130] The energy storage system according to the illustrated embodiment can further include a first passage 400.

[0131] The first passage 400 can be provided to face the exhaust port B of the battery module 200 and can provide a main moving path for the flame or gas discharged from the exhaust port B. Since the battery modules 200 are vertically stacked inside the first accommodation space 115 or the second accommodation space 116, an example of the first passage 400 can include an empty space between vertically arranged (e.g., stacked) adjacent battery modules 200. The longitudinal direction of the first passage 400 can extend in the first direction (e.g., the longitudinal direction of the cabinet 100).

[0132] The first passage 400 can be provided as a plurality of first passages 400. The plurality of first passages 400 can be respectively provided between vertically adjacent battery modules 200. The first passages 400 can be arranged in two rows in the second direction. The first passages 400 arranged in different rows can be formed in the first accommodation space 115 and the second accommodation space 116.

[0133] The first passage 400 can have a first end portion 410 and a second end portion 420 (e.g., see Figure 11 ).

[0134] The first end portion 410 and the second end portion 420 can be provided to be spaced apart from each other in the first direction. The first end portion 410 can be provided to face the inner surface of the door 300, e.g., spaced apart from the inner surface of the first door frame 310 by a certain distance (e.g., a predetermined distance). The second end portion 420 can be provided to face the inner surface of the end cover 132 and spaced apart from the inner surface of the end cover 132 by a certain distance (e.g., a predetermined distance).

[0135] The energy storage system according to the illustrated embodiment can further include a first partition P1 and a second partition P2.

[0136] The first partition P1 can be disposed between the side cover 131 and the battery module 200. The first partition P1 can have a substantially flat plate shape. Each of two surfaces (e.g., opposite surfaces) of the first partition P1 can be disposed to face one of an inner surface of the side cover 131 and a side surface of the battery module 200 in parallel. The first partition P1 can be made of a material having a relatively high heat resistance and insulation ability than those of the side cover 131. For example, the side cover 131 can be made of a metallic material such as steel or aluminum, etc., and the first partition P1 can be made of a material such as mica, etc. Accordingly, in the case where a fire occurs, the first partition P1 can reduce the temperature of the side cover 131 (or can slow down the increase in the temperature of the side cover 131), and can prevent the side cover 131 from being damaged due to the flame, thereby preventing the fire from spreading to the adjacent equipment installed outside the cabinet 100.

[0137] The first partition P1 can be provided as a plurality of first partitions P1. Some of the plurality of first partitions P1 can be disposed between the battery module 200 disposed inside the first accommodation space 115 and one side cover 131. The remaining partitions of the plurality of first partitions P1 can be disposed between the battery module 200 disposed inside the second accommodation space 116 and the other side cover 131.

[0138] The plurality of first partitions P1 facing the battery module 200 disposed inside the first accommodation space 115 can be respectively disposed between a pair of adjacent first outer frames 112. The plurality of first partitions P1 facing the battery module 200 disposed inside the second accommodation space 116 can be respectively disposed between a pair of adjacent second outer frames 113. An inner surface of the first partition P1 can be in contact with a side surface of the support rail 120. Accordingly, the first partition P1 can prevent the flame or the smoke introduced into the first passage 400 from being discharged to the outside through the side surface of the first passage 400.

[0139] The second partition P2 can be disposed between the battery modules 200 arranged in different rows. For example, the second partition P2 can be disposed between the first accommodation space 115 and the second accommodation space 116. The second partition P2 can have a substantially flat plate shape. Each of two surfaces (e.g., opposite surfaces) of the second partition P2 can be disposed to face one of a side surface of the battery module 200 disposed inside the first accommodation space 115 and a side surface of the battery module 200 disposed inside the second accommodation space 116 in parallel. The second partition P2 can be made of the same material as that of the first partition P1. Accordingly, the second partition P2 can prevent a fire occurring in any one of the first accommodation space 115 and the second accommodation space 116 from spreading to the other one of the first accommodation space 115 and the second accommodation space 116.

[0140] The second partition P2 can be provided as a plurality of second partitions. The plurality of second partitions P2 can be respectively disposed between a pair of adjacent inner frames 114. An inner surface of the second partition P2 can be in contact with a side surface of the support rail 120. Accordingly, the second partition P2, together with the first partition P1, can prevent the flame or the gas introduced into the first passage 400 from being discharged to the outside through the side surface of the first passage 400.

[0141] Hereinafter, the operation of the energy storage system according to the example embodiment of the disclosure will be described.

[0142] Figure 8 and Figure 9 for illustratively showing a view of the operation process of the energy storage system described with reference to Figures 1-7

[0143] with reference to Figure 8 and Figure 9 When a fire occurs in any one of the battery modules 200, the flame or the gas discharged from the exhaust port B of the corresponding battery module 200 can be introduced into the first passage 400 facing the exhaust port B of the corresponding battery module 200.

[0144] The flame or the gas introduced into the first passage 400 can move (or be guided) in the extension direction of the first passage 400 toward the first end portion 410 and the second end portion 420.

[0145] The flame or the gas discharged from the first end portion 410 can be introduced into the door passage 330 through the first inlet hole 341 or the second inlet hole 342.

[0146] Since the first inlet hole 341 and the second inlet hole 342 are connected to (e.g., in fluid communication with) the first inlet hole end portion 331 and the second inlet hole end portion 332, respectively, the flame or the gas introduced into the first inlet hole 341 or the second inlet hole 342 can move to (or be guided to) the area of the central portion of the door passage 330 in the extension direction of the door passage 330.

[0147] In this process, the extension direction of the door passage 330 intersects the direction in which the first inlet hole 341 and the second inlet hole 342 pass through the first door frame 310, and thus the moving speed of the flame or the gas introduced into the door passage 330 can be reduced.

[0148] The flame or the gas that moves to the central portion of the door passage 330 can be introduced into the discharge hole 350 and can come into contact with the blocking filter 361. The blocking filter 361 can block the passage of the flame by absorbing the heat of the flame through heat exchange with the flame.

[0149] ​The gas introduced into the discharge hole 350 can pass through the mesh of the barrier filter 361, and can be transmitted into the cover body 371.

[0150] The gas introduced into the cover body 371 can be finally discharged upward or downward from the inside of the cabinet 100 through the guide hole 642.

[0151] Hereinafter, a power storage system according to another embodiment of the present disclosure will be described.

[0152] Figure 10 FIG. 6 is a perspective view schematically illustrating a power storage system according to another embodiment of the present disclosure, Figure 11 FIG. 7 is a perspective view schematically illustrating Figure 10 FIG. 8 is a cross-sectional perspective view of the power storage system shown in FIG. 7, Figure 12 FIG. 9 is a side cross-sectional view schematically illustrating Figure 10 and Figure 11 FIG. 10 is a front cross-sectional view of the power storage system shown in FIG. 9, and Figure 13 FIG. 11 is a perspective view schematically illustrating Figures 10-12 FIG. 12 is an exploded perspective view of the cabinet of the power storage system shown in FIG. 11. Figure 14 Figures 10-13 Referring to , the power storage system according to the illustrated embodiment can further include a second passage 500, a guide member 600, and a main discharge member (also referred to as a discharge member) 700.

[0153] Figures 10 to 14 The power storage system according to the illustrated embodiment can differ from the power storage system described above with reference to FIG. 1 in that the second passage 500, the guide member 600, and the main discharge member 700 are further included.

[0154] Figures 1 to 9 Accordingly, in describing the power storage system according to the present embodiment, the second passage 500, the guide member 600, and the main discharge member 700, which are not described with reference to FIG. 1, will be mainly described.

[0155] Figures 1 to 9

[0156] ​​The second passage 500 can be provided inside the cabinet 100 and can be connected to (e.g., can be in fluid communication with) the second end portion 420 of the first passage 400. The second passage 500 can provide a secondary moving path for the flame or gas that has passed through the first passage 400. An example of the second passage 500 can include an empty space provided between the rear surface of the battery module 200 and the inner surface of the end cover 132. The second passage 500 can be provided to cross the first passage 400. For example, the second passage 500 can extend vertically in the height direction of the cabinet 100. One surface of the second passage 500 can be connected to (e.g., can be open to) the second end portions 420 of the plurality of first passages 400.

[0157] The volume of the second passage 500 can be greater than the volume of the first passage 400. For example, the volume of the first passage 400 can be about 6.5 L, and the volume of the second passage 500 can be about 38.6 L. Accordingly, the second passage 500 maintains a relatively low pressure than the first passage 400, so that the flame or gas discharged from the exhaust port B can be naturally transferred from the first passage 400 to the second passage 500 without any external force.

[0158] The guide member 600 is installed in the first passage 400 and guides the movement of the flame or gas discharged from the exhaust port B in the first direction. For example, the guide member 600 can guide the flame or gas discharged from the exhaust port B to move toward the second end portion 420 connected to the second passage 500. Accordingly, in the event of a fire, the guide member 600 can prevent secondary damage, such as the combustion of a communication device and a control device installed on the front surface of the battery module 200, damage to the door 300 due to gas pressure, etc.

[0159] Figure 15 To schematically illustrate the perspective view of the guide member of the energy storage system described above with reference to Figures 10-14 To schematically illustrate the perspective view of the guide member of the energy storage system described above with reference to Figure 16 To schematically illustrate the perspective view of the guide member of the energy storage system described above with reference to Figure 15 To schematically illustrate the perspective view of the guide member of the energy storage system described above with reference to

[0160] Referring to Figure 15 and Figure 16 The guide member 600 can include a guide vane 610 and a sealing member 620.

[0161] The guide vane 610 can block the flame or gas introduced into the first passage 400 from being discharged from the first end portion 410. The guide vane 610 can have a substantially plate shape, and can be disposed between the first end portion 410 and the door 300. Each of two surfaces of the guide vane 610 can be disposed to face one of the first end portion 410 and the door 300. A vertical width of the guide vane 610 can be greater than a vertical width of the first passage 400.

[0162] The guide vane 610 can be provided as a plurality of guide vanes 610. The plurality of guide vanes 610 can be respectively disposed to face the first end portion 410 of each of the first passages 400 stacked in the vertical direction. The plurality of guide vanes 610 can be arranged in two rows in the second direction. Each of two end portions (e.g., opposite end portions) of the guide vane 610 disposed to face the first passage 400 formed in the first accommodation space 115 can be fixed to one of the first outer frame 112 and the inner frame 114. Each of two end portions (e.g., opposite end portions) of the guide vane 610 disposed to face the first passage 400 formed in the second accommodation space 116 can be fixed to one of the second outer frame 113 and the inner frame 114.

[0163] The guide vane 610 can be made of a metal material (such as steel, etc.) having high rigidity to prevent damage due to pressure of gas, etc. introduced into the first passage 400.

[0164] The sealing member 620 can be coupled to the guide vane 610, and can seal a gap between the first end portion 410 and the guide vane 610. The sealing member 620 can be elastically deformable. For example, the sealing member 620 can completely seal the first end portion 410 by deforming with its own elasticity to fill a gap between the guide vane 610 made of a rigid body and the battery module 200. The sealing member 620 can be made of a flexible material (such as rubber, silicone, etc.), and can completely surround an outer surface of the guide vane 610 (e.g., can extend completely around the outer surface of the guide vane 610).

[0165] The main discharge member 700 can be connected to the second passage 500, and can discharge gas introduced into the second passage 500 to the outside of the cabinet 100. Further, the main discharge member 700 can block the flame introduced into the second passage 500 from being discharged to the outside of the cabinet 100. Accordingly, the main discharge member 700 can prevent an excessive increase in internal pressure of the cabinet 100 in the case of a fire, and at the same time, can prevent the spread of the fire due to the outflow of the flame.

[0166] Figure 17 To schematically illustrate a cross-sectional perspective view of the main discharge member of the energy storage system described above with reference to Figures 10-16 FIG. 1 is a perspective view of a cabinet 100 according to an embodiment of the present disclosure.Figure 18 for illustrative purposes Figure 17 An exploded perspective view of the main discharge member shown in FIG.

[0167] Referring to Figure 17 and Figure 18 The main discharge member 700 can include a discharge plate 710, a third passage 720, a main blocking member 730, and a main cover 740.

[0168] The discharge plate 710 can be disposed outside the cabinet 100. For example, the discharge plate 710 can have a substantially flat plate shape, and a lower surface of the discharge plate 710 can be disposed to face an upper surface of the top cover 133. The lower surface of the discharge plate 710 can be disposed to be spaced apart from the upper surface of the top cover 133 by a certain interval (e.g., a predetermined interval). Accordingly, the third passage 720, which will be described below, can be formed between the discharge plate 710 and the top cover 133. The discharge plate 710 can be provided as a plurality of discharge plates 710. The plurality of discharge plates 710 can be disposed in parallel to each other on the top cover 133.

[0169] A discharge hole (e.g., a discharge opening) 711 can be formed in the discharge plate 710 to provide a path through which a flame or gas (to be described below) introduced into the third passage 720 is discharged. The discharge hole 711 can vertically pass through the discharge plate 710. The discharge hole 711 can be provided as a plurality of discharge holes 711. The plurality of discharge holes 711 can be disposed to be spaced apart from each other in the discharge plate 710.

[0170] An example of the third passage 720 can include an empty space formed inside the discharge plate 710 (e.g., between the discharge plate 710 and the top cover 133). One side of the third passage 720 can pass through the top cover 133 and can be connected to the upper end portion of the second passage 500. The other side of the third passage 720 can be connected to the discharge hole 711. The other side of the third passage 720 can be connected to all of the plurality of discharge holes 711. The third passage 720 can be disposed to cross the second passage 500. For example, the third passage 720 can be disposed (e.g., can extend) perpendicular to the height direction of the cabinet 100. Accordingly, the third passage 720 can reduce the moving speed of the flame transmitted from the second passage 500, and thus can further improve the flame blocking performance of the main blocking member 730, which will be described below.

[0171] The main blocking member 730 can be disposed to face the discharge hole 711, and can block the flame introduced into the third passage 720 from passing through the discharge hole 711. Meanwhile, the main blocking member 730 can allow the gas introduced into the third passage 720 to pass through the discharge hole 711.

[0172] The main blocking member 730 can include a main blocking filter 731 and a filter support 732.

[0173] The main blocking filter 731 can have a plate shape including a plurality of meshes arranged in a lattice shape to allow the gas discharged from the discharge hole 711 to pass through while blocking the flame from passing through. The main blocking filter 731 can be made of a material having high heat resistance (for example, at least one of stainless steel, copper, nickel, titanium, silver, tungsten, aluminum, or an alloy thereof). The main blocking filter 731 can be disposed to face the discharge hole 711 in the discharge plate 710. In another embodiment, the main blocking filter 731 can be disposed to face the discharge hole 711 inside the third passage 720. The main blocking filter 731 can be provided as a plurality of main blocking filters 731. The plurality of main blocking filters 731 can be stacked in a direction in which the discharge hole 711 passes through the discharge plate 710, that is, in a vertical direction.

[0174] The filter support 732 can support the main blocking filter 731 with respect to the discharge plate 710. The filter support 732 can be disposed to face the discharge plate 710 with the main blocking filter 731 interposed therebetween. An inner region of the filter support 732 can be disposed to surround the edge of the main blocking filter 731 (for example, to extend around the edge of the main blocking filter 731) and can be fixed to the edge of the main blocking filter 732 by welding, bolting, or the like. An outer region of the filter support 732 can be in contact with the discharge plate 710 and can be fixed to the discharge plate 710 by welding, bolting, or the like.

[0175] The main cover 740 can be disposed to face the main blocking member 730 and can guide the discharge of the gas that has passed through the main blocking member 730.

[0176] The main cover 740 can include a main cover body 741 and a main guide hole 742.

[0177] The main cover body 741 can have a box shape having an empty inside and an open side. The main cover body 741 can be disposed such that the open side thereof faces the main blocking member 730. The area of the main cover body 741 can be greater than that of the main blocking member 730, and the edge region of the main cover body 741 can be fixed to the discharge plate 710 by welding, bolting, or the like. Accordingly, the main cover body 741 can prevent foreign matter contained in the gas that has passed through the main blocking filter 731 from being dispersed to the outside of the cabinet 100.

[0178] The main guide hole 742 can pass through the main cover body 741 and can guide the discharge direction of the gas introduced into the main cover body 741. Accordingly, the main guide hole 742 can guide the gas discharged to the outside of the cabinet 100 to move in one direction (e.g., a predetermined direction), and thus can prevent damage to adjacent parts sensitive to contact with the gas, etc. The main guide hole 742 can pass vertically through the side surface of the main cover body 741. The main guide hole 742 can be provided as a plurality of main guide holes 742. The plurality of main guide holes 742 can be disposed to be spaced apart from each other along the outer peripheral surface of the main cover body 741.

[0179] Hereinafter, the operation process of the energy storage system described above with reference to Figures 10-18 will be described.

[0180] Figures 19 to 23 To schematically illustrate the view of the operation process of the energy storage system described above with reference to Figures 10-18 will be described.

[0181] Referring to Figure 19 , when a fire occurs in any one of the battery modules 200, the flame or gas discharged from the exhaust port B of the corresponding battery module 200 can be introduced into the first passage 400 facing the exhaust port B of the corresponding battery module 200.

[0182] The flame or gas introduced into the first passage 400 can move (or be guided) in the extension direction of the first passage 400 toward the first end portion 410 and the second end portion 420.

[0183] Referring to Figure 20 , the guide member 600 can block the flame or gas moving toward the first end portion 410 from being discharged to the outside of the first end portion 410, and due to the interference of the guide member 600, the moving direction can be changed to the direction (i.e., the first direction) toward the second end portion 420.

[0184] Referring to Figure 21 , the flame or gas moving toward the second end portion 420 can be introduced into the second passage 500. In the illustrated embodiment, the second passage 500 is disposed to cross the first passage 400, and thus the moving speed of the flame or gas introduced into the second passage 500 can be reduced.

[0185] The flame or gas introduced into the second passage 500 can move (or be guided) in the extension direction of the second passage 500 toward the upper end portion of the second passage 500 and be introduced into the third passage 720. In the illustrated embodiment, the third passage 720 is disposed to cross the second passage 500, and thus the moving speed of the flame or gas introduced into the second passage 500 can be further reduced.

[0186] In the illustrated embodiment, the volume of the second passage 500 is greater than the volume of the first passage 400, and thus the flame or gas introduced into the first passage 400 can continuously move toward the second passage 500 without any additional external force.

[0187] Referring to Figure 22 , the flame or gas introduced into the third passage 720 can be transmitted to the discharge hole 711 in the extension direction of the third passage.

[0188] The flame introduced into the discharge hole 711 can come into contact with the main barrier filter 731, and the main barrier filter 731 can block the flame from passing through by absorbing the heat of the flame through heat exchange with the flame.

[0189] The gas introduced into the discharge hole 711 can pass through the mesh of the main barrier filter 731, and can be transmitted into the main cover body 741.

[0190] The gas introduced into the main cover body 741 can be finally discharged from the inside of the cabinet 100 through the main guide hole 742.

[0191] Referring to Figure 23 , when excessive pressure is formed in the first passage 400, the guide member 600 is separated from the first end portion 410, and the flame or gas introduced into the first passage 400 can be discharged toward the door 300 through the first end portion 410.

[0192] Thereafter, for the flame or gas discharged to the outside of the first end portion 410, the same operation as described above with reference to Figure 8 and Figure 9 may occur.

[0193] Hereinafter, a storage energy system according to another embodiment of the present disclosure will be described.

[0194] The storage energy system according to the illustrated embodiment can differ from the storage energy system described above with reference to Figures 10 to 23 in the configuration of the guide member 600.

[0195] Accordingly, in describing the storage energy system according to the present embodiment, the configuration of the guide member 600 will be mainly described.

[0196] Figure 24 To schematically illustrate a plan view of the storage energy system according to another embodiment of the present disclosure, Figure 25 to schematically illustrate Figure 24 a sectional view of the storage energy system shown in Figure 26 , and to schematically illustrate a view of a state in which a flame or gas is discharged from an exhaust port.

[0197] Figures 24 to 26According to the guide member 600 of the illustrated embodiment, the guide window 630 can be further included.

[0198] The guide window 630 can be provided inside the first passage 400. The inside of the guide window 630 can be empty, and a lower surface of the guide window 630 can be provided to face the exhaust port B of the battery module 200. The lower surface of the guide window 630 can be open. Accordingly, the flame or gas discharged from the exhaust port B can be introduced into the guide window 630. An outer peripheral surface of the guide window 630 facing the second end portion 420 can be open. Accordingly, the guide window 630 can change a moving direction of the flame or gas discharged from the exhaust port B toward the second end portion 420 to guide the flame or gas introduced into the first passage 400 to be more rapidly transferred to the second passage 500.

[0199] The guide window 630 can be provided as a plurality of guide windows 630. The plurality of guide windows 630 can be respectively provided to face each of the exhaust ports B. The plurality of guide windows 630 can be integrally connected by a plate or the like, or can be separated from each other.

[0200] Hereinafter, a power storage system according to another embodiment of the disclosure will be described.

[0201] Figure 27 To schematically illustrate a cross-sectional view of a power storage system according to another embodiment of the disclosure, and Figure 28 To schematically illustrate Figure 27 a view of the operation of the power storage system shown in FIG.

[0202] Referring to Figure 27 and Figure 28 According to the power storage system of the illustrated embodiment, the backflow prevention member 800 can be further included.

[0203] The power storage system according to the present embodiment can be different from the above-described power storage system in that the backflow prevention member 800 is further included.

[0204] Accordingly, in describing the power storage system according to the present embodiment, the backflow prevention member 800 will be mainly described.

[0205] The backflow prevention member 800 can be disposed between the first passage 400 and the second passage 500, and can block a flame or gas introduced into the second passage 500 from moving backward into the first passage 400. Accordingly, the backflow prevention member 800 can prevent damage to the battery module 200 that can occur when a flame or gas moves backward into the first passage 400 due to a sudden pressure drop in the second passage 500. Further, because the pressure of the first passage 400 in which no fire occurs is lower than the pressure of the second passage 500, the backflow prevention member 800 can prevent a flame or gas transmitted to the second passage 500 from being introduced into the first passage 400 in which no fire occurs.

[0206] The backflow prevention member 800 can include a check valve 810.

[0207] The check valve 810 can be disposed inside the second end portion 420. An example of the check valve 810 can include a pressure control valve that opens when the pressure of the first passage 400 exceeds the pressure of the second passage 500, and closes when the pressure of the first passage 400 is lower than the pressure of the second passage 500. The check valve 810 can be provided as a plurality of check valves 810. The plurality of check valves 810 can be respectively installed in the second end portion 420 of the first passage 400.

[0208] According to embodiments of the present disclosure, by allowing gas to be discharged to the outside of the cabinet while blocking a flame from being discharged to the outside of the cabinet, it is possible to prevent the spread of a fire due to the outflow of a flame.

[0209] According to embodiments of the present disclosure, the door is disposed to face a side surface of the battery module, and thus, it is possible to improve the cooling efficiency of the battery module due to gas introduced from the outside during normal operation of the battery module.

[0210] According to embodiments of the present disclosure, the guide hole is disposed to face upward or downward, and thus, gas discharged to the outside of the cabinet can be guided to move in a direction in which damage to adjacent parts sensitive to contact with gas, etc. is prevented.

[0211] According to embodiments of the present disclosure, by allowing a flame or gas generated due to combustion or thermal runaway of the battery module to move through a set path, it is possible to reduce damage caused by a fire.

[0212] According to embodiments of the present disclosure, it is possible to prevent a fire occurring in any one of the battery modules from spreading to adjacent battery modules or adjacent equipment installed outside the cabinet, using the first partition and the second partition.

[0213] According to embodiments of the present disclosure, by changing the movement path of a flame a plurality of times, it is possible to reduce the transmission speed of a flame, and to further improve the flame blocking performance of the blocking member.

[0214] However, aspects and features of the present disclosure are not limited to those described above, and other aspects and features will be apparent to those skilled in the art from the following detailed description.

[0215] While the present disclosure has been described with reference to the examples illustrated in the drawings, the examples are merely illustrative and not restrictive; and it should be understood that various modifications and other embodiments known to those skilled in the art can be made based on the examples.

Claims

1. A door, characterized in that The door includes: a first door frame; a second door frame facing the first door frame; a door passage between the first door frame and the second door frame; an inlet hole passing through the first door frame and configured to allow a flame or gas to be introduced into the door passage; an exhaust hole passing through the second door frame and configured to allow a flame or gas to be exhausted from the door passage; and a blocking member facing the exhaust hole and configured to block a flame exhausted from the exhaust hole.

2. The door of claim 1, wherein The door passage has a first inlet end portion and a second inlet end portion spaced apart from each other, and wherein the inlet hole includes: a first inlet hole connected to the first inlet end portion; and a second inlet hole connected to the second inlet end portion.

3. The door of claim 2, wherein The first inlet end portion and the second inlet end portion are spaced apart from each other in a direction intersecting a direction in which the inlet hole passes through the first door frame.

4. The door of claim 2, wherein The first inlet end portion and the second inlet end portion are spaced apart from each other in a direction parallel to the first door frame.

5. The door of claim 2, wherein The first inlet hole includes: a first upper inlet hole; a first lower inlet hole below the first upper inlet hole; and a first middle inlet hole between the first upper inlet hole and the first lower inlet hole.

6. The door of claim 5, wherein The first upper inlet hole, the first lower inlet hole, and the first middle inlet hole are separated from each other.

7. The door of claim 2, wherein The second inlet hole includes: a second upper inlet hole; a second lower inlet hole below the second upper inlet hole; and a second middle inlet hole between the second upper inlet hole and the second lower inlet hole.

8. The door of claim 7, wherein, The second upper inlet hole, the second lower inlet hole, and the second middle inlet hole are separated from each other.

9. The door of claim 2, wherein The exhaust hole is offset from the first inlet hole and the second inlet hole.

10. The door of claim 2, wherein The exhaust hole is between the first inlet hole and the second inlet hole.

11. The door of claim 1, wherein A ratio of an area of the inlet hole to an area of the exhaust hole is in a range between 50% and 80%.

12. The door of claim 1, wherein The blocking member includes: a blocking filter facing the exhaust hole and having a plurality of meshes; and a fixing bracket configured to fix the blocking filter to the second door frame.

13. The door of claim 1, wherein The door further includes a cover facing the blocking member and configured to guide an exhaust of gas that has passed through the blocking member.

14. The door of claim 13, wherein, The cover includes: a cover body facing the blocking member and fixed to the second door frame; and a guide hole passing through the cover body and connected to the exhaust hole.

15. The door of claim 14, wherein, The guide hole faces upward or downward.

16. The door of claim 14, wherein The guide hole includes a pair of guide holes, one guide hole facing upward and the other guide hole facing downward.

17. An energy storage system characterized by, The energy storage system includes: a cabinet; a plurality of battery modules inside the cabinet; and a door configured to open or close an internal space in the cabinet, the door being the door according to any one of claims 1 to 16, and the first door frame is movably connected to the cabinet.

18. The energy storage system of claim 17, wherein, The door faces a side surface of the battery modules.

19. The energy storage system of claim 17, wherein, The energy storage system further includes: a first passage facing an exhaust port of one of the plurality of battery modules and having a first end portion and a second end portion spaced apart from each other in a first direction; a guide member in the first passage and configured to guide a flame or gas discharged from the exhaust port in the first direction; a second passage inside the cabinet and connected to the second end portion; and a discharge member connected to the second passage and configured to allow gas introduced into the second passage to be discharged outward from the cabinet.

20. The energy storage system of claim 19, wherein, The door faces the first end portion.

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