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 door. Background Art

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

[0003] The above information forms the background of the present disclosure and is intended to enhance the understanding of the background of the present disclosure. Thus, it may include information that does not constitute relevant (or prior) art. Summary of the Invention

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

[0005] These and other aspects and features of the present disclosure will be described in the following description of some embodiments of the present disclosure, or will 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; an outlet 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 outlet hole and configured to block the flame discharged from the outlet hole from passing through.

[0007] The door passage may have a first inlet end portion and a second inlet end portion spaced apart from each other. The inlet hole may 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 may be spaced apart from each other in a direction crossing the direction in which the inlet hole passes through the first door frame.

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

[0010] The first inlet hole may 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 hole 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] The ratio of the area of the inlet hole to the area of the discharge hole can be in the 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 hood that faces the blocking member and is configured to guide the discharge of the gas that has passed through the blocking member.

[0019] The hood can include: a hood body that faces the blocking member and is fixed to the second door frame; and a guiding hole that passes through the hood body and is connected to the discharge hole.

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

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

[0022] According to another embodiment of the present disclosure, an energy storage system includes: a cabinet; a plurality of battery modules inside the cabinet; and a door configured to open or close the 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 a 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 a flame discharged from the discharge hole.

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

[0024] The energy storage system may further include: a first channel facing the exhaust port of the battery module and having a first end portion and a second end portion spaced apart from each other in a first direction; a guiding member in the first channel and configured to guide a flame or gas discharged from the exhaust port in the first direction; a second channel inside the cabinet and connected to the second end portion; and a discharging member connected to the second channel and configured to allow the gas introduced into the second channel to be discharged outward from the cabinet.

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

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

[0027] By describing embodiments of the present disclosure in detail with reference to the drawings, the above and other aspects and features of the present disclosure will become more apparent to those of ordinary skill in the art. In the drawings:

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

[0029] Figure 2 is schematically illustrated Figure 1 a cross-sectional perspective view of the energy storage system shown in;

[0030] Figure 3 is schematically illustrated Figure 1 and Figure 2 an exploded perspective view of the energy storage system shown in;

[0031] Figure 4 is schematically illustrated Figures 1 - 3 an exploded perspective view of the door of the energy storage system shown in;

[0032] Figure 5 is Figure 4 an exploded perspective view of the door shown in;

[0033] Figure 6 is Figure 4 and Figure 5 a perspective view of the door shown in;

[0034] Figure 7 is Figures 4 - 6 a top cross-sectional view of the door shown in;

[0035] Figure 8 and Figure 9 is Figures 1 - 7 a schematic diagram of the operation process of the energy storage system shown in;

[0036] Figure 10 To schematically illustrate a perspective view of an energy storage system according to another embodiment of the present disclosure;

[0037] Figure 11 To schematically illustrate Figure 10 a cross-sectional perspective view of the configuration of the energy storage system shown in

[0038] Figure 12 To schematically illustrate Figure 11 a side cross-sectional view of the energy storage system shown in

[0039] Figure 13 To schematically illustrate Figure 11 and Figure 12 a front cross-sectional view of the energy storage system shown in

[0040] Figure 14 To schematically illustrate Figures 11 - 13 an exploded perspective view of the cabinet of the energy storage system shown in

[0041] Figure 15 To schematically illustrate Figures 11 - 14 a perspective view of the guiding member of the energy storage system shown in

[0042] Figure 16 To schematically illustrate Figure 15 a cross-sectional view of the guiding member shown in

[0043] Figure 17 To schematically illustrate Figures 11 - 14 a cross-sectional perspective view of the main discharge member of the energy storage system shown in

[0044] Figure 18 To schematically illustrate Figure 17 an exploded perspective view of the main discharge member shown in

[0045] Figures 19 - 23 For Figures 11 - 18 a schematic diagram of the operation process of the energy storage system shown in

[0046] Figure 24 To schematically illustrate a plan view of an energy storage system according to another embodiment of the present disclosure;

[0047] Figure 25 To schematically illustrate Figure 24 a cross-sectional view of the energy storage system shown in

[0048] Figure 26 A schematic diagram of a state of discharging a flame or gas from an exhaust port;

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

[0050] Figure 28 For Figure 27 a schematic diagram of the operation of the energy storage system shown in Detailed Description of the Invention

[0051] In this document, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The terms or words used in this specification and claims should not be construed as limited to their ordinary or dictionary meanings, but should be interpreted as having meanings and concepts consistent with the technical idea of the present disclosure based on the principle that the inventor can be his / her own lexicographer to appropriately define the terms.

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

[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, directly connected to, or directly coupled to the other element or layer, or there may also be one or more intervening elements or layers. 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 the first element is described as being "coupled" or "connected" to the 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, for clarity of illustration, the dimensions of various elements, layers, etc. may be exaggerated. The same reference numerals refer to the same or similar elements. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Further, the use of "may" in describing embodiments of the present disclosure refers to "one or more embodiments of the present disclosure". Expressions such as "at least one of..." and "any of..." when following a list of elements modify the entire list of elements and not individual elements in the list. When phrases such as "at least one of A, B, and C", "at least one of A, B, or C", "at least one selected from the group of A, B, and C", or "at least one selected from among A, B, and C" are used to indicate a list of elements A, B, and C, the phrase can refer to any one of A, B, and C and all suitable combinations or subsets, such as A, B, C, A and B, A and C, B and C, or A and B and C. As used herein, the term "use" can be considered synonymous with the term "utilize". As used herein, the terms "substantially", "about", and similar terms are used as approximating terms and not terms of degree, and are intended to account for the inherent variability of measured or calculated values that would be recognized by a person of ordinary skill in the art.

[0055] It should be understood that although the terms "first", "second", "third", etc. may be used 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 may be referred to as a second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0056] For ease of description, spatial relative terms (such as "beneath", "below", "lower", "above", "upper", etc.) may be used herein to describe the relationship of one element or feature to another element or feature as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "beneath" or "below" another element or feature would then be oriented "above" or "over" the other element or feature. Thus, the term "below" can encompass both an upper and a lower orientation. The device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatial relative descriptors used herein should be interpreted accordingly.

[0057] The terms used in this document are for the purpose of describing embodiments of the present disclosure and are not intended to limit the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form "a" is intended to also include the plural form. It should be further understood that the terms "comprising" and / or "including" when used in this specification specify the presence of the 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] In addition, any numerical range disclosed and / or recited herein is intended to include all sub-ranges of the same numerical precision that are included within the recited range. For example, the range "1.0 to 10.0" is intended to include all sub-ranges between (and including) the recited minimum value 1.0 and the recited maximum value 10.0, i.e., all sub-ranges having a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0 (e.g., such as 2.4 to 7.6). Any maximum numerical limitation recited herein is intended to include all lower numerical limitations included therein, and any minimum numerical limitation recited in this specification is intended to include all higher numerical limitations included therein. Accordingly, the applicant reserves the right to amend this specification, including the claims, to expressly recite any sub-ranges that are included within the ranges expressly recited herein.

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

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

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

[0062] In addition, it should be understood that when an element is referred to as being "coupled", "linked" or "connected" to another element, these elements can be directly "coupled", "linked" or "connected" to each other, or there can be one or more intermediate elements therebetween through which the element can be "coupled", "linked" or "connected" to the other element. In addition, when a component is referred to as being "electrically coupled" to another component, the component can be directly electrically connected to the other component, or there can be one or more intermediate components therebetween such that the component and the other component 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 multiple items. Unless otherwise specified, when stating "C to D", it means C or more and D or less.

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

[0065] Figure 1 To schematically illustrate a perspective view of an energy storage system according to an embodiment of the present disclosure, Figure 2 To schematically illustrate Figure 1 a sectional perspective view of the energy storage system shown in Figure 3 To schematically illustrate Figure 1 and Figure 2 an exploded perspective view of the energy storage system shown in

[0066] Referring to Figures 1 - 3 According to an exemplary embodiment, the energy storage system includes a cabinet 100, a battery module 200, and a door 300.

[0067] The cabinet 100 can form the 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.

[0068] The longitudinal direction of the cabinet 100 to be described below can be a direction parallel to the Figure 1 X-axis in Figure 1 The width direction of the cabinet 100 can be a direction parallel to the Figure 1 Y-axis in

[0069] The height direction of the cabinet 100 can be a direction parallel to the

[0070] Figure 1 Z-axis in

[0069] The height direction of the cabinet 100 can be a direction perpendicular to the ground, that is, a direction parallel to the vertical direction.

[0070] The cabinet 100 may include a frame body 110, a support rail 120, and a cover 130.

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

[0071] The frame body 110 may 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 placed (or positioned) on the ground (e.g., the base 111 can be supported by the ground). The 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 (e.g., 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 and the like.

[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 Figure 3 shown, the first outer frame 112 and the second outer frame 113 can be provided at two end portions (e.g., opposite end portions) of the base 111 in the width direction. 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 (e.g., 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 interval of the first outer frames 112.

[0075] 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 provided 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 (e.g., 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 interval of the first outer frames 112.

[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 rail 120 can be disposed inside the frame body 110 and can support the battery module 200 inside the frame body 110. The support rail 120 can have a bar shape and have a longitudinal direction extending in the longitudinal direction of the cabinet 100. The support rail 120 can have a substantially "L" - shaped cross - section. The support rail 120 can be provided as a plurality of support rails 120. All 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 disposed 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 arranged 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 disposed inside the first accommodation space 115 can be stacked in the height direction of the first accommodation space 115, that is, stacked at a certain interval (for example, at a set interval) in the vertical direction.

[0079] The plurality of support rails 120 disposed 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 arranged 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 disposed inside the second accommodation space 116 can be stacked in the height direction of the second accommodation space 116, that is, stacked at a certain interval (for example, at a set interval) in the vertical direction.

[0080] The cover 130 can be disposed 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 disposed to surround (for example, cover) the side surface of the frame body 110. In the illustrated embodiment, the side surface of the frame body 110 can be the 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 covers 131 may be provided as a pair of side covers 131. The pair of side covers 131 may be arranged to be spaced apart from each other in the width direction of the cabinet 100. The pair of side covers 131 may be arranged to surround (e.g., cover) two side surfaces of the frame body 110. For example, the inner surface of one of the pair of side covers 131 may be arranged to face the outer surface of the first outer frame 112. The inner surface of the other of the pair of side covers 131 may be arranged to face the outer surface of the second outer frame 113. The side covers 131 may be fixed to the base 111 by welding, bolting, etc.

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

[0085] The top cover 133 may be arranged to surround (e.g., cover) the upper surface of the frame body 110. The top cover 133 may have a substantially flat plate shape. The inner surface of the top cover 133 may be arranged to face the upper end portions of the plurality of first outer frames 112, the upper end portions of the plurality of second outer frames 113, and the upper end portions of the plurality of inner frames 114. The end cover 132 may 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, etc.

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

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

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

[0089] The battery module 200 may be placed on the support rail 120 and supported by the support rail 120. For example, the lower surface of the battery module 200 may contact a pair of support rails 120 provided 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] The distance between a pair of support rails 120 vertically adjacent to each other inside the first accommodation space 115 or the second accommodation space 116 may be greater than the height of any one battery module 200. That is, the height of the battery module 200 may be less than the spacing between a pair of support rails 120 vertically adjacent to each other inside the first accommodation space 115 or the second accommodation space 116.

[0091] An exhaust port B may be formed in the upper surface of the battery module 200 to discharge flames or gases generated when the battery cells accommodated inside the battery module burn or undergo thermal runaway from the battery module 200. The exhaust port B may be provided as a plurality of exhaust ports B. The plurality of exhaust ports B may 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 communicating with an external device and a control device for controlling power transmission may be installed on the front surface of the battery module 200 on the opposite side of the end cap 132.

[0093] The door 300 may be installed to be movable relative to the frame body 110 and open and close the internal space of the cabinet 100 depending on the direction of movement. The door 300 may be provided to face the side surface of the battery module 200, for example, the front surface of the battery module 200.

[0094] Figure 4 For schematically illustrating Figures 1 - 3 the exploded perspective view of the door shown in Figure 5 For illustrating from different perspectives Figure 4 the exploded perspective view of the door shown in Figure 6 For illustrating from different perspectives Figure 4 the perspective view of the door shown in Figure 7 For illustrating Figure 4Top cross-sectional view of the door shown in

[0095] Reference Figures 4 - 7 , the door 300 may include a first door frame 310, a second door frame 320, a door passage 330, an inlet hole (e.g., inlet opening) 340, an outlet hole (e.g., outlet opening) 350, and a blocking member 360.

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

[0097] The first door frame 310 may be rotatably (e.g., pivotally) mounted on the front surface of the frame body 110. For example, one side of the first door frame 310 may be rotatably connected to a door bracket 301 mounted on the front portion of the frame body 110 by a pin, hinge, etc. One side of the first door frame 310 may be rotatably supported about an axis in the height direction (i.e., vertical direction) of the cabinet 100. The first door frame 310 may rotate clockwise or counterclockwise about one of its sides 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 may be parallel to the width direction of the cabinet 100 (e.g., the second direction). The thickness direction of the first door frame 310 may be parallel to the longitudinal direction of the cabinet 100 (e.g., the first direction).

[0099] The second door frame 320 may form the appearance of the outer side of the door 300. The second door frame 320 may have a substantially flat plate shape. The second door frame 320 may be arranged to face the first door frame 310 outside the first door frame 310. For example, the inner surface of the second door frame 320 may be arranged to face the outer surface of the first door frame 310 (i.e., the surface of the first door frame 310 recessed in a concave shape). The inner surface of the second door frame 320 may be fixed to the outer surface of the first door frame 310 by welding, bolting, etc.

[0100] The door passage 330 may be provided between the first door frame 310 and the second door frame 320. An example of the door passage 330 may include an empty space formed between the first door frame 310 and the second door frame 320 because of (e.g., to accommodate) a central portion of the outer surface of the first door frame 310 that is recessed in a concave shape.

[0101] The door passage 330 may include a first inlet end portion 331 and a second inlet end portion 332 that are spaced apart from each other.

[0102] The first inlet end portion 331 and the second inlet end portion 332 may 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 inlet end portion 331 and the second inlet end portion 332 may be spaced apart from each other in a direction parallel to the width direction of the first door frame 310 and intersecting the thickness direction of the first door frame 310. The distance between the first inlet end portion 331 and the second inlet end portion 332 may be less than the width of the first door frame 310 and the second door frame 320.

[0103] A gasket may be installed between the first door frame 310 and the second door frame 320. The gasket may be made of an elastically deformable material (such as rubber, silicone, etc.). The gasket may have a band shape with an open central portion and may be provided to surround the door passage 330 (e.g., extend around the perimeter of the door passage 330). Each of the two surfaces of the gasket may 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 may prevent flames or smoke introduced into the door passage 330 from being discharged to the outside through the gap between the first door frame 310 and the second door frame 320.

[0104] The inlet hole 340 may be a hole (e.g., an opening) that passes through the first door frame 310 in the thickness direction of the first door frame 310 and has a vertically extending shape. When a fire occurs inside the cabinet 100, the inlet hole 340 may allow flames or gases to be introduced into the door passage 330.

[0105] The inlet hole 340 may include a first inlet hole 341 and a second inlet hole 342.

[0106] The first inlet hole 341 may be formed in one side of the first door frame 310 and may be connected to the first inlet end portion 331. The first inlet hole 341 may allow the 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 may pass through the first door frame 310 in a direction crossing the 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 first inlet hole 341 may be changed by the door passage 330, and its moving speed may be reduced.

[0107] The first inlet hole 341 may 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 may be arranged in sequence from the top of the first door frame 310 downward. Accordingly, regardless of the discharge position, the first inlet hole 341 may 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.

[0109] The first upper inlet hole 341a, the first middle inlet hole 341b, and the first lower inlet hole 341c may be separated from each other. For example, the end portions of the first upper inlet hole 341a, the first middle inlet hole 341b, and the first lower inlet hole 341c may be set to be spaced apart from each other by a certain distance (e.g., a predetermined distance) in the vertical direction. Accordingly, when the flame or gas discharged from the battery module 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 may prevent foreign matters from accumulating 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 may 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 may be arranged in parallel in the width direction of the first door frame 310.

[0111] The cross-sectional shapes of the first upper inlet hole 341a, the first middle inlet hole 341b, and the first lower inlet hole 341c may have various shapes, such as circular shapes, elliptical shapes, and other polygonal shapes other than the Figure 4 and Figure 5 shown rectangular shape, etc.

[0112] A second inlet hole 342 may be formed in the other side of the first door frame 310 and may be connected to the second inlet end portion 332. The second inlet hole 342 may be spaced apart from the first inlet hole 341 in the width direction of the first door frame 310. The second inlet hole 342 may allow flames or gases 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 may pass through the first door frame 310 in a direction crossing the 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 flames or gases introduced into the second inlet hole 342 may be changed by the door passage 330, and its moving speed may be reduced.

[0113] The second inlet hole 342 may 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 may be arranged in sequence from the top of the first door frame 310 downward. Accordingly, regardless of the discharge position, the second inlet hole 342 may allow flames or gases 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 may be separated from each other. For example, the end portions of the second upper inlet hole 342a, the end portions of the second middle inlet hole 342b, and the end portions of the second lower inlet hole 342c may be set to be spaced apart from each other by a certain distance (e.g., a predetermined distance) in the vertical direction. Accordingly, when the flames or gases discharged from the battery module 200 pass 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 may prevent foreign matters from accumulating 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 may 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 may be arranged in parallel in the width direction of the first door frame 310.

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

[0118] The discharge hole 350 may have a shape of a hole (e.g., an opening) that passes through the second door frame 320 in the thickness direction of the second door frame 320 and extends vertically. The discharge hole 350 may discharge the flame or gas introduced into the door passage 330 from the inside of the door passage 330. The discharge hole 350 may be set to be misaligned (e.g., offset) from the first inlet hole 341 and the second inlet hole 342. For example, the discharge hole 350 may be set at a position that does not directly face the first inlet hole 341 and the second inlet hole 342. In one embodiment, the discharge hole 350 may be set between the first inlet hole 341 and the second inlet hole 342 and may be connected to a region (e.g., may be in fluid communication with the region) of the central portion of the door passage 330. The width of the discharge hole 350 may be smaller than the distance between the first inlet hole 341 and the second inlet hole 342. Accordingly, the discharge hole 350 may guide the flame or gas introduced into the first inlet hole 341 and the second inlet hole 342 to be discharged from the door passage 330 after sufficiently moving in the extending direction of the door passage 330, so that the moving speed of the flame or gas can be reduced more effectively.

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

[0120] The blocking member 360 may be set to face the discharge hole 350 and block the flame from passing through after the flame is discharged from the discharge hole 350. At the same time, the blocking member 360 may allow the gas discharged from the discharge hole 350 to pass through.

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

[0122] The blocking filter 361 may have a plate shape, and a plurality of meshes that allow the gas discharged from the discharge hole 350 to pass through but block the passage of flames are arranged therein in a lattice pattern. The blocking filter 361 may be made of a highly heat-resistant material (e.g., at least one of stainless steel, copper, nickel, titanium, silver, tungsten, aluminum, or an alloy thereof). The blocking filter 361 may be arranged to face the discharge hole 350 outside the second door frame 320. In another embodiment, the blocking filter 361 may be arranged to face the discharge hole 350 inside the door passage 330. The blocking filter 361 may be provided as a plurality of blocking filters 361. The plurality of blocking filters 361 may be stacked in the direction in which the discharge hole 350 passes through the second door frame 320 or in the thickness direction of the second door frame 320.

[0123] The fixing bracket 362 may support the blocking filter 361 relative to the second door frame 320. The fixing bracket 362 may be arranged to face the outer surface of the second door frame 320, and the blocking filter 361 is interposed therebetween. The inner region of the fixing bracket 362 may be arranged to surround (e.g., extend around) the edge of the blocking filter 361 and may be fixed to the edge of the blocking filter 361 by welding, bolting, etc. The outer region of the fixing bracket 362 may be in contact with the second door frame 320 and may be fixed to the second door frame 320 by welding, bolting, etc.

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

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

[0126] The cover 370 may include a cover body 371 and a guiding hole 372.

[0127] The cover body 371 may have a box shape with an empty interior and an open side. The cover body 371 may be arranged such that its open side faces the blocking member 360. The area of the cover body 371 may be larger than the area of the blocking member 360, and the edge region of the cover body 371 may be fixed to the outer surface of the second door frame 320 by welding, bolting, etc. Accordingly, the cover body 372 may 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 guiding hole 372 may be formed to pass through the cover body 371 and guide the discharge direction of the gas introduced into the cover body 371. Accordingly, the guiding hole 372 may guide the gas discharged to the outside of the cabinet 100 to move in one direction (e.g., a predetermined direction), thus preventing damage to adjacent parts sensitive to contact with the gas, etc.

[0129] The guiding hole 372 can pass through the side surface of the cover body 371 and can extend in the vertical direction. For example, the guiding hole 372 can be provided as a pair of guiding holes 372. The pair of guiding holes 372 can be arranged 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 guiding hole 372 can be formed as a single guiding hole 372, and can be arranged to pass through the upper surface or the lower surface of the cover body 371 and face upward or downward. Accordingly, the guiding hole 372 can prevent the gas discharged from the cabinet 100 from spraying towards the workers located near the cabinet 100.

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

[0131] The first passage 400 can be arranged to face the exhaust port B of the battery module 200, and can provide a main movement 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 adjacent battery modules 200 arranged vertically (e.g., stacked). 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 arranged 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 arranged to be spaced apart from each other in the first direction. The first end portion 410 can be arranged to face the inner surface of the door 300, for example, to be 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 arranged to face the inner surface of the end cap 132 and be spaced apart from the inner surface of the end cap 132 by a certain distance (e.g., a predetermined distance).

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

[0136] The first separator P1 can be disposed between the side cover 131 and the battery module 200. The first separator P1 can have a substantially flat plate shape. Each of the two surfaces (e.g., opposite surfaces) of the first separator P1 can be arranged to face in parallel one of the inner surface of the side cover 131 and the side surface of the battery module 200. The first separator P1 can be made of a material having a heat resistance and an insulating ability that are relatively higher than those of the side cover 131. For example, the side cover 131 can be made of a metal material (such as steel or aluminum, etc.), and the first separator P1 can be made of a material such as mica. Accordingly, in the event of a fire, the first separator 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 by the flame, thereby preventing the fire from spreading to adjacent devices installed outside the cabinet 100.

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

[0138] The plurality of first separators P1 facing the battery module 200 provided inside the first accommodation space 115 can be respectively disposed between a pair of adjacent first outer frames 112. The plurality of first separators P1 facing the battery module 200 provided inside the second accommodation space 116 can be respectively disposed between a pair of adjacent second outer frames 113. The inner surface of the first separator P1 can be in contact with the side surface of the support rail 120. Accordingly, the first separator P1 can prevent the flame or 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 separator P2 can be disposed between the battery modules 200 arranged in different rows. For example, the second separator P2 can be disposed between the first accommodation space 115 and the second accommodation space 116. The second separator P2 can have a substantially flat plate shape. Each of the two surfaces (e.g., opposite surfaces) of the second separator P2 can be arranged to face in parallel one of the side surfaces of the battery module 200 provided inside the first accommodation space 115 and the side surface of the battery module 200 provided inside the second accommodation space 116. The second separator P2 can be made of the same material as that of the first separator P1. Accordingly, the second separator P2 can prevent a fire occurring in either the first accommodation space 115 or the second accommodation space 116 from spreading to the other of the first accommodation space 115 and the second accommodation space 116.

[0140] The second separator P2 may be provided as a plurality of second separators. The plurality of second separators P2 may be respectively disposed between a pair of adjacent inner frames 114. The inner surface of the second separator P2 may contact the side surface of the support rail 120. Accordingly, the second separator P2 together with the first separator P1 may prevent the flame or smoke 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 exemplary embodiments of the present disclosure will be described.

[0142] Figure 8 and Figure 9 For schematically illustrating Figures 1 - 7 the view of the operation process of the energy storage system described with reference.

[0143] Reference Figure 8 and Figure 9 , 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 may be introduced into the first passage 400 facing the exhaust port B of the corresponding battery module 200.

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

[0145] The flame or gas discharged from the first end portion 410 may 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 respectively connected to the first inlet hole end portion 331 and the second inlet hole end portion 332 (for example, are in fluid communication with the first inlet hole end portion 331 and the second inlet hole end portion 332 respectively), the flame or gas introduced into the first inlet hole 341 or the second inlet hole 342 may move (or be guided) in the extending direction of the door passage 330 to the area of the central portion of the door passage 330.

[0147] In this process, the extending 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, so the moving speed of the flame or gas introduced into the door passage 330 may be reduced.

[0148] The flame or gas moving to the central portion of the door passage 330 may be introduced into the discharge hole 350 and may contact the blocking filter 361. The blocking filter 361 may block the flame from passing through 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 meshes of the barrier filter 361 and can be transmitted into the hood body 371.

[0150] The gas introduced into the hood body 371 can ultimately be discharged upward or downward from the interior of the cabinet 100 through the guiding hole 642.

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

[0152] Figure 10 FIG. is a perspective view schematically illustrating an energy storage system according to another embodiment of the present disclosure. Figure 11 For schematically illustrating Figure 10 a cross-sectional perspective view of the energy storage system shown in Figure 12 For schematically illustrating Figure 10 and Figure 11 a side cross-sectional view of the energy storage system shown in, attached Figure 13 For schematically illustrating Figures 10 - 12 a front cross-sectional view of the energy storage system shown in, and Figure 14 For schematically illustrating Figures 10 - 13 an exploded perspective view of the cabinet of the energy storage system shown in.

[0153] Referring to Figures 10 - 14 , the energy storage system according to the exemplary embodiment may further include a second passage 500, a guiding member 600, and a main discharge member (also referred to as a discharge member) 700.

[0154] The energy storage system according to the exemplary embodiment may differ from the energy storage system described above with reference to Figures 1 - 9 in that the second passage 500, the guiding member 600, and the main discharge member 700 are further included.

[0155] Accordingly, when describing the energy storage system according to the present embodiment, the second passage 500, the guiding member 600, and the main discharge member 700 that are not described with reference to Figures 1 - 9 will be mainly described.

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

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

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

[0159] Figure 15 For schematically illustrating the perspective view of the guiding member of the energy storage system described above with reference to Figures 10 - 14 and Figure 16 for schematically illustrating the cross-sectional view of the guiding member shown in Figure 15 In the cross-sectional view of the guiding member shown in

[0160] With reference to Figure 15 and Figure 16 the guiding member 600 can include guiding vanes 610 and a sealing member 620.

[0161] The guiding vane 610 can block the discharge of the flame or gas introduced into the first channel 400 from the first end portion 410. The guiding vane 610 may have a substantially plate shape and may be disposed between the first end portion 410 and the door 300. Each of the two surfaces of the guiding vane 610 may be set to face one of the first end portion 410 and the door 300. The vertical width of the guiding vane 610 may be greater than the vertical width of the first channel 400.

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

[0163] The guiding vane 610 may be made of a metal material having high rigidity (such as steel, etc.) to prevent damage caused by the pressure of the gas or the like introduced into the first channel 400.

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

[0165] The main discharge member 700 may be connected to the second channel 500 and may discharge the gas introduced into the second channel 500 to the outside of the cabinet 100. Further, the main discharge member 700 may block the discharge of the flame introduced into the second channel 500 to the outside of the cabinet 100. Accordingly, the main discharge member 700 can prevent the internal pressure of the cabinet 100 from increasing excessively in the event of a fire and can also prevent the spread of the fire caused by the outflow of the flame.

[0166] Figure 17 For schematically illustrating Figures 10 - 16 a cross-sectional perspective view of the main discharge member of the energy storage system described above, andFigure 18 For illustrative example Figure 17 An exploded perspective view of the main discharge member shown in

[0167] Reference Figure 17 and Figure 18 , the main discharge member 700 may include a discharge plate 710, a third channel 720, a main blocking member 730, and a main cover 740.

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

[0169] Discharge holes (e.g., discharge openings) 711 may be formed in the discharge plate 710 to provide a path for the discharge of flames or gases (to be described below) introduced into the third channel 720. The discharge holes 711 may vertically penetrate the discharge plate 710. The discharge holes 711 may be provided as a plurality of discharge holes 711. The plurality of discharge holes 711 may be disposed at intervals from each other in the discharge plate 710.

[0170] An example of the third channel 720 may 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 channel 720 may penetrate the top cover 133 and may be connected to the upper end portion of the second channel 500. The other side of the third channel 720 may be connected to the discharge holes 711. The other side of the third channel 720 may be connected to all of the plurality of discharge holes 711. The third channel 720 may be disposed to intersect the second channel 500. For example, the third channel 720 may be disposed perpendicular to the height direction of the cabinet 100 (e.g., may extend perpendicular to the height direction of the cabinet 100). Accordingly, the third channel 720 may reduce the moving speed of the flames transmitted from the second channel 500, and thus may further improve the flame blocking performance of the main blocking member 730, which will be described below.

[0171] The main blocking member 730 may be disposed to face the discharge holes 711 and may block the flames introduced into the third channel 720 from passing through the discharge holes 711. At the same time, the main blocking member 730 may allow the gases introduced into the third channel 720 to pass through the discharge holes 711.

[0172] The main blocking member 730 may include a main blocking filter 731 and a filter bracket 732.

[0173] The main blocking filter 731 may have a plate shape and include a plurality of mesh holes arranged in a lattice shape to allow the gas discharged from the discharge hole 711 to pass through while blocking the passage of flames. The main blocking filter 731 may be made of a material having high heat resistance (e.g., at least one of stainless steel, copper, nickel, titanium, silver, tungsten, aluminum, or an alloy thereof). The main blocking filter 731 may be arranged to face the discharge hole 711 in the discharge plate 710. In another embodiment, the main blocking filter 731 may be arranged to face the discharge hole 711 inside the third passage 720. The main blocking filter 731 may be provided as a plurality of main blocking filters 731. The plurality of main blocking filters 731 may be stacked in the direction in which the discharge hole 711 passes through the discharge plate 710 (i.e., in the vertical direction).

[0174] The filter bracket 732 may support the main blocking filter 731 relative to the discharge plate 710. The filter bracket 732 may be arranged to face the discharge plate 710, with the main blocking filter 731 therebetween. The inner region of the filter bracket 732 may be arranged to surround the edge of the main blocking filter 731 (e.g., extend around the edge of the main blocking filter 731) and may be fixed to the edge of the main blocking filter 732 by welding, bolting, etc. The outer region of the filter bracket 732 may contact the discharge plate 710 and may be fixed to the discharge plate 710 by welding, bolting, etc.

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

[0176] The main cover 740 may include a main cover body 741 and a main guiding hole 742.

[0177] The main cover body 741 may have a box shape with an empty interior and an open side. The main cover body 741 may be arranged such that its open side faces the main blocking member 730. The area of the main cover body 741 may be larger than the area of the main blocking member 730, and the edge region of the main cover body 741 may be fixed to the discharge plate 710 by welding, bolting, etc. Accordingly, the main cover body 741 may prevent foreign substances 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 guiding 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 guiding hole 742 can guide the gas discharged to the outside of the cabinet 100 to move in one direction (for example, a predetermined direction), so as to prevent damage to adjacent parts sensitive to contact with the gas, etc. The main guiding hole 742 can vertically pass through the side surface of the main cover body 741. The main guiding hole 742 can be provided as a plurality of main guiding holes 742. The plurality of main guiding holes 742 can be arranged at intervals 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 - 23 To schematically illustrate the operation process of the energy storage system described above with reference to Figures 10 - 18 is a view of the operation process of the energy storage system.

[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 channel 400 facing the exhaust port B of the corresponding battery module 200.

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

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

[0184] Referring to Figure 21 , the flame or gas moving towards the second end portion 420 can be introduced into the second channel 500. In the illustrated embodiment, the second channel 500 is arranged to cross the first channel 400, so the moving speed of the flame or gas introduced into the second channel 500 can be reduced.

[0185] The flame or gas introduced into the second channel 500 can move (or be guided) in the extending direction of the second channel 500 towards the upper end portion of the second channel 500 and be introduced into the third channel 720. In the illustrated embodiment, the third channel 720 is arranged to cross the second channel 500, so the moving speed of the flame or gas introduced into the second channel 500 can be further reduced.

[0186] In the illustrated embodiment, the volume of the second channel 500 is larger than the volume of the first channel 400, so that the flame or gas introduced into the first channel 400 can continuously move toward the second channel 500 without any additional external force.

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

[0188] The flame introduced into the discharge hole 711 can contact the main blocking filter 731, and the main blocking 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 meshes of the main blocking filter 731 and can be transmitted into the main cover body 741.

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

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

[0192] After that, for the flame or gas discharged to the outside of the first end portion 410, the same operations as those described above with reference to Figure 8 and Figure 9 can occur.

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

[0194] The energy storage system according to the illustrated embodiment may be different from the energy storage system described above with reference to Figures 10 - 23 in the configuration of the guiding member 600.

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

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

[0197] Reference Figures 24 - 26, the guiding member 600 according to the illustrated embodiment may further include a guiding skylight 630.

[0198] The guiding skylight 630 may be disposed inside the first passage 400. The inside of the guiding skylight 630 may be empty, and the lower surface of the guiding skylight 630 may be arranged to face the exhaust port B of the battery module 200. The lower surface of the guiding skylight 630 may be open. Accordingly, the flame or gas discharged from the exhaust port B may be introduced into the guiding skylight 630. The outer peripheral surface of the guiding skylight 630 facing the second end portion 420 may be open. Accordingly, the guiding skylight 630 may change the 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 transmitted to the second passage 500 more quickly.

[0199] The guiding skylight 630 may be provided as a plurality of guiding skylights 630. The plurality of guiding skylights 630 may be respectively arranged to face each exhaust port B. The plurality of guiding skylights 630 may be integrally connected by a plate or the like, or may be separated from each other.

[0200] Hereinafter, an energy storage system according to another embodiment of the present disclosure will be described.

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

[0202] Refer to Figure 27 and Figure 28 , the energy storage system according to the illustrated embodiment may further include a backflow prevention member 800.

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

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

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

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

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

[0208] According to an embodiment of the present disclosure, by allowing the gas to be discharged to the outside of the cabinet while blocking the discharge of the flame to the outside of the cabinet, the spread of the fire caused by the outflow of the flame can be prevented.

[0209] According to an embodiment of the present disclosure, the door is provided to face the side surface of the battery module. Therefore, due to the gas introduced from the outside during the normal operation of the battery module, the cooling efficiency of the battery module can be improved.

[0210] According to an embodiment of the present disclosure, the guiding hole is provided to face upward or downward. Therefore, the gas discharged to the outside of the cabinet can be guided to move in a direction that prevents damage to adjacent parts sensitive to contact with the gas, etc.

[0211] According to an embodiment of the present disclosure, by allowing the flame or gas generated due to the combustion or thermal runaway of the battery module to move through a set path, the damage caused by the fire can be reduced.

[0212] According to an embodiment of the present disclosure, the first partition member and the second partition member can be used to prevent the fire occurring in any one of the battery modules from spreading to adjacent battery modules or adjacent devices installed outside the cabinet.

[0213] According to an embodiment of the present disclosure, by changing the movement path of the flame multiple times, the transmission speed of the flame can be reduced, and the flame blocking performance of the blocking member can be further improved.

[0214] However, aspects and features of the present disclosure are not limited to those described above, and other aspects and features not mentioned will be clearly understood by those skilled in the art.

[0215] Although the present disclosure has been described with reference to the embodiments shown in the drawings, these embodiments are merely illustrative, and it should be understood that those skilled in the art can derive various modifications and other equivalent embodiments based on the embodiments.

Claims

1. A door, comprising: 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 entry aperture extending through the first door frame and configured to allow flame or gas to be introduced into the door passage; a vent hole extending through the second door frame and configured to allow flames or gases to vent from the door passage; as well as The blocking member faces the discharge hole and is configured to block the flame discharged from the discharge hole from passing therethrough.

2. The door of claim 1, wherein the door channel has a first entrance end portion and a second entrance end portion spaced apart from each other, and Wherein the inlet hole comprises: a first inlet aperture connected to said first inlet end portion; as well as A second inlet aperture is connected to the second inlet end portion. 3 . The door according to claim 2 , wherein the first entrance end portion and the second entrance end portion are spaced apart from each other in a direction crossing a direction in which the entrance hole passes through the first door frame. 4 . The door according to claim 2 , wherein the first entrance end portion and the second entrance 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 aperture comprises: a first upper entrance hole; a first lower inlet opening below said first upper inlet opening; as well as A first intermediate inlet hole is between the first upper inlet hole and the first lower inlet hole. 6 . The door of claim 5 , wherein the first upper entrance hole, the first lower entrance hole, and the first intermediate entrance hole are separated from each other.

7. The door of claim 2, wherein the second inlet aperture comprises: a second upper entrance hole; a second lower inlet opening below the second upper inlet opening; as well as A second intermediate inlet hole is between the second upper inlet hole and the second lower inlet hole.

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

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

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

11. The door according to claim 1, wherein a ratio of an area of ​​the inlet hole to an area of ​​the discharge hole ranges between 50% and 80%.

12. The door according to claim 1, wherein the blocking member comprises: a blocking filter facing the discharge hole and having a plurality of mesh holes; as well as A fixing bracket is configured to fix the blocking filter to the second door frame. 13 . The door according to claim 1 , further comprising a cover facing the blocking member and configured to guide discharge of the gas having passed through the blocking member.

14. The door of claim 13, wherein the cover comprises: a cover body facing the blocking member and fixed to the second door frame; as well as A guide hole passes through the cover body and is connected to the discharge hole. The door according to claim 14 , wherein the guide hole faces upward or downward.

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

17. An energy storage system comprising: Cabinets; A plurality of battery modules are inside the cabinet; as well as a door configured to open or close an internal space in the cabinet, the door being a 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 according to claim 17, wherein the door faces a side surface of the battery module.

19. The energy storage system according to claim 17, further comprising: a first channel 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 the flame or gas discharged from the exhaust port in the first direction; a second passageway within the cabinet and connected to the second end portion; as well as A discharge member is connected to the second passage and is configured to allow the gas introduced into the second passage to be discharged outside from the cabinet.

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

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