Energy storage system

Abstract

An energy storage system capable of holding a fire suppression conduit in place is disclosed. An energy storage system disclosed in an example embodiment includes: a bracket frame accommodating a battery module; a subframe fixed to the holder frame and facing the battery module; a guide rail concavely formed at one surface of the subframe; the fire extinguishing pipeline is arranged in the guide rail and provided with a spraying hole, and fire extinguishing liquid is sprayed through the spraying hole; a heat detection member provided to surround the fire extinguishing duct and to open or close the injection hole in conjunction with a temperature change; and a first separation prevention member disposed between the guide rail and the heat detection member and preventing the fire extinguishing pipe from being separated from the guide rail. In the energy storage system according to the present disclosure, the first disengagement prevention member restricts rotation of the fire extinguishing duct about the central axis thereof within the guide rail, thereby preventing a change in the injection direction of the injection hole while ensuring reliability of fire extinguishing performance.

Description

Technical Field

[0001] The present disclosure relates to energy storage systems. Background Art

[0002] In general, an energy storage system is a device capable of storing surplus electricity or electricity generated using renewable energy. A plurality of racks may be housed in a container, each rack housing a plurality of battery modules therein. A battery module may include a plurality of secondary batteries electrically interconnected to each other and arranged in various structures.

[0003] The energy storage system may be provided with a direct injection system for spraying a fire extinguishing liquid directly onto the battery module in the event of a fire. Such a direct injection system may be implemented by placing a fire extinguishing pipe capable of spraying the fire extinguishing liquid onto the battery module. However, if the fire extinguishing pipe is rotated or disengaged from the correct position, the fire extinguishing liquid may be sprayed in a direction different from the preset spraying direction, making it difficult to extinguish the fire quickly and causing damage to the fire extinguishing pipe due to interference with the battery module. Summary of the invention

[0004] Embodiments of the present disclosure provide an energy storage system capable of keeping a fire extinguishing pipe in place.These and other aspects and features of the present disclosure will be described in or will become apparent from the following description of embodiments of the present disclosure.

[0005] In order to solve the above technical problems, according to one or more embodiments of the present disclosure, an energy storage system includes: a support frame, accommodating a battery module; a sub-frame, fixed to the support frame and facing the battery module; a guide rail, recessedly formed at one surface of the sub-frame; a fire extinguishing pipe, arranged in the guide rail and having a spray hole, through which a fire extinguishing liquid is sprayed; a thermal detection component, arranged to surround the fire extinguishing pipe and open or close the spray hole in combination with temperature changes; and a first anti-detachment component, arranged between the guide rail and the thermal detection component and preventing the fire extinguishing pipe from detaching from the guide rail.

[0006] The first separation prevention member may include: a slit formed through the guide rail; and a stopper protruding from the heat detection member toward the slit and inserted into the slit.

[0007] The stopper may have a smaller width than the slit.

[0008] The slit may consist of a plurality of slits symmetrically disposed on both sides of the guide rail, and the stopper may consist of a plurality of stoppers symmetrically disposed on both sides of the heat detection member.

[0009] The fire extinguishing pipe may be inserted into the guide rail in a first direction through an open surface formed at an upper surface of the guide rail, and the slit may include: a first slit extending in the first direction; and a second slit connected to the first slit and extending in a direction crossing the first direction.

[0010] The first slit may include: a first end connected to the second slit; and a second end located at an opposite side of the first end and penetrating the sub-frame.

[0011] The second slit may extend in the longitudinal direction of the guide rail.

[0012] The second slit may have a smaller width than the first slit.

[0013] The first anti-separation member may include: a groove concavely formed at an outer surface of the heat detection member; and a stopper protruding from the guide rail and inserted into the groove.

[0014] The groove may consist of a plurality of grooves symmetrically disposed on both sides of the heat detection member, and the stopper may consist of a plurality of stoppers symmetrically disposed on both sides of the guide rail.

[0015] The stopper may have a smaller width than the groove.

[0016] The groove may extend in a longitudinal direction of the heat detection member.

[0017] The groove may have a smaller length than the heat detecting member.

[0018] One end of the groove may penetrate one end of the heat detection member.

[0019] The energy storage system may further include: a second separation prevention member provided outside the guide rail to face the heat detection member.

[0020] The first separation prevention member may be spaced apart from the second separation prevention member in a longitudinal direction of the guide rail.

[0021] The second anti-separation member may be composed of a plurality of second anti-separation members symmetrically disposed on both sides of the guide rail.

[0022] The fire extinguishing duct may be inserted into an inner space of the guide rail in a first direction through an open surface formed at an upper surface of the guide rail, and the second separation prevention member may face the inner space of the guide rail in the first direction.

[0023] The second anti-separation member may extend from the sub-frame in a direction crossing the first direction.

[0024] In the energy storage system according to the present disclosure, the first anti-separation member restricts the rotation of the fire extinguishing pipe about its central axis within the guide rail, thereby preventing the change of the spraying direction of the spray hole while ensuring the reliability of the fire extinguishing performance.

[0025] In the energy storage system according to the present disclosure, the first anti-separation member prevents the fire extinguishing duct from being separated from the guide rail, thereby preventing damage to the fire extinguishing duct due to interference with the battery module mounted on the sub-frame.

[0026] In the energy storage system according to the present disclosure, when the first anti-separation member loses its inherent function due to damage of the stopper, the second anti-separation member can prevent the fire extinguishing pipe from being separated from the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The following drawings attached to this specification illustrate embodiments of the present disclosure, and together with the detailed description of the present disclosure, further describe aspects and features of the present disclosure. Therefore, the present disclosure should not be interpreted as being limited to the drawings.

[0028] Figure 1 is a schematic perspective view of an energy storage system according to a first embodiment of the present disclosure.

[0029] Figure 2 is a schematic perspective view of a subframe and a guide rail according to a first embodiment of the present disclosure.

[0030] Figure 3 is another schematic perspective view of the sub-frame and the guide rail according to the first embodiment of the present disclosure.

[0031] Figure 4 is a schematic perspective view of a fire extinguishing duct and a heat detecting member according to a first embodiment of the present disclosure.

[0032] Figure 5 is another schematic perspective view of a fire extinguishing duct and a heat detecting member according to the first embodiment of the present disclosure.

[0033] Figure 6 is a schematic perspective view of a first separation prevention member according to a first embodiment of the present disclosure.

[0034] Figure 7 is a schematic exploded perspective view of a first separation prevention member according to a first embodiment of the present disclosure.

[0035] Figure 8 is a schematic plan view of a first separation prevention member according to a first embodiment of the present disclosure.

[0036] Fig. 9 is a schematic front view of a first separation prevention member according to a first embodiment of the present disclosure.

[0037] Figures 10 to 12 is a schematic diagram illustrating a process of assembling a fire extinguishing duct to a guide rail in the energy storage system according to the first embodiment of the present disclosure.

[0038] Fig.13 is a graph showing where external force is applied to Fig.12 View of the status of the fire extinguishing pipeline.

[0039] Fig.14 is a schematic exploded perspective view of a first separation prevention member according to a second embodiment of the present disclosure.

[0040] Fig.15 is a schematic front view of a first separation prevention member according to a second embodiment of the present disclosure.

[0041] Figures 16 to 18 is a schematic diagram illustrating a process of assembling a fire extinguishing duct to a guide rail in an energy storage system according to a second embodiment of the present disclosure.

[0042] Fig.19 is a graph showing where external force is applied to Fig.18 View of the status of the fire extinguishing pipeline. DETAILED DESCRIPTION

[0043] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The terms or words used in the present specification and claims should not be interpreted as limited to the usual or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical concept of the present disclosure, based on the principle that the inventor can be his / her own lexicon compiler to appropriately define the concept of the term so as to best explain his / her invention.

[0044] The embodiments described in this specification and the configurations shown in the drawings are only some of the embodiments of the present disclosure and do not represent all technical ideas, aspects and features of the present disclosure. Therefore, it should be understood that when submitting this application, there may be various equivalents and modifications that can replace or modify the embodiments described herein.

[0045] It will be understood that when an element or layer is referred to as being "on," "connected to," or "coupled to" another element or layer, it may be directly on, directly connected to, or directly coupled to another element or layer, or there may 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 may be no intervening elements or layers. For example, when a first element is described as being "coupled to" or "connected to" a second element, the first element may be directly coupled or connected to the second element, or the first element may be indirectly coupled or connected to the second element via one or more intervening elements.

[0046] In the accompanying drawings, for the clarity of the illustration, the sizes of various elements, layers, etc. may be exaggerated. The same reference numerals refer to the same elements. As used herein, the term "and / or" includes any and all combinations of one or more related listed items. In addition, when describing the embodiments of the present disclosure, the use of "may" relates to "one or more embodiments of the present disclosure". Expressions such as "at least one of ..." and "any of ...", when following a column of elements, modify the entire column of elements, rather than modifying the individual elements in the column. 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 A, B, and C" are used to specify a column of elements A, B, and C, the phrase may refer to any and all suitable combinations or subsets of A, B, and C, such as A, B, C, A and B, A and C, B and C, or A and B and C. As used herein, the terms "use", "being used", and "being used" may be considered to be synonymous with the terms "utilize", "being utilized", and "being utilized", respectively. As used herein, the terms "substantially," "about," and similar terms are used as terms of approximation, not terms of degree, and are intended to account for the inherent variation in measured or calculated values ​​as would be recognized by one of ordinary skill in the art.

[0047] It will be understood that although the terms first, second, third, etc. can be used here to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are used to distinguish an element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the example embodiments, the first element, first component, first region, first layer or first part discussed below can be referred to as the second element, second component, second region, second layer or second part.

[0048] For ease of description, spatial relational terms such as "below", "beneath", "below", "above", etc. may be used herein to describe the relationship of one element or feature to another element or features as shown in the accompanying drawings. It will be understood that, in addition to the orientations depicted in the accompanying drawings, the spatial relational terms are intended to cover different orientations of the device in use or operation. For example, if the device in the accompanying drawings is turned over, the elements described as "below" or "below" other elements or features will be oriented "above" or "above" the other elements or features. Therefore, the term "below" can cover both above and below orientations. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatial relational descriptors used here should be interpreted accordingly.

[0049] The terms used herein are for the purpose of describing the embodiments of the present disclosure, and are not intended to limit the present disclosure. As used herein, the singular forms "one" and "an" are intended to also include plural forms, unless the context clearly indicates otherwise. It will also be understood that the terms "include", "includes ...", "includes" and / or "includes ...", when used in this specification, specify the existence of stated features, integers, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, integers, steps, operations, elements, parts and / or their combinations.

[0050] In addition, any numerical range disclosed and / or described herein is intended to include all sub-ranges of the same numerical precision contained in the range. For example, the range of "1.0 to 10.0" is intended to include all sub-ranges between the minimum value 1.0 and the maximum value 10.0 (and including the minimum value 1.0 and the maximum value 10.0), that is, having a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, such as, for example, 2.4 to 7.6. Any maximum numerical limit described here is intended to include all lower numerical limits contained therein, and any minimum numerical limit described in this specification is intended to include all higher numerical limits contained therein. Therefore, the applicant reserves the right to modify this specification (including claims) to explicitly list any sub-ranges contained in the range explicitly described here.

[0051] 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 what is considered in the art to have low deviations, such as 5% or less. In addition, when a parameter is referred to as being uniform in a given area, this may mean that it is uniform with respect to an average value.

[0052] Throughout the specification, unless otherwise specified, each element may be in the singular or in the plural.

[0053] When any element is referred to as being disposed (or positioned or located) "on (or below)" or "on (or below)" a component, it may indicate that the arbitrary element is positioned to be in contact with the upper (or lower) surface of the component, or it may indicate that another component may be interposed between the component and any element disposed (or positioned or located) on (or below) the component.

[0054] Furthermore, it will be understood that when an element is referred to as being "coupled," "linked," or "connected" to another element, the elements may be directly "coupled," "linked," or "connected" to each other, or there may be an intervening element therebetween through which the element may be "coupled," "linked," or "connected" to the other element. Furthermore, when a component is referred to as being "electrically coupled" to another component, the component may be directly connected to the other component, or there may be an intervening component therebetween such that the component and the other component are indirectly connected to each other.

[0055] Throughout the specification, unless otherwise stated, when "A and / or B" is stated, it means A, B, or A and B. That is, "and / or" includes any or all combinations of the listed multiple items. Unless otherwise specified, when "C to D" is stated, it means C or greater and D or less.

[0056] Figure 1 is a schematic perspective view of an energy storage system according to a first embodiment of the present disclosure.

[0057] Reference Figure 1 , the energy storage system according to this embodiment includes a rack frame 100 , a sub-frame 200 , a guide rail 300 , a fire extinguishing pipe 400 , a heat detection member 500 , and a first anti-separation member 600 .

[0058] The rack frame 100 is provided with a space capable of accommodating the battery module B therein. According to this embodiment, the rack frame 100 may have a hollow box or frame shape. The rack frame 100 may be provided in a building, a container, a housing, etc. The rack frame 100 may be formed of a material having high hardness such as steel, etc. to prevent damage due to a load applied from the battery module B. Although Figure 1 The stent frame 100 is shown to have a parallelepiped shape, but it should be understood that the stent frame 100 may be modified into various shapes, including a polyhedral shape, a cylindrical shape, and the like.

[0059] The battery module B stores electricity through charge / discharge operations, or supplies the stored electricity to an external electronic device (not shown). The battery module B may include a substantially box-shaped module housing, a plurality of battery cells disposed within the module housing, and a cooling plate through which a coolant flows to cool the battery cells. The battery cells may be pouch-type secondary cells, prismatic secondary cells, or cylindrical secondary cells.

[0060] The battery module B may be provided in plurality. A plurality of battery modules B may be stacked in the vertical direction within the support frame 100. Figure 1, the plurality of battery modules B may be spaced apart from each other in the Z-axis direction. In addition, the plurality of battery modules B may be arranged in a plurality of rows in the horizontal direction. That is, the plurality of battery modules B may be arranged in a plurality of rows in the horizontal direction. Figure 1 Arranged into multiple rows in the Y-axis direction.

[0061] The sub-frame 200 is fixed to the rack frame 100 and disposed to face the battery module B. The sub-frame 200 may be used to support the battery module B and a fire extinguishing duct 400 (described later) within the rack frame 100 .

[0062] Figure 2 is a schematic perspective view of a subframe and a guide rail according to a first embodiment of the present disclosure, Figure 3 is another schematic perspective view of the sub-frame and the guide rail according to the first embodiment of the present disclosure.

[0063] Reference Figures 1 to 3 , the subframe 200 according to this embodiment may have a substantially flat plate shape. The subframe 200 may be provided in plurality. Each of the plurality of subframes 200 may be disposed between a pair of battery modules B spaced apart in the vertical direction. With reference to any one battery module B, the plurality of subframes 200 may be symmetrically disposed on both sides of the battery module B in the width direction of the battery module B. Here, the width direction of the battery module B may represent the width direction of the battery module B with reference to FIG. Figure 1 The direction parallel to the Y-axis direction.

[0064] The lower surface of the sub-frame 200 disposed between a pair of battery modules B adjacent to each other in the vertical direction may be spaced apart from the upper surface of the battery module B disposed on the lower side. In addition, the upper surface of the sub-frame 200 disposed between the pair of battery modules B adjacent to each other in the vertical direction may contact the lower surface of the battery module B disposed on the upper side. Therefore, each battery module B may be supported within the rack frame 100 with its lower surface seated on the sub-frame 200, and a space on its upper surface to which the fire extinguishing liquid ejected from the fire extinguishing pipe 400 described below can be delivered may be ensured.

[0065] The guide rail 300 provides a space on the subframe 200 in which the fire extinguishing duct 400 can be accommodated. The guide rail 300 according to this embodiment may be concavely formed on the upper surface of the subframe 200. The guide rail 300 may be provided to have a longitudinal direction parallel to the longitudinal direction of the battery module B. Here, the longitudinal direction of the battery module B may refer to the longitudinal direction of the battery module B. Figure 1 The direction parallel to the X-axis direction.

[0066] The guide rail 300 may be formed at its upper surface with an open surface 301, through which the inner space of the guide rail 300 is connected to its outer space. Therefore, the guide rail 300 may have a cross section surrounded by a pair of side surfaces, a bottom surface, and the open surface 301. Figure 2 The guide rail 300 is shown to have a substantially rectangular cross-section, but it should be understood that the guide rail 300 is not limited thereto and may be modified into various shapes, including a trapezoidal shape, a triangular shape, a semicircular shape, and the like.

[0067] The lower surface of the guide rail 300 may be spaced apart from the upper surface of the battery module B by a predetermined distance to face the upper surface of the battery module B. The guide rail 300 may be formed with a plurality of through holes 302 in its lower surface. The through holes 302 may be formed vertically through the lower surface of the guide rail 300. Each through hole 302 may be disposed at a position facing a vent hole (not shown) of each battery cell in the battery module B.

[0068] The fire extinguishing pipe 400 is disposed in the guide rail 300 and conveys the fire extinguishing liquid.

[0069] Figure 4 is a schematic perspective view of a fire extinguishing pipe and a heat detection member according to a first embodiment of the present disclosure, Figure 5 is another schematic perspective view of a fire extinguishing duct and a heat detecting member according to the first embodiment of the present disclosure.

[0070] Reference Figures 1 to 5 , the fire extinguishing pipe 400 according to this embodiment may have a hollow pipe shape. The fire extinguishing pipe 400 may receive the fire extinguishing liquid supplied from the outside of the support frame 100 via a separate hose, pipe, etc. Figures 2 to 5 The fire extinguishing duct 400 is shown as having a circular cross-sectional shape, but it should be understood that the fire extinguishing duct 400 may have a variety of cross-sectional shapes.

[0071] The fire extinguishing duct 400 may be provided to have a longitudinal direction parallel to the longitudinal direction of the guide rail 300. The fire extinguishing duct 400 may have a smaller cross-sectional area than the guide rail 300. The fire extinguishing duct 400 may be inserted into the inner space of the guide rail 300 through the open surface 301 in a first direction from the outside of the subframe 200. Here, the first direction may refer to a direction parallel to the Z-axis direction among directions from the open surface 301 toward the inside of the guide rail 300. The fire extinguishing duct 400 may be slidably moved in the longitudinal direction of the guide rail 300 in a state inserted into the guide rail 300.

[0072] The fire extinguishing pipe 400 may be provided in plural. The plural fire extinguishing pipes 400 may be respectively disposed in the guide rail 300.

[0073] The fire extinguishing pipe 400 may be formed with a spray hole 401 through which the fire extinguishing liquid is sprayed from the fire extinguishing pipe 400 to the outside of the fire extinguishing pipe 400. The spray hole 401 may be provided in plurality. The plurality of spray holes 401 may be spaced apart from each other in the longitudinal direction of the fire extinguishing pipe 400. When the fire extinguishing pipe 400 is inserted into the guide rail 300, the spray holes 401 may be arranged to face the through holes 302, respectively.

[0074] The heat detection member 500 is provided to surround the fire extinguishing pipe 400 and opens or closes the spray hole 410 in accordance with a temperature change.

[0075] According to this embodiment, the heat detection member 500 may be formed to surround the entire peripheral surface of the fire extinguishing pipe 400. The cross-sectional shape of the heat detection member 500 is not limited to Figure 4 and Figure 5 The heat detection member 500 is a shape shown in FIG. 4 and may be modified to various cross-sectional shapes as long as the heat detection member 500 can surround the peripheral surface of the fire extinguishing pipe 400. The heat detection member 500 may have a smaller cross-sectional area than the guide rail 300. Therefore, the heat detection member 500 may guide the fire extinguishing pipe 400 to be smoothly inserted into the guide rail 300.

[0076] The heat detection member 500 may be provided in plurality. The plurality of heat detection members 500 may be spaced apart from each other in the longitudinal direction of the fire extinguishing pipe 400. Each heat detection member 500 may be arranged to face a different injection hole 401. Therefore, the heat detection member 500 may limit the injection of the fire extinguishing liquid from the injection hole 401 within a normal temperature range.

[0077] When heated to a preset temperature or higher, the heat detection member 500 may melt and open the injection hole 401. Therefore, in the event of a fire, the heat detection member 500 may open the injection hole 401 to cause the fire extinguishing liquid transported along the fire extinguishing pipe 400 to be sprayed onto the upper surface of the battery module B through the injection hole 401 and the through hole 302. For example, the heat detection member 500 may melt in the range of 80 degrees Celsius to 250 degrees Celsius. Here, 80 degrees Celsius may be the temperature at which the heat detection member 500 begins to melt, and 250 degrees Celsius may be the temperature at which the heat detection member 500 is completely melted. The heat detection member 500 may be formed of a resin material such as ABS, PP, PC, PE, PFA, etc.

[0078] When the fire extinguishing pipe 400 is inserted into the guide rail 300, a flat placement surface 501 may be formed on one surface or an upper surface of the heat detection member 500 facing the open surface 301. The placement surface 501 may be arranged parallel to the open surface 301 to face the open surface 301. The placement surface 501 may be provided as a pair of placement surfaces. The pair of placement surfaces 501 may be respectively arranged on both sides of the heat detection member 500 in the width direction thereof.

[0079] The film 502 may be formed on the other side or lower surface of the heat detection member 500 facing the injection hole 401. The film 502 may have a thickness smaller than the remaining area of ​​the heat detection member 500. For example, assuming that the area of ​​the heat detection member 500 around the film 502 has a thickness of 1 mm, the film 502 may have a thickness of 0.3 mm to 0.6 mm or 0.2 mm to 0.9 mm. Therefore, when heat is applied to the heat detection member 500, the film 502 may melt faster than the remaining area of ​​the heat detection member 500 to allow the injection hole 401 to open quickly.

[0080] The first anti-detachment member 600 is disposed between the guide rail 300 and the heat detection member 500 and prevents the fire extinguishing pipe 400 from detaching from the guide rail 300. In addition, the first anti-detachment member 600 can limit the fire extinguishing pipe 400 from rotating around its central axis within the guide rail 300. Therefore, the first anti-detachment member 600 can prevent the fire extinguishing pipe 400 from deviating from the correct position and changing the injection direction of the injection hole 401, and can prevent the fire extinguishing pipe 400 from being damaged due to interference with the battery module B.

[0081] Figure 6 is a schematic perspective view of a first anti-separation member according to a first embodiment of the present disclosure, Figure 7 is a schematic exploded perspective view of a first anti-separation member according to a first embodiment of the present disclosure, Figure 8 is a schematic plan view of a first anti-separation member according to a first embodiment of the present disclosure, Fig. 9 is a schematic front view of a first separation prevention member according to a first embodiment of the present disclosure.

[0082] Reference Figures 6 to 9 , the first anti-separation member 600 according to this embodiment may include a slit 610 and a stopper 620 .

[0083] The slit 610 is formed through the guide rail 300. The slit 610 may be provided in plural. The slits 610 may be symmetrically disposed on both sides of the guide rail 300 in the width direction of the guide rail 300. The slits 610 may be arranged in plural rows in the longitudinal direction of the guide rail 300.

[0084] According to this embodiment, the slit 610 may include a first slit 611 and a second slit 612 .

[0085] The first slit 611 may form an appearance of one side of the slit 610 and may extend in the first direction. According to this embodiment, the first slit 611 may be formed in the width direction of the guide rail 300 (that is, in the direction relative to the reference slit 610). Figure 7The first slit 611 may be provided with a direction parallel to the first direction (ie, the Y-axis direction of the reference Figure 7 The longitudinal direction is the Z-axis direction.

[0086] The first slit 611 may include a first end 611 b connected to a second slit 612 described below and a second end 611 a located at an opposite side of the first end 611 b .

[0087] The first end 611b and the second end 611a may be spaced apart from each other in the longitudinal direction of the first slit 611. The first end 611b may be disposed on a side surface of the guide rail 300 and may penetrate the side surface of the guide rail 300 in the Y-axis direction. The second end 611a may be located on the sub-frame 200 and may penetrate the upper surface of the sub-frame 200 in the Z-axis direction. That is, the first slit 611 may extend so that an area between the first end 611b and the second end 611a intersects a boundary area between the sub-frame 200 and the guide rail 300. Therefore, the stopper 620 may enter the first slit 611 in the first direction through the second end 611a.

[0088] The second slit 612 may be connected to the first slit 611 and extend in a direction intersecting the first direction. According to this embodiment, the second slit 612 may penetrate the side surface of the guide rail 300 in the width direction of the guide rail 300 (that is, in a direction parallel to the Y-axis direction). The second slit 612 may be provided to have a longitudinal direction intersecting the first direction (that is, the longitudinal direction of the first slit 611). For example, the second slit 612 may be provided so that the longitudinal direction of the second slit 612 is parallel to the longitudinal direction of the guide rail 300, such as Figure 7 The second slit 612 may be connected to the first end 611b of the first slit 611 at one end thereof.

[0089] The second slit 612 may have a smaller width than the first slit 611. Therefore, the second slit 612 may further reduce the rotation range of the fire extinguishing duct 400 around the central axis thereof.

[0090] The stopper 620 protrudes from the heat sensing member 500 toward the slit 610 and is inserted into the slit 610. According to this embodiment, the stopper 620 may have a columnar shape protruding from the outer surface of the heat sensing member 500. Figure 7 A stopper having a circular cross-section is shown, but it should be understood that the cross-sectional shape of the stopper 620 may be modified into various shapes.

[0091] The stopper 620 may protrude from the heat detection member 500 in a direction intersecting the first direction. For example, the stopper 620 may be provided to have a longitudinal direction parallel to the width direction (that is, the Y-axis direction) of the heat detection member 500. The width of the stopper 620 may be smaller than the width of the slit 610, more specifically, smaller than the width of the first slit 611 and the second slit 612. Therefore, when the fire extinguishing pipe 400 is inserted into the guide rail 300, the stopper 620 may be inserted into the slit 610.

[0092] The stopper 620 may be provided in plurality. The plurality of stoppers 620 may be symmetrically disposed on both sides of the heat detection member 500 in the width direction of the heat detection member 500. Figure 7 As shown, the stopper 620 may be formed as a pair of stoppers that may protrude in different directions from both sides of the heat detection member 500 in its width direction. In this case, the stopper 620 may be inserted into a pair of slits 610 provided on both sides of the guide rail 300, respectively.

[0093] The energy storage system according to this embodiment may further include a second anti-separation member 700 .

[0094] The second anti-detachment member 700 is disposed outside the guide rail 300 to face the heat detection member 500. When the function of the first anti-detachment member 600 is lost due to damage of the stopper 620, etc., the second anti-detachment member 700 can be used to secondarily prevent the fire extinguishing pipe 400 from detaching from the guide rail 300.

[0095] According to this embodiment, the second anti-separation member 700 may be connected to the sub-frame 200 at one end thereof. The other end of the second anti-separation member 700 may extend from the sub-frame 200 in a direction intersecting the first direction. For example, the second anti-separation member 700 may extend from the sub-frame 200 in a direction parallel to the width direction of the guide rail 300.

[0096] The second anti-detachment member 700 may be disposed outside the guide rail 300 to face the inner space of the guide rail 300 in the first direction. That is, the second anti-detachment member 700 may be disposed to face the open surface 301 up and down. The second anti-detachment member 700 may be separated from the open surface 301 by a predetermined distance. When the fire extinguishing pipe 400 is inserted into the guide rail 300, the second anti-detachment member 700 may be disposed to face the placement surface 501 of the heat detection member 500. When the fire extinguishing pipe 400 is detached from the guide rail 300 in the direction opposite to the first direction by an external force, the second anti-detachment member 700 may contact the placement surface 501 to prevent the fire extinguishing pipe 400 from detaching.

[0097] The second anti-detachment member 700 may be provided in plurality. The plurality of second anti-detachment members 700 may be symmetrically disposed on both sides of the guide rail 300. In addition, the plurality of second anti-detachment members 700 may be arranged in a plurality of rows in the longitudinal direction of the guide rail 300. The second anti-detachment member 700 may be spaced apart from the first anti-detachment member 600 in the longitudinal direction of the guide rail 300. When the stopper 620 is inserted into the first slit 611 in the first direction, the second anti-detachment member 700 may be disposed so as not to contact the fire extinguishing pipe 400 and the heat detection member 500.

[0098] Figures 10 to 12 is a schematic diagram showing a process of assembling a fire extinguishing pipe to a guide rail in an energy storage system according to a first embodiment of the present disclosure, Fig.13 It shows that when external force is applied to Fig.12 A view of the state of the fire extinguishing pipe in the fire extinguishing pipeline.

[0099] Reference Figures 10 to 12 , the fire extinguishing duct 400 moves in the first direction while being disposed to face the open surface 301 of the guide rail 300. In this case, the stopper 620 and the second end 611a of the slit 610 may be maintained to face each other in the first direction.

[0100] When the fire extinguishing pipe 400 moves in the first direction by a preset distance or more, the stopper 620 enters the first slit 611 through the second end 611 a .

[0101] Thereafter, the stopper 620 moves toward the first end 611 b in the longitudinal direction of the first slit 611 , and is located at the first end 611 b when the fire extinguishing duct 400 is fully inserted into the guide rail 300 .

[0102] Thereafter, the fire extinguishing duct 400 slidably moves in the longitudinal direction of the guide rail 300 , and the stopper 620 enters the second slit 612 through the first end 611 b .

[0103] When the stopper 620 contacts one end of the second slit 612 , the movement of the fire extinguishing duct 400 stops.

[0104] Reference Fig.13 , when a rotational force or a torsional load is applied to the fire extinguishing duct 400 with the stopper 620 inserted into the second slit 612 , the stopper 620 contacts the inner surface of the second slit 612 .

[0105] The reaction force between the stopper 620 and the inner surface of the second slit 612 counteracts the rotational force applied to the fire extinguishing duct 400, and the fire extinguishing duct 400 can maintain its initial angle without rotating about its central axis.

[0106] Furthermore, when external force is applied to the fire extinguishing duct 400 in a direction opposite to the first direction with the stopper 620 inserted into the second slit 612 , the stopper 620 contacts the inner surface of the second slit 612 .

[0107] The reaction force between the stopper 620 and the inner surface of the second slit 612 counteracts the external force applied to the fire extinguishing duct 400, and the fire extinguishing duct 400 can maintain its original position without moving in the direction opposite to the first direction.

[0108] When the fire extinguishing duct 400 moves in the direction opposite to the first direction due to damage of the stopper 620 , the second anti-detachment member 700 may contact the seating surface 501 of the heat detecting member 500 to secondarily prevent the fire extinguishing duct 400 from detaching from the guide rail 300 .

[0109] Hereinafter, an energy storage system according to a second embodiment of the present disclosure will be described.

[0110] The energy storage system according to the second embodiment of the present disclosure may include a rack frame 100 , a sub-frame 200 , a guide rail 300 , a fire extinguishing pipe 400 , a heat detecting member 500 , a first anti-detachment member 600 , and a second anti-detachment member 700 .

[0111] The energy storage system according to the second embodiment may be different from the energy storage system according to the first embodiment only in the detailed configuration of the first separation prevention member 600 .

[0112] Therefore, the following description will focus on the detailed configuration of the first anti-separation member 600 in the energy storage system according to the first embodiment of the present disclosure, which is not described above.

[0113] For the remaining configuration of the energy storage system according to the second embodiment of the present disclosure, reference is made to the description of the energy storage system according to the first embodiment of the present disclosure.

[0114] Fig.14 is a schematic exploded perspective view of a first anti-separation member according to a second embodiment of the present disclosure, Fig.15 is a schematic front view of a first separation prevention member according to a second embodiment of the present disclosure.

[0115] Reference Fig.14 and Fig.15 , the first anti-separation member 600 according to this embodiment may include a groove 630 and a stopper 640 .

[0116] The groove 630 may be concavely formed at the outer surface of the heat detection member 500. More specifically, the groove 630 may be formed in a width direction of the heat detection member 500 (that is, in a direction relative to the reference Figure 1The heat detection member 500 is concavely recessed (in a direction parallel to the Y-axis direction) from a side surface of the heat detection member 500 , which side surface faces the side surface of the guide rail 300 .

[0117] The groove 630 may be formed in the longitudinal direction of the heat detection member 500 (that is, in the direction relative to the reference Figure 1 The groove 630 may extend in a direction parallel to the X-axis direction of the heat detection member 500. The groove 630 may have a length smaller than that of the heat detection member 500. In this case, one end of the groove 630 may penetrate one end of the heat detection member 500 in the longitudinal direction of the heat detection member 500. Therefore, the one end of the groove 630 may be open in the longitudinal direction of the heat detection member 500, and the other end of the groove 630 may be closed in the longitudinal direction of the heat detection member 500.

[0118] The groove 630 may be provided in plurality. The plurality of grooves 630 may be symmetrically arranged on both sides of the heat detection member 500 in the width direction of the heat detection member 500. Fig.14 As shown, the groove 630 may be formed as a pair of grooves and may be recessed from both sides of the heat sensing member 500 to face each other in a width direction thereof.

[0119] The stopper 640 may protrude from the side surface of the guide rail 300 toward the inner space of the guide rail 300. More specifically, the stopper 640 may be provided in the width direction of the guide rail 300 (that is, in the direction of the reference Figure 1 The stopper 640 protrudes from the side surface of the guide rail 300 in a direction parallel to the Y-axis direction of the guide rail 300. The stopper 640 may have a smaller width than the groove 630. Therefore, when the fire extinguishing pipe 400 is inserted into the guide rail 300, the stopper 640 may be inserted into the groove 630.

[0120] The stopper 640 may be provided in plural. The plurality of stoppers 640 may be symmetrically disposed on both sides of the guide rail 300 in the width direction of the guide rail 300. The plurality of stoppers 640 may be arranged in a plurality of rows in the longitudinal direction of the guide rail 300.

[0121] Figures 16 to 18 is a schematic diagram showing a process of assembling a fire extinguishing pipe to a guide rail in an energy storage system according to a second embodiment of the present disclosure, Fig.19 It shows that when external force is applied to Fig.18 A view of the state of the fire extinguishing pipe in the fire extinguishing pipeline.

[0122] Reference Figures 10 to 12 , the fire extinguishing duct 400 moves in the first direction while being arranged to face the open surface 301 of the guide rail 300. In this case, one end of the groove 630 and the stopper 640 may keep alternating with each other in a cross direction relative to the first direction.

[0123] When the fire extinguishing duct 400 is completely inserted into the guide rail 300 , the one end of the groove 630 and the stopper 640 are disposed to face each other in the longitudinal direction of the guide rail 300 .

[0124] Thereafter, the fire extinguishing duct 400 is slidably moved in the longitudinal direction of the guide rail 300 , and the stopper 640 is inserted into the groove 630 through the one end of the groove 630 .

[0125] When the fire extinguishing duct 400 moves a preset distance or more in the longitudinal direction of the guide rail 300 , the stopper 640 contacts the other end of the groove 630 , and the sliding movement of the fire extinguishing duct 400 stops.

[0126] Reference Fig.19 , when a rotational force or a torsional load is applied to the fire extinguishing duct 400 with the stopper 640 inserted into the groove 630 , the stopper 640 contacts the inner surface of the groove 630 .

[0127] The reaction force between the stopper 640 and the inner surface of the groove 630 counteracts the rotational force applied to the fire extinguishing duct 400, and the fire extinguishing duct 400 can maintain its original angle without rotating about its central axis.

[0128] Furthermore, when external force is applied to the fire extinguishing duct 400 in a direction opposite to the first direction with the stopper 640 inserted into the groove 630 , the stopper 640 contacts the inner surface of the groove 630 .

[0129] The reaction force between the stopper 640 and the inner surface of the groove 630 counteracts the external force applied to the fire extinguishing duct 400, and the fire extinguishing duct 400 can maintain its original position without moving in the direction opposite to the first direction.

[0130] When the fire extinguishing duct 400 moves in the direction opposite to the first direction due to damage of the stopper 640 , the second anti-detachment member 700 may contact the seating surface 501 of the heat detecting member 500 to secondarily prevent the fire extinguishing duct 400 from detaching from the guide rail 300 .

[0131] Although the present disclosure has been described with reference to some exemplary embodiments, it will be understood by those skilled in the art that these embodiments are given by way of illustration only and that various modifications, changes, and alterations may be made without departing from the spirit and scope of the present invention.

Claims

1. An energy storage system, comprising: A bracket frame, accommodating the battery module; A subframe, fixed to the support frame and facing the battery module; a guide rail concavely formed at one surface of the subframe; a fire extinguishing pipe, arranged in the guide rail and having a spray hole, through which the fire extinguishing liquid is sprayed; A heat detection member, arranged to surround the fire extinguishing pipe and to open or close the spray hole in conjunction with temperature changes; as well as The first anti-separation member is disposed between the guide rail and the heat detection member and prevents the fire extinguishing pipe from being separated from the guide rail.

2. The energy storage system according to claim 1, wherein the first anti-separation member comprises: a slit formed through the guide rail; and A stopper protrudes from the heat detection member toward the slit and is inserted into the slit. 3 . The energy storage system of claim 2 , wherein the stopper has a smaller width than the slit. 4 . The energy storage system according to claim 2 , wherein the slit is composed of a plurality of slits symmetrically disposed on both sides of the guide rail, and the stopper is composed of a plurality of stoppers symmetrically disposed on both sides of the heat detection member.

5. The energy storage system of claim 2, wherein: The fire extinguishing duct is inserted into the guide rail in a first direction through an open surface formed at an upper surface of the guide rail, and The slits include: a first slit extending in the first direction; and a second slit connected to the first slit and extending in a direction crossing the first direction.

6. The energy storage system of claim 5, wherein the first slit comprises: connected to a first end of the second slit; and a second end located on an opposite side of the first end and penetrating the subframe. 7 . The energy storage system of claim 5 , wherein the second slit extends in a longitudinal direction of the guide rail.

8. The energy storage system of claim 5, wherein the second slit has a smaller width than the first slit.

9. The energy storage system of claim 1, wherein the first anti-separation member comprises: a groove concavely formed at an outer surface of the heat detection member; and A stopper protrudes from the guide rail and is inserted into the groove.

10. The energy storage system according to claim 9, wherein the groove is composed of a plurality of grooves symmetrically arranged on both sides of the heat detection member, and the stopper is composed of a plurality of stoppers symmetrically arranged on both sides of the guide rail.

11. The energy storage system of claim 9, wherein the stopper has a smaller width than the groove. 12 . The energy storage system of claim 9 , wherein the groove extends in a longitudinal direction of the heat detection member.

13. The energy storage system of claim 9, wherein the groove has a length smaller than that of the heat detection member.

14. The energy storage system of claim 13, wherein one end of the groove penetrates one end of the heat detection member.

15. The energy storage system of claim 1, further comprising: A second separation prevention member is provided outside the guide rail to face the heat detection member. 16 . The energy storage system of claim 15 , wherein the first anti-separation member is spaced apart from the second anti-separation member in a longitudinal direction of the guide rail. 17 . The energy storage system according to claim 15 , wherein the second anti-separation member is composed of a plurality of second anti-separation members symmetrically disposed on both sides of the guide rail.

18. The energy storage system according to claim 15, wherein the fire extinguishing pipe is inserted into the inner space of the guide rail in a first direction through an open surface formed at an upper surface of the guide rail, and the second anti-separation member faces the inner space of the guide rail in the first direction.

19. The energy storage system of claim 18, wherein the second anti-separation member extends from the subframe in a direction intersecting the first direction.

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