Fire detector and energy storage system comprising a fire detector

Abstract

A fire detector and an energy storage system including the same are provided. A fire detector includes a detection device, a cover member surrounding the detection device, and a wire positioned such that one side thereof contacts at least one region of the cover member, wherein the cover member includes a mesh, and the other side of the wire is grounded.

Description

Technical Field

[0001] Some aspects of this disclosure relate to fire detectors and energy storage systems including fire detectors. Background Technology

[0002] An energy storage system can be a system in which multiple battery modules are integrated to facilitate battery storage and management, and can store electricity generated in a power plant or supply the stored electricity to homes, factories, buildings or businesses that need electricity.

[0003] In energy storage systems where multiple battery modules are integrated in this manner, there is a possibility that a fire caused by thermal runaway of the batteries could lead to a large-scale fire. To prevent or mitigate such fires, fire detection technologies or systems capable of detecting fires relatively quickly and accurately in their early stages are desirable.

[0004] The information disclosed in this background section is only used to enhance the understanding of the background, and therefore the information discussed in this background section does not necessarily constitute prior art. Summary of the Invention

[0005] Some aspects of this disclosure include fire detectors with relatively improved stability and energy storage systems.

[0006] However, the technical features of the embodiments according to this disclosure are not limited to the features described above, and other features not described herein will be more clearly understood by those skilled in the art from the following description of this disclosure.

[0007] According to some embodiments of this disclosure, a fire detector includes: a detection device; a cover member surrounding the detection device; and a wire positioned such that one end of the wire contacts at least one area of ​​the cover member, wherein the cover member includes a grid, and the other end of the wire is grounded.

[0008] According to some implementations, the mesh can have a mesh size in the range of 30 to 60 meshes.

[0009] According to some implementations, the mesh may include a plurality of holes, and the plurality of holes may have a size in the range of 0.29 mm to 0.62 mm.

[0010] According to some implementations, the mesh may include a conductive material, which may include at least one selected from copper, aluminum, nickel, stainless steel or silver.

[0011] According to some implementation methods, the conductive material can be plated with tin or zinc.

[0012] According to some implementations, the form of the mesh may include at least one selected from plain weave, twill weave, or embossed weave.

[0013] According to some embodiments, the cover member may include a first cover member and a second cover member joined together, the first cover member may have a first recessed portion formed in a surface of the first cover member, the second cover member may have a second recessed portion formed in a surface of the second cover member, and when the first cover member and the second cover member are joined together, the first recessed portion and the second recessed portion may be positioned to overlap each other.

[0014] According to some embodiments of this disclosure, an energy storage system includes: a plurality of battery modules; a battery rack on which the plurality of battery modules are mounted; at least one fire detector positioned on the upper end of the battery rack; and a control device electrically connected to the plurality of battery modules and the at least one fire detector, wherein the at least one fire detector includes a wire having one end in contact with at least one region of the at least one fire detector and another end in contact with the battery rack.

[0015] According to some embodiments, the at least one fire detector may further include a detection device and a cover member surrounding the detection device, one end of the wire may contact at least one area of ​​the cover member, and the cover member may include a grid.

[0016] According to some implementations, the mesh can have a mesh size in the range of 30 to 60 meshes.

[0017] According to some implementations, the mesh may include a plurality of holes, and the plurality of holes may each have a size in the range of 0.29 mm to 0.62 mm.

[0018] According to some embodiments, the mesh may include a conductive material, and the conductive material may include at least one selected from copper, aluminum, nickel, stainless steel or silver.

[0019] According to some implementation methods, the conductive material can be plated with tin or zinc.

[0020] According to some implementations, the form of the mesh may include at least one selected from plain weave, twill weave, or embossed weave.

[0021] According to some embodiments, the cover member may include a first cover member and a second cover member joined together, the first cover member may have a first recessed portion formed in a surface of the first cover member, the second cover member may have a second recessed portion formed in a surface of the second cover member, and when the first cover member and the second cover member are joined together, the first recessed portion and the second recessed portion may be positioned to overlap each other.

[0022] According to some embodiments, a first opening may be provided in another surface of a first cover member, the other surface of the first cover member intersecting with the surface in which a first recess of the first cover member is formed, and a second opening may be provided in another surface of a second cover member, the other surface of the second cover member intersecting with the surface in which a second recess of the second cover member is formed, and the first opening and the second opening may be positioned to overlap each other when the first cover member and the second cover member are joined together.

[0023] According to some embodiments, when the first cover member and the second cover member are joined together, one end of the wire can contact the area where the first opening and the second opening are positioned to overlap each other.

[0024] According to some embodiments, the energy storage system may further include a first bracket to which the detection device is fixed and a second bracket on one side of the first bracket, and the second bracket may contact the battery rack.

[0025] According to some implementation methods, the other end of the conductor can be grounded.

[0026] According to some embodiments, the energy storage system may further include a solenoid valve, which may be electrically connected to a control device and can be operated by an electrical signal generated by the at least one fire detector. Attached Figure Description

[0027] The accompanying drawings illustrate aspects of some embodiments of the present disclosure and, together with the following detailed description, are intended to provide a further understanding of the technical spirit of embodiments according to the present disclosure. However, the present disclosure should not be construed as limited to the details shown in the drawings, in which:

[0028] Figure 1 This is a schematic exploded perspective view showing examples of fire detectors according to some embodiments of the present disclosure;

[0029] Figure 2 It is shown Figure 1 A schematic side view of an example of a combination of fire detectors;

[0030] Figure 3A , Figure 3B and Figure 3C Showing Figure 1 A magnified view of region A;

[0031] Figure 4 This is a schematic exploded perspective view showing examples of fire detectors according to some embodiments of the present disclosure;

[0032] Figure 5 It is shown Figure 4A schematic perspective view of an example of a combination of fire detectors;

[0033] Figure 6 This is a schematic cross-sectional view illustrating an example of a fire detector being used in its energy storage system;

[0034] Figure 7 It is shown Figure 6 A schematic perspective view of an example of a battery rack in area B;

[0035] Figure 8 yes Figure 7 Side view of region C;

[0036] Figure 9 A schematic diagram illustrating an example of the operation of a fire suppression system within an energy storage system is shown.

[0037] Figures 10A to 10C It is a graph showing the detection waveform of the fire detector;

[0038] Figure 11 A graph showing the detection waveforms of fire detectors based on mesh size is displayed; and

[0039] Figure 12 It is a graph showing the response time of fire detectors based on mesh size. Detailed Implementation

[0040] In the following description, some aspects of embodiments of this disclosure will be described with reference to the accompanying drawings. Before the description, it should be understood that the terminology used in the specification and appended claims should not be construed as limited to its ordinary or dictionary meaning, but rather should be interpreted based on the meaning and concept corresponding to the technical aspects of this disclosure, on the basis of allowing the inventors to appropriately define the terminology for the sake of best description. Therefore, the embodiments disclosed in this specification and the constructions shown in the drawings are merely exemplary embodiments of this disclosure and do not represent all the technical ideas of this disclosure. Thus, it should be understood that various equivalents and modifications may exist at the time of filing this application.

[0041] Furthermore, the terms “comprising,” “including,” “including,” and / or “including” used in this specification shall be construed as indicating the presence of the described shapes, numbers, steps, operations, components, elements, and / or groups thereof, without excluding the presence or addition of other shapes, numbers, steps, operations, components, elements, and / or groups thereof.

[0042] Furthermore, for better understanding of this disclosure, the accompanying drawings are not shown to scale, and the dimensions of some components may be exaggerated. Additionally, the same reference numerals may be assigned to the same components in different embodiments.

[0043] It will be understood that although the terms first, second, etc., are used here to describe various components, these components should not be limited by these terms. These terms are only used to distinguish one component from another, and unless otherwise specifically stated, the first component may also be the second component.

[0044] Throughout this specification, unless otherwise specifically stated, each component may be singular or plural.

[0045] When it is said that any element is located on the “upper (or lower)” of an element or above (or below) an element, this can mean not only that the arbitrary element is positioned to contact the upper (or lower) surface of the element, but also that another element can be inserted between the element and the arbitrary element located above (or below) the element.

[0046] Furthermore, when it is said that the first element is “connected” or “joined” to the second element, this may mean that the elements are directly connected or joined to each other. However, it should be understood that a third element may be “inserted” between the elements, or that the elements may be “connected” or “joined” to each other via a third element. Additionally, the term “electrical connection” may mean not only “direct connection” but may also include “connection via other insert components.”

[0047] Figure 1 This is a schematic exploded perspective view showing an example of a fire detector 100 according to some embodiments of the present disclosure. Figure 2 It is shown Figure 1 A schematic side view of an example of a combination of fire detectors 100.

[0048] Reference Figure 1 and Figure 2 The fire detector 100 may include a detection device 110 and a cover member 120 arranged around the detection device 110.

[0049] The detection device 110 can be fixedly located on a fixed target surface 130 and can detect fire in the event of a fire. In this case, the fixed target surface 130 may include, for example, a ceiling or a wall.

[0050] The detection device 110 may include, for example, a thermal detector that uses a resistor such as a thermistor whose resistance value changes sensitively with temperature, a smoke detector that includes a photoelectric element that detects smoke generated by a fire, an infrared detector that includes an infrared sensor that detects infrared light emitted from a flame, and so on.

[0051] The cover member 120 may be located on the detection device 110 to cover the detection device 110, and may be arranged to surround the entire detection device 110 and be secured to the target surface 130 by the fixing member 10. The fixing member 10 may include, for example, bolts 11 and nuts 12, but is not limited thereto according to embodiments of the present disclosure. The fixing member 10 may include any components as long as the components can secure the cover member 120 to the target surface 130.

[0052] The cover member 120 may include, for example, a shape that can cover the entire detection device 110, and for specific examples, may include a polyhedral shape or a dome shape. In addition, at least one region of the cover member 120 having a polyhedral or dome shape may include a mesh.

[0053] The mesh may include, for example, a conductive material, and in a particular example, may include metal wires.

[0054] For example, multiple metal wires can be arranged to cross each other to form multiple holes in a grid, and the grid can be manufactured in various forms depending on the method of crossing the metal wires.

[0055] Figure 3A , Figure 3B and Figure 3C Showing Figure 1 A magnified view of region A.

[0056] Reference Figure 3A , Figure 3B and Figure 3C The mesh can be woven in a plain weave according to the method of crossing the wires (see...). Figure 3A ), twill weave (see) Figure 3B ) or quilted weaving (see Figure 3C It is manufactured in the form of a mesh with multiple holes. In this case, multiple intersecting wires can be spaced apart to create a mesh with multiple holes.

[0057] For example, by arranging a grid in a region of the cover member 120 surrounding the detection device 110, the cover member 120 can allow smoke generated along with the fire to pass through easily, thereby allowing the smoke to be detected by the detection device 110, and can block foreign objects such as dust to prevent or reduce the exposure of the detection device 110 to foreign objects, thereby preventing or reducing performance degradation. Furthermore, the grid can be made of conductive metal wire to block radiated noise caused by electromagnetic waves generated by surrounding electronic devices, thereby preventing or reducing malfunctions of the detection device 110.

[0058] For example, the mesh size can range from 30 to 60 meshes. In this case, the unit of measurement for the mesh can be defined as the number of holes included in one square inch (2.54 cm × 2.54 cm) of the mesh. For example, 30 mesh can mean that the number of holes included in one square inch (2.54 cm × 2.54 cm) of the mesh is 30.

[0059] The mesh included in the cover member 120 can have different hole sizes depending on the mesh size. For example, as the mesh size decreases, the hole size can increase, and as the mesh size increases, the hole size can decrease, for example.

[0060] For example, the size of a hole refers to the longest length that can be measured when the hole is open. For instance, when the hole is circular, the size of the hole can be the length of the diameter passing through the center. When the hole is quadrilateral, the size of the hole can be the length of the diagonal.

[0061] For example, the aperture size can range from 0.29 mm to 0.62 mm. When the mesh has such aperture size, it can effectively block the passage of radiated noise and effectively allow smoke to pass through.

[0062] As an example, when the mesh size is 30 meshes or larger, the hole size can be 0.62 mm or smaller, and when the mesh size is 60 meshes or smaller, the hole size can be 0.29 mm or larger.

[0063] For example, the diameter of the wire can vary depending on the mesh size of the grid, and the diameter of the wire can have different values ​​depending on the mesh size of the grid.

[0064] In some implementations, when the mesh size is less than 30 meshes, it may be difficult to block radiated noise. When the mesh size is greater than 60 meshes, the smoke generated along with the fire may have difficulty passing through the mesh, so the detection device 110 may take a long time to detect the smoke.

[0065] For example, when the aperture size is less than 0.29 mm, the smoke generated along with the fire may have relatively difficulty passing through the aperture, so there may be a problem that the detection device 110 takes a long time to detect the smoke, and when the aperture size exceeds 0.62 mm, it may be relatively difficult to block radiated noise.

[0066] According to some implementations, the conductive material may include at least one selected from copper, aluminum, nickel, stainless steel or silver.

[0067] According to some implementation methods, the surface of the conductive material may be additionally plated with tin or zinc, and by plating the surface of the conductive material with tin or zinc, corrosion of the conductive material can be prevented or reduced.

[0068] According to some embodiments, the fire detector 100 may further include a wire, one end of which is positioned to contact at least one area of ​​the cover member 120, and the other end of which may be grounded.

[0069] The cover member 120 can be grounded by contacting a wire, allowing radiated noise generated by electromagnetic waves to flow along the cover member 120, which is made of conductive material, and then to the ground along the wire in contact with the cover member 120. In this way, radiated noise can flow to the ground along the cover member 120 and the wire, enabling the cover member 120 to block radiated noise, and also blocking radiated noise radiated to the detection device 110, thus preventing or reducing malfunctions of the detection device 110 caused by radiated noise.

[0070] Figure 4 This is a schematic exploded perspective view showing an example of a fire detector 200 according to some embodiments of the present disclosure. Figure 5 It is shown Figure 4 A schematic perspective view of an example of a combination of fire detectors 200.

[0071] Reference Figure 4 and Figure 5 The fire detector 200 may include a detection device 210, a cover member 230 arranged around the detection device 210, and a wire 240, one side of which is positioned to contact at least one area of ​​the cover member 230, and the cover member 230 may include a first cover member 231 and a second cover member 232.

[0072] The detection device 210 can be fixedly mounted on the first bracket 221 and can detect fires in the event of a fire. In this case, the first bracket 221 may include, for example, an octagonal or quadrilateral box located on the detection device 210, and the octagonal or quadrilateral box may be a box for wiring the detection device 210 so that the wires connected to the detection device 210 can be accommodated in the box. The wires can be connected to the control unit of the energy storage system, which will be described below.

[0073] For example, a second bracket 222 having an elongated shape can be located on one side of the first bracket 221. The second bracket 222 can be fixed in contact with the battery rack of the energy storage system, which will be described below, thereby fixing the fire detector 200 to the battery rack of the energy storage system, spaced apart from the battery rack.

[0074] The detection device 210 may include, for example, a thermal detector that uses a resistor such as a thermistor whose resistance value changes sensitively with temperature, a smoke detector that includes a photoelectric element that detects smoke generated by a fire, an infrared detector that includes an infrared sensor that detects infrared light emitted from a flame, and so on.

[0075] The cover member 230 can be arranged to surround the entire detection device 210 that is fixed to the first bracket 221. In this case, the second bracket 222 located on one side of the first bracket 221 can protrude outward through the opening 250 of the cover member 230.

[0076] The cover member 230 may include, for example, a first cover member 231 and a second cover member 232.

[0077] The first cover member 231 may include a conductive material, may include a polyhedral shape or a dome shape, and may be arranged to cover the upper part of the detection device 210 fixed to the first support 221, and the second cover member 232 may include a conductive material, may include a polyhedral shape or a dome shape, and may be arranged to cover the lower part of the detection device 210.

[0078] According to some embodiments, the first cover member 231 may include a polyhedron. For example, a first recess 251 may be formed in one surface of the first cover member 231 and may be positioned to overlap with a second recess 252 formed in one surface of the second cover member 232, which will be described below. As a specific example, when the first cover member 231 and the second cover member 232 are joined together, the first recess 251 formed in one surface of the first cover member 231 and the second recess 252 formed in one surface of the second cover member 232 may be arranged to overlap each other, thereby forming an opening 250. The second support 222 may protrude outward from the cover member 230 through the opening 250.

[0079] Additionally, as an example, the first cover member 231 may have a first opening 261 located in another surface of the first cover member 231 that intersects with a surface in which a first recess 251 is formed. The first opening 261 may be arranged to overlap with a second opening 262 of the second cover member 232, which will be described below. As a specific example, when the first cover member 231 and the second cover member 232 are joined together, the first opening 261 of the first cover member 231 and the second opening 262 of the second cover member 232 may be arranged to overlap each other, thereby forming a joining portion 260. A joining member 21 may be located in the joining portion 260, thereby joining and securing the first cover member 231 and the second cover member 232 together.

[0080] According to some embodiments, the second cover member 232 may include a polyhedral shape corresponding to the first cover member 231. As an example, one region of the second cover member 232 may include a grid, and other regions of the second cover member 232, besides the region including the grid, may include joining regions arranged to overlap with the first cover member 231.

[0081] The second recess 252 may be formed in a surface of the second cover member 232, may be formed in the mating region of the second cover member 232, and may be arranged to overlap with the first recess 251 formed in a surface of the first cover member 231. As a specific example, when the first cover member 231 and the second cover member 232 are mated together, the second recess 252 formed in a surface of the second cover member 232 and the first recess 251 formed in a surface of the first cover member 231 may be arranged to overlap each other, thereby forming an opening 250. The second support 222 may protrude outward from the cover member 230 through the opening 250.

[0082] Additionally, as an example, the second cover member 232 may have a second opening 262 formed in another surface of the second cover member 232 that intersects with a surface in which a second recess 252 is formed. The second opening 262 may be formed in the mating region of the second cover member 232 and may be arranged to overlap with a first opening 261 formed in the other surface of the first cover member 231. As a specific example, when the first cover member 231 and the second cover member 232 are mated together, the second opening 262 of the second cover member 232 and the first opening 261 of the first cover member 231 may be arranged to overlap each other, thereby forming a mating portion 260. A mating member 21 may be arranged in the mating portion 260 to mat and secure the first cover member 231 and the second cover member 232 together.

[0083] For example, when the connecting member 21 is located in the connecting portion 260, the wire 240, which will be described below, can be located in the connecting portion 260 together with the connecting member 21, such that one side of the wire 240 can be fixed to the connecting portion 260 by means of the connecting member 21.

[0084] The mesh positioned in a region of the second cover member 232 may include, for example, a conductive material, and as a specific example, may include metal wire.

[0085] For example, multiple metal wires can be arranged to intersect each other to form multiple holes in a grid, and the grid can be manufactured in various forms depending on the method of making the wires intersect.

[0086] The mesh can be manufactured in the form of plain weave, twill weave, or crimped weave, depending on the method by which the wires are crossed. In this case, multiple crossed wires can be spaced apart to create a mesh that includes multiple holes.

[0087] For example, by arranging a grid in a region of the second cover member 232 surrounding the cover member 230 of the detection device 210, the cover member 230 can allow smoke generated along with the fire to pass through easily, thereby allowing the smoke to be detected by the detection device 210, and can block foreign objects such as dust to prevent or reduce the exposure of the detection device 210 to foreign objects, thereby preventing or reducing performance degradation. Furthermore, the grid can be made of conductive metal wire to block radiated noise caused by electromagnetic waves generated by surrounding electronic devices, thereby preventing or reducing malfunctions of the detection device 210.

[0088] For example, the mesh size can range from 30 to 60 meshes. In this case, the unit of measurement for the mesh can be defined as the number of holes included in one square inch area (2.54cm × 2.54cm) of the mesh. Specifically, 30 mesh can mean that the number of holes included in one square inch area (2.54cm × 2.54cm) of the mesh is 30.

[0089] The mesh included in the cover member 230 can have different hole sizes depending on the mesh size. For example, as the mesh size decreases, the hole size can increase, and as the mesh size increases, the hole size can decrease, for example.

[0090] For example, the size of a hole refers to the longest length that can be measured when the hole is open. For instance, when the hole is circular, the size of the hole can be the length of the diameter passing through the center. When the hole is quadrilateral, the size of the hole can be the length of the diagonal.

[0091] For example, the aperture size can range from 0.29 mm to 0.62 mm. When the mesh has such aperture size, it can effectively block the passage of radiated noise and effectively allow smoke to pass through.

[0092] As an example, when the mesh size is 30 meshes or larger, the hole size can be 0.62 mm or smaller, and when the mesh size is 60 meshes or smaller, the hole size can be 0.29 mm or larger.

[0093] For example, the diameter of the wire can vary depending on the mesh size of the grid, and the diameter of the wire can have different values ​​depending on the mesh size of the grid.

[0094] In some implementations, when the mesh size is less than 30 meshes, it may be difficult to block radiated noise. When the mesh size is greater than 60 meshes, the smoke generated along with the fire may have difficulty passing through the mesh, so the detection device 210 may take a long time to detect the smoke.

[0095] For example, when the size of the hole is less than 0.29 mm, the smoke generated along with the fire may have difficulty passing through the hole, so the detection device 210 may take a long time to detect the smoke, and when the size of the hole exceeds 0.62 mm, it may be difficult to block radiated noise.

[0096] According to some embodiments, the conductive material may include at least one selected from copper, aluminum, nickel, stainless steel or silver.

[0097] According to some implementation methods, the surface of the conductive material may be additionally plated with tin or zinc, and by plating the surface of the conductive material with tin or zinc, corrosion of the conductive material can be prevented or reduced.

[0098] The conductor 240 may be positioned such that one end of it contacts at least one region of the cover member 230. As a specific example, the conductor 240 may be positioned such that one end of it contacts the mating portion 260 of the cover member 230, and the other end of it may be grounded.

[0099] The cover member 230 can be grounded by contacting the wire 240, allowing radiated noise caused by electromagnetic waves to flow along the cover member 230, which is made of conductive material, and then to the ground along the wire 240 in contact with the cover member 230. In this way, radiated noise can flow to the ground along the cover member 230 and the wire 240, so that the cover member 230 can block radiated noise flowing to the detection device 210, and by blocking radiated noise radiated to the detection device 210, malfunctions of the detection device 210 caused by radiated noise can be prevented or reduced.

[0100] As a result, the fire detector according to the embodiments of this disclosure may include a cover member and a wire in contact with at least one area of ​​the cover member, thereby preventing or reducing fire detector malfunctions and thus relatively improving safety.

[0101] Figure 6 It is shown Figure 4 A schematic cross-sectional view of an example of a fire detector 200 applied to its energy storage system 1000.

[0102] Reference Figure 6The energy storage system 1000 may include a plurality of battery modules 1100, a battery rack 1200 on which the plurality of battery modules 1100 are mounted, a control device 1300, and at least one fire detector 200 located on the upper end of the battery rack 1200.

[0103] The battery module 1100 can accommodate multiple battery cells, which are electrically connected to each other to facilitate the storage and management of the battery cells. The battery module 1100 can be electrically connected to the control device 1300, which will be described below, and controlled by the control device 1300.

[0104] Multiple battery racks 1200 can be located inside the energy storage system 1000, and multiple battery modules 1100 can be mounted on the battery racks 1200.

[0105] The battery rack 1200 may include, for example, multiple layers, so that multiple battery modules 1100 can be mounted on each layer. The battery rack 1200 may include conductive members, so that it can be grounded to prevent short circuits due to contact with the battery modules 1100.

[0106] According to some implementations, the battery rack 1200 can be grounded via a grounding box located in the energy storage system 1000.

[0107] The control device 1300 can check the status of the battery module 1100, control charging / discharging and current flow, and can be connected to the fire detector 200 to receive detection signals generated by the fire detector 200 to activate the fire extinguishing device, thereby controlling the operation of various electronic devices included in the energy storage system 1000.

[0108] Figure 7 It is shown Figure 6 A schematic perspective view of an example of a battery rack 1200 in area B. Figure 8 yes Figure 7 Side view of region C.

[0109] Reference Figure 7 and Figure 8 By fixing the second bracket 222 to the frame of the battery rack 1200, the fire detector 200 can be located at the end of the second bracket 222 opposite to the battery rack 1200.

[0110] For example, the detection device 210 can be fixedly mounted on the first bracket 221 inside the fire detector 200 to detect a fire. In this case, the first bracket 221 may include, for example, an octagonal or quadrilateral box located on the detection device 210, and the octagonal or quadrilateral box may be a box for wiring the detection device 210 so that the wires connected to the detection device 210 can be accommodated in the box. The wires can be connected to the control unit of the energy storage system, which will be described below.

[0111] For example, a second bracket 222 having an elongated shape can be located on one side of the first bracket 221 positioned inside the fire detector 200. The second bracket 222 can be fixed in contact with the battery rack 1200, thereby fixing the fire detector 200 to the upper frame of the battery rack 1200, spaced apart from the battery rack 1200.

[0112] The detection device 210 may include, for example, a thermal detector that uses a resistor such as a thermistor whose resistance value changes sensitively with temperature, a smoke detector that includes a photoelectric element that detects smoke generated by a fire, an infrared detector that includes an infrared sensor that detects infrared light emitted from a flame, and so on.

[0113] The cover member 230 can be arranged to surround the entire detection device 210 that is fixed to the first bracket 221. In this case, the second bracket 222 located on one side of the first bracket 221 can protrude outward through the opening 250 of the cover member 230.

[0114] The cover member 230 may include, for example, a first cover member 231 and a second cover member 232.

[0115] The first cover member 231 may include a conductive material, may include a polyhedral shape or a dome shape, and may be arranged to cover the upper part of the detection device 210 fixed to the first support, and the second cover member 232 may include a conductive material, may include a polyhedral shape or a dome shape, and may be arranged to cover the lower part of the detection device 210.

[0116] As an example, one area of ​​the second cover member 232 may include a grid, and other areas besides the area including the grid may include a bonding area arranged to overlap with the first cover member 231.

[0117] For example, when the connecting member 21 is located in the connecting portion 260, the wire 240, which will be described below, can be located in the connecting portion 260 together with the connecting member 21, such that one side of the wire 240 can be fixed to the connecting portion 260 by means of the connecting member 21.

[0118] The mesh positioned in a region of the second cover member 232 may include, for example, a conductive material, and as a specific example, may include metal wire.

[0119] For example, multiple metal wires can be arranged to cross each other to form multiple holes in a grid, and the grid can be manufactured in various forms depending on the method of crossing the metal wires.

[0120] The mesh can be manufactured in the form of plain weave, twill weave, or crimped weave, depending on the method by which the wires are crossed. In this case, multiple crossed wires can be spaced apart to create a mesh that includes multiple holes.

[0121] For example, by arranging a grid in a region of the second cover member 232 surrounding the cover member 230 of the detection device 210, the cover member 230 can allow smoke generated along with the fire to pass through easily, thereby allowing the smoke to be detected by the detection device 210, and can block foreign objects such as dust to prevent or reduce the exposure of the detection device 210 to foreign objects or contaminants, thereby preventing or reducing performance degradation. Furthermore, the grid can be made of conductive metal wire to block radiated noise caused by electromagnetic waves generated by surrounding electronic devices, thereby preventing or reducing malfunctions of the detection device 210.

[0122] For example, the mesh size can range from 30 to 60 meshes. In this case, the unit of measurement for the mesh can be defined as the number of holes included in one square inch area (2.54cm × 2.54cm) of the mesh. Specifically, 30 mesh can mean that the number of holes included in one square inch area (2.54cm × 2.54cm) of the mesh is 30.

[0123] The mesh included in the cover member 230 can have different hole sizes depending on the mesh size. For example, as the mesh size decreases, the hole size can increase, and as the mesh size increases, the hole size can decrease, for example.

[0124] For example, the size of a hole refers to the longest length that can be measured when the hole is open. For instance, when the hole is circular, the size of the hole can be the length of the diameter passing through the center. When the hole is quadrilateral, the size of the hole can be the length of the diagonal.

[0125] For example, the aperture size can range from 0.29 mm to 0.62 mm. When the mesh has such aperture size, it can effectively block the passage of radiated noise and effectively allow smoke to pass through.

[0126] As an example, when the mesh size is 30 meshes or larger, the hole size can be 0.62 mm or smaller, and when the mesh size is 60 meshes or smaller, the hole size can be 0.29 mm or larger.

[0127] For example, the diameter of the wire can vary depending on the mesh size of the grid, and the diameter of the wire can have different values ​​depending on the mesh size of the grid.

[0128] In some implementations, when the mesh size is less than 30 meshes, it may be difficult to block radiated noise, and when the mesh size is greater than 60 meshes, the smoke generated along with the fire may have difficulty passing through the mesh, so the detection device 210 may take a long time to detect the smoke.

[0129] For example, when the size of the hole is less than 0.29 mm, the smoke generated along with the fire may have difficulty passing through the hole, so the detection device 210 may take a long time to detect the smoke, and when the size of the hole exceeds 0.62 mm, it may be difficult to block radiated noise.

[0130] According to some implementations, the conductive material may include at least one selected from copper, aluminum, nickel, stainless steel or silver.

[0131] According to some implementation methods, the surface of the conductive material may be additionally plated with tin or zinc, and by plating the surface of the conductive material with tin or zinc, corrosion of the conductive material can be prevented or reduced.

[0132] The wire 240 may be positioned such that one end contacts at least one region of the cover member 230 and the other end may be grounded. As a specific example, the wire 240 may be positioned such that one end contacts the mating portion 260 of the cover member 230 and the other end contacts the battery holder 1200 and may be grounded.

[0133] One end of the wire 240 can contact the cover member 230, and the other end of the wire 240 can contact the battery rack 1200 and be grounded, so that radiated noise caused by electromagnetic waves can flow along the cover member 230, which is made of conductive material, and then flow along the wire 240 in contact with the cover member 230 to the battery rack 1200. The battery rack 1200 can be grounded, so the radiated noise can eventually flow to the ground. In this way, radiated noise can flow to the ground along the cover member 230 and the wire 240, so that the cover member 230 can block the radiated noise flowing to the detection device 210, and by blocking the radiated noise radiated to the detection device, malfunctions of the detection device 210 caused by radiated noise can be prevented or reduced.

[0134] Figure 9 A schematic diagram showing an example of the operation of a fire suppression system based on an energy storage system is displayed.

[0135] Reference Figure 9The fire suppression system of the energy storage system may include, for example, a direct injection system. In a direct injection system, ① when an event occurs in a battery cell housed in the battery module 1100, smoke may be generated; ② the injection nozzle 500 may be melted and opened by the heat and flame generated in the battery cell to form an injection hole 510; ③ when the concentration of smoke generated in the battery cell increases, the fire detector 200 may detect the smoke and generate an electrical signal; ④ the control device 1300 receiving the signal from the fire detector 200 may operate the solenoid valve 600 to move the extinguishing agent located in the extinguishing agent container 700 to the injection nozzle 500; and ⑤ the extinguishing agent may be concentrated and injected through the injection hole 510 onto the battery cell housed inside the battery module 1100.

[0136] In the case of a direct injection system, the system can be operated by the electrical signal of the fire detector 200. Therefore, when the fire detector 200 continuously malfunctions and generates an electrical signal, the malfunction may cause the entire system to fail, making it difficult to take appropriate measures in the event of an actual fire.

[0137] Figures 10A to 10C It is a graph showing the detection waveform of the fire detector.

[0138] Reference Figure 10A The graph shows the normal waveform of the fire detector. It can be confirmed that after the peak is observed at the detection starting point A, the waveform remains constant in the detection segment d.

[0139] Reference Figure 10B The graph shows the waveform when the fire detector detects smoke. It can be confirmed that after the peak is observed at the detection starting point A, another peak is observed in the detection segment d.

[0140] Reference Figure 10C The graph shows the waveform of the fire detector during battery charging or discharging. It can be confirmed that after the peak is observed at the detection starting point A, multiple peaks are observed in the detection segment d, thus distorting the waveform.

[0141] In other words, when a fire detector without a cover is located in an energy storage system, the charging or discharging operation of the battery can generate radiated noise, and it can be seen that the radiated noise causes the fire detector to malfunction.

[0142] [Table 1]

[0143]

[0144] Table 1 shows the wire diameter and hole size according to the mesh size.

[0145] Figure 11A graph is shown, illustrating the detection waveforms of the fire detector based on the mesh size. In this case, the mesh used can be one with the same conditions as described in Table 1.

[0146] Reference Figure 11 When the battery is charged or discharged, the detection waveform of the fire detector can be confirmed according to the mesh size of the cover component of the cover detection device.

[0147] At 10 and 20 mesh, it can be confirmed that the detection waveform of the fire detector is distorted, but at 30, 40 and 60 mesh, it can be confirmed that the detection waveform of the fire detector remains constant.

[0148] [Table 2]

[0149]

[0150] Table 2 shows the detection operation time of fire detectors based on mesh size and nominal concentration. Figure 12 This is a graph showing the response time of the fire detector based on the mesh size. In this case, the mesh used can be a mesh with the same conditions as described in Table 1.

[0151] Refer to Table 2 and Figure 12 Table 2 shows the detection operation time based on nominal concentration and mesh size. Figure 12 The test operation time is shown at a nominal concentration of 15% or higher, which is the standard of the Korea Fire Safety Association (KFI).

[0152] When there is no grid, that is, when the fire detector does not include a cover member, the detection operation time can be confirmed to be the shortest. Furthermore, when the fire detector includes a cover member with a 40-mesh grid, it can be confirmed that there is no significant difference in detection operation time compared to a fire detector without a cover member. In other embodiments, when the fire detector includes a cover member with a 60-mesh or more-mesh grid, the detection operation time can be confirmed to be significantly longer.

[0153] For example, the aperture size in the case of 30 mesh can be larger than that in the case of 40 mesh, so it can be expected that the detection operation time in the case of 30 mesh can be similar to or shorter than that in the case of 40 mesh.

[0154] In summary, when the mesh size of the grid included in the cover component of the cover detection device is in the range of 30 to 60 meshes, the performance in blocking radiated noise can be excellent, and smoke detection operations can be performed quickly.

[0155] As a result, in the energy storage system according to embodiments of the present disclosure, the cover member can be arranged to surround the detection device, and wires in contact with at least one area of ​​the cover member can be included to prevent or reduce the failure of the fire detector and the fire extinguishing system, thereby relatively improving stability.

[0156] According to embodiments of this disclosure, in a fire detector, a cover member can be arranged to surround the detection device, thereby relatively reducing detector malfunctions and relatively improving stability.

[0157] Furthermore, in the energy storage system according to the embodiments of this disclosure, by arranging the cover members around the detection device, the fire detector can be arranged to relatively reduce detector failures, thereby relatively improving stability.

[0158] Although some aspects of this disclosure have been described with reference to some embodiments shown and described with respect to the accompanying drawings, the embodiments of this disclosure are not limited thereto. Instead, those skilled in the art will understand that various modifications and changes can be made to these embodiments without departing from the principles and spirit of this disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A fire detector, comprising: Detection device; Cover components surround the detection device; as well as A conductor, positioned such that one end of the conductor contacts at least one area of ​​the cover member. The cover member includes a grid, and the other end of the conductor is grounded.

2. The fire detector according to claim 1, wherein, The grid has a mesh size in the range of 30 to 60 meshes.

3. The fire detector according to claim 1, wherein... The grid includes multiple holes, and The plurality of holes have dimensions ranging from 0.29 mm to 0.62 mm.

4. The fire detector according to claim 1, wherein, The grid comprises a conductive material. The conductive material is selected from at least one of copper, aluminum, nickel, stainless steel or silver.

5. The fire detector according to claim 4, wherein, The conductive material is plated with tin or zinc.

6. The fire detector according to claim 1, wherein, The mesh form includes at least one selected from plain weave, twill weave, or embossed weave.

7. The fire detector according to claim 1, wherein... The cover component includes a first cover component and a second cover component joined together. The first cover member has a first recessed portion formed in one surface of the first cover member. The second cover member has a second recessed portion formed in one surface of the second cover member, and When the first cover member and the second cover member are joined together, the first recessed portion and the second recessed portion are positioned to overlap each other.

8. An energy storage system, comprising: Multiple battery modules; A battery rack on which the plurality of battery modules are mounted; At least one fire detector is located at the upper end of the battery rack; as well as The control device is electrically connected to the plurality of battery modules and the at least one fire detector. The at least one fire detector includes a wire, and The wire has one end that contacts at least one area of ​​the at least one fire detector and the other end that contacts the battery holder.

9. The energy storage system according to claim 8, wherein The at least one fire detector further includes a detection device and a cover member surrounding the detection device. One end of the conductor contacts at least one area of ​​the cover member, and The cover component includes a grid.

10. The energy storage system according to claim 9, wherein, The grid has a mesh size in the range of 30 to 60 meshes.

11. The energy storage system according to claim 9, wherein The grid includes multiple holes, and The plurality of holes each have dimensions ranging from 0.29 mm to 0.62 mm.

12. The energy storage system according to claim 9, wherein, The grid comprises a conductive material. The conductive material is selected from at least one of copper, aluminum, nickel, stainless steel or silver.

13. The energy storage system according to claim 12, wherein, The conductive material is plated with tin or zinc.

14. The energy storage system according to claim 8, wherein, The mesh form includes at least one selected from plain weave, twill weave, or embossed weave.

15. The energy storage system according to claim 9, wherein The cover component includes a first cover component and a second cover component joined together. The first cover member has a first recessed portion formed in one surface of the first cover member. The second cover member has a second recessed portion formed in one surface of the second cover member, and When the first cover member and the second cover member are joined together, the first recessed portion and the second recessed portion overlap each other.

16. The energy storage system according to claim 15, wherein The first opening is disposed in another surface of the first cover member, the other surface of the first cover member intersecting with the surface in which the first recessed portion of the first cover member is formed. The second opening is disposed in another surface of the second cover member, the other surface of the second cover member intersecting with the surface in which the second recess of the second cover member is formed, and When the first cover member and the second cover member are joined together, the first opening and the second opening overlap each other.

17. The energy storage system according to claim 16, wherein, When the first cover member and the second cover member are joined together, one end of the wire contacts the area where the first opening and the second opening overlap.

18. The energy storage system according to claim 9, further comprising: A first bracket, to which the detection device is fixed; as well as The second support is located on one side of the first support. The second bracket is fixed to the battery holder.

19. The energy storage system according to claim 8, wherein, The other end of the conductor is grounded.

20. The energy storage system according to claim 8, further comprising a solenoid valve, in, The solenoid valve is electrically connected to the control device and is configured to operate via an electrical signal generated by the at least one fire detector.

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