Fire prevention chamber for battery safety test

Abstract

According to an embodiment of the present invention, a fire prevention chamber (1000) for a battery safety test is provided, the fire prevention chamber comprising: a bottom surface; a side wall vertically connected to the bottom surface; and a housing upper part connected to an upper end of the side wall. The housing upper part has an open part. The side wall includes a chamber housing (100) having a predetermined opening part, a bottom part, a side part vertically coupled to the bottom part, and a table upper surface vertically connected to an upper end of the side part. An opening part having a predetermined area and an openable / closable gate are provided on the table upper surface. One end of an air cylinder for opening and closing the gate is coupled to the side part. A test table (200) for testing and inspecting a battery to be tested is mounted on the gate. In addition, the present invention can provide a fire prevention chamber for a battery safety test, the fire prevention chamber being capable of preventing damage to the test chamber and burning of the battery by suppressing overheating and explosion by rapidly dropping the battery to the water surface inside a test table filled with water immediately when overheating and explosion occur during a battery test.

Description

Fire-prevention chamber for battery safety testing

[0001] The present invention relates to a fire prevention chamber for battery safety testing, and more particularly, to a fire prevention chamber for battery safety testing characterized in that, when a battery overheats or explodes during a battery safety test, the battery is quickly lowered to the surface to extinguish the overheating and explosion.

[0002]

[0003] Recently, with the rapid increase in development of ships, electric vehicles, energy storage batteries, robots, etc., research on high-performance batteries used in these fields is also actively progressing.

[0004] Among them, lithium secondary batteries are in the spotlight in the market because they can be freely charged and discharged, and have high energy density, as they are remembered as completely discharged even if there is still electricity left when recharged before they are completely discharged, so the capacity is reduced compared to the existing charging capacity, and the lifespan of the battery is reduced, and there is almost no memory phenomenon.

[0005] However, lithium secondary batteries frequently experience fires and explosions due to electrolyte leakage, internal overheating, and overcharging. If thermal runaway occurs, the fire spreads to other batteries, making it difficult to extinguish until the device is completely destroyed.

[0006] Accordingly, we are conducting battery stability tests to evaluate the performance, lifespan, and design perfection of batteries under conditions worse than normal usage environments.

[0007] During the above battery stability test, if a battery explosion or fire accident occurs, it is difficult to initially extinguish the battery fire even if fire extinguishing water is sprayed, and there is a problem that one must wait until the battery is completely burned.

[0008] Additionally, there were problems such as damage to the chamber used for battery testing, delay in the next test due to having to wait until the battery was completely burned out, and damage to material and human resources due to harmful smoke and gases generated when the battery fire occurred.

[0009] Therefore, there is a need for a solution to these problems.

[0010] As an example, Republic of Korea Patent Publication No. 10-2435728 (August 19, 2022) proposes a fire extinguishing method using a fire suppression system for fires occurring inside a battery test chamber, which can prevent thermal decomposition and re-ignition of battery components by immediately filling the chamber with fire extinguishing water and submerging it in the fire extinguishing water when a fire occurs in a battery test body.

[0011] However, even in this case, when a fire occurs, fire extinguishing water is sprayed and time is required for the battery to be submerged, which reduces the durability of the test chamber, and no method is presented to remove the harmful smoke and gases generated before the battery is submerged.

[0012] In order to solve these problems, if a fire prevention chamber for battery safety testing is provided that is divided into a chamber housing (100) and an inspection table (200), unlike the existing invention that only consists of a chamber for battery testing, damage to the inspection table in the event of overheating or explosion can be minimized, enabling safe testing.

[0013] In addition, unlike the existing technology of spraying fire extinguishing water to submerge the battery, the inventor developed a device that can immediately suppress overheating and explosion by dropping the battery into a water-filled inspection table when overheating or explosion occurs during a battery test, thereby preventing damage to the test chamber and total battery burnout.

[0014]

[0015] Therefore, the present invention aims to solve all of the above-described problems.

[0016] In addition, another object of the present invention is to provide a fire prevention chamber for battery safety testing that can protect human and material resources by removing additional external damage that may occur when a battery overheats or explodes during a battery test and smoke and gas generated from the battery.

[0017] In addition, another object of the present invention is to provide a fire prevention chamber for battery safety testing, which can quickly extinguish overheating and explosion by dropping the battery onto the water surface inside a water-filled inspection table immediately upon occurrence of overheating and explosion during a battery test, thereby preventing damage to the test chamber and total burnout of the battery.

[0018] According to one embodiment of the present invention, a fire prevention chamber (1000) for battery safety testing comprises a bottom surface, a side wall vertically connected to the bottom surface, and a housing upper portion formed by being connected to the upper end of the side wall, wherein the housing upper portion has an open opening,

[0019] A fire prevention chamber (1000) for battery safety testing is provided, which comprises a chamber housing (100) having a predetermined opening in the side wall, a bottom portion, a side portion vertically connected to the bottom portion, and a table top surface formed by vertically connecting the top of the side portion, wherein the table top surface has an opening having a predetermined area and an openable gate, one end of an air cylinder for opening and closing the gate is connected to the side portion, and an inspection table (200) for placing and testing a battery to be tested on the gate.

[0020] More specifically, a fire prevention chamber (1000) for battery safety testing is provided, characterized in that the chamber housing (100) is provided with a chamber door (110) formed in a size corresponding to an opening of the chamber housing so as to be able to open and close the side wall of the chamber housing, a chamber outer wall (120) formed to surround the outside of the chamber housing and protect the chamber from internal and external impacts, and an exhaust hood (130) formed in a shape in which a lower portion is formed in a size corresponding to the opening and an area becomes narrower as it goes up, and which sucks in and discharges smoke and gas within the chamber.

[0021] More specifically, the inspection table (200) comprises: a driving shaft (230) in a long cylindrical shape, positioned on the upper surface of the table, one end of which protrudes from the inspection table; a gate (210) in a flat shape that covers part or all of the opening of the upper surface of the table, one end of which is provided by being connected to the outer surface of the driving shaft; a plurality of fixed clamps (220) that are connected at regular intervals on the upper surface of the table and have a shape that surrounds the driving shaft and fixes the driving shaft; a link (250) in a plate or rod shape, one end of which is connected to the protruding end of the driving shaft; an air cylinder (240) in which the other ends of the link are connected to each other and has a compression and extension function to rotate the driving shaft.

[0022] A fire prevention chamber (1000) for battery safety testing is provided, characterized by having:

[0023] More specifically, the inspection table (200) is provided with a fire prevention chamber for battery safety testing, characterized in that each of a drive shaft, a gate, a fixed clamp, a link, and an air cylinder is provided in one or a symmetrical pair.

[0024] More specifically, a fire prevention chamber (1000) for battery safety testing is provided, characterized in that the inspection table (200) further includes a water pipe (201) that penetrates the upper part of the side and injects water into the interior of the inspection table, and a drain pipe (202) that penetrates the lower part of the side and discharges water inside the inspection table.

[0025] More specifically, the inspection table (200) is provided with a fire prevention chamber (1000) for battery safety testing, characterized in that, when the battery test and inspection start, the air cylinder is extended and the gate is positioned in a state horizontal to the upper surface of the table, and when the battery overheats or explodes during the battery test and inspection, the air cylinder is compressed, the other end of a link connected to the other end of the air cylinder rotates downward, a drive shaft connected to one end of the link rotates according to the rotation of the link, and a gate connected to the outer surface of the drive shaft and one end thereof rotates as much as the drive shaft rotates to create an incline, thereby causing a battery placed on the gate to fall into the inspection table.

[0026] More specifically, a fire prevention chamber (1000) for battery safety testing is provided, characterized in that the inspection table (200) is further provided with a moving wheel (203) that can be provided at the lower part of the bottom of the inspection table and is provided so that the inspection table can move.

[0027] More specifically, a fire prevention chamber (1000) for battery safety testing is provided, characterized in that it further comprises a sensor unit (300) that detects fire and risk factors of a battery and transmits a signal, and a control unit (400) that receives a signal from the sensor unit and operates an air cylinder.

[0028] More specifically, a fire prevention chamber (1000) for battery safety testing is provided, characterized in that the sensor unit (300) is equipped with one or more sensors selected from a gas sensor, a temperature sensor, and a smoke sensor.

[0029] In more detail, the fire prevention chamber (1000) for the battery safety test further includes an internal battery holder (500) having a flat-shaped stand, and a plurality of connecting lines that connect the upper part of the chamber housing and the stand, and whose lengths are adjustable;

[0030] The battery holder is provided with a fire prevention chamber (1000) for battery safety testing, characterized in that, during a battery test, the connecting line is made long so that the holder is lowered to the bottom of the test table to receive a battery that falls into the test table, and after the battery test is completed, the connecting line is made short so that the holder is raised close to the upper surface of the test table to easily take out the battery.

[0031]

[0032] According to the present invention, a fire prevention chamber for battery safety testing can be provided that can protect human and material resources by removing additional external damage that may occur when a battery overheats or explodes during a battery test and smoke and gas generated from the battery.

[0033] In addition, the present invention can provide a fire prevention chamber for battery safety testing, which can quickly drop a battery into a water-filled inspection table immediately after overheating and explosion occur during a battery test, thereby extinguishing overheating and explosion and preventing damage to the test chamber and total burnout of the battery.

[0034]

[0035] FIG. 1 is a perspective view of a fire prevention chamber for battery safety testing according to one embodiment of the present invention.

[0036] Figure 2 is a perspective view of a chamber housing according to one embodiment of the present invention.

[0037] Figure 3 is a front view of a chamber housing according to one embodiment of the present invention.

[0038] Figure 4 is a perspective view of an inspection table according to one embodiment of the present invention.

[0039] Figure 5 is a plan view of an inspection table according to one embodiment of the present invention.

[0040] Figure 6 is a front view of an inspection table according to one embodiment of the present invention.

[0041] Figure 7 is a side view of an inspection table according to one embodiment of the present invention.

[0042]

[0043] The following detailed description of the present invention refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention, while different from each other, are not necessarily mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention. Furthermore, it should be understood that the positions or arrangements of individual components within each disclosed embodiment may be modified without departing from the spirit and scope of the present invention. Accordingly, the following detailed description is not intended to be limiting, and the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly described. Like reference numerals in the drawings designate the same or similar functionality throughout the several aspects.

[0044] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings so that a person having ordinary skill in the art to which the present invention pertains can easily practice the present invention.

[0045]

[0046] FIG. 1 is a perspective view of a fire prevention chamber for battery safety testing according to one embodiment of the present invention.

[0047] Referring to FIG. 1, a fire prevention chamber (1000) for battery safety testing may be composed of a chamber housing (100) and an inspection table (200).

[0048] First, the chamber housing (100) is formed with a bottom surface, side walls, a housing top, an opening, and an aperture.

[0049] The side walls are vertically connected based on the floor surface, and the upper part of the housing can be formed by connecting to the upper part of the side walls.

[0050] The opening may be formed with a certain size on the upper part of the housing, and the opening may be installed with a certain area on the side wall and may be provided with a width that allows at least the inspection table (200) to enter and exit.

[0051] In the above drawing 1, the chamber housing is configured as a hexahedron, but it can be configured as a shape other than a hexahedron as long as there is space inside to allow an inspection table to enter and exit for testing.

[0052] Next, the inspection table (200) may be composed of a bottom portion, a side portion, a table top surface, a gate, and an air cylinder in its overall appearance.

[0053] The bottom part may be provided in a flat shape, the side part may be formed by joining a plurality of sides vertically to the bottom part, and the table top surface may be formed by being vertically connected to the upper end of the side part.

[0054] The above inspection table (200) is expressed in a hexahedral shape in FIG. 1, but may also be provided in a curved column shape depending on the shape of the chamber housing and the locational situation of the testing laboratory and needs.

[0055] The above gate (210) may be provided to open and close an opening in the upper surface of the table.

[0056] The above air cylinder (240) is provided with one end joined to the side, so that the gate can be opened and closed.

[0057] Figure 2 is a perspective view of a chamber housing according to one embodiment of the present invention.

[0058] Figure 3 is a front view of a chamber housing according to one embodiment of the present invention.

[0059] Referring to Figures 2 and 3,

[0060] The above chamber housing (100) may be equipped with a chamber door (110), a chamber outer wall (120), and an exhaust hood (130).

[0061] The above chamber door (110) may be formed to a size corresponding to the opening of the chamber housing (100) and may be provided so as to be able to open and close the side wall of the chamber housing (100).

[0062] The above chamber door may be provided as a single door or as a symmetrical pair.

[0063] The above chamber outer wall (120) is provided to surround the exterior of the chamber housing (100) and can protect the chamber from internal and external impacts.

[0064] The chamber outer wall (120) may be composed of refractory bricks on the inside and insulating panels on the outside, and a white foam having an insulating and sound-absorbing effect may be provided between the refractory bricks and the insulating panels to prevent heat and noise from being released to the outside in the event of overheating or explosion, thereby protecting the manager so that he or she can safely conduct a battery test.

[0065] The above exhaust hood (130) is formed with a lower portion corresponding to the size of the opening and is provided with a shape in which the area becomes narrower as it goes upward, so that it can suck in and discharge smoke and gas within the chamber.

[0066] In addition, the upper part of the exhaust hood (130) is provided with an exhaust pipe (131) connected to the outside so that the smoke and gas taken in can be discharged to the outside, thereby preventing smoke and gas from leaking into the testing laboratory.

[0067] Additionally, a sensor unit (300) and a control unit (400) may be additionally provided inside the chamber housing (100).

[0068] The above sensor unit (300) (not shown) may detect fire and risk factors of the battery and transmit a signal to the control unit or manager, and the sensor used for this may be equipped with one or more sensors selected from among a gas sensor, a temperature sensor, and a smoke sensor.

[0069] Figure 4 is a perspective view of an inspection table according to one embodiment of the present invention.

[0070] Figure 5 is a plan view of an inspection table according to one embodiment of the present invention.

[0071] Figure 6 is a front view of an inspection table according to one embodiment of the present invention.

[0072] Figure 7 is a side view of an inspection table according to one embodiment of the present invention.

[0073] Referring to Figures 4 to 7,

[0074] The above inspection table (200) may be composed of a driving shaft (230), a gate (210), a fixed clamp (220), a link (250), and an air cylinder (240).

[0075] The above driving shaft (230) may be formed in a long cylindrical shape, positioned above the upper surface of the table, and having one end protruding from the inspection table.

[0076] The above gate (210) may be provided in the shape of a flat plate that covers part or all of the opening of the upper surface of the table, and one end may be connected to the outer surface of the driving shaft.

[0077] The above-mentioned fixed clamp (220) is provided in multiple pieces at regular intervals on the upper surface of the table, and is provided in a shape that surrounds the driving shaft so as to fix the driving shaft.

[0078] The above link (250) may be provided in a plate shape or a rod shape, and one end may be formed by being combined with the protruding end of the driving shaft.

[0079] The above air cylinder (240) is connected to the other end of the link and has compression and extension functions to rotate the drive shaft.

[0080] In the drawing, the drive shaft, gate, fixed clamp, link, and air cylinder are provided as a pair symmetrically, but depending on the requirements and needs of the site, one wide gate may be provided, and the drive shaft, gate, fixed clamp, link, and air cylinder may also be provided as one.

[0081] Additionally, a water pipe (201) and a drain pipe (202) may be provided to introduce and discharge water into and from the inside of the inspection table (200).

[0082] The above water pipe (201) may be provided by penetrating the upper part of the side to facilitate the inflow of water, and the above drain pipe (202) may be provided by penetrating the lower part of the side to facilitate the discharge of water.

[0083] In addition, the inspection table (200) may be additionally provided with a moving wheel (203) at the bottom of the bottom to set test conditions and move the inspection table into the chamber housing (100), and after the test is finished, the inspection table may be moved out of the chamber to discharge water, thereby improving work efficiency.

[0084] Next, the operation of the inspection table (200) will be described.

[0085] The inside of the inspection table (200) is filled with water and moved into the chamber housing (100). When the battery test and inspection begin, the air cylinder (240) is extended and the gate (210) is positioned horizontally with the upper surface of the table to place the battery and conduct the test.

[0086] When the battery overheats or explodes during a battery test and inspection, a sensor unit (300) (not shown) installed inside the chamber detects gas, temperature, and smoke and transmits a signal to the control unit (400) (not shown), and the control unit (400) transmits a signal to compress the air cylinder.

[0087] The air cylinder (240) that receives the signal is compressed, and the other end of the link (250) connected to the other end of the air cylinder (240) rotates downward.

[0088] As the above link (250) rotates downward, the drive shaft (230) connected to one end of the link rotates according to the rotation of the link.

[0089] After this, the gate (210) connected to the outer surface of the drive shaft and one end portion rotates as much as the drive shaft rotates to create an incline, and the battery placed on the gate (210) falls to the water surface inside the inspection table and is submerged, quickly extinguishing overheating and explosion.

[0090] The direction in which the above drive shaft, gate, and link rotate and pivot may be clockwise or counterclockwise depending on whether they are provided as one or a pair.

[0091] In addition, in the above process, the sensor unit (300) detects gas, smoke, and temperature generated in the event of overheating or explosion and transmits them to the control unit (400), and the control unit (400) transmits a signal to operate the air cylinder, but the manager who was monitoring the battery test may directly instruct the operation of the air cylinder (240) to compress the air cylinder (240).

[0092] Additionally, an internal battery holder (500) may be additionally provided inside the inspection table (200) to easily remove a battery that has fallen inside the inspection table.

[0093] The above internal battery holder may be composed of a holder plate and a connecting line.

[0094] The above-mentioned stand may be provided inside the inspection table (200) in a flat shape.

[0095] The above connecting line may be provided in multiple numbers to connect the upper part of the chamber housing and the above-mentioned mounting plate and to enable adjustment of the length.

[0096] During a battery test, the internal battery holder (500) is lowered to the bottom of the inspection table by extending the length of the connecting line, and can receive the battery (B) that falls inside the inspection table (200).

[0097] Additionally, after the battery test is completed, the length of the connecting line can be shortened to raise the stand closer to the upper surface of the inspection table, allowing the manager to easily remove the battery from the water surface after the risk of overheating and explosion has been quelled.

[0098]

[0099] Although the invention has been described with reference to specific details such as specific components and limited embodiments and drawings, these are provided only to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains may make modifications and variations based on these descriptions.

[0100] Therefore, the idea of ​​the present invention should not be limited to the embodiments described above, and all things that are modified equally or equivalently to the following claims as well as the claims are considered to fall within the scope of the idea of ​​the present invention.

Claims

1. In a fire prevention chamber (1000) for battery safety testing, The floor surface and, Side walls connected vertically to the floor surface, It consists of an upper part of the housing that is formed by connecting to the upper part of the side wall, The upper part of the above housing has an open opening, A chamber housing (100) having a predetermined opening in the above side wall; The bottom part, A side part vertically connected to the floor, It consists of a table top surface formed by vertically connecting the upper side and the upper side. The upper surface of the above table is provided with an opening having a predetermined area and an openable gate, One end of an air cylinder for opening and closing the gate is connected to the above side portion, An inspection table (200) for testing and inspecting a battery to be tested by placing it on the above gate; Fire prevention chamber (1000) for battery safety testing including.

2. In paragraph 1, The above chamber housing (100) is A chamber door (110) formed in a size corresponding to the opening of the chamber housing and provided so as to be able to open and close the side wall of the chamber housing; A chamber outer wall (120) that surrounds the outside of the chamber housing and protects the chamber from internal and external impacts; An exhaust hood (130) having a lower portion formed in a size corresponding to the above-mentioned opening and having a shape in which the area becomes narrower as it goes upward, and which sucks in and discharges smoke and gas within the chamber; A fire prevention chamber (1000) for battery safety testing, characterized by having:

3. In paragraph 1, The above inspection table (200) is A drive shaft (230) having a long cylindrical shape, positioned above the table top surface, and having one end protruding from the inspection table; A gate (210) having a flat shape that covers part or all of the opening of the table top surface, and one end of which is connected to the outer surface of the drive shaft; A plurality of fixed clamps (220) are provided at regular intervals on the upper surface of the table, and are shaped to surround the driving shaft and fix the driving shaft; A link (250) having a plate or rod shape and one end of which is formed by joining with a protruding end of the driving shaft; An air cylinder (240) that is connected to the other end of the above link and has compression and extension functions to rotate the drive shaft; A fire prevention chamber (1000) for battery safety testing, characterized by having:

4. In paragraph 3, The above inspection table (200) is A fire prevention chamber for battery safety testing, characterized in that a drive shaft, a gate, a fixed clamp, a link, and an air cylinder are each provided in one or a symmetrical pair.

5. In paragraph 3, The above inspection table (200) is A water pipe (201) is provided penetrating the upper part of the side and injecting water into the inside of the inspection table; A drain pipe (202) is provided penetrating the lower part of the side and discharging water inside the inspection table; A fire prevention chamber (1000) for battery safety testing characterized by further comprising:

6. In paragraph 3, The above inspection table (200) is When starting battery testing and inspection, The air cylinder is extended and the gate is positioned horizontally with the table top surface, If the battery overheats or explodes during battery testing and inspection, A fire prevention chamber (1000) for battery safety testing, characterized in that an air cylinder is compressed, the other end of a link connected to the other end of the air cylinder rotates downward, a drive shaft connected to one end of the link rotates according to the rotation of the link, and a gate connected to the outer surface of the drive shaft and one end thereof rotates as much as the drive shaft rotates to create an incline, thereby causing a battery placed on the gate to fall into the inspection table.

7. In paragraph 3, The above inspection table (200) is A moving wheel (203) that can be provided on the lower part of the bottom of the examination table and is provided so that the examination table can be moved; A fire prevention chamber (1000) for battery safety testing characterized by further comprising:

8. In paragraph 1, The above fire prevention chamber (1000) for battery safety testing is, A sensor unit (300) that detects fire and hazardous elements in the battery and transmits a signal; A control unit (400) that receives a signal from the above sensor unit and operates an air cylinder; A fire prevention chamber (1000) for battery safety testing characterized by further comprising:

9. In paragraph 8, The above sensor unit (300) is A fire prevention chamber (1000) for battery safety testing, characterized in that it is equipped with one or more sensors selected from a gas sensor, a temperature sensor, and a smoke sensor.

10. In paragraph 1, The above fire prevention chamber (1000) for battery safety testing is, A flat-shaped stand, Connecting the upper part of the chamber housing and the above-mentioned mounting plate, and having multiple connecting lines with adjustable lengths Further comprising an internal battery holder (500); The above battery holder is, When testing a battery, the connecting line is made long and the stand is lowered to the bottom of the inspection table to receive the battery that falls into the inspection table. After the battery test is completed, the length of the connecting line is shortened and the stand is raised close to the upper surface of the inspection table so that the battery can be easily removed. Fire prevention chamber (1000) for battery safety testing featuring.

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