Fire extinguishing device, charging and discharging inspection device provided with same, and fire extinguishing method

Abstract

Provided is a fire extinguishing device or the like that does not require the provision of a tank for immersing a secondary battery and that can achieve a rapid fire extinguishing function with a simple configuration. A fire extinguishing device (1) is provided with: a plate (10) on which one or more secondary batteries (B) are placed; a surrounding part (11) provided so as to surround the periphery of the secondary battery (B) placed on the plate (10); a lifting unit (20) that lifts the plate (10) or the surrounding unit (11) and makes the plate (10) and the surrounding unit (11) in close contact with each other; and a supply unit (30) that supplies a fire extinguishing agent to a region (T) formed by the plate (10) and the surrounding unit (11).

Description

Technical Field

[0001] The present invention relates to a fire extinguishing device for extinguishing a fire occurring in a secondary battery, a charge and discharge inspection device using the fire extinguishing device, and a fire extinguishing method. Background Art

[0002] As conventional techniques for extinguishing a fire occurring in a secondary battery, for example, Patent Documents 1 and 2 describe them.

[0003] Patent Document 1 describes a secondary battery conveying tray for accommodating and conveying a battery tray in which a plurality of secondary batteries are arranged in a row in the thickness direction. The secondary battery conveying tray has a cover that seals the opening watertightly when water accumulates in the secondary battery conveying tray.

[0004] Patent Document 1 discloses that, with such a structure, when a secondary battery overheats or catches fire, water can be supplied to the secondary battery transport tray to immerse a plurality of secondary batteries simultaneously and cool or extinguish the fire in a short time.

[0005] On the other hand, a battery charging and discharging device equipped with a fire extinguishing device for extinguishing a battery fire and a fire extinguishing method for the battery charging and discharging device are described in Patent Document 2. In addition, the battery charging and discharging device is provided with a fire detection sensor on each test rack to which the battery is transported by a stacker crane, a gas jet type primary fire extinguisher is provided on the stacker crane, and an immersion tank is provided on one of the test racks.

[0006] Patent document 2 states that when a battery fire is detected by a fire detection sensor, the fire is extinguished by a primary fire extinguisher. If the battery fire cannot be extinguished even with the primary fire extinguisher, a stacker crane is used to transport the battery to an immersion tank for secondary fire extinguishing.

[0007] Prior art literature

[0008] Patent Literature

[0009] Patent Document 1: Japanese Patent No. 6741308

[0010] Patent Document 2: Japanese Patent No. 5595332

[0011] However, the secondary battery transport tray described in Patent Document 1 is a tray for accommodating and transporting a plurality of battery trays each containing a plurality of secondary batteries. Therefore, the weight of the transported object is naturally large, and a high transport capacity is required. In addition, when water accumulates in the secondary battery transport tray, the plurality of openings need to be sealed watertightly (the Figure 1), which may complicate the structure or take time before firefighting can begin.

[0012] Furthermore, the battery charging and discharging equipment described in Patent Document 2 requires a space to be cleared on one of the test racks to install an immersion tank, or requires the batteries to be transported by a stacker crane, which may also lead to a complicated structure or take time before starting fire extinguishing.

[0013] Therefore, the present invention provides a fire extinguishing device which does not require a tank for immersing a secondary battery and can realize a rapid fire extinguishing function with a simple structure, and a charge and discharge inspection device and a fire extinguishing method having the fire extinguishing device. Summary of the invention

[0014] The fire extinguishing device of the present invention comprises: a plate for placing one or more secondary batteries; a surrounding portion configured to surround the secondary batteries placed on the plate; a lifting portion for lifting the plate or the surrounding portion so that the plate and the surrounding portion are in close contact; and a supply portion for supplying a fire extinguishing agent to an area formed by the plate and the surrounding portion.

[0015] As a result, the plate or the surrounding part rises or falls, and they are brought into close contact with each other, so that the secondary battery placed on the plate is accommodated in the area divided by the plate and the surrounding part. In addition, the fire extinguishing agent is supplied to the area by the supply part.

[0016] Here, it is preferable that the surrounding portion is provided to surround the circumference and upper portion of the secondary battery placed on the plate, and an opening for injecting a fire extinguishing agent is provided in a part of the surrounding portion or the plate.

[0017] Thus, the secondary battery placed on the plate can be covered up to the top except for the surrounding areas. Furthermore, even if the secondary battery is covered up to the top, the fire extinguishing agent is supplied to the area from the opening.

[0018] Furthermore, it is preferable that the fire extinguishing device includes a pressurizing unit that is provided so as to be housed in the area and pressurize the secondary battery in the area to the outside of the area.

[0019] Thereby, the secondary batteries located in the area can be pressurized to the outside of the area.

[0020] Furthermore, it is preferable that the fire extinguishing device has a container for conveying one secondary battery or a plurality of secondary batteries arranged in a thickness direction, and the container is placed on the plate.

[0021] Thereby, the secondary battery housed in the container and transported can be directly placed on the plate (while being housed in the container).

[0022] Furthermore, it is preferred that the fire extinguishing agent is liquid, and the fire extinguishing device has a tray, which is arranged at the lower part of the plate and is used to receive the liquid overflowing from the area.

[0023] Thus, even if the liquid fire extinguishing agent (for example, water) supplied from the supply unit overflows from the area, the water can be received by the tray.

[0024] Furthermore, the charge and discharge inspection device of the present invention comprises: the fire extinguishing device; a probe unit connected to the secondary battery; and a lifting unit that lifts and lowers the plate or the probe unit to connect the secondary battery to the probe unit.

[0025] Thereby, the plate or the probe unit can be raised or lowered, and the secondary battery and the probe unit can be connected or disconnected, so that the charging and discharging inspection can be performed with the structure including the fire extinguishing device.

[0026] In particular, it is preferable that the charge and discharge inspection device includes a cooling unit that is provided on an upper portion of the plate and cools the secondary battery from below.

[0027] Thus, the secondary battery placed on the plate can be cooled from below by the cooling unit.

[0028] On the other hand, the fire extinguishing method of the present invention comprises: a step of placing one or more secondary batteries on a plate; a step of lowering an enclosure that is arranged to surround the secondary batteries placed on the plate or raising the plate so that the plate is in close contact with the enclosure; and a step of supplying a fire extinguishing agent from an opening portion to an area formed by the plate and the enclosure.

[0029] (1) The fire extinguishing device of the present invention comprises: a plate for placing one or more secondary batteries; an enclosure configured to surround the secondary batteries placed on the plate; a lifting portion for lifting the plate or the enclosure so that the plate and the enclosure are in close contact; and a supply portion for supplying a fire extinguishing agent to an area formed by the plate and the enclosure. By having the above structure, the plate or the enclosure rises or falls so that they are in close contact with each other, so that the secondary batteries are accommodated in the area divided by the plate and the enclosure. Furthermore, the fire extinguishing agent is supplied to the area by the supply portion, so that the fire extinguishing agent is supplied without leaking out of the area, and a fire occurring in the secondary battery can be extinguished.

[0030] In short, when the fire extinguishing agent is water, the area to which water is supplied is a tank (immersion tank), so the fire extinguishing device of the present invention does not need to provide a tank for immersing the secondary battery and can achieve a rapid fire extinguishing function with a simple structure.

[0031] (2) The surrounding portion is provided to surround the surroundings and the upper portion of the secondary battery placed on the plate, and an opening portion for injecting a fire extinguishing agent is provided in the surrounding portion or a part of the plate. With the above-mentioned structure, the secondary battery placed on the plate is covered except for the surroundings to the upper portion, and the fire extinguishing agent is supplied to the area from the opening portion, thereby further preventing the fire extinguishing agent from leaking to the outside and allowing the fire extinguishing agent to fill the area, thereby achieving more effective fire extinguishing.

[0032] (3) The fire extinguishing device has a pressurizing portion, which is arranged to be accommodated in the area and pressurize the secondary batteries located in the area to the outside of the area. Through the above structure, the secondary batteries located in the area can be pressurized to the outside of the area, thereby preventing the secondary batteries from expanding in the charge and discharge inspection device and the battery case from being deformed due to the expansion of the secondary batteries.

[0033] (4) The fire extinguishing device has a container for conveying a single secondary battery or a plurality of secondary batteries arranged in the thickness direction, and the container is placed on the board. With the above structure, the secondary battery contained in the container and conveyed can be directly placed on the board, thereby improving the work efficiency in the charge and discharge inspection.

[0034] (5) The fire extinguishing agent is a liquid, and the fire extinguishing device has a tray, which is arranged at the lower part of the plate and is used to receive the liquid overflowing from the area. With the above structure, even if the liquid supplied from the supply part, that is, the fire extinguishing agent, overflows from the area, the liquid can be received by the tray, thereby improving the efficiency of the cleaning work after the fire extinguishing work, or preventing the liquid from splashing onto other devices and causing malfunctions, etc.

[0035] (6) The charge and discharge inspection device of the present invention comprises: these fire extinguishing devices; a probe unit connected to the secondary battery; and a lifting part, which raises and lowers the plate or the probe unit to connect the secondary battery to the probe unit. Through the above structure, the plate or the probe unit rises or falls, and the secondary battery and the probe unit can be connected or disconnected. Therefore, the charge and discharge inspection can be carried out by the structure equipped with the fire extinguishing device. During the charge and discharge inspection, even if a fire occurs in the secondary battery, the fire extinguishing operation can be carried out quickly.

[0036] (7) The charge and discharge inspection device has a cooling unit, which is arranged on the upper part of the plate and cools the secondary battery from below. With the above structure, the secondary battery placed on the plate can be cooled from below by the cooling unit, thereby preventing the secondary battery from heating up and expanding during the charge and discharge inspection, and preventing the battery case from deforming due to the expansion of the secondary battery.

[0037] On the other hand, the fire extinguishing method according to the present invention can have the same effects as the fire extinguishing device according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic perspective view showing a fire extinguishing device according to an embodiment of the present invention.

[0039] Figure 2 It is a schematic perspective view showing a fire extinguishing device according to an embodiment of the present invention.

[0040] Figure 3 It is a schematic diagram showing the configuration of a charge and discharge inspection device according to an embodiment of the present invention.

[0041] Figure 4 It is a schematic diagram showing the configuration of a charge and discharge inspection device according to an embodiment of the present invention.

[0042] Figure 5 It is a schematic diagram showing the configuration of a charge and discharge inspection device according to an embodiment of the present invention.

[0043] Figure 6 It is a schematic diagram showing the configuration of a charge and discharge inspection device according to an embodiment of the present invention.

[0044] Figure 7 It is a schematic configuration diagram showing a charge and discharge inspection device according to another embodiment of the present invention.

[0045] Figure 8 It is a schematic configuration diagram showing a charge and discharge inspection device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0046] Hereinafter, an embodiment of the present invention will be described in detail. However, the description of the constituent elements described below is an example (representative example) of the embodiment of the present invention, and the present invention is not limited to the following contents unless the gist of the invention is changed.

[0047] [Fire extinguishing equipment]

[0048] Figure 1 It is a schematic perspective view showing a fire extinguishing device according to an embodiment of the present invention.

[0049] The fire extinguishing device 1 comprises: a plate 10 on which a secondary battery B is placed; a surrounding portion 11 provided to surround the secondary battery B placed on the plate 10; and a lifting portion 20 (20a) for lifting and lowering the surrounding portion 11 so that the plate 10 and the surrounding portion 11 are in close contact. In addition, the fire extinguishing device 1 comprises a supply portion 30 for supplying a fire extinguishing agent to a region T formed by the plate 10 and the surrounding portion 11 (hereinafter referred to as "region").

[0050] The fire extinguishing agent can extinguish the fire in the secondary battery, for example, water. In addition to water, a strengthening liquid (potassium carbonate aqueous solution), foam (chemical foam, mechanical foam), gas (carbon dioxide, halide) or powder (bicarbonate, phosphate, etc.) can also be used as a fire extinguishing agent.

[0051] One or more secondary batteries are mounted on the board 10. Figure 1 In the example shown, two secondary batteries, namely, secondary batteries B1 and B2 , are mounted on the board 10 .

[0052] As described above, the surrounding portion 11 surrounds the secondary battery B and forms the region T together with the plate 10. The surrounding portion 11 is a member that can withstand water pressure (when the fire extinguishing agent is water) or withstand the pressurizing portion 50 described later (see Figure 7 )'s pressurized parts, materials (metal or resin, etc.), dimensions, etc. can be appropriately changed in design.

[0053] The lifting unit 20a is a mechanism for lifting the surrounding unit 11. The lifting unit 20a may be a hydraulic cylinder or an air cylinder, etc., and there is no particular limitation as long as it is a mechanism that can support and lift the surrounding unit 11. Figure 1 The lifting part 20a shown in the other figures is only a schematic diagram for explaining the function of the lifting part, and the detailed structure is omitted.

[0054] In addition, if Figure 1 As shown in (A), the plate 10 and the surrounding portion 11 are separated (separated by a certain distance) in a substantially vertical direction. Therefore, for example, the secondary battery B can be transported in the lateral direction (horizontal direction) and placed on the plate 10 .

[0055] Furthermore, the lifting portion 20a causes the surrounding portion 11 to move from Figure 1 (A) The state shown is reduced (refer to Figure 1 (A) arrow), such as Figure 1 As shown in (B), the plate 10 and the surrounding portion 11 are brought into close contact with each other. Thus, a region T surrounding the lower side and the surrounding side of the secondary battery B is formed by the plate 10 and the surrounding portion 11 .

[0056] exist Figure 1 In the example shown, the surrounding portion 11 is provided to divide the secondary batteries B1 and B2 and the lifting portion 20a into three regions, so in this case, a region T1 for accommodating the secondary battery B1 and a region T2 for accommodating the secondary battery B2 are formed respectively.

[0057] In order to improve adhesion, the contact surface (contact portion) between the plate 10 and the surrounding portion 11 is preferably made of a material that can improve adhesion, such as a resin or rubber sheet. In this case, the material can be used on the plate 10 side, the surrounding portion 11 side, or both.

[0058] Here, from Figure 1 (B) It can be seen that the area T is formed to surround the bottom and surrounding of the secondary battery B, but is open at the top. Therefore, when the fire extinguishing agent is water, if water is supplied from the top through the supply unit 30, the water will not leak to the outside but accumulate in the area T. As a result, the secondary battery B in the area T is submerged, and the fire caused by the secondary battery is extinguished.

[0059] Furthermore, when the fire extinguishing agent is other than water, for example, foam (foam fire extinguishing agent), the foam fire extinguishing agent can be prevented from flowing out by forming such an area T, and the burning object (secondary battery) can be more effectively covered to suffocate the fire. In addition, when the fire extinguishing agent is a gas (carbon dioxide), since the specific gravity of carbon dioxide is greater than that of air, it is easy to stay in the area T, which can achieve more effective fire extinguishing.

[0060] The supply unit 30 can be operated manually or automatically upon detection of a fire. For example, since the volume of the area T is known in advance, when the fire extinguishing agent is water, the supply unit 30 can automatically supply water to the extent that the volume of the area T is filled.

[0061] also, Figure 2 It is also a schematic perspective view showing a fire extinguishing device according to an embodiment of the present invention. Figure 2 The fire extinguishing device 1 shown in the figure further includes a surrounding portion 11 surrounding the four sides of the secondary battery B and a top plate 11U (11U1, 11U2) covering the upper part of the secondary battery B. Figure 1 The same structures and functions and effects as those already described are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0062] Here, the top plate 11U has openings C (C1, C2) through which the fire extinguishing agent supplied from the supply unit 30 passes (see Figure 2 (B)). The opening C can be regarded as a port for injecting the fire extinguishing agent, and its size, position, shape, etc. can be appropriately changed in design. For example, the opening C can also be provided on the side of the surrounding portion 11 or the side of the plate 10.

[0063] so, Figure 2 The fire extinguishing device 1 shown has a surrounding portion (surrounding portion 11 and top plate 11U) provided to surround the surroundings and upper portion of the secondary battery B placed on the plate 10, and has an opening C in the upper portion. With such a structure, the fire extinguishing agent can be further filled in the area T, and more effective fire extinguishing can be achieved.

[0064] In the present embodiment, a plurality of top plates 11U (top plates 11U1 and 11U2 ) are provided for each of the regions T1 and T2 , but the top plate 11U may be formed of a single top plate. Furthermore, the surrounding portion 11 and the top plate 11U may be formed integrally.

[0065] Furthermore, as described later, when the probe unit P is connected to the secondary battery B located in the area T (see Figure 8 (B) ), an opening for the probe unit (not shown) can be provided partially in the top plate 11U. That is, in addition to the opening C, an opening through which the probe unit P can be connected to the secondary battery B can be provided as appropriate.

[0066] In addition to the above-mentioned structure, the fire extinguishing device 1 further includes a tray 12 for receiving water overflowing from the area T (see Figure 3 )、Pressing section 50 (refer to Figure 7 ) etc., and their detailed description will be given later.

[0067] [Charge and discharge inspection device]

[0068] Figure 3 to Figure 6 1 is a schematic diagram showing a charge and discharge inspection device according to an embodiment of the present invention. The charge and discharge inspection device 100 includes the above-mentioned fire extinguishing device 1. In addition, for parts having the same structure and effect as those already described, the same reference numerals are attached and their detailed description is omitted.

[0069] In the following description, water is used as the fire extinguishing agent and the supply unit 30 supplies water. Also, since water is stored in the area T, the area T (areas T1 and T2) is referred to as "immersion tank T (immersion tank T1 and T2)" for description.

[0070] like Figure 3 As shown, the charge and discharge inspection device 100 is composed of a support member S, and includes a probe unit P, a tray 12 , a lifting unit 20 ( 20 b ), and a cooling unit 40 in addition to the fire extinguishing device 1 .

[0071] The probe unit P is connected (installed) to the secondary battery to be inspected during the charge and discharge inspection. Specifically, the electrode (positive electrode) of the secondary battery B contacts the probe of the positive electrode of the probe unit P, and the electrode (negative electrode) of the secondary battery B contacts the probe of the negative electrode of the probe unit P. Furthermore, power is supplied to the secondary battery B via the probe unit P from a charge and discharge power source (not shown) connected via a cable (not shown).

[0072] In addition, the tray 12 is used to receive water overflowing from the immersion tank T when water is supplied to the immersion tank T by the supply unit 30 and water is accumulated (see Figure 6 ).exist Figure 3 In the example shown, the pan 12 is disposed at the lower portion of the plate 10, but as long as it is capable of receiving water overflowing from the immersion tank T, the position of the pan, the width and depth of the pan, the material of the pan, or the drainage processing function of the pan can be appropriately changed in design.

[0073] Furthermore, the cooling unit 40 is provided on the upper portion of the plate 10 to cool the secondary battery B from below. The cooling unit 40 may be a cooling fan that blows cool air toward the secondary battery B, for example.

[0074] The charge and discharge inspection device 100 has a container (not shown) for conveying one secondary battery or a plurality of secondary batteries arranged in the thickness direction. Therefore, the secondary battery conveyed and housed in the container can be directly placed on the plate 10 .

[0075] Furthermore, an opening can be provided on the lower surface of the container. Therefore, for example, by sending cold air to the opening through the cooling unit 40, the secondary battery B accommodated in the container can be cooled from below.

[0076] The lifting unit 20b is a mechanism for lifting the plate 10. The lifting unit 20b may be a hydraulic cylinder, an air cylinder, or the like, and is not particularly limited as long as it can support and lift the plate 10 and the secondary battery B placed on the plate 10.

[0077] In the description of the lifting unit 20 in the present embodiment, for the sake of convenience, it is assumed that the lifting unit 20 a lifts the surrounding portion 11 , and the lifting unit 20 b lifts the plate 10 .

[0078] [Operation of the charge and discharge inspection device]

[0079] The following is based on Figure 3 to Figure 6 , the operation of the charge and discharge inspection device involved in this embodiment is explained.

[0080] First, the lifting unit 20a moves the surrounding unit 11 upward after the secondary battery B is placed on the plate 10. Figure 3 If the lifting part 20a makes the surrounding part 11 descend, then Figure 4 As shown, the plate 10 is in close contact with the surrounding portion 11 to form an immersion tank T surrounding the secondary battery B.

[0081] Next, the lifting unit 20b moves the plate 10 to Figure 4 If the lifting part 20b makes the plate 10 rise, then Figure 5 As shown, the plate 10 , the secondary battery B placed on the plate 10 , the lifting portion 20 a , etc. also rise.

[0082] Then, the charge and discharge test is performed in the state where the immersion tank T is formed. Figure 5 In the embodiment, the probe unit P is not connected to the secondary battery B, and the lifting part 20 b can lift the plate 10 to a position where the probe unit P is connected to the secondary battery B.

[0083] In addition, it can further improve Figure 3 The position of the surrounding portion 11 is supported by the lifting portion 20a. For example, when the lifting portion 20b lifts the plate 10 to form the immersion tank T, the lifting portion 20a can support the surrounding portion 11 at the position where the probe unit P and the secondary battery B are connected.

[0084] Here, it is assumed that a fire occurs in the secondary battery B during the charge and discharge inspection, and the lifting unit 20b moves the plate 10 to Figure 5 The arrow indicates the direction of descent.

[0085] Afterwards, if Figure 6 As shown, water is supplied by the supply unit 30, so that water is accumulated in the immersion tank T, and the secondary batteries B in the immersion tank T are immersed to extinguish the fire.

[0086] As described above, the immersion tank T is formed by the fire extinguishing device 1 during the charge and discharge inspection, so there is no need to pre-set a tank for immersing the secondary battery, which can simplify the structure. In addition, by lowering the plate 10, the secondary battery B is moved, and the immersion tank T is supplied with water by the supply unit 30, so that even during the charge and discharge inspection, a rapid fire extinguishing operation can be achieved.

[0087] In addition, as described above, the immersion tank T can be formed for each secondary battery B (for example, see Figure 1 The supply unit 30 can also supply water only to the immersion tank T that accommodates the secondary battery B that has caught fire. As a result, the secondary battery B that has not caught fire will not be immersed and can be effectively used.

[0088] In addition, when no fire occurs during the charge and discharge inspection, for example, the lifting portion 20a continues to support the surrounding portion 11 at the original position ( Figure 2 The lifting part 20b lowers the plate 10 and the secondary battery B placed on the plate 10, thereby returning to the original state ( Figure 3 The charge and discharge inspection is completed.

[0089] [Pressure section]

[0090] Figure 7 , Figure 8 1 is a schematic diagram showing a charge and discharge inspection device according to another embodiment of the present invention. Specifically, the fire extinguishing device 1 includes a pressurizing unit 50. Figure 7 , Figure 8 The pressurizing unit 50 will be mainly described, and therefore description of some structures such as a lifting unit for lifting the plate 10 and the surrounding unit 11 and a cooling unit 40 will be omitted.

[0091] The fire extinguishing device 1 has a pressurizing portion 50 on the plate 10 (see Figure 7 (A)). Here, if the lifting unit 20a as described above is used (refer to Figure 1 ) makes the surrounding part 11 descend, then Figure 7(B) shows an immersion tank T. The pressurizing unit 50 is accommodated in the immersion tank T together with the secondary battery B. That is, the pressurizing unit 50 is provided on the plate 10 (see Figure 7 (A)).

[0092] After the immersion tank T is formed, the pressurizing unit 50 presses the secondary battery B in the immersion tank T toward the outside of the immersion tank T. Figure 7 In the example shown in (B), the pressurizing unit 50 extends in the horizontal direction (see arrow), and one end thereof contacts the secondary battery B (see dashed-line frame), thereby pressurizing the secondary battery B toward the outside of the immersion tank T.

[0093] Therefore, if Figure 7 As shown in (C), the secondary battery B is tightly pressed against the wall surface Ts1 of the surrounding portion 11. Meanwhile, the pressurizing portion 50 also presses the secondary battery B, and the other end thereof is tightly pressed against the wall surface Ts2 located in the opposite direction to the wall surface Ts1.

[0094] In this way, by pressurizing the secondary battery B with the pressurizing unit 50 , it is possible to prevent the secondary battery B from expanding in the charge and discharge inspection device, or to prevent the battery case from deforming due to the expansion of the secondary battery B.

[0095] Furthermore, if the secondary battery is in a pressurized state, it is possible to mitigate the impact when the secondary battery malfunctions and ruptures, etc. Furthermore, by mitigating such impacts, it is possible to prevent secondary damage to the container, other normal secondary batteries, etc.

[0096] Thereafter, if the lifting unit 20b (see Figure 3 ) causes the plate 10 to rise (refer to Figure 8 (A) arrow), the secondary battery B is connected to the probe unit P (refer to Figure 8 (B)).

[0097] Furthermore, if a fire occurs during the charge and discharge inspection, the fire can be extinguished by the lifting unit 20b (see Figure 3 ) After the plate 10 is lowered and separated from the probe unit P, the fire is extinguished by the supply unit 30 (refer to Figure 8 (C)).

[0098] The present embodiment described above is merely an example, and the configurations of the fire extinguishing device 1 and the charge and discharge inspection device 100 can be appropriately changed in design without departing from the gist of the present invention.

[0099] For example, the pressurizing unit 50 may be a hydraulic cylinder, an air cylinder, or other mechanism as long as it can pressurize the secondary battery B in the immersion tank T toward the outside of the immersion tank T.

[0100] In addition, if Figure 1As shown in FIG. 1 , there is a gap between the secondary battery B and the surrounding portion 11, so the direction of pressurization can also be arbitrarily designed. Figure 7 In the example shown, the pressurizing portion 50 may be provided on the plate 10 so as to pressurize the secondary battery B from the front side toward the rear side.

[0101] Furthermore, regarding the structure of the lifting parts 20 (20a, 20b), the number of lifting parts, the positions where the lifting parts are provided, or the structure of the lifting parts themselves can be appropriately changed in design as long as the following functions can be achieved.

[0102] To form an immersion tank,

[0103] (1) The surrounding part is lowered to make it in close contact with the plate located below.

[0104] (2) The plate is raised to make it in close contact with the surrounding part located above.

[0105] To perform charge and discharge inspection,

[0106] (1) The surrounding portion and the plate are raised to connect the secondary battery to the probe unit.

[0107] (2) The surrounding portion and the plate are lowered to separate the secondary battery from the probe unit.

[0108] (3) The probe unit is lowered to connect the secondary battery to the probe unit.

[0109] (4) The probe unit is raised to separate the secondary battery from the probe unit.

[0110] In addition, the charge and discharge inspection in this embodiment connects the probe unit to the secondary battery, and supplies power to the secondary battery from the charge and discharge power supply via the probe unit, but the fire extinguishing device 1 and the charge and discharge inspection device 100 can also use various inspection methods such as aging (after applying voltage for charging, discharging for several days).

[0111] Industrial Applicability

[0112] The present invention can be used as a fire extinguishing device that does not require a tank for immersing a secondary battery and can achieve a rapid fire extinguishing function with a simple structure, and a charge and discharge inspection device and a fire extinguishing method having the fire extinguishing device, and is therefore industrially useful.

[0113] Description of Reference Numerals

[0114] 1 Fire extinguishing equipment

[0115] 10 Plates

[0116] 11 Encirclement

[0117] 11U, 11U1, 11U2 top panel

[0118] 12 trays

[0119] 20 Lifting unit

[0120] 20a Lifting part (for surrounding part)

[0121] 20b Lifting unit (for plate)

[0122] 30 Supply Department

[0123] 40 Cooling unit

[0124] 50 Pressurizing section

[0125] 100 Charge and discharge inspection device

[0126] T, T1, T2 areas (immersion tanks)

[0127] Ts1, Ts2 wall

[0128] B, B1, B2 Secondary battery

[0129] P, P1, P2 probe unit

[0130] C, C1, C2 opening

[0131] S Support components

Claims

1. A fire extinguishing device, comprising: A board for placing one or more secondary batteries; A surrounding portion, configured to surround the secondary battery placed on the plate; A lifting part, which lifts the plate or the surrounding part so that the plate is in close contact with the surrounding part; as well as The supply unit supplies the fire extinguishing agent to a region formed by the plate and the surrounding portion.

2. The fire extinguishing device according to claim 1, wherein: The surrounding portion is configured to surround the periphery and upper portion of the secondary battery placed on the plate, The surrounding portion or a part of the plate has an opening for injecting the fire extinguishing agent.

3. The fire extinguishing device according to claim 1, wherein: The fire extinguishing device includes a pressurizing unit, which is provided to be housed in the area and to pressurize the secondary battery located in the area toward the outside of the area.

4. The fire extinguishing device according to claim 1 or 2, wherein: The fire extinguishing device has a container for conveying one secondary battery or a plurality of secondary batteries arranged in a thickness direction, and the container is placed on the plate.

5. The fire extinguishing device according to claim 1 or 2, wherein: The fire extinguishing agent is a liquid. The fire extinguishing device has a pan disposed at a lower portion of the plate for receiving liquid overflowing from the area.

6. A charge and discharge inspection device, comprising: The fire extinguishing device according to any one of claims 1 to 3; a probe unit connected to the secondary battery; and The lifting unit lifts and lowers the plate or the probe unit to connect the secondary battery to the probe unit.

7. The charge and discharge inspection device according to claim 6, wherein: The charge and discharge inspection device includes a cooling unit provided on the upper portion of the plate to cool the secondary battery from below.

8. A fire extinguishing method comprising: The step of placing one or more secondary batteries on the board; A step of lowering a surrounding portion arranged to surround the secondary battery placed on the plate or raising the plate to bring the plate into close contact with the surrounding portion; as well as The step of supplying a fire extinguishing agent from the opening portion to a region formed by the plate and the surrounding portion.

Images