Fire-fighting box for battery swap station and battery swap station comprising fire-fighting box
By installing an adjustment mechanism in the fire-fighting box and connecting it to a heat transfer medium source, the temperature of the fire-fighting fluid can be adjusted and separated, thus solving the problem of fire-fighting fluid freezing and improving the fire-fighting reliability and safety of the battery swapping station.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-04-07
AI Technical Summary
In cold environments, the water stored in the fire-fighting box of the battery swapping station is prone to freezing, which can cause the fire-fighting function to fail, affect the timely handling of thermal runaway batteries, and threaten the safety of the battery swapping station.
A fire-fighting box comprising a housing and an adjustment mechanism was designed. It is connected to a heat transfer medium source via a medium connecting pipe, and the main body exchanges heat with the fire-fighting liquid to ensure that the temperature of the fire-fighting liquid is not lower than the freezing point. It can also be separated from the heat transfer medium source during transportation to avoid affecting fire-fighting efficiency.
It effectively prevents the fire-fighting fluid from freezing, ensures the effectiveness of the fire-fighting fluid, improves the fire-fighting reliability and safety of the battery swapping station, and simplifies the fire-fighting process.
Smart Images
Figure CN224085866U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of battery swap station, especially to a fire-fighting box for battery swap station and a battery swap station containing the same. BACKGROUND
[0002] Since a large number of batteries are stored in the battery swap station, the problem of thermal runaway of the batteries cannot be avoided during storage or charging in the battery swap station. If the thermal runaway batteries are not treated in time, a fire or explosion may easily occur, affecting the safety of the entire battery swap station. Therefore, a fire-fighting box is usually provided in the station to treat the thermal runaway batteries and prevent the influence of thermal runaway from being enlarged.
[0003] Since water is low in price, large in specific heat capacity, and easy to obtain, water is usually added as a fire-fighting liquid in the fire-fighting box. However, in a cold environment, the water stored in the fire-fighting box is easy to freeze, resulting in failure of the fire-fighting function of the fire-fighting box. SUMMARY
[0004] Therefore, the utility model aims to provide a fire-fighting box for a battery swap station and a battery swap station containing the same, which can adjust the temperature of the fire-fighting liquid in the fire-fighting box to prevent the fire-fighting liquid from freezing, thereby ensuring the timeliness of the treatment of thermal runaway batteries and improving the safety of the battery swap station.
[0005] The utility model provides a fire-fighting box for a battery swap station, comprising:
[0006] a box body comprising a containing cavity, a fire-fighting liquid being arranged in the containing cavity, and the box body being used for containing thermal runaway batteries,
[0007] and an adjusting mechanism comprising a main body and a medium connecting pipe, the main body being arranged inside or outside the containing cavity and being used for exchanging heat with the fire-fighting liquid in the containing cavity, the medium connecting pipe being used for connecting a heat-carrying medium source to enable the heat-carrying medium to flow through the inside of the main body, and the medium connecting pipe being configured to enable the main body to be separated from the heat-carrying medium source.
[0008] In an embodiment, the box body further comprises a functional cavity, the functional cavity being arranged adjacent to the containing cavity, and the main body being arranged in the functional cavity.
[0009] In an embodiment, the main body comprises a medium inlet pipe and a medium outlet pipe, the medium connecting pipe comprises a first main pipe, a second main pipe, and a connecting piece, one end of the first main pipe and the second main pipe is connected to the heat-carrying medium source, the other end is connected to the connecting piece, and the medium inlet pipe and the medium outlet pipe are detachably connected to the connecting piece.
[0010] In an embodiment, the main body comprises a medium inlet pipe and a medium outlet pipe, the medium connecting pipe comprises a first main pipe, a second main pipe and a connecting piece, the connecting piece comprises a first self-sealing plug and a second self-sealing plug which are detachably connected, one end of the first main pipe and the second main pipe is connected to the heat medium source, and the other end is connected to the first self-sealing plug, and the medium inlet pipe and the medium outlet pipe are connected to the second self-sealing plug.
[0011] In an embodiment, the medium connecting pipe comprises a fixing piece, one end of the fixing piece is connected to the connecting piece, and the other end is connected to the battery rack above the box.
[0012] In an embodiment, the accommodating cavity is provided with a detection piece for detecting the temperature of the fire-fighting liquid in the accommodating cavity.
[0013] In an embodiment, the medium connecting pipe further comprises a control valve connected to the first main pipe, and the control valve is used to control the on-off of the first main pipe.
[0014] The utility model also proposes a battery swap station, including at least one battery rack, the lower part of battery rack is equipped with fire control space, the fire control space is used for setting above mentioned battery swap station fire control box.
[0015] In an embodiment, further comprising a guide rail, one end of the guide rail is arranged in the fire control space, and the other end extends out of the fire control space, the box is movably arranged on the guide rail and can move along the guide rail.
[0016] The utility model has the advantages of:
[0017] By setting the adjusting mechanism, the temperature of the fire-fighting liquid in the accommodating cavity can be adjusted to ensure that the temperature of the fire-fighting liquid is not too low to freeze, and when the temperature of the fire-fighting liquid is too low, the main body can heat the fire-fighting liquid to prevent the fire-fighting liquid from freezing; by configuring the medium connecting pipe to separate the main body from the heat medium source, when the box containing the thermal runaway battery needs to be removed from the station, the medium connecting pipe can disconnect the main body from the heat medium source to avoid the fixation of the box and the heat medium source affecting the fire-fighting efficiency, and the overall structure is simple, which is beneficial to improving the fire-fighting reliability of the fire-fighting box. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.
[0019] Figure 1 Structure diagram of the box and the battery rack of an embodiment of the utility model;
[0020] Figure 2 Principle diagram of the box and the adjusting mechanism of an embodiment of the utility model;
[0021] Figure 3 Structure diagram of the adjusting mechanism of an embodiment of the utility model;
[0022] Figure 4 Working principle diagram of an embodiment of the utility model.
[0023] In the drawing:
[0024] 101-battery rack; 102-fire fighting space; 103-thermal runaway battery; 104-guide rail;
[0025] 10-box; 11-containing cavity; 12-function cavity; 13-detecting piece;
[0026] 20-adjusting mechanism; 21-main body; 211-medium inlet pipe; 212-medium outlet pipe; 22-medium connecting pipe; 221-first main pipe; 222-second main pipe; 223-connection piece; 224-fixing piece; 225-control valve;
[0027] 30-heat carrier medium source. DETAILED DESCRIPTION
[0028] The specific embodiments of the utility model will be described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the description of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0029] Unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, can be electrically connected, can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0030] The terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model product is usually placed, and are only for the convenience of description and simplification of the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0031] The terms "first", "second", "third" and the like are merely for distinguishing similar attributes, and do not indicate or imply relative importance or a particular order.
[0032] The terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, in addition to including the listed elements, other elements not explicitly listed can also be included.
[0033] Since a large number of batteries are stored in the battery swap station, during the storage or charging of the batteries in the battery swap station, the problem of battery thermal runaway cannot be avoided, if the thermal runaway battery is not timely treated by fire fighting, it is easy to cause fire or explosion, and affect the safety of the entire battery swap station, therefore, a fire fighting box is usually arranged in the station to treat the thermal runaway battery by fire fighting, so as to avoid the influence of thermal runaway from being enlarged.
[0034] Since water is low in price, large in specific heat capacity, and relatively easy to obtain, water is usually added as a fire fighting liquid in the fire fighting box, but in a cold environment, the water stored in the fire fighting box is easy to freeze, which causes the fire fighting function of the fire fighting box to fail.
[0035] As shown in Figure 1 The fire fighting box for the battery swap station is arranged at the battery rack 101 in the battery swap station, more specifically, the battery rack 101 is used for storing batteries, and / or cooperating with the charging unit of the battery swap station to charge the stored batteries, the lower part of the battery rack 101 is provided with a fire fighting space 102, the box body 10 is arranged in the fire fighting space 102, when the thermal runaway battery 103 occurs, the thermal runaway battery 103 can be sent to the box body 10 through the battery transfer equipment in the station, and the box body 10 is transferred out of the fire fighting space 102, so as to be treated by fire fighting.
[0036] In combination with Figure 1 And Figure 2 The fire fighting box for the battery swap station provided by the utility model comprises:
[0037] The box body 10 comprises a containing cavity 11, the containing cavity 11 is provided with a fire fighting liquid, the box body 10 is used for containing the thermal runaway battery 103, the fire fighting liquid can soak the thermal runaway battery 103, so as to treat the thermal runaway battery 103 by fire fighting,
[0038] and a regulating mechanism 20, including a main body 21 and a medium connecting pipe 22, the main body 21 is arranged inside or outside the accommodating cavity 11, for heat exchange with the fire-fighting liquid in the accommodating cavity 11 to regulate the temperature of the fire-fighting liquid, the medium connecting pipe 22 is used to connect the heat carrier medium source 30 to enable the heat carrier medium to flow in the main body 21, and the medium connecting pipe 22 is configured to enable the main body 21 to be separated from the heat carrier medium source 30.
[0039] By arranging the regulating mechanism 20, the temperature of the fire-fighting liquid in the accommodating cavity 11 can be regulated to ensure that the temperature of the fire-fighting liquid is not too low to freeze. When the temperature of the fire-fighting liquid is too low, the main body 21 can heat the fire-fighting liquid through heat exchange with the fire-fighting liquid to prevent the fire-fighting liquid from freezing. By configuring the medium connecting pipe 22 to enable the main body 21 to be separated from the heat carrier medium source 30, when it is necessary to transport the box 10 containing the thermal runaway battery 103 out of the station, the medium connecting pipe 22 can disconnect the main body 21 from the heat carrier medium source 30 to prevent the box 10 from being fixed with the heat carrier medium source 30 and affecting the fire-fighting efficiency. The overall structure is simple, which is conducive to improving the fire-fighting reliability of the fire-fighting box.
[0040] Exemplarily, the fire-fighting liquid in the accommodating cavity 11 is water or other fire-fighting mixed liquid that has the risk of freezing in a low-temperature environment.
[0041] Exemplarily, the main body 21 is a coil pipe, which is laid on the bottom surface or side surface of the accommodating cavity 11, or is arranged outside the accommodating cavity 11.
[0042] Exemplarily, the heat carrier medium is a liquid medium, or a gaseous medium.
[0043] In an example scheme, the main body 21 is arranged inside the accommodating cavity 11 to directly contact the fire-fighting liquid. The heat carrier medium flowing in the main body 21 can exchange heat with the fire-fighting liquid to heat the fire-fighting liquid and keep the temperature of the fire-fighting liquid above the freezing temperature, with high heating efficiency.
[0044] In another example scheme, the main body 21 is arranged outside the accommodating cavity 11, more specifically, the main body 21 can be arranged on the outer wall of the box 10 to exchange heat with the fire-fighting liquid in the accommodating cavity 11 through the outer wall of the box 10. In this example, by arranging the main body 21 on the outer wall of the box 10, it is convenient to arrange the main body 21 and the medium connecting pipe 22, and it is convenient to overhaul and maintain the main body 21. Preferably, the main body 21 is arranged on the side wall of the box 10.
[0045] In yet another example scheme, as shown in FIG. 2, the main body 21 is arranged outside the accommodating cavity 11, and the medium connecting pipe 22 is arranged on the outer wall of the box 10. Figure 2As shown, the box 10 further comprises a functional cavity 12, which is arranged adjacent to the containing cavity 11, and the main body 21 is arranged in the functional cavity 12, and the main body 21 can heat the fire-fighting liquid through the cavity wall of the functional cavity 12 and the containing cavity 11. In this example, by arranging the main body 21 separately from the containing cavity 11, the heating efficiency can be ensured, and the leakage of the heat-carrying medium in the main body 21 can be avoided to affect the fire-fighting liquid.
[0046] Exemplarily, the functional cavity 12 is arranged at the bottom of the containing cavity 11, and the functional cavity 12 can also be arranged at the side of the containing cavity 11.
[0047] In an example scheme, as shown in the figure, Figure 3 The medium connecting pipe 22 comprises a first main pipe 221, a second main pipe 222 and a connecting piece 223, one end of the first main pipe 221 and the second main pipe 222 is connected to the heat-carrying medium source 30, and the other end is connected to the connecting piece 223, the main body 21 comprises a medium inlet pipe 211 and a medium outlet pipe 212, and the medium inlet pipe 211 and the medium outlet pipe 212 are detachably connected to the connecting piece 223.
[0048] More specifically, the heat-carrying medium in the heat-carrying medium source 30 can enter the main body 21 through the first main pipe 221 and the medium inlet pipe 211, and return to the heat-carrying medium source 30 through the medium outlet pipe 212 and the second main pipe 222 to form a circulation.
[0049] When the thermal runaway battery 103 enters the containing cavity 11, and the box 10 needs to be transported out of the fire-fighting space 102, the medium connecting pipe 22 is subjected to the pulling force when the box 10 is transported, the medium inlet pipe 211 and the medium outlet pipe 212 are disconnected from the connecting piece 223, and the main body 21 is disconnected from the heat-carrying medium source 30, so that the box 10 can be transported out in time without manual operation, and the safety of fire-fighting treatment is improved.
[0050] Exemplarily, the medium inlet pipe 211 and the medium outlet pipe 212 adopt a flexible pipe at one end close to the connecting piece 223, which is convenient to connect to the connecting piece 223 and easy to separate from the connecting piece 223 when subjected to external force.
[0051] In this example, during the process of transporting the box 10 out of the fire-fighting space 102, if the main body 21 exchanges heat with the fire-fighting liquid through liquid heat-carrying medium, when the medium inlet pipe 211 and the medium outlet pipe 212 are disconnected from the connecting piece 223, the heat-carrying medium in the main body 21 will flow out through the medium inlet pipe 211 and the medium outlet pipe 212, and human power is needed to arrange and clean, so in this scheme, gaseous heat-carrying medium is preferably selected.
[0052] In another example scheme, the medium connecting pipe 22 comprises a first main pipe 221, a second main pipe 222, and a connecting piece 223, the connecting piece 223 comprises a first self-sealing plug and a second self-sealing plug which are detachably connected, one end of the first main pipe 221 and the second main pipe 222 is connected to the heat medium source 30, and the other end is connected to the first self-sealing plug, the main body 21 comprises a medium inlet pipe 211 and a medium outlet pipe 212, and the medium inlet pipe 211 and the medium outlet pipe 212 are connected to the second self-sealing plug.
[0053] When the thermal runaway battery 103 enters the containing cavity 11, and the box 10 needs to be transported out of the fire-fighting space 102, the connecting piece 223 is subjected to a pulling force when the box 10 is transported, the first self-sealing plug and the second self-sealing plug are disconnected, the first self-sealing plug can seal the first main pipe 221 and the second main pipe 222, the second self-sealing plug can seal the medium inlet pipe 211 and the medium outlet pipe 212, and the leakage of the heat medium in the main body 21 can be effectively avoided, and the overall safety and convenience are improved.
[0054] Exemplarily, the first main pipe 221 and the second main pipe 222, the medium inlet pipe 211 and the medium outlet pipe 212 adopt a hose at one end close to the connecting piece 223, which is convenient for connection with the connecting piece 223 and easy to separate the first self-sealing plug and the second self-sealing plug when subjected to an external force.
[0055] In an example scheme, in combination with Figure 1 and Figure 3 , the medium connecting pipe 22 further comprises a fixing piece 224, one end of the fixing piece 224 is connected to the connecting piece 223, and the other end is connected to the battery rack 101 above the box 10, and the fixing piece 224 is used to support the connecting piece 223.
[0056] When the box 10 is transported, the medium connecting pipe 22 is subjected to a pulling force, and the fixing piece 224 cooperates with the box 10 to make the main body 21 easy to separate from the connecting piece 223, or to make the first self-sealing plug and the second self-sealing plug easy to separate.
[0057] Exemplarily, as shown in Figure 1 , the battery rack 101 is provided with a fixing point cooperating with the fixing piece 224, so as to fix the fixing piece 224 on the fixing point. The fixing piece 224 can adopt a bandage, a hook, etc., and the fixing point can adopt a bolt, so as to adjust the position according to the needs.
[0058] In an example scheme, the medium inlet pipe 211 and the medium outlet pipe 212 are configured to extend in the up-down direction, so as to extend from the bottom of the containing cavity 11 and pass through the top of the box 10.
[0059] Exemplarily, the upper end of the box 10 is provided with a cover plate, and the cover plate is provided with a through hole, and the medium inlet pipe 211 and the medium outlet pipe 212 are arranged in the through hole and fixed in the through hole.
[0060] In an example, when the box 10 comprises the functional cavity 12 and the main body 21 is arranged in the functional cavity 12, a pipe hole is arranged on the cavity wall of the functional cavity 12, and the medium inlet pipe 211 and the medium outlet pipe 212 pass through the pipe hole and extend along the up-down direction through the outer wall of the box 10. In this example, the main body 21 is arranged in the functional cavity 12, so that the leakage of the heat-carrying medium in the main body 21 does not affect the fire-fighting quality of the fire-fighting liquid.
[0061] In an example, as shown in Figure 2 , the accommodating cavity 11 is provided with a detection member 13, and the detection member 13 is used to detect the temperature of the fire-fighting liquid in the accommodating cavity 11. When the detection member 13 detects that the temperature of the fire-fighting liquid is lower than or equal to a preset temperature T, the heat-carrying medium in the main body 21 flows, so as to heat the fire-fighting liquid. Exemplarily, the preset temperature T is greater than or equal to the freezing temperature of the fire-fighting liquid.
[0062] Exemplarily, the detection member 13 is a temperature sensor.
[0063] Exemplarily, the detection member 13 can be provided with an independent power supply, so as to avoid the influence of wiring on the subsequent transfer of the box 10.
[0064] In an example, the heat-carrying medium source 30 is a cooling unit in the battery swap station, so that the box 10 can be centrally managed by the overall control in the station, and the heat-carrying medium source 30 does not need to be additionally arranged, and the box 10 only needs to be connected with the cooling unit through the medium connecting pipe 22. In another example, an additional medium storage mechanism is arranged in the battery swap station, so as to provide the heat-carrying medium for the main body 21.
[0065] Exemplarily, the heat of the heat-carrying medium can come from the heat of the cooling unit, or can come from solar energy, heat generated in the working process of a charging unit in the station, etc.
[0066] In an example, in combination with Figure 2 and Figure 3 , the medium connecting pipe 22 further comprises a control valve 225 connected to the first main pipe 221, and the control valve 225 is used to control the on-off of the first main pipe 221, so as to control whether the heat-carrying medium flows to the main body 21.
[0067] Exemplarily, the control valve 225 is an electromagnetic water valve.
[0068] Based on the above fire-fighting box for the battery swap station, referring to Figure 1The utility model also proposes a battery swap station, including at least one battery rack 101, battery rack 101 is used to deposit battery, and / or is used to cooperate charger unit and deposits battery and carries out charging, and the lower part of battery rack 101 is equipped with fire control space 102, the fire control box for battery swap station of above-mentioned is located in fire control space 102.
[0069] As Figure 1 The battery swap station further includes a guide rail 104, one end of the guide rail 104 is located in the fire control space 102, and the other end extends out of the fire control space 102, the box body 10 is movably installed on the guide rail 104, and can move along the guide rail 104, so as to facilitate the box body 10 to be transported out of the fire control space 102 through the guide rail 104.
[0070] As Figure 4 The utility model discloses a working principle of the fire control box for the battery swap station is as follows:
[0071] When the temperature of the fire control liquid in the containing cavity 11 detected by the detection piece 13 is lower than or equal to the preset temperature T, the control valve 225 is opened, the heat carrier medium in the heat carrier medium source 30 flows into the inside of the main body 21 to exchange heat with the fire control liquid, and the fire control liquid is heated;
[0072] When the temperature of the fire control liquid in the containing cavity 11 detected by the detection piece 13 is higher than the preset temperature T, or higher than or equal to the set temperature (for example, T+3), the control valve 225 is closed, and no new heat carrier medium flows into the main body 21, and the heating of the fire control liquid is stopped.
[0073] When the thermal runaway battery 103 appears in the battery swap station, the thermal runaway battery 103 is transferred to the battery bracket (which is prior art) on the upper part of the box body 10 through the battery transfer equipment in the station, the battery bracket and the thermal runaway battery 103 fall into the containing cavity 11, and the fire control liquid can preliminarily handle the thermal runaway battery 103, then, the box body 10 is transported out of the fire control space 102 and transported to the outside of the station, so as to facilitate subsequent fire control processing, and the spread of fire can be effectively avoided.
[0074] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A fire-fighting box for a battery swapping station, characterized in that, include: The housing (10) includes a receiving cavity (11) containing fire-fighting fluid, and the housing (10) is used to house the thermal runaway battery (103). The regulating mechanism (20) includes a main body (21) and a medium connecting pipe (22). The main body (21) is located inside or outside the accommodating cavity (11) for heat exchange with the fire-fighting liquid in the accommodating cavity (11). The medium connecting pipe (22) is used to connect to the heat transfer medium source (30) so that the heat transfer medium can flow inside the main body (21). The medium connecting pipe (22) is configured to separate the main body (21) from the heat transfer medium source (30).
2. The fire-fighting box for a battery swapping station according to claim 1, characterized in that, The housing (10) also includes a functional cavity (12), which is arranged adjacent to the receiving cavity (11), and the main body (21) is located in the functional cavity (12).
3. The fire-fighting box for a battery swapping station according to claim 1, characterized in that, The main body (21) includes a medium inlet pipe (211) and a medium outlet pipe (212). The medium connecting pipe (22) includes a first main pipe (221), a second main pipe (222), and a connector (223). One end of the first main pipe (221) and the second main pipe (222) are connected to the heat transfer medium source (30), and the other end is connected to the connector (223). The medium inlet pipe (211) and the medium outlet pipe (212) are detachably connected to the connector (223).
4. The fire-fighting box for a battery swapping station according to claim 2, characterized in that, The main body (21) includes a medium inlet pipe (211) and a medium outlet pipe (212). The medium connecting pipe (22) includes a first main pipe (221), a second main pipe (222), and a connector (223). The connector (223) includes a first self-sealing plug and a second self-sealing plug that can be detachably connected. One end of the first main pipe (221) and the second main pipe (222) are connected to the heat transfer medium source (30), and the other end is connected to the first self-sealing plug. The medium inlet pipe (211) and the medium outlet pipe (212) are connected to the second self-sealing plug.
5. The fire-fighting box for a battery swapping station according to claim 3 or 4, characterized in that, The medium connecting pipe (22) includes a fixing member (224), one end of which is connected to the connecting member (223), and the other end is connected to the battery rack (101) above the housing (10).
6. The fire-fighting box for a battery swapping station according to claim 1, characterized in that, The cavity (11) is provided with a detection element (13), which is used to detect the temperature of the fire-fighting fluid in the cavity (11).
7. The fire-fighting box for a battery swapping station according to claim 3 or 4, characterized in that, The medium connecting pipe (22) also includes a control valve (225), which is connected to the first main pipe (221) and is used to control the opening and closing of the first main pipe (221).
8. A battery swapping station, characterized in that, It includes at least one battery rack (101), the lower part of which is provided with a fire-fighting space (102), the fire-fighting space (102) being used to install the fire-fighting box for the battery swapping station as described in any one of claims 1 to 7.
9. The battery swapping station according to claim 8, characterized in that, It also includes a guide rail (104), one end of which is located inside the fire-fighting space (102) and the other end extends outside the fire-fighting space (102). The box (10) is movably mounted on the guide rail (104) and can move along the guide rail (104).