Energy storage container

Abstract

The utility model discloses an energy storage container, and belongs to the technical field of energy storage systems. The energy storage container comprises a container body and an air conditioner located outside the container body, a battery cabin, an energy storage inverter cabin, an isolation transformer cabin, a power distribution cabin and an auxiliary system cabin are arranged in the container body, partition plates are arranged between the adjacent cabins, and the battery cabin, the power distribution cabin and the auxiliary system cabin dissipate heat through the air conditioner. The energy storage inverter cabin and the isolation transformer cabin are respectively provided with an independent heat dissipation device. Brands and capacities of the energy storage battery module and the energy storage inverter can be selected according to needs; all the cabins are independently designed and do not interfere with one another. The scheme has the advantages of being easy to expand, high in safety and good in heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage systems, in particular to an energy storage container. Background Art

[0002] At present, most large-scale energy storage systems on the market use standard containers as carriers, which integrate and design isolation transformers, energy storage inverters, energy storage batteries, fire protection systems, battery management systems, energy management systems, auxiliary power cabins, and heat dissipation systems. Reasonable layout and heat dissipation are required between the systems to ensure the long-term and reliable operation of the functions of each system.

[0003] However, the large-scale energy storage systems on the market generally have problems such as difficult expansion of the capacity of energy storage batteries and inverters, low safety, and poor heat dissipation effect. Summary of the Utility Model

[0004] The utility model provides an energy storage container for solving the above problems in the background art.

[0005] The energy storage container provided by the utility model includes a box body and an air conditioner located outside the box body; a battery compartment, an energy storage inverter compartment, an isolation transformer compartment, a power distribution compartment, and an auxiliary system compartment are arranged in the box body;

[0006] The air conditioner is arranged on the left side of the outer edge of the box body along the length direction of the box body;

[0007] The battery compartment is arranged at the leftmost side of the box body along the length direction of the box body; a main air duct communicated with the air outlet of the air conditioner is arranged above the battery compartment; at least one group of battery racks is arranged in the battery compartment, and energy storage battery modules are arranged on the battery racks;

[0008] The energy storage inverter compartment and the isolation transformer compartment are arranged opposite to each other along the length direction of the box body on the right side of the battery compartment; a system air duct is arranged between the energy storage inverter compartment and the isolation transformer compartment; an energy storage inverter device is arranged in the energy storage inverter compartment; an isolation transformer device and an isolation transformer heat dissipation device are arranged in the isolation transformer compartment from bottom to top in sequence;

[0009] The power distribution compartment is arranged horizontally on the right side of the energy storage inverter compartment and the isolation transformer compartment along the width direction of the box body; a secondary power supply compartment and an energy storage inverter heat dissipation device are arranged in the power distribution compartment; the secondary power supply compartment is arranged at the upper right position in the power distribution compartment, and the energy storage inverter heat dissipation device is arranged on the left side of the secondary power supply compartment; a secondary power supply device is arranged in the secondary power supply compartment;

[0010] The auxiliary system compartment is arranged above the isolation transformer compartment; a battery management system and an energy management system are arranged in the auxiliary system compartment;

[0011] Partition boards are provided between adjacent cabins;

[0012] The energy storage battery module is connected to the energy storage inverter device at the bottom of the box body through a cable; the energy storage inverter device is connected to the isolation transformer device at the bottom of the box body through a cable;

[0013] Auxiliary air ducts communicating with the main air duct are provided in both the auxiliary power source cabin and the auxiliary system cabin.

[0014] Preferably, the energy storage container is a 20-foot standard container.

[0015] Preferably, a first door is provided outside the energy storage inverter cabin, and a first louver is provided on the first door; the energy storage inverter heat dissipation device is a plurality of axial flow fans arranged vertically, a second door is provided outside the axial flow fans, and a second louver is provided on the second door.

[0016] Preferably, a third door is provided outside the isolation transformer cabin, and a third louver is provided on the third door; the isolation transformer heat dissipation device is a centrifugal fan, a fourth door is provided below the auxiliary power source cabin, and a fourth louver and a fifth louver are sequentially arranged on the fourth door from bottom to top.

[0017] Preferably, the battery cabin, the power distribution cabin, and the auxiliary system cabin are all communicated with the air return opening of the air conditioner.

[0018] Preferably, a firewall is provided on the side of the energy storage inverter cabin, the isolation transformer cabin adjacent to the battery cabin.

[0019] Preferably, a combustible gas intake fan is further provided on the outer surface of the box body where the air conditioner is located, a combustible gas exhaust fan is provided above the door of the battery cabin, and an H2 detector is further provided on the top inside the box body.

[0020] Preferably, a water fire fighting joint is further provided on the outer surface of the box body where the air conditioner is located, and a water fire fighting sprinkler is further provided on the top inside the box body.

[0021] Preferably, an audible and visual alarm, a fire alarm bell, an emergency stop button, a disable switch, and a manual release switch are further provided in the power distribution cabin.

[0022] Preferably, a fire controller and a fire fighting gas cylinder are further provided in the auxiliary system cabin, and a gas fire fighting sprinkler, a point type smoke fire detector, a point type heat fire detector, and a lithium ion detector are further provided on the top inside the box body.

[0023] The energy storage container provided by the utility model comprises a box body and an air conditioner located outside the box body. A battery compartment, an energy storage inverter compartment, an isolation transformer compartment, a power distribution compartment and an auxiliary system compartment are arranged inside the box body. Partition boards are arranged between adjacent compartments. The battery compartment, the power distribution compartment and the auxiliary system compartment are cooled by the air conditioner. Separate heat dissipation devices are arranged in the energy storage inverter compartment and the isolation transformer compartment. The brands and capacities of the energy storage battery modules and the energy storage inverters can be selected according to needs. Each compartment is independently designed without interference from each other. This solution has the advantages of being easy to expand, having high safety and good heat dissipation effect. Description of the Drawings

[0024] Figure 1 It is a front internal view of the energy storage container provided by an embodiment of the utility model.

[0025] Figure 2 It is a rear internal view of the energy storage container provided by an embodiment of the utility model.

[0026] Figure 3 It is a top view of the energy storage container provided by an embodiment of the utility model along the Figure 1 plane of T1-T1 in the figure.

[0027] Figure 4 It is a left internal view of the energy storage container provided by an embodiment of the utility model.

[0028] Figure 5 It is a right internal view of the energy storage container provided by an embodiment of the utility model.

[0029] Figure 6 It is a front external view of the energy storage container provided by an embodiment of the utility model.

[0030] Figure 7 It is a rear external view of the energy storage container provided by an embodiment of the utility model.

[0031] Figure 8 It is a right external view of the energy storage container provided by an embodiment of the utility model.

[0032] Figure 9 It is an attached external view of the energy storage container provided by an embodiment of the utility model.

[0033] Figure 10 It is an attached view of the energy storage container provided by an embodiment of the utility model along the Figure 1 plane of T2-T2 in the figure.

[0034] Figure 11 It is a right external view of the fire protection system of the energy storage container provided by an embodiment of the utility model.

[0035] In the drawings:

[0036] 100. Box body;

[0037] 110, Battery compartment; 111, Battery rack; 112, Energy storage battery module;

[0038] 120, Energy storage inverter compartment; 121, Energy storage inverter device;

[0039] 130, Isolation transformer compartment; 131, Isolation transformer device; 132, Isolation transformer heat dissipation device;

[0040] 140, Power distribution compartment; 141, Auxiliary power source compartment; 142, Energy storage inverter heat dissipation device;

[0041] 150, Auxiliary system compartment; 151, Battery management system and energy management system;

[0042] 160, System air duct;

[0043] 170, First door body; 1701, First louver; 171, Second door body; 1711, Second louver; 172, Third door body; 1721, Third louver; 173, Fourth door body; 1731, Fourth louver; 1732, Fifth louver;

[0044] 1801, Firewall; 1802, Combustible gas inlet fan; 1803, Water fire fighting joint; 1804, Water fire fighting sprinkler; 1805, Acoustic and optical alarm; 1806, Fire alarm bell; 1807, Emergency stop button; 1808, Disable switch; 1809, Manual release switch; 1810, Fire controller; 1811, Fire fighting gas cylinder; 1812, Gas fire fighting sprinkler; 1813, Point - type smoke fire detector; 1814, Point - type heat fire detector; 1815, Lithium - ion detector; 1816, Combustible gas exhaust fan;

[0045] 200, Air conditioner. Detailed implementation manners

[0046] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the detailed implementation manners of the present utility model will now be described in detail with reference to the accompanying drawings.

[0047] As Figure 1-11 shown, an embodiment of the present utility model provides an energy storage container, including a box body 100 and an air conditioner 200 located outside the box body; a battery compartment 110, an energy storage inverter compartment 120, an isolation transformer compartment 130, a power distribution compartment 140, and an auxiliary system compartment 150 are arranged inside the box body.

[0048] In the embodiment of the present utility model, for the convenience of transportation, the energy storage container is a 20-foot standard container, the length of the box body is 6058 mm, the width is 2438 mm, and the height is 2896 mm.

[0049] The air conditioner 200 is arranged on the left side of the outer edge of the box body 100 along the length direction of the box body 100.

[0050] The battery compartment 110 is arranged at the leftmost side inside the box body 100 along the length direction of the box body 100, and there is a space between the battery compartment 110 and the air conditioner 200 through the outer shell of the box body 100; a main air duct communicating with the air outlet of the air conditioner 200 is arranged above the battery compartment 110; at least one group of battery racks 111 are arranged in the battery compartment 110, and energy storage battery modules 112 are arranged on the battery racks 111. The present utility model does not limit the specific details of the battery racks 111 and the energy storage battery modules 112, and the structure of the battery racks 111, the brand and capacity of the energy storage battery modules 112 can be selected according to needs. The energy storage battery modules 112 are the places where the heat is most concentrated in the energy storage container, and the heat dissipation of the energy storage battery modules 112 is particularly important. In the embodiment of the present utility model, the battery compartment 110 is dissipated by hanging the air conditioner 200 on the side of the box body 100. During transportation, only the box body 100 can be transported, and the air conditioner 200 can be installed on the outside of the box body 100 during installation.

[0051] Two groups of opposite-opening door bodies are arranged on both sides of the battery compartment 110 along the length direction of the box body 100, which is convenient for the installation, replacement and maintenance of the battery racks 111 and the energy storage battery modules 112.

[0052] The energy storage inverter compartment 120 and the isolation transformer compartment 130 are arranged opposite to each other along the length direction of the box body 100 on the right side of the battery compartment 110; a system air duct 160 is arranged between the energy storage inverter compartment 120 and the isolation transformer compartment 130; an energy storage inverter device 121 is arranged in the energy storage inverter compartment 120. In the embodiment of the present utility model, an inverter rack is arranged in the energy storage inverter compartment 120, and the energy storage inverter device 121 is arranged on the inverter rack. The present utility model does not particularly limit the structure of the inverter rack and the number of inverter devices. In practical applications, the corresponding energy storage inverter device 121 can be selected according to the brand and capacity of the energy storage battery modules 112.

[0053] An isolation transformer device 131 and an isolation transformer heat dissipation device 132 are sequentially arranged from bottom to top in the isolation transformer compartment 130.

[0054] Such as Figure 5As shown, in some embodiments of the present utility model, the power distribution cabin 140 is horizontally arranged along the width direction of the box body 100 on the right side of the energy storage inverter cabin 120 and the isolation transformer cabin 130; a secondary power source cabin 141 and an energy storage inverter heat dissipation device 142 are arranged in the power distribution cabin 140; the secondary power source cabin 141 is arranged at the upper right position in the power distribution cabin 140, and the energy storage inverter heat dissipation device 142 is arranged on the left side of the secondary power source cabin 141. A door body is provided outside the secondary power source cabin.

[0055] The auxiliary system cabin 150 is arranged above the isolation transformer cabin 130; a battery management system and an energy management system 151 are arranged in the auxiliary system cabin 150. In practical applications, the modules in the auxiliary system cabin 150 can be increased or decreased according to needs. A door body is provided outside the auxiliary system cabin.

[0056] In the embodiments of the present utility model, partitions are arranged between adjacent cabins, and the spaces in each cabin are independent and do not interfere with each other, and each cabin can be independently designed for heat dissipation.

[0057] The energy storage battery module 112 and the energy storage inverter device 121 are connected by a cable at the bottom of the box body 100; the energy storage inverter device 121 and the isolation transformer device 131 are connected by a cable at the bottom of the box body 100.

[0058] Secondary air ducts communicating with the main air duct are arranged in both the secondary power source cabin 141 and the auxiliary system cabin 150, so that the cold air of the air conditioner 200 can cover the secondary power source cabin 141 and the auxiliary system cabin 150, and is used for dissipating heat from the devices in the secondary power source cabin 141 and the auxiliary system cabin 150.

[0059] In the embodiments of the present utility model, a separate heat dissipation design is carried out for the energy storage inverter cabin 120. The energy storage inverter device 121 is arranged in the energy storage inverter cabin 120. The heat in the energy storage inverter cabin 120 mainly comes from the power modules in the energy storage inverter device 121. The energy storage inverter heat dissipation device 142 is arranged in the power distribution cabin 140 on the side of the energy storage inverter cabin 120. As Figure 6 shown, a first door body 170 is provided outside the energy storage inverter cabin 120, and a first louver 1701 is arranged on the first door body 170. As Figure 8 、 Figure 11 shown, the energy storage inverter heat dissipation device 142 is a plurality of axial flow fans arranged vertically. A second door body 171 is provided outside the axial flow fans, and a second louver 1711 is arranged on the second door body 171. As Figure 5As shown, the energy storage inverter heat dissipation device 142 is five axial fans arranged vertically. Cold air enters the energy storage inverter compartment 120 from the first louver 1701 on the front of the energy storage inverter compartment 120 to cool the energy storage inverter device 121 inside the energy storage inverter compartment 120. The axial fans on the side of the energy storage inverter compartment 120 pass through the system air duct 160 between the energy storage inverter compartment 120 and the isolation transformer compartment 130, suck out the hot air in the energy storage inverter compartment 120, and discharge it from the second louver 1711.

[0060] In the embodiment of the present invention, a separate heat dissipation design is also carried out for the isolation transformer compartment 130. An isolation transformer device 131 and an isolation transformer heat dissipation device 132 are arranged in the isolation transformer compartment 130 from bottom to top. The heat in the isolation transformer compartment 130 mainly comes from the wire package in the isolation transformer device 131. As Figure 7 shown, a third door body 172 is provided outside the isolation transformer compartment 130, and a third louver 1721 is arranged on the third door body 172. The isolation transformer heat dissipation device 132 is a centrifugal fan. As Figure 8 、 Figure 11 shown, a fourth door body 173 is provided below the auxiliary power source compartment 141, and a fourth louver 1731 and a fifth louver 1732 are arranged on the fourth door body 173 from bottom to top in sequence. Cold air enters the isolation transformer compartment 130 from the third louver 1721 and the fourth louver 1731 to cool the isolation transformer device 131 in the isolation transformer compartment 130, and the centrifugal fan sucks out the hot air in the isolation transformer compartment 130 and discharges it from the fifth louver 1732.

[0061] It should be noted that only the positions of the louvers are simply marked in the figure. In actual application, the styles of the louvers can be designed according to needs.

[0062] In the embodiment of the present invention, the battery compartment 110, the auxiliary power source compartment 141, and the auxiliary system compartment 150 are all cooled by the air conditioner 200. A main air duct communicating with the cold air outlet of the air conditioner 200 is arranged in the battery compartment 110, and auxiliary air ducts communicating with the main air duct are arranged in the auxiliary power source compartment 141 and the auxiliary system compartment 150 respectively. In addition, the battery compartment 110, the auxiliary power source compartment 141, and the auxiliary system compartment 150 are all communicated with the return air outlet of the air conditioner 200; the door bodies outside the battery compartment 110, the auxiliary power source compartment 141, and the auxiliary system compartment 150 are all sealed door bodies. The cold air coming out of the cold air outlet of the air conditioner 200 is evenly distributed to the battery compartment 110, the auxiliary power source compartment 141, and the auxiliary system compartment 150 through the main air duct to cool devices such as the energy storage battery module 112 and the auxiliary power supply device, and then the air conditioner 200 sucks the hot air in each compartment through the return air outlet.

[0063] Since energy storage systems usually contain a large number of batteries, once a failure or thermal runaway occurs, it may trigger serious accidents such as fires or explosions. Therefore, fire safety is crucial for energy storage containers. As Figure 2 、 Figure 4 、 Figure 10 、 Figure 11 shown, the fire protection system of the present utility model is designed as follows:

[0064] (1) In the embodiments of the present utility model, a firewall 1801 is provided on the side of the energy storage inverter compartment 120 and the isolation transformer compartment 130 adjacent to the battery compartment 110. In some embodiments of the embodiments of the present utility model, the thickness of the firewall 1801 is 50 mm. A wire passing hole between the battery compartment 110 and the energy storage inverter compartment 120 is provided at the bottom of the firewall 1801. Wires pass through the wire passing hole to connect the energy storage battery module and the energy storage inverter device. After the connection, the wire passing hole is sealed with fireproof putty. The design of the firewall 1801 further improves safety. When a fire occurs in the battery compartment 110, it can protect the inverter compartment 120, the isolation transformer compartment 130, and the auxiliary system compartment 150.

[0065] (2) In some embodiments of the present utility model, a combustible gas intake fan 1802 is further provided on the outer surface of the box body 100 where the air conditioner 200 is located, a combustible gas exhaust fan 1816 is provided on the upper side of the door of the battery compartment 110, and an H2 detector is further provided on the inner top of the box body 100. As Figure 6 shown, in some embodiments of the present utility model, the combustible gas exhaust fan 1816 is provided at the upper side position of the door of the battery compartment 110 close to the energy storage inverter compartment 120. Through the H2 detector, when it detects that there is H2 in the battery compartment and the H2 concentration reaches the set threshold, the combustible gas intake fan 1802 and the combustible gas exhaust fan 1816 can be turned on to discharge the combustible gas in the container and prevent the box body from exploding.

[0066] (3) In some embodiments of the present utility model, a water fire protection joint 1803 is further provided on the outer surface of the box body 100 where the air conditioner 200 is located, and a water fire protection sprinkler 1804 is further provided on the inner top of the box body 100. The water fire protection device can be used as a supplement to the gas fire protection. After the gas in the fire protection gas tank is used up, it can be manually extinguished through the water fire protection device.

[0067] (4) In some embodiments of the present utility model, an audible and visual alarm 1805, a fire alarm bell 1806, an emergency stop button 1807, a disable switch 1808, and a manual release switch 1809 are further provided in the power distribution compartment 140.

[0068] (5) In the embodiment of the present utility model, a fire controller 1810 and a fire fighting gas tank 1811 are further arranged in the auxiliary system cabin 150, and a gas fire sprinkler 1812, a point type smoke fire detector 1813, a point type heat fire detector 1814, and a lithium ion detector 1815 are further arranged at the inner top of the box body 100.

[0069] The positions of the above-mentioned fire fighting components are reasonably arranged, effectively reducing the risk of large-scale fires and minimizing losses in the event of a fire. In practical applications, the components of the fire fighting system can be increased or decreased according to needs.

[0070] The present utility model has the following beneficial effects: The energy storage container provided by the present utility model includes a box body and an air conditioner located outside the box body. A battery cabin, an energy storage inverter cabin, an isolation transformer cabin, a power distribution cabin, and an auxiliary system cabin are arranged in the box body. Partition boards are arranged between adjacent cabins. The battery cabin, the power distribution cabin, and the auxiliary system cabin are cooled by the air conditioner, and separate heat dissipation devices are arranged in the energy storage inverter cabin and the isolation transformer cabin; the brands and capacities of the energy storage battery modules and the energy storage inverters can be selected according to needs; the cabins are independently designed and do not interfere with each other. This solution has the advantages of being easy to expand, having high safety, and good heat dissipation effect. The energy storage container of this solution adopts the 20-foot standard container size, which is convenient for sea and land transportation. The energy storage container of this solution also integrates a complete fire fighting system, further improving safety.

[0071] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can make many forms of deformation without departing from the purpose of the present utility model and the scope protected by the claims. All of these are within the protection scope of the present utility model.

Claims

1. A energy storage container, characterized in that, It includes a box body (100) and an air conditioner (200) located outside the box body; a battery compartment (110), an energy storage inverter compartment (120), an isolation transformer compartment (130), a power distribution compartment (140), and an auxiliary system compartment (150) are arranged inside the box body; The air conditioner (200) is arranged on the left side of the outer edge of the box body (100) along the length direction of the box body (100); The battery compartment (110) is arranged at the leftmost side inside the box body (100) along the length direction of the box body (100); a main air duct communicating with the air outlet of the air conditioner (200) is arranged above the battery compartment (110); at least one group of battery racks (111) is arranged inside the battery compartment (110), and energy storage battery modules (112) are arranged on the battery racks (111); The energy storage inverter compartment (120) and the isolation transformer compartment (130) are arranged opposite to each other along the length direction of the box body (100) on the right side of the battery compartment (110); a system air duct (160) is arranged between the energy storage inverter compartment (120) and the isolation transformer compartment (130); an energy storage inverter device (121) is arranged inside the energy storage inverter compartment (120); an isolation transformer device (131) and an isolation transformer heat dissipation device (132) are arranged in sequence from bottom to top inside the isolation transformer compartment (130); The power distribution compartment (140) is horizontally arranged along the width direction of the box body (100) on the right side of the energy storage inverter compartment (120) and the isolation transformer compartment (130); a secondary power source compartment (141) and an energy storage inverter heat dissipation device (142) are arranged inside the power distribution compartment (140); the secondary power source compartment (141) is arranged at the upper right position inside the power distribution compartment (140), and the energy storage inverter heat dissipation device (142) is arranged on the left side of the secondary power source compartment (141); a secondary power source supply device is arranged inside the secondary power source compartment (141); The auxiliary system compartment (150) is arranged above the isolation transformer compartment (130); a battery management system and an energy management system (151) are arranged inside the auxiliary system compartment (150); Partition boards are arranged between adjacent compartments; The energy storage battery modules (112) and the energy storage inverter device (121) are connected by a cable at the bottom of the box body (100); the energy storage inverter device (121) and the isolation transformer device (131) are connected by a cable at the bottom of the box body (100); Secondary air ducts communicating with the main air duct are arranged inside both the secondary power source compartment (141) and the auxiliary system compartment (150).

2. The energy storage container according to claim 1, characterized in that, The energy storage container is a 20-foot standard container.

3. The energy storage container according to claim 1, wherein, A first door body (170) is arranged outside the energy storage inverter compartment (120), and a first louver (1701) is arranged on the first door body (170); the energy storage inverter heat dissipation device (142) is a plurality of axial flow fans arranged vertically, and a second door body (171) is arranged outside the axial flow fans, and a second louver (1711) is arranged on the second door body (171).

4. The energy storage container according to claim 1, characterized in that A third door body (172) is provided outside the isolation transformer compartment (130), and a third louver (1721) is provided on the third door body (172); the isolation transformer heat dissipation device (132) is a centrifugal fan, and a fourth door body (173) is provided below the auxiliary power source compartment (141), and a fourth louver (1731) and a fifth louver (1732) are sequentially arranged on the fourth door body (173) from bottom to top.

5. The energy storage container according to claim 1, characterized in that, The battery compartment (110), the power distribution compartment (140), and the auxiliary system compartment (150) are all communicated with the return air outlet of the air conditioner (200).

6. The energy storage container according to claim 1, wherein A firewall (1801) is provided on the side of the energy storage inverter compartment (120) and the isolation transformer compartment (130) adjacent to the battery compartment (110).

7. The energy storage container according to claim 1, wherein, A combustible gas intake fan (1802) is further provided on the outer surface of the box body (100) where the air conditioner (200) is located, a combustible gas exhaust fan (1816) is provided above the door body of the battery compartment (110), and an H2 detector is further provided at the inner top of the box body (100).

8. The energy storage container according to claim 1, characterized in that A water fire fighting joint (1803) is further provided on the outer surface of the box body (100) where the air conditioner (200) is located, and a water fire fighting sprinkler (1804) is further provided at the inner top of the box body (100).

9. The energy storage container according to claim 1, wherein An audible and visual alarm (1805), a fire alarm bell (1806), an emergency stop button (1807), a disable switch (1808), and a manual release switch (1809) are further provided in the power distribution compartment (140).

10. The energy storage container according to claim 1, characterized in that, A fire controller (1810) and a fire fighting gas cylinder (1811) are further provided in the auxiliary system compartment (150), and a gas fire fighting sprinkler (1812), a point type smoke fire detector (1813), a point type heat fire detector (1814), and a lithium ion detector (1815) are further provided at the inner top of the box body (100).

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