Fireproof and explosion-proof isolation bin of marine lithium battery

Abstract

The utility model discloses a fire-proof and explosion-proof isolation cabin of a marine lithium battery, which relates to the field of marine lithium batteries and comprises an isolation cabin shell, a sealing cover is hinged to the top of the isolation cabin shell, a heat insulation layer is wrapped inside the isolation cabin shell, an explosion-proof layer is fixedly connected inside the heat insulation layer, and the explosion-proof layer is fixedly connected with the top of the isolation cabin shell. And a temperature sensor body is arranged on the inner wall of the explosion-proof layer. According to the fireproof and explosion-proof isolation bin for the marine lithium battery, by arranging the screw rod, the movable sleeve and the clamping plate, the marine lithium battery can be fixedly installed conveniently, the situation that the marine lithium battery shakes and is damaged is avoided, and by arranging the isolation bin shell, the heat insulation layer and the explosion-proof layer, the fireproof and explosion-proof effect of the marine lithium battery isolation bin is conveniently achieved; and the temperature sensor body, the control assembly and the electromagnetic valve body are arranged, real-time temperature monitoring and fire extinguishing of the fireproof and explosion-proof isolation bin can be conveniently achieved, meanwhile, the telescopic rod and the compression spring are arranged, and the fireproof and explosion-proof isolation bin can be rapidly opened and closed conveniently.

Description

Technical Field

[0001] This utility model relates to the field of marine lithium battery technology, specifically a fireproof and explosion-proof isolation compartment for marine lithium batteries. Background Technology

[0002] Marine lithium batteries are battery systems specifically designed for ships. They use lithium-ion technology to provide stable and reliable power for ships. In many modern ships, fireproof and explosion-proof isolation compartments are used to protect marine lithium batteries. However, when using existing fireproof and explosion-proof isolation compartments, thermal runaway can easily occur due to malfunctions in the heat dissipation system or short circuits inside the battery during operation. This can lead to a sharp rise in the temperature of the battery module. However, passive isolation alone cannot completely solve the fireproof and explosion-proof problems of lithium batteries.

[0003] To overcome the aforementioned deficiencies, existing technology (Chinese patent application number: 202022677186.8, application date: November 18, 2020) discloses a fireproof and explosion-proof isolation chamber for lithium batteries, including an outer shell and a cover disposed on the upper end of the outer shell. The outer wall of the outer shell has several first vent holes. Several energy storage devices are disposed inside the outer shell. Each energy storage device includes an explosion-proof shell. At least one battery pack is disposed inside the explosion-proof shell. A charging interface is disposed at the lower end of each battery pack, located on the bottom surface of the outer shell. A controller is disposed at the upper end of the battery pack, and a fire extinguishing device is disposed on the controller. An explosion-proof cover is disposed at the upper end of the fire extinguishing device. The explosion-proof cover is engaged with the explosion-proof shell. An explosion-proof device is disposed on the explosion-proof cover, and the explosion-proof device includes a mounting base disposed on the explosion-proof cover. At least one set of explosion-proof components abuts against one side of the mounting base. The purpose of this utility model is to provide a fireproof and explosion-proof isolation chamber for lithium batteries with stable structure, good explosion-proof performance, and high safety performance.

[0004] Although existing technology can solve the problem of fire and explosion protection for lithium batteries, and although this design takes explosion protection performance into account, the first vent on the outer shell may not be sufficient to meet the heat dissipation requirements of the battery pack under high load operation. If the heat dissipation is poor, the battery pack may malfunction due to overheating, which may lead to safety issues. Furthermore, it is impossible to fix the marine lithium battery in place, making the lithium battery on the ship prone to shaking and damage. In addition, the lack of a fire extinguishing structure makes it impossible to monitor the temperature and extinguish fires in the fireproof and explosion-proof isolation compartment in real time.

[0005] Therefore, we proposed a fireproof and explosion-proof isolation compartment for marine lithium batteries that can effectively solve the above problems. Summary of the Invention

[0006] The purpose of this utility model is to provide a fireproof and explosion-proof isolation compartment for marine lithium batteries, in order to solve the problems mentioned in the background art. Although the design of the current fireproof and explosion-proof isolation compartment takes explosion-proof performance into account, the first vent on the outer shell may not be sufficient to meet the heat dissipation requirements of the battery pack under high load operation. If the heat dissipation is poor, the battery pack may malfunction due to overheating, which may lead to safety problems. In addition, it is impossible to fix the marine lithium battery in place, making the lithium battery on the ship prone to shaking and damage. Furthermore, the lack of a fire extinguishing structure makes it impossible for the fireproof and explosion-proof isolation compartment to monitor the temperature and extinguish fires in real time.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fireproof and explosion-proof isolation compartment for marine lithium batteries, comprising an isolation compartment shell, a sealing cover hinged to the top of the isolation compartment shell, a heat insulation layer inside the isolation compartment shell, an explosion-proof layer fixedly connected inside the heat insulation layer, a temperature sensor body disposed on the inner wall of the explosion-proof layer, and a drain pipe fixedly connected to the right side of the isolation compartment shell; a liquid level observer body disposed on the front left side of the isolation compartment shell, a control component disposed on the front right side of the isolation compartment shell, a lithium battery body detachably connected inside the isolation compartment shell, clamping components for limiting the position disposed on both sides of the isolation compartment shell, the clamping components including a rotating handle; a powder spraying component for extinguishing fire disposed on the top left side of the sealing cover, the powder spraying component including a powder inlet pipe, and telescopic components for opening the sealing cover disposed on both sides of the isolation compartment shell.

[0008] As a preferred technical solution of this application, the powder inlet pipe is internally threaded with a connecting pipe on the left side, and the end of the connecting pipe is connected to an external dry powder tank. The outer wall of the powder inlet pipe is provided with an electromagnetic valve body. A spray plate is fixedly installed at the end of the powder inlet pipe, and the spray plate is fixedly installed at the bottom of the sealing cover. Several nozzles are fixedly connected to the bottom of the spray plate.

[0009] As a preferred technical solution of this application, the telescopic component includes a first mounting base, a fixed cylinder is rotatably connected inside the first mounting base, a compression spring is fixedly installed inside the fixed cylinder, a movable plate is fixedly connected to the top of the compression spring, a telescopic rod is fixedly installed on the top of the movable plate, a second mounting base is rotatably connected to the top of the telescopic rod, and a sealing cover is rotatably connected to the left side of the second mounting base.

[0010] As a preferred technical solution of this application, the internal thread of the rotating handle is connected to a bolt, and the end of the bolt is inserted into the outer shell of the isolation chamber. Several threaded holes are opened on both sides of the outer shell of the isolation chamber. A screw is fixedly installed on the inner wall of the rotating handle. A movable sleeve is connected to the outer wall of the screw. A clamping plate is fixedly connected to the inner wall of the movable sleeve. A fireproof layer is provided inside the clamping plate. Guide rods are movably connected to the upper and lower sides of the movable sleeve, and the outer ends of the guide rods are fixedly connected to the inner wall of the explosion-proof layer.

[0011] As a preferred technical solution of this application, the heat insulation layer is fixedly connected to the outer shell of the isolation chamber and the explosion-proof layer. The heat insulation layer is made of glass wool, the outer shell of the isolation chamber is made of alloy steel, and the explosion-proof layer is made of bulletproof steel. The heat insulation layer, made of glass wool, installed inside the outer shell of the isolation chamber has excellent heat insulation performance and can reduce the transfer of heat between the inside and outside of the isolation chamber, thereby keeping the lithium battery working within a suitable temperature range. The explosion-proof layer, made of bulletproof steel, has extremely high strength and toughness.

[0012] As a preferred technical solution of this application, the movable plate and the fixed cylinder are movably connected, and the movable plate and the telescopic rod are fixedly connected. When the operator manually lifts the sealing cover upward, the lifting action of the sealing cover is transmitted to the telescopic rod through the second mounting seat, causing the telescopic rod to rotate relative to the second mounting seat and move outward. The outward movement of the telescopic rod causes the movable plate, which is fixedly connected to it, to slide inside the fixed cylinder.

[0013] As a preferred technical solution of this application, the movable sleeve is movably connected to the screw and the guide rod. The movable sleeve is configured with a cross-shaped structure. By having the operator rotate the screw counterclockwise in sequence, the screw drives the movable sleeve to move. During the movement of the movable sleeve, it moves on the upper and lower guide rods, which increases the stability and guidance of the movement of the movable sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The fireproof and explosion-proof isolation compartment for marine lithium batteries, by setting screws, movable sleeves, and clamping plates, facilitates the fixed installation of marine lithium batteries, preventing damage caused by shaking of the lithium batteries on the ship. Furthermore, the isolation compartment shell, heat insulation layer, and explosion-proof layer ensure that the marine lithium battery isolation compartment achieves fireproof and explosion-proof effects. Additionally, the inclusion of a temperature sensor body, control components, and an electromagnetic valve body facilitates real-time temperature monitoring and fire suppression within the fireproof and explosion-proof isolation compartment. Finally, the installation of a telescopic rod and compression spring facilitates the rapid opening and closing of the fireproof and explosion-proof isolation compartment. Specific details are as follows:

[0015] 1. A screw, a movable sleeve, and a clamping plate are provided. The rotation of the screw drives the movable sleeve to move. During the movement of the movable sleeve, the clamping plate is brought into contact with both sides of the lithium battery body. The bolts are inserted into the corresponding threaded holes in the outer shell of the isolation compartment, so that the screw is fixed in the outer shell of the isolation compartment. This achieves fixed installation of the marine lithium battery and avoids damage caused by shaking of the marine lithium battery.

[0016] Furthermore, an isolation chamber shell, a heat insulation layer, and an explosion-proof layer are installed. The isolation chamber shell is made of alloy steel, which can effectively protect the internal lithium battery from damage by the external environment. The heat insulation layer is made of glass wool, which has excellent heat insulation performance and can reduce the transfer of heat between the inside and outside of the isolation chamber. The explosion-proof layer is made of bulletproof steel, which has extremely high strength and toughness and can resist the possibility of battery explosion under extreme conditions, protecting the safety of the surrounding environment and personnel, so that the marine lithium battery isolation chamber achieves fireproof and explosion-proof effects.

[0017] Furthermore, a temperature sensor body, control components, and a solenoid valve body are installed. The temperature sensor body monitors the temperature inside the isolation chamber in real time. In conjunction with the control components, the solenoid valve body is activated, allowing external dry powder to enter the spray plate through the connecting pipe and the powder inlet pipe. Several nozzles connected to the spray plate then spray the dry powder onto the lithium battery body, rapidly reducing the temperature and extinguishing the flames. This achieves real-time temperature monitoring and fire extinguishing of the fireproof and explosion-proof isolation chamber.

[0018] 2. A telescopic rod and a compression spring are installed. The second mounting base is driven to the telescopic rod by lifting the sealing cover, causing the telescopic rod to rotate relative to the second mounting base and move outward. The telescopic rod drives the moving plate to move outward and stretches the compression spring, thereby quickly opening the sealing cover. Due to the elastic potential energy stored in the compression spring, the sealing cover can be driven to reset and close, realizing the rapid opening and closing of the fireproof and explosion-proof isolation compartment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the open structure of the isolation chamber shell and sealing cover of this utility model;

[0021] Figure 3 This is a partial cross-sectional view of the outer shell of the isolation chamber of this utility model;

[0022] Figure 4 This is a partial cross-sectional structural diagram of the fixed cylinder of this utility model;

[0023] Figure 5 This is a partial cross-sectional structural diagram of the screw, movable sleeve, and guide rod of this utility model;

[0024] Figure 6This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Isolation chamber outer shell; 2. Sealing cover; 3. Heat insulation layer; 4. Explosion-proof layer; 5. Lithium battery body; 6. Liquid level observer body; 7. Temperature sensor body; 8. Control components; 9. Powder inlet pipe; 10. Guide rod; 11. Solenoid valve body; 12. Spray plate; 13. Nozzle; 14. Drain pipe; 15. First mounting base; 16. Fixed cylinder; 17. Compression spring; 18. Moving plate; 19. Telescopic rod; 20. Second mounting base; 21. Rotary handle; 22. Screw; 23. Moving sleeve; 24. Clamping plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-6 The present invention provides the following technical solution:

[0028] Example 1: To address the shortcomings of commercially available fireproof and explosion-proof isolation chambers, which, while considering explosion-proof performance, often have insufficient vents on the outer shell to meet the heat dissipation requirements of the battery pack under high loads. Poor heat dissipation can lead to overheating and battery pack malfunctions, causing safety issues. Furthermore, these chambers cannot securely mount marine lithium batteries, making them prone to movement and damage. The lack of fire extinguishing mechanisms prevents real-time temperature monitoring and fire suppression. This example discloses the following technical details for a fireproof and explosion-proof isolation chamber for marine lithium batteries, which can be referenced in the appendix. Figure 1 - Appendix Figure 3 and attached Figure 5 - Appendix Figure 6The enclosure includes an isolation chamber shell 1, with a sealing cover 2 hinged to the top of the shell 1. An insulation layer 3 is wrapped inside the shell 1, and an explosion-proof layer 4 is fixedly connected inside the insulation layer 3. A temperature sensor body 7 is installed on the inner wall of the explosion-proof layer 4. A drain pipe 14 is fixedly connected to the right side of the shell 1. A liquid level observer body 6 is installed on the front left side of the shell 1, and a control component 8 is installed on the front right side of the shell 1. A lithium battery body 5 is detachably connected inside the shell 1. Clamping components for limiting movement are installed on both sides of the shell 1, including a handle 21. A powder spraying component for fire extinguishing is installed on the top left side of the sealing cover 2, including a powder inlet pipe 9. A connecting pipe is threaded inside the left side of the powder inlet pipe 9, and the end of the connecting pipe is connected to an external dry powder tank. An electromagnetic valve body 11 is installed on the outer wall of the powder inlet pipe 9, and a spray plate 12 is fixedly installed at the end of the powder inlet pipe 9, with the spray plate 12 fixedly installed at the bottom of the sealing cover 2. The bottom of the spray plate 12 is fixedly connected to several nozzles 13; the inside of the rotating handle 21 is threaded with bolts, and the ends of the bolts are inserted into the outer shell 1 of the isolation chamber. Several threaded holes are opened on both sides of the outer shell 1 of the isolation chamber. The inner wall of the rotating handle 21 is fixedly installed with a screw 22. The outer wall of the screw 22 is connected with a movable sleeve 23. The inner wall of the movable sleeve 23 is fixedly connected with a clamping plate 24. The inside of the clamping plate 24 is provided with a fireproof layer. The upper and lower sides of the movable sleeve 23 are movably connected with guide rods 10, and the outer end of the guide rods 10 is fixedly connected to the inner wall of the explosion-proof layer 4; the heat insulation layer 3 is fixedly connected to the outer shell 1 of the isolation chamber and the explosion-proof layer 4. The heat insulation layer 3 is made of glass wool material, the outer shell 1 of the isolation chamber is made of alloy steel, and the explosion-proof layer 4 is made of bulletproof steel; the movable plate 18 is movably connected to the fixed cylinder 16, and the movable plate 18 is fixedly connected to the telescopic rod 19; the movable sleeve 23 is movably connected to the screw 22 and the guide rod 10. The movable sleeve 23 is set with a cross-shaped structure.

[0029] With the isolation chamber shell 1 and sealing cover 2 open, the operator places the required marine lithium battery body 5 inside the isolation chamber shell 1. Depending on the size of the lithium battery body 5, the operator rotates the screw 22 counterclockwise, causing the screw 22 to move the moving sleeve 23. During this movement, the moving sleeve 23 moves along the upper and lower guide rods 10, increasing its stability and guidance. This allows the moving sleeve 23 to cause the clamping plate 24 to fit against both sides of the lithium battery body 5. Next, the bolt is manually inserted through the rotating handle 21 into the corresponding threaded hole in the isolation chamber shell 1, fixing the screw 22 in place. This secures the marine lithium battery, preventing damage from shaking. After the lithium battery body 5 is installed in the isolation chamber shell 1, the sealing cover 2 is closed to ensure the isolation chamber is airtight. The isolation chamber shell 1, made of alloy steel, has high strength and corrosion resistance, effectively protecting the internal lithium battery from external environmental damage. The heat insulation layer 3 inside the isolation chamber shell 1, made of glass wool, further enhances the protection. Made of high-quality materials, the isolation chamber has excellent heat insulation properties, reducing heat transfer between the inside and outside of the isolation chamber and thus keeping the lithium battery operating within a suitable temperature range. The explosion-proof layer 4 is made of bulletproof steel, which has extremely high strength and toughness, and can resist the possibility of battery explosion under extreme conditions, protecting the surrounding environment and personnel safety. This enables the marine lithium battery isolation chamber to achieve fireproof and explosion-proof effects. A temperature sensor body 7 is installed on the inner wall of the explosion-proof layer 4 to monitor the temperature inside the isolation chamber in real time. When the temperature rises abnormally and reaches a preset threshold, the control component 8 will receive a signal and activate the solenoid valve body 11 connected to the powder inlet pipe 9, allowing external dry powder to enter the spray plate 12 through the connecting pipe and the powder inlet pipe 9. Several nozzles 13 connected to the spray plate 12 will spray the dry powder onto the lithium battery body 5, quickly reducing the temperature and extinguishing the flames. The drain pipe 14 is used to discharge the residue after extinguishing the fire. A liquid level observer body 6 is installed on the front left side of the isolation chamber shell 1, allowing personnel to observe the liquid level inside the isolation chamber from the outside. This realizes real-time temperature monitoring and fire extinguishing of the fireproof and explosion-proof isolation chamber.

[0030] Example 2: The fireproof and explosion-proof isolation compartment for marine lithium batteries in this example discloses the following technical content, facilitating the rapid opening and closing of the fireproof and explosion-proof isolation compartment. Please refer to the attached document. Figure 1 - Appendix Figure 2 and attached Figure 4 The outer shell 1 of the isolation chamber is provided with telescopic components on both sides for opening the sealing cover 2. The telescopic components include a first mounting base 15, a fixed cylinder 16 is rotatably connected inside the first mounting base 15, a compression spring 17 is fixedly installed inside the fixed cylinder 16, a movable plate 18 is fixedly connected to the top of the compression spring 17, a telescopic rod 19 is fixedly installed on the top of the movable plate 18, a second mounting base 20 is rotatably connected to the top of the telescopic rod 19, and the sealing cover 2 is rotatably connected to the left side of the second mounting base 20.

[0031] When the outer shell 1 of the isolation chamber needs to be opened, the operator manually lifts the sealing cover 2 upwards. The lifting action of the sealing cover 2 is transmitted to the telescopic rod 19 through the second mounting base 20, causing the telescopic rod 19 to rotate relative to the second mounting base 20 and move outwards. The outward movement of the telescopic rod 19 drives the movable plate 18, which is fixedly connected to it, to slide inside the fixed cylinder 16. During the outward movement of the movable plate 18, it stretches the compression spring 17 fixedly installed inside the fixed cylinder 16. As the sealing cover 2 continues to be lifted, it reaches the fully open state. At this time, the operator can easily operate or maintain the inside of the isolation chamber. After the operation or maintenance inside the isolation chamber is completed, the operator releases the sealing cover 2. Due to the elastic potential energy stored in the compression spring 17, it begins to release energy and pushes the movable plate 18 to move inwards. The inward movement of the movable plate 18 drives the telescopic rod 19 to move accordingly, and pulls the sealing cover 2 downwards to close it through the second mounting base 20, realizing the rapid opening and closing of the fireproof and explosion-proof isolation chamber.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fireproof and explosion-proof isolation bin for marine lithium batteries, comprising an isolation bin shell (1), a sealing cover (2) hingedly connected to the top of the isolation bin shell (1), a heat insulation layer (3) wrapped inside the isolation bin shell (1), an explosion-proof layer (4) fixedly connected inside the heat insulation layer (3), a temperature sensor body (7) arranged on the inner wall of the explosion-proof layer (4), and a pollution discharge pipe (14) fixedly connected to the right side of the isolation bin shell (1). characterized in that A liquid level viewer body (6) is arranged on the front of the left side of the isolation bin shell (1), a control assembly (8) is arranged on the front of the right side of the isolation bin shell (1), a lithium battery body (5) is detachably connected inside the isolation bin shell (1), clamping assemblies for limiting are arranged on both sides of the isolation bin shell (1), and the clamping assemblies comprise a rotating handle (21). A powder spraying assembly for extinguishing fire is arranged on the top of the left side of the sealing cover (2), the powder spraying assembly comprises a powder inlet pipe (9), and telescopic assemblies for opening the sealing cover (2) are arranged on both sides of the isolation bin shell (1).

2. A fire and explosion proof isolated compartment for lithium batteries for marine use according to claim 1, characterized in that: A connecting pipe is screwedly connected to the inside of the left side of the powder inlet pipe (9), the connecting pipe is connected to an external dry powder tank at the end thereof, an electromagnetic valve body (11) is arranged on the outer wall of the powder inlet pipe (9), a spray plate (12) is fixedly installed at the end of the powder inlet pipe (9), the spray plate (12) is fixedly installed at the bottom of the sealing cover (2), and a plurality of spray heads (13) are fixedly connected to the bottom of the spray plate (12).

3. The fire and explosion proof isolation compartment of a marine lithium battery of claim 1, wherein: The telescopic assemblies comprise a first mounting seat (15), a fixed cylinder (16) is rotatably connected to the inside of the first mounting seat (15), a compression spring (17) is fixedly installed in the fixed cylinder (16), a moving plate (18) is fixedly connected to the top end of the compression spring (17), a telescopic rod (19) is fixedly installed at the top of the moving plate (18), a second mounting seat (20) is rotatably connected to the top of the telescopic rod (19), and the sealing cover (2) is rotatably connected to the left side of the second mounting seat (20).

4. The fire and explosion proof isolated compartment of lithium battery for marine use according to claim 1, characterized in that: A screw is screwedly connected to the inside of the rotating handle (21), the screw is inserted into the isolation bin shell (1) at the end thereof, a plurality of threaded holes are formed in both sides of the isolation bin shell (1), a screw rod (22) is fixedly installed on the inner wall of the rotating handle (21), a moving sleeve (23) is connected to the outer wall of the screw rod (22), a clamping plate (24) is fixedly connected to the inner wall of the moving sleeve (23), a fireproof layer is arranged in the inside of the clamping plate (24), guide rods (10) are movably connected to the inside of the moving sleeve (23) on both upper and lower sides, and the outer ends of the guide rods (10) are fixedly connected to the inner wall of the explosion-proof layer (4).

5. The fire and explosion proof isolation compartment of a marine lithium battery of claim 1, wherein: The heat insulation layer (3) is fixedly connected to the isolation bin shell (1) and the explosion-proof layer (4), the heat insulation layer (3) is made of glass wool material, the isolation bin shell (1) is made of alloy steel, and the explosion-proof layer (4) is made of bulletproof steel.

6. A fire and explosion proof isolated compartment for lithium batteries for marine use according to claim 3, characterized in that: The moving plate (18) is movably connected to the fixed cylinder (16), and the moving plate (18) is fixedly connected to the telescopic rod (19).

7. The fire and explosion proof isolated compartment of lithium battery for marine use according to claim 4, characterized in that: The moving sleeve (23) is movably connected with both the screw rod (22) and the guide rod (10), and is provided in a cross-shaped structure.

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