Flame-retardant metal plate structure of power battery

Abstract

The utility model discloses a flame-retardant metal plate structure of a power battery, which relates to the field of battery protection and comprises a first sealing cover, an S-shaped heat-conducting silica gel gasket is fixedly mounted on the surface of the first sealing cover, a liquid cooling pipe is fixedly mounted in the heat-conducting silica gel gasket, and rectangular grooves are formed in the two sides of the first sealing cover. Second springs are fixedly mounted on the inner walls of the two sides of the rectangular groove, fixing blocks are fixedly mounted at the ends, away from the inner walls of the rectangular groove, of the second springs, rotating blocks are fixedly mounted at the ends, away from the second springs, of the fixing blocks, second connecting rods are rotationally connected into the rotating blocks, and rotating shafts are fixedly mounted on the two sides of the middle of the rectangular groove; first rotating plates are fixedly mounted at the ends, away from the side faces of the rectangular grooves, of the rotating shafts. According to the utility model, the structure is adopted, so that when the battery needs to be replaced, the safety can be improved, and the battery is convenient to replace.

Description

Technical Field

[0001] The utility model belongs to the field of battery protection, and in particular relates to a flame-retardant sheet metal structure of a power battery. Background Art

[0002] The flame-retardant structure of power batteries is a design aimed at improving battery safety. It mainly achieves the prevention and control of fire risks by adopting specific materials and designs. The flame-retardant structure of power batteries is a comprehensive design that combines a variety of flame-retardant materials and design strategies to improve the safety performance of batteries. By adopting these measures, power batteries can more effectively resist the spread of fire when facing fire risks and protect the safety of personnel and equipment.

[0003] The prior art has specially developed some methods for improving the flame retardant structure. For example, a Chinese patent with the announcement number "CN219517623U" discloses "a flame retardant structure for lithium batteries". When the lithium battery spontaneously ignites, the flame burns the isolation layer, causing the flame retardant and the cooling water bag to lose their obstruction and fall into the interior of the outer shell through the flame retardant groove in turn. The flame retardant retards the flame, and the cooling water bag falls into the interior of the outer shell under the action of gravity, causing the cooling water bag to break. The water inside the cooling water bag cools the lithium battery, so that after the lithium battery spontaneously ignites, a series of fire extinguishing structures are triggered to reduce the risk of explosion of the lithium battery and improve the safety performance of the lithium battery.

[0004] The above-mentioned flame retardants and cooling water bags are used to solve the problems of battery protection and combustion spread, which can improve people's safety. However, these are gradually disposable. If the battery pack does not explode and burn, the components will fix the battery for a long time. Due to the long-term use of the battery, the battery will be worn out to a certain extent and the battery storage capacity will be weakened. In this way, the battery power will be used up quickly, and the efficiency of continuous power supply cannot be improved. When you want to restore the battery to its original storage capacity, you must replace the battery. When replacing the battery, you need to dismantle the entire battery before you can replace it. This will increase the workload. If you are not careful during disassembly, the battery will be damaged, which will bring danger to the workers. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a flame retardant sheet metal structure for a power battery to solve the problem of battery protection.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A flame-retardant sheet metal structure for a power battery comprises a cover, an S-shaped heat-conducting silicone gasket is fixedly installed on one side of the cover, a liquid cooling tube is fixedly installed inside the heat-conducting silicone gasket, rectangular grooves are opened inside the two sides of the cover, second springs are fixedly installed on the inner walls of the two sides of the rectangular groove, a fixed block is fixedly installed on one end of the second spring away from the inner wall of the rectangular groove, a rotating block is fixedly installed on one end of the fixed block away from the second spring, a second connecting rod is rotatably connected inside the rotating block, rotating shafts are fixedly installed on two sides of the middle of the rectangular groove, a rotating plate is fixedly installed on one end of the rotating shaft away from the side of the rectangular groove, a fixed shaft is fixedly installed on one end of the rotating plate away from the rotating shaft, and the fixed shaft is fixedly installed on one end of the rotating plate away from the rotating shaft. The first connecting rod is rotatably connected to the internal part of the fixed shaft one, and the end of the fixed shaft one away from the rotating plate one is fixedly connected to the main rotating wheel, and a driving shaft is fixedly installed in the middle of the main rotating wheel, and the end of the main rotating wheel away from the fixed shaft one is fixedly installed with the fixed shaft two, and the one end of the fixed shaft two is fixedly installed with the rotating plate two, and the rotating shaft is fixedly installed in the inside of the rectangular groove, and the second connecting rod is sleeved in the inside of the fixed shaft two, and the end of the second connecting rod away from the rotating plate two is sleeved with a rotating block, and the rotating block is fixedly installed at one end of the second spring, and raised pins are slidably installed on both sides of the rectangular groove, and the bottom of the cover one is clamped and installed with the cover two.

[0008] As a preferred technical solution, a plurality of fixing seats are fixedly mounted on the upper end of the second cover, and batteries are installed inside the fixing seats.

[0009] As a preferred technical solution, the cover has slots on both sides, both ends of the slots are fixedly installed with fixing columns, a pull rod is provided inside the slot, and the pull rod passes through the slot and slides up and down in the slot.

[0010] As a preferred technical solution, both ends of the cover 1 are provided with plug-in grooves, both ends of the plug-in grooves are provided with pin interfaces, and the protruding pins are pin-connected inside the pin interfaces.

[0011] As a preferred technical solution, plug-in blocks are integrally formed at both ends of the bottom of the second cover, and raised pins are fixedly installed on both sides of the inside of the plug-in block.

[0012] As a preferred technical solution, a plurality of first springs are fixedly mounted on one end of the cover 1, and a limiting plate is fixedly mounted on one end of the first spring away from the cover 1.

[0013] As a preferred technical solution, a bearing is fixedly installed inside the main rotating wheel, and a pull rod is fixedly installed on the outer ring of the bearing.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] First, the main rotating wheels installed in the rectangular grooves on both sides of the cover one are lifted by the pull rod to realize rotation, so that the first connecting rod and the second connecting rod connected to the rotating plate one and the rotating plate two can move, so that the raised pin can be recovered to the inside of the rectangular groove, so that the cover one and the cover two can be installed together. Since the raised pin is recovered to the inside of the rectangular groove, the plug pin is plugged into the plug grooves on both sides of the cover two. Pin interfaces are provided on both sides of the plug groove, and then the pull rod is lowered so that the raised pin will automatically rebound to make the raised pin connected to the pin interface, so that the cover one and the cover two can be fixed, and an effective disassembly effect can be achieved, so that it can be used when the battery needs to be replaced, which can improve safety and make the battery easy to replace;

[0016] Second, a limit plate is fixedly installed at the bottom of cover one and at the other end of the first spring. When cover one is connected to cover two, the limit plate will hold the battery against the battery to keep it stable, and will not allow the battery to be affected by external factors and cause instability and collision inside cover one and cover two. This can improve the stability of the battery inside cover one and cover two and also improve the safety of the battery. A thermal conductive silicone gasket and a liquid cooling pipe are fixedly installed at the bottom of cover one to form an S-bend shape to wrap the battery inside cover two. This can prevent the high heat of the battery from causing spontaneous combustion and explosion, and can improve the safety of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure in which the cover 1 and the cover 2 of the utility model are separated;

[0019] Figure 3 It is a schematic diagram of the structure of one side of the utility model where the cover 1 is separated from the cover 2;

[0020] Figure 4 It is a schematic diagram of the internal cross-sectional structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the utility model when viewed from above;

[0022] Figure 6 It is a structural schematic diagram of the rotating plate 1 and the rotating plate 2 of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the main rotating wheel of the utility model;

[0024] Figure 8 This utility model Figure 6 A schematic diagram of the enlarged structure of part A;

[0025] Fig. 9This utility model Figure 7 Schematic diagram of the enlarged structure of part B.

[0026] Figure numerals: 1. Cover 1; 2. Pull rod; 3. Fixed column; 4. Cover 2; 5. Plug-in block; 6. Plug-in slot; 7. Battery; 8. Fixed seat; 9. Limit plate; 10. Thermal conductive silicone gasket; 11. First spring; 12. Liquid cooling pipe; 13. Pin interface; 14. Fixed block; 15. First connecting rod; 16. Rectangular groove; 17. Second connecting rod; 18. Second spring; 19. Turntable 1; 20. Fixed shaft 1; 21. Main rotating wheel; 22. Turntable 2; 23. Rotating shaft; 24. Fixed shaft 2; 25. Notch; 26. Rotating block; 27. Drive shaft; 28. Raised pin; 29. ​​Bearing. DETAILED DESCRIPTION Example

[0027] refer to Figure 1-Figure 7 A flame-retardant sheet metal structure of a power battery in this embodiment includes a cover 1, an S-shaped thermal conductive silicone gasket 10 is fixedly installed at one end of the cover 1, a liquid cooling tube 12 is fixedly installed inside the thermal conductive silicone gasket 10, rectangular grooves 16 are opened inside the two sides of the cover 1, and second springs 18 are fixedly installed on the inner walls of the two sides of the rectangular groove 16, and a fixed block 14 is fixedly installed on one end of the second spring 18 away from the inner wall of the rectangular groove 16, and a rotating block 26 is fixedly installed on one end of the fixed block 14 away from the second spring 18, and a second connecting rod 17 is rotatably connected inside the rotating block 26, and a rotating shaft 23 is fixedly installed on both sides of the middle of the rectangular groove 16, and a rotating plate 19 is fixedly installed on one end of the rotating shaft 23 away from the side of the rectangular groove 16, and a rotating plate 19 is fixedly installed on one end of the rotating plate 19 away from the rotating shaft 23 There is a fixed shaft 20, the internal rotation of the fixed shaft 20 is connected with the first connecting rod 15, the end of the fixed shaft 20 away from the rotating plate 19 is fixedly connected to the main rotating wheel 21, the middle of the main rotating wheel 21 is fixedly installed with a driving shaft 27, the end of the main rotating wheel 21 away from the fixed shaft 20 is fixedly installed with a fixed shaft 24, one end of the fixed shaft 24 is fixedly installed with a rotating plate 22, the end of the rotating plate 22 away from the fixed shaft 24 is fixedly installed with a rotating shaft 23, the rotating shaft 23 is fixedly installed inside the rectangular groove 16, the fixed shaft 24 is sleeved with a second connecting rod 17, the end of the second connecting rod 17 away from the rotating plate 22 is sleeved with a rotating block 26, the rotating block 26 is fixedly installed on one end of the second spring 18, and raised pins 28 are slidably installed on both sides of the rectangular groove 16.

[0028] refer to Figure 4 , Figures 6 to 8A plurality of fixing seats 8 are fixedly installed on the upper end of the cover 2 4, and a battery 7 is installed inside the fixing seat 8. The fixing seat 8 can effectively stabilize and fix the battery 7, and can improve the situation that the battery 7 does not fall off in the cover 1 and the cover 2 4, which can effectively improve the safety. The two ends of the slot 25 are fixedly installed with fixing columns 3, and a pull rod 2 is provided inside the slot 25. The pull rod 2 passes through the slot 25 and slides up and down in the slot 25. The pull rod 2 can make the main rotating wheel 21 rotate, so that the disassembly function can be conveniently performed. It will be beneficial when replacing the battery 7 at a later time, because the pin connection can be achieved by simply lifting the pull rod 2, which will improve convenience and make it more convenient for workers to use. Insertion grooves 6 are provided at both ends of the cover 1, and pin interfaces 13 are provided at both ends of the inserting groove 6. The protruding pin 28 is pinned inside the pin interface 13, so that the cover 2 4 will have a slot that allows the cover 1 to be snapped in, so that the cover 1 can be fixed to the cover 2 4 box to play a role in protecting the point battery 7, so that the safety of the battery 7 will be improved.

[0029] refer to Figure 3 , Figures 7 to 9 , plug-in blocks 5 are integrally formed at both ends of the bottom of the cover 2 4, and protruding pins 28 are fixedly installed on both sides of the inside of the plug-in block 5. The plug-in block 5 can play a limiting role for the cover 1 and the cover 2 4 after installation, so that the cover 1 and the cover 2 4 can be installed more accurately. A plurality of first springs 11 are fixedly installed at one end of the cover 1, and a limiting plate 9 is fixedly installed at the end of the first spring 11 away from the cover 1. The limiting plate 9 can effectively limit the battery 7, so that the battery 7 will not fall off or collide with the inside of the cover 1 and the cover 2 4 due to external shaking. A bearing 29 is fixedly installed inside the main rotating wheel 21, and a pull rod 2 is fixedly installed on the outer ring of the bearing 29. In this way, the pull rod 2 can be used to achieve an effect of clamping the cover 1 and the cover 2 4. In this way, it will be more convenient and quick to replace the battery 7, and the battery 7 can be effectively maintained.

[0030] Principle and advantages of use: First, pull the pull rod 2 installed on the side of the cover 1, so that the main rotating wheel 21 installed on the pull rod 2 will rotate, and then the main rotating wheel 21 can drive the rotating plate 19 and the rotating plate 22 to rotate, so that the first connecting rod 15 and the second connecting rod 17 installed on the rotating plate 19 and the rotating plate 22 will pull the protruding pin 28, because the protrusion is slidably installed on both sides of the rectangular groove 16, so when the protruding pin 28 is pulled, the protruding pin 28 will retract into the rectangular groove 16, so that the cover 1 and the cover 2 4 can be installed, and the plug-in block 5 integrally formed at the bottom of the cover 1 can reduce the difficulty of docking with the cover 2 4, and then the plug-in pin is installed against the plug-in groove 6 opened on both sides of the cover 2 4. After installation, release the pull rod 2 and the protruding pin 28 will be pinned to the pin interface 13. Since one end of the protruding pin 28 is installed A second spring 18 is installed, so when the railing is released, the raised pin 28 will return to its original shape due to the pull of the second spring 18, so that the raised pin 28 can be effectively pinned to the pin interface 13, and an S-shaped thermally conductive silicone gasket 10 is fixedly installed at the bottom of the cover 1, and a liquid cooling tube 12 is installed inside the thermally conductive silicone gasket 10. When the cover 1 and the cover 2 are installed, the S-shaped thermally conductive silicone gasket 10 will wrap the battery 7, so that the battery 7 can be effectively prevented from spontaneous combustion and explosion, thereby improving safety. A first spring 11 is installed at the bottom of the cover 1, and a limiting plate 9 is fixedly installed at one end of the first spring 11. The limiting plate 9 can effectively limit the battery 7, so that the battery 7 will not fall off or collide inside the cover 1 and the cover 2 4 due to external shaking, thereby improving safety while also improving convenience.

Claims

1. A flame-retardant sheet metal structure for a power battery, comprising a cover 1 (1), characterized in that: An S-shaped heat-conducting silicone gasket (10) is fixedly installed on one side of the cover (1), and a liquid cooling tube (12) is fixedly installed inside the heat-conducting silicone gasket (10). Rectangular grooves (16) are opened inside the two sides of the cover (1), and second springs (18) are fixedly installed on the inner walls of the two sides of the rectangular groove (16). A fixed block (14) is fixedly installed on the end of the second spring (18) away from the inner wall of the rectangular groove (16), and a rotating block (26) is fixedly installed on the end of the fixed block (14) away from the second spring (18). The second connecting rod (17) is rotatably connected inside the rotating block (26). Rotating shafts (23) are fixedly installed on both sides of the middle of the rectangular groove (16), and a rotating plate (19) is fixedly installed on the end of the rotating shaft (23) away from the side of the rectangular groove (16). A fixed shaft (20) is fixedly installed on the end of the rotating plate (19) away from the rotating shaft (23), and the fixed shaft (20) is rotatably connected inside a connecting rod (15), wherein the end of the fixed shaft (20) away from the rotating plate (19) is fixedly connected to the main rotating wheel (21), the middle of the main rotating wheel (21) is fixedly mounted with a driving shaft (27), the end of the main rotating wheel (21) away from the fixed shaft (20) is fixedly mounted with a fixed shaft (24), one end of the fixed shaft (24) is fixedly mounted with a rotating plate (22), and the end of the rotating plate (22) away from the fixed shaft (24) is fixedly mounted with a rotating shaft (23), the rotating shaft (23) is fixedly installed inside the rectangular groove (16), the second connecting rod (17) is sleeved inside the second fixed shaft (24), the second connecting rod (17) is sleeved at one end away from the second rotating plate (22) with a rotating block (26), the rotating block (26) is fixedly installed on one end of the second spring (18), both sides of the rectangular groove (16) are slidably installed with protruding pins (28), and the bottom of the first cover (1) is clamped and installed with the second cover (4).

2. The flame-retardant sheet metal structure of a power battery according to claim 1, characterized in that: A plurality of fixing seats (8) are fixedly mounted on the upper end of the second cover (4), and batteries (7) are mounted inside the fixing seats (8).

3. The flame-retardant sheet metal structure of a power battery according to claim 1, characterized in that: The cover (1) has slots (25) on both sides thereof, and fixing posts (3) are fixedly mounted at both ends of the slot (25). A pull rod (2) is provided inside the slot (25), and the pull rod (2) passes through the slot (25) and slides up and down inside the slot (25).

4. The flame-retardant sheet metal structure of a power battery according to claim 1, characterized in that: Insertion grooves (6) are provided at both ends of the cover 1 (1), pin interfaces (13) are provided at both ends inside the insertion groove (6), and the protruding pin (28) is clamped inside the pin interface (13).

5. The flame-retardant sheet metal structure of a power battery according to claim 1, characterized in that: The two ends of the bottom of the second cover (4) are integrally formed with plug-in blocks (5), and the two sides of the inside of the plug-in block (5) are fixedly mounted with protruding pins (28).

6. The flame-retardant sheet metal structure of a power battery according to claim 1, characterized in that: A plurality of first springs (11) are fixedly mounted on one end of the cover one (1), and a limiting plate (9) is fixedly mounted on one end of the first spring (11) away from the cover one (1).

7. The flame-retardant sheet metal structure of a power battery according to claim 1, characterized in that: A bearing (29) is fixedly mounted inside the main rotating wheel (21), and a pull rod (2) is fixedly mounted on the outer ring of the bearing (29).

Images