New energy storage battery with protection device
By designing new energy storage batteries with protective devices, including ejection mechanisms and contact limit mechanisms, the problem of lithium batteries being easily caused by heat loss and spontaneous combustion in high temperatures and collisions is solved, and the effect of effectively preventing fire from spreading and power outage is achieved, providing guarantees for the safety of battery packs and peripheral equipment, and facilitating the recycling of lithium batteries.
Patent Information
- Application Number
- CN202510367798.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2045-03-26
AI Technical Summary
Existing new energy outdoor batteries are prone to cause heat out of control and spontaneous combustion in high temperature environments and collisions, resulting in frequent fires and explosions. Existing protective measures are difficult to effectively prevent accidents.
A new energy storage battery with protective devices is designed, including a battery compartment, an ejection mechanism and abutment limit mechanism. When a lithium battery short circuit and fire, the ejection mechanism will eject the lithium battery from the inside of the battery compartment and cut off the power through the conductive metal rod. The abutment limit mechanism will block the flame through a high-expanding foam fire extinguishing agent and an elastic telescopic tube to prevent the fire from spreading.
It effectively avoids the fire inside the battery compartment, prevents the short circuit of other lithium batteries from being caused by high temperatures, reduces the risk of fire spread, provides strong guarantees for the safety of the battery pack and peripheral equipment, and provides convenience for the later recycling of lithium batteries.
Smart Images

Figure CN120237307A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of batteries, and particularly to a new energy storage battery with a protection device. Background Art
[0002] Nowadays, outdoor lifestyles such as camping and wilderness exploration are becoming increasingly popular, and the demand for reliable outdoor power sources is continuously rising. New energy outdoor batteries, with characteristics such as environmental protection and high efficiency, have become key devices for powering electronic devices and lighting tools in outdoor activities, greatly improving the convenience of outdoor activities. The annual growth rate of market sales exceeds 30%;
[0003] However, their safety issues are prominent. Most new energy outdoor batteries use lithium-ion battery technology, with a complex internal structure. The high-temperature outdoor environment is likely to accelerate the internal chemical reactions of the batteries, reducing thermal stability. Collisions and squeezes during transportation or use may damage the internal structure of the batteries, leading to thermal runaway. Once a single small battery experiences thermal runaway, the temperature will soar instantly, releasing combustible gases and making it extremely prone to spontaneous combustion. Since the battery packs are closely arranged, the spontaneous combustion of a single small battery will quickly spread, causing the entire battery pack to catch fire or even explode. Last year, there were more than 200 accidents caused by the safety problems of new energy outdoor batteries, seriously damaging users' property, affecting the market reputation, and hindering the development of the industry;
[0004] Currently, in the industry, parameters are monitored through a battery management system to give early warnings of abnormalities, and fireproof partitions and flame-retardant materials are used to isolate small batteries to reduce the risk of heat spread. However, due to the complex outdoor environment and the reaction speed of thermal runaway, these measures are difficult to effectively prevent accidents. Therefore, it is crucial to develop a protection device that can quickly eject and discharge a single small battery when it catches fire spontaneously to improve the safety of new energy outdoor batteries and promote the sustainable development of the industry.
[0005] After retrieval, it is found that the prior art with the publication number CN111244570A discloses a protection device for a new energy storage battery against spontaneous combustion, including a housing. An installation cavity is provided inside the housing. A battery body is installed on the rear inner wall of the installation cavity. Ventilation openings are provided at both the inner top and inner bottom of the installation cavity. Two ventilation mechanisms are symmetrically provided on both the upper and lower inner walls of the housing. The ventilation mechanism includes a first piston and a second piston respectively slidingly connected in two corresponding chutes. A heat dissipation plate is fixedly connected between the first piston and the second piston. The heat dissipation plate consists of half a solid plate and half a mesh plate. This protection device is provided with a fire suppression mechanism. If spontaneous combustion occurs, the heat dissipation holes will be blocked to prevent air from entering the protection device, suppressing the combustion of the fire. At the same time, the temperature generated by spontaneous combustion will trigger the fire extinguishing mechanism to achieve rapid fire extinguishing, effectively suppressing the spontaneous combustion of the storage battery.
[0006] Therefore, based on the above retrieval and in combination with the existing ones, when the above solution is used and the storage battery catches fire spontaneously, only the fire of the storage battery is suppressed through the fire suppression mechanism. And when the spontaneous combustion occurs, the heat dissipation holes will be blocked to prevent air from entering the protection device and suppress the combustion of the fire. At the same time, the temperature generated by the spontaneous combustion will trigger the fire extinguishing mechanism to achieve rapid fire extinguishing, effectively suppressing the spontaneous combustion of the storage battery. However, it is unable to discharge a single battery on fire to the outside, which has limitations. To solve the problem of being unable to discharge a single battery on fire to the outside, for this reason, we propose a new energy storage battery with a protection device. Summary of the Invention
[0007] The purpose of the present invention is to provide a new energy storage battery with a protection device to solve the problems raised in the above background technology.
[0008] To achieve the above purpose, the present invention provides the following technical solutions:
[0009] A new energy storage battery with a protection device includes a battery compartment. The upper end of the battery compartment is fixedly connected with a battery cover. The bottom end of the inner wall of the battery compartment is fixedly connected with a connecting frame. Both the front and rear ends of the connecting frame are fixedly connected with a number of mounting plates. One end of each mounting plate away from the connecting frame is fixedly connected with a mounting box. A first mating plate is arranged on the side of the mounting plate away from the connecting frame. A pop-up mechanism is fixedly installed between the first mating plate and the mounting plate. Above the first mating plate is a lithium battery.
[0010] When the lithium battery catches fire due to a short circuit, the pop-up mechanism will pop the lithium battery out of the battery compartment to prevent a fire from occurring inside the battery compartment, so that other lithium batteries do not catch fire simultaneously due to high temperature. Above the lithium battery is also provided with a contact and limit mechanism. The contact and limit mechanism can release the lithium battery and remove the limit, so that the lithium battery can move away from the battery compartment. A number of export ports are opened at both the front and rear ends of the battery compartment.
[0011] As a further improvement of this solution, the pop-up mechanism includes a moving plate. Two first elastic telescopic rods are fixedly connected between the moving plate and the mounting plate. Two second rotating arms are rotatably connected to both the front and rear ends of the moving plate. Two first rotating arms are rotatably connected to both the front and rear ends of the mounting plate. Each first rotating arm is rotatably connected to the bottom end of an adjacent second rotating arm. And a reset torsion spring is also fixedly connected between each first rotating arm and an adjacent second rotating arm.
[0012] As a further aspect of this solution, two connecting ropes are fixedly connected between the moving plate and the mounting plate. One end of the moving plate close to the mounting plate is fixedly connected with a second mating plate. A conical sleeve is fixedly connected to the bottom of the second mating plate. A push plate is arranged at the upper end of the first mating plate. A conductive metal rod is fixedly connected to the bottom of the push plate. The outer wall of the conductive metal rod is slidably connected to the inside of the first mating plate.
[0013] As a further aspect of this solution, a second spring is also fixedly connected between the push plate and the first mating plate. A connecting piece is fixedly connected to one end of the mounting plate close to the first mating plate. An arc-shaped wall is arranged on the outer wall of the connecting piece. The upper end of the arc-shaped wall abuts against the bottom of the conductive metal rod.
[0014] As a further aspect of this solution, an elastic telescopic tube is fixedly connected to the bottom of the lithium battery. The bottom of the elastic telescopic tube abuts against the upper end of the push plate. A rubber sleeve is fixedly connected to the bottom end of the inner wall of the elastic telescopic tube.
[0015] As a further aspect of this solution, high-expansion foam fire extinguishing agent is also filled inside the rubber sleeve. The upper end of the rubber sleeve is fixedly connected to the upper end of the elastic telescopic tube. An abutting plate is fixedly connected to one end of the mounting plate close to the moving plate. The bottom of the abutting plate abuts against the upper end of the elastic telescopic tube.
[0016] As a further aspect of this solution, the abutting and limiting mechanism includes a bottom ring. The bottom ring is fixedly connected to the upper end of the second mating plate. A moving ring is arranged at the upper end of the bottom ring. The moving ring and the bottom ring are fixedly connected by a plurality of connecting telescopic tubes. A plurality of the connecting telescopic tubes are communicated with each other through the bottom ring.
[0017] As a further aspect of this solution, a plurality of abutting telescopic arms are also fixedly connected to the inner wall of the bottom ring. One end of each abutting telescopic arm far from the inner wall of the bottom ring is fixedly connected with a conductive block. The conductive block and the bottom of the abutting telescopic arm both abut against the upper end of the lithium battery. The output end of the inner wall of the abutting telescopic arm is fixedly connected to the moving ring through a steel wire. The outer wall of the steel wire slidably penetrates through the inside of the abutting telescopic arm.
[0018] As a further aspect of this solution, an abutting block is fixedly connected to the bottom of the first rotating arm. A slider is slidably connected inside the second rotating arm. A corrugated pipe is also fixedly connected inside the second rotating arm. The upper end of the slider is fixedly connected to the bottom of the corrugated pipe.
[0019] As a further aspect of this solution, two transmission arms are rotatably connected between the slider and the abutting block through a rotating shaft. The corrugated pipe and the corresponding connecting pipe are fixedly connected and communicated through a pipeline.
[0020] Compared with the prior art, the beneficial effects of the present invention are:
[0021] 1. The high-expansion foam fire extinguishing agent filled inside the rubber sleeve will quickly heat up and expand when encountering situations such as lithium battery fires. It will comprehensively wrap the lithium battery. This process can effectively block the contact between the lithium battery and the outside air, play a good flame retardant role, significantly reduce the risk of fire spreading. Although it cannot achieve complete flame retardance, it greatly delays the combustion process. At the same time, the elastic telescopic tube will synchronously wrap the lithium battery. When the lithium battery is discharged due to the protection mechanism, the elastic telescopic tube can prevent the flame generated by the spontaneous combustion of the lithium battery from spraying outwards, avoiding greater harm to the surrounding environment. In addition, this design also provides convenience for the later recycling of lithium batteries, facilitating the staff to conduct centralized treatment and reuse, taking into account resource recycling while enhancing safety;
[0022] 2. When a single lithium battery shows signs of fire, the burning lithium battery can be quickly discharged from the inside of the installation box, which can effectively prevent the temperature inside the battery compartment from rising sharply due to the fire of a single lithium battery, thereby preventing the chain reaction of other lithium batteries being short-circuited caused by high temperature. At the same time, during the discharge process of the lithium battery, the device will synchronously cut off the power supply to the battery, fundamentally cutting off the energy supply of the fire source, greatly reducing the risk of fire spreading, and providing strong protection for the safety of the battery pack and surrounding equipment. Description of the Drawings
[0023] Figure 1 It is the front view of a new energy storage battery with a protection device;
[0024] Figure 2 It is the schematic diagram of the internal structure of the battery compartment of a new energy storage battery with a protection device;
[0025] Figure 3 It is the schematic diagram of the position structure of the mounting plate of a new energy storage battery with a protection device;
[0026] Figure 4 It is the schematic diagram of the internal structure of the installation box of a new energy storage battery with a protection device;
[0027] Figure 5 It is the schematic diagram of the position structure of the connecting rope of a new energy storage battery with a protection device;
[0028] Figure 6 It is the schematic diagram of the internal structure of the elastic telescopic tube of a new energy storage battery with a protection device;
[0029] Figure 7 It is the schematic diagram of the internal structure of the sliding opening of a new energy storage battery with a protection device;
[0030] Figure 8 It is the schematic diagram of the position structure of the connecting tube of a new energy storage battery with a protection device;
[0031] Figure 9 It is a schematic internal structure diagram of the abutting telescopic arm of a new energy storage battery with a protection device.
[0032] In the figure: 1. Battery cover; 2. Battery compartment; 3. Outlet; 4. Connecting frame; 5. Installation box; 6. Installation plate; 7. Moving plate; 8. First elastic telescopic rod; 9. First mating plate; 10. Lithium battery; 11. Second mating plate; 12. First rotating arm; 13. Abutting plate; 15. Connecting rope;
[0033] 16. Elastic telescopic tube; 17. Pushing plate; 19. Curved arc wall; 20. Connecting piece; 22. Second rotating arm; 23. Second spring; 24. Conductive metal rod; 25. Rubber sleeve; 26. Bellows; 27. Sliding opening; 28. Slide block; 29. Abutting block;
[0034] 30. Transmission arm; 31. Moving ring; 32. Bottom ring; 33. Connecting pipe; 34. Connecting telescopic tube; 35. Steel wire; 36. Abutting telescopic arm; 37. Conductive block; 38. Third spring; 39. Conical sleeve; 101. Ejecting mechanism; 201. Abutting limiting mechanism. Specific embodiments
[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0036] Embodiment 1: Please refer to Figures 1-4 As shown, a new energy storage battery with a protection device includes a battery compartment 2. The upper end of the battery compartment 2 is fixedly connected to a battery cover 1 by bolts. The bottom end of the inner wall of the battery compartment 2 is fixedly connected to a connecting frame 4. Both the front and rear ends of the connecting frame 4 are fixedly connected with a plurality of mounting plates 6. The plurality of mounting plates 6 are arranged in an array from left to right at the front and rear ends of the connecting frame 4. One end of each mounting plate 6 away from the connecting frame 4 is fixedly connected to an installation box 5. A first mating plate 9 is arranged on the side of the mounting plate 6 away from the connecting frame 4. An ejecting mechanism 101 is fixedly installed between the first mating plate 9 and the mounting plate 6. A lithium battery 10 is arranged above the first mating plate 9. When the lithium battery 10 has a short circuit and catches fire, the ejecting mechanism 101 will eject the lithium battery 10 from the inside of the battery compartment 2, avoiding catching fire inside the battery compartment 2 and causing other lithium batteries 10 to catch fire simultaneously due to high temperature. Abutting limiting mechanism 201 is also arranged above the lithium battery 10. The abutting limiting mechanism 201 can release and disengage the limit of the lithium battery 10, so that the lithium battery 10 can be far away from the battery compartment 2. A plurality of outlets 3 are opened at both the front and rear ends of the battery compartment 2;
[0037] Embodiment 2: Please refer to Figures 4-5 、 Figure 7 As shown in Figure 4 、 Figure 5 , the pop-up mechanism 101 includes a moving plate 7. Two first elastic telescopic rods 8 are fixedly connected between the moving plate 7 and the mounting plate 6. The two first elastic telescopic rods 8 are symmetrically distributed front and back between the moving plate 7 and the mounting plate 6. The two first elastic telescopic rods 8 can quickly reset the moving plate 7. Both the front and rear ends of the moving plate 7 are rotatably connected to two second rotating arms 22 through rotating shafts. Both the front and rear ends of the mounting plate 6 are rotatably connected to two first rotating arms 12 through rotating shafts. Each first rotating arm 12 is rotatably connected to the bottom end of an adjacent second rotating arm 22. Weight-reducing holes are provided on the outer walls of the first rotating arm 12 and the second rotating arm 22. A reset torsion spring is also fixedly connected between each first rotating arm 12 and an adjacent second rotating arm 22. (
[0038] In
[0039] Please refer to Figures 5-6, an elastic telescopic tube 16 is fixedly connected to the bottom of the lithium battery 10. The bottom of the elastic telescopic tube 16 abuts against the upper end of the push plate 17. A rubber sleeve 25 is fixedly connected to the bottom end of the inner wall of the elastic telescopic tube 16. The rubber sleeve 25 is made of rubber material, which has good corrosion resistance and high temperature resistance characteristics, and also has good ductility. The rubber sleeve 25 is also filled with a high-expansion foam fire extinguishing agent, the main components of which include a foaming agent, a foam stabilizer and water. Under normal conditions, it is stationary. Once encountering a fire source, the foam fire extinguishing agent will quickly foam and expand inside the extended elastic telescopic tube 16, which can isolate the air from the lithium battery 10 and has a certain flame retardant effect. The upper end of the rubber sleeve 25 is fixedly connected to the upper end of the elastic telescopic tube 16. One end of the mounting plate 6 close to the moving plate 7 is fixedly connected with an abutting plate 13, and the bottom of the abutting plate 13 abuts against the upper end of the elastic telescopic tube 16;
[0040] Please refer to Figure 4 , Figure 8 , Figure 9 As shown in the figure, the abutting and limiting mechanism 201 includes a bottom ring 32, and the bottom ring 32 is fixedly connected to the upper end of the second mating plate 11. A moving ring 31 is arranged on the upper end of the bottom ring 32. The moving ring 31 and the bottom ring 32 are fixedly connected by a plurality of connecting telescopic tubes 34. The plurality of connecting telescopic tubes 34 are circumferentially distributed between the moving ring 31 and the bottom ring 32. A plurality of connecting telescopic tubes 34 are communicated with each other through the bottom ring 32. A plurality of abutting telescopic arms 36 are also fixedly connected to the inner wall of the bottom ring 32. A third spring 38 is fixedly connected inside the abutting telescopic arm 36. The third spring 38 can drive the abutting telescopic arm 36 to quickly reset. The plurality of abutting telescopic arms 36 are also circumferentially distributed on the inner wall of the bottom ring 32. One end of each abutting telescopic arm 36 far from the inner wall of the bottom ring 32 is fixedly connected with a conductive block 37. The conductive block 37 and the bottom of the abutting telescopic arm 36 both abut against the upper end of the lithium battery 10. The second spring 23 drives the push plate 17 to push upward, and the push plate 17 will squeeze and move the lithium battery 10 through the elastic telescopic tube 16. At this time, the upper end of the lithium battery 10 abuts and squeezes against all the abutting telescopic arms 36 and the conductive blocks 37, forming a limit and fixation for the lithium battery 10. The output end of the inner wall of the abutting telescopic arm 36 and the moving ring 31 are fixedly connected by a steel wire 35, and the outer wall of the steel wire 35 slides through the inside of the abutting telescopic arm 36;
[0041] A contact block 29 is fixedly connected to the bottom of the first rotating arm 12. A slider 28 is slidably connected inside the second rotating arm 22. A bellows 26 is also fixedly connected inside the second rotating arm 22. The bellows 26 is also made of rubber material, and its properties and functions are the same as those of the rubber sleeve 25, so no more details will be described here. Specifically, a sliding opening 27 is formed inside the second rotating arm 22, and the bellows 26 is slidably connected to the inner wall of the sliding opening 27. Lubricating oil is applied to the inner wall of the sliding opening 27 and the outer wall of the slider 28. When the slider 28 slides on the inner wall of the sliding opening 27, the sliding opening 27 can limit the position of the slider 28, and also has a guiding effect, and can also improve the stability of the slider 28 during movement. The lubricating oil can also reduce the friction between the slider 28 and the inner wall of the sliding opening 27, thereby extending the service life of the sliding opening 27 and the slider 28;
[0042] The upper end of the slider 28 is fixedly connected to the bottom of the bellows 26. Two transmission arms 30 are rotatably connected between the slider 28 and the contact block 29 through a rotating shaft. The two transmission arms 30 are symmetrically distributed front and back between the slider 28 and the contact block 29. The bellows 26 and the corresponding connecting pipe 33 are fixedly connected and communicated through a pipeline. Specifically, when the first rotating arm 12 and the second rotating arm 22 rotate, the first rotating arm 12 drives the contact block 29 to move. The contact block 29 drives the slider 28 to slide on the inner wall of the sliding opening 27 through the transmission arm 30. The slider 28 will squeeze the bellows 26. The gas inside the bellows 26 will enter all the connecting telescopic pipes 34 through the connecting pipe 33. When all the connecting telescopic pipes 34 extend upward at the same time, the connecting telescopic pipes 34 will lift the moving ring 31 upward. The moving ring 31 will pull the steel wire 35. The steel wire 35 will drive the contact telescopic arm 36 to contract. The contraction of the contact telescopic arm 36 will drive the conductive block 37 to move. When the contact telescopic arm 36 and the conductive block 37 are separated from the upper end of the lithium battery 10 and do not contact it, the lithium battery 10 can be released.
[0043] The working principle of the present invention is as follows: When in use, when a certain lithium battery 10 inside the battery cover 1 is short-circuited and catches fire, the temperature inside the installation box 5 will rise at this time. The flame will burn the two connecting ropes 15. The first elastic telescopic rod 8 will extend, and at this time the second rotating arm 22 and the first rotating arm 12 will extend under the action of the reset torsion spring. At this time, the moving plate 7 will pass through the corresponding export 3. The moving plate 7 will drive the lithium battery 10 to move to the outer wall of the battery compartment 2. And during the movement of the moving plate 7, the moving plate 7 will drive the first matching plate 9 to move. When the first matching plate 9 moves, the first matching plate 9 will drive the conductive metal rod 24 to separate from the upper end of the arc-shaped wall 19, and the lithium battery 10 can be powered off;
[0044] Moreover, while the first mating plate 9 moves, it will also drive the upper end of the elastic telescopic tube 16 to disengage from the abutting plate 13, and the elastic telescopic tube 16 will extend. When the elastic telescopic tube 16 extends, it will also drive the rubber sleeve 25 to wrap the lithium battery 10. Since the lithium battery 10 naturally generates high temperature, it will burn through the inner wall of the rubber sleeve 25. The highly expandable foam fire extinguishing agent inside the rubber sleeve 25 will heat up and expand, wrapping the lithium battery 10, so that the lithium battery 10 can be blocked from the outside air, having a good flame retardant effect, but it cannot completely flame retard the lithium battery 10. The elastic telescopic tube 16 will wrap the lithium battery 10. When the elastic telescopic tube 16 and the lithium battery 10 are discharged, it can also prevent the flame ejection of the self-ignition of the lithium battery 10, and it is also convenient for the later recycling of the lithium battery 10. When the elastic telescopic tube 16 extends, its upper end will abut against the bottom of the abutting telescopic arm 36;
[0045] It should be noted that when the first rotating arm 12 and the second rotating arm 22 rotate, the first rotating arm 12 drives the abutting block 29 to move. The abutting block 29 drives the slider 28 to slide on the inner wall of the sliding opening 27 through the transmission arm 30. The slider 28 will squeeze the corrugated tube 26. The gas inside the corrugated tube 26 will enter all the connecting telescopic tubes 34 through the connecting pipe 33. When all the connecting telescopic tubes 34 extend upward at the same time, the connecting telescopic tubes 34 will lift the moving ring 31 upward. The moving ring 31 will pull the steel wire 35. The steel wire 35 will drive the abutting telescopic arm 36 to contract. The contraction of the abutting telescopic arm 36 will drive the conductive block 37 to move. When the upper end of the lithium battery 10 disengages from the abutment with all the abutting telescopic arms 36 and the conductive block 37, the second spring 23 instantly releases its elastic force, driving the push plate 17 to move upward. The push plate 17 will drive the elastic telescopic tube 16 and the lithium battery 10 to pass through the second mating plate 11. The connecting rope 15 can prevent the upper end of the elastic telescopic tube 16 from being stuck with the bottom edge of the second mating plate 11. The lithium battery 10 will be discharged from the installation box 5, avoiding the overheating of the temperature inside the battery compartment 2 caused by the fire of a single lithium battery 10, which may lead to the short circuit of other lithium batteries 10 together;
[0046] When the upper end of the lithium battery 10 disengages from the abutment with the conductive block 37, and the arc-shaped wall 19 disengages from the abutment with the conductive metal rod 24, the power can be cut off. Since the elastic telescopic tube 16, the second spring 23, and the push plate 17 are all made of metal, the power will be cut off.
[0047] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A new energy storage battery with a protective device, comprising a battery compartment, characterized in that: The upper end of the battery compartment is fixedly connected with a battery cover, the bottom end of the inner wall of the battery compartment is fixedly connected with a connecting frame, the front and rear ends of the connecting frame are fixedly connected with a plurality of mounting plates, one end of each mounting plate away from the connecting frame is fixedly connected with a mounting box, a first matching plate is arranged on the side of the mounting plate away from the connecting frame, a pop-up mechanism is fixedly installed between the first matching plate and the mounting plate, and a lithium battery is arranged above the first matching plate; When a lithium battery short-circuit catches fire, the ejection mechanism will eject the lithium battery from the battery compartment to prevent fire inside the battery compartment, which would cause other lithium batteries to catch fire at the same time due to high temperature. An abutment limit mechanism is also provided above the lithium battery to release the lithium battery and disengage it from the limit so that the lithium battery can be away from the battery compartment. Several outlets are provided at the front and rear ends of the battery compartment.
2. The new energy storage battery with a protective device according to claim 1, characterized in that: The pop-up mechanism includes a moving plate, two first elastic telescopic rods are fixedly connected between the moving plate and the mounting plate, the front and rear ends of the moving plate are rotatably connected to two second rotating arms, the front and rear ends of the mounting plate are rotatably connected to two first rotating arms, each of the first rotating arms is rotatably connected to the bottom end of an adjacent second rotating arm, and a reset torsion spring is also fixedly connected between each of the first rotating arms and an adjacent second rotating arm.
3. A new energy storage battery with a protective device according to claim 2, characterized in that: Two connecting ropes are fixedly connected between the movable plate and the mounting plate, a second matching plate is fixedly connected to one end of the movable plate close to the mounting plate, a conical sleeve is fixedly connected to the bottom of the second matching plate, a push plate is provided at the upper end of the first matching plate, a conductive metal rod is fixedly connected to the bottom of the push plate, and the outer wall of the conductive metal rod is slidably connected to the interior of the first matching plate.
4. The new energy storage battery with a protective device according to claim 3, characterized in that: A second spring is also fixedly connected between the push plate and the first matching plate, and a connecting piece is fixedly connected to one end of the mounting plate close to the first matching plate. The outer wall of the connecting piece is provided with a curved wall, and the upper end of the curved wall abuts against the bottom of the conductive metal rod.
5. The new energy storage battery with a protective device according to claim 1, characterized in that: The bottom of the lithium battery is fixedly connected with an elastic telescopic tube, the bottom of the elastic telescopic tube abuts against the upper end of the push plate, and the bottom end of the inner wall of the elastic telescopic tube is fixedly connected with a rubber sleeve.
6. The new energy storage battery with a protective device according to claim 5, characterized in that: The rubber sleeve is also filled with high-expansion foam fire extinguishing agent, the upper end of the rubber sleeve is fixedly connected to the upper end of the elastic telescopic tube, and the end of the mounting plate close to the movable plate is fixedly connected to an abutment plate, and the bottom of the abutment plate abuts against the upper end of the elastic telescopic tube.
7. The new energy storage battery with a protective device according to claim 1, characterized in that: The abutment limiting mechanism includes a bottom ring, which is fixedly connected to the upper end of the second matching plate. A movable ring is provided at the upper end of the bottom ring. The movable ring is fixedly connected to the bottom ring through a plurality of connecting telescopic tubes, and the plurality of connecting telescopic tubes are connected through the bottom ring.
8. The new energy storage battery with a protective device according to claim 7, characterized in that: The inner wall of the bottom ring is also fixedly connected to a plurality of abutting telescopic arms, and each of the abutting telescopic arms is fixedly connected to a conductive block at one end away from the inner wall of the bottom ring. The conductive block and the bottom of the abutting telescopic arm are abutted against the upper end of the lithium battery, and the output end of the inner wall of the abutting telescopic arm is fixedly connected to the movable ring by a steel wire, and the outer wall of the steel wire is slidably penetrated into the interior of the abutting telescopic arm.
9. The new energy storage battery with a protective device according to claim 2, characterized in that: The bottom of the first rotating arm is fixedly connected with an abutment block, the interior of the second rotating arm is slidably connected with a slider, and the interior of the second rotating arm is also fixedly connected with a bellows, and the upper end of the slider is fixedly connected to the bottom of the bellows.
10. The new energy storage battery with a protective device according to claim 9, characterized in that: The sliding block and the abutment block are rotatably connected with two transmission arms via a rotating shaft, and the bellows and the corresponding connecting pipe are fixedly connected via a pipeline.
Citation Information
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New energy storage battery protection device capable of preventing spontaneous combustion
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