High-rate lithium battery capable of realizing high-strength starting

Abstract

The utility model discloses a high-magnification lithium battery capable of realizing high-strength starting, which belongs to the technical field of high-strength starting of lithium batteries and comprises a shell, a plurality of lithium battery bodies, a U-shaped partition plate, a flame-retardant fire extinguishing component and a linked switch component, the lithium battery bodies are mounted in the shell, and the flame-retardant fire extinguishing component and the linked switch component are mounted on the shell. According to the high-magnification lithium battery capable of achieving high-strength starting, ventilation between the interior and the exterior of the shell is achieved through the ventilation grooves, heat emitted by the lithium battery body can be conveniently dissipated in time, and when a fire breaks out, the ventilation grooves are blocked through the U-shaped partition plates, so that the heat dissipation efficiency is improved; according to the flame-retardant and fire-extinguishing assembly, fire-fighting sand is laid on the top of the lithium battery body, flames are extinguished, explosion is prevented, and the problems that in the high-strength starting process of an existing high-rate lithium battery, heat cannot be dissipated in time easily, good fireproof and flame-retardant performance is not achieved, and potential safety hazards exist are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-intensity starting of lithium batteries, in particular to a high-rate lithium battery capable of achieving high-intensity starting. Background Art

[0002] High-rate batteries generally refer to lithium batteries. Lithium-ion batteries are a type of high-rate battery that relies on the movement of lithium ions between the positive and negative electrodes to work. Batteries that generally use materials containing lithium as electrodes are the representative of modern high-performance batteries. Lithium-ion batteries have high energy density, high average output voltage, low self-discharge, no memory effect, excellent cycle performance, fast charge and discharge, high charging efficiency, high output power, long service life, and do not contain toxic and harmful substances. They are called green batteries.

[0003] During the high-intensity startup process, high-rate lithium batteries will generate a lot of heat in a short period of time due to the high discharge rate. If the heat cannot be dissipated in time, it is easy to cause a fire and burn the lithium battery due to the high temperature inside the battery. The current common heat dissipation solution is to open ventilation slots in the battery shell to remove excess heat through circulating air, but this solution does not have good fire extinguishing and flame retardant properties. The ventilation slots can easily make it difficult to extinguish a fire, and there is even a risk of explosion, causing serious safety hazards. Utility Model Content

[0004] The utility model aims to provide a high-rate lithium battery which can realize high-intensity starting, can dissipate heat in time, and has good fire-retardant performance.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Provided is a high-rate lithium battery capable of achieving high-intensity starting, comprising a shell and a plurality of lithium battery bodies, wherein the lithium battery bodies are installed in the shell, and further comprising a U-shaped partition, a flame retardant fire extinguishing component and a linkage switch component, wherein the flame retardant fire extinguishing component and the linkage component are both installed on the shell, the flame retardant fire extinguishing component is used to extinguish a fire of the lithium battery body, and the linkage component is used to move the flame retardant fire extinguishing component and the U-shaped partition simultaneously to isolate the lithium battery body from the outside, the shell comprising a base, an outer shell and a cover plate, the outer top of the base is plugged in with the bottom of the outer shell, a groove is provided on the top of the base, the groove is plugged in with the bottom of the lithium battery body, one end of the cover plate is hinged to the top of the outer shell by a hinge, a plurality of ventilation slots are provided on both sides of the outer shell, the U-shaped partition is slidably connected to the outer shell, the bottom of the U-shaped partition and the input end of the flame retardant fire extinguishing component are both in conflict with the output end of the linkage switch component.

[0007] Furthermore, the flame retardant fire extinguishing assembly includes a pair of pads, a plug rod and a first spring. The pads are rotatably installed between the inner walls on both sides of the shell. The two pads are fitted to each other. The pads are located at the top of the ventilation slot. One end of one of the pads is provided with a circular groove. One end of the plug rod passes through the other pad and is plugged into the circular groove. The plug rod is the input end of the flame retardant fire extinguishing assembly. One end of the first spring is fixedly connected to the plug rod. The first spring is used to provide horizontal thrust to the plug rod.

[0008] Furthermore, the flame retardant fire extinguishing assembly also includes a second spring, one end of the second spring is fixedly connected to the inner wall of the circular groove, the inserted rod includes a metal rod and a T-shaped rod, one end of the metal rod is in conflict with the second spring, the other end of the metal rod is in conflict with the T-shaped rod, one end of the T-shaped rod passes through the side wall and the pad of the shell and is slidably connected thereto, the first spring is sleeved on the outer periphery of the T-shaped rod, one end of the first spring is fixedly connected to the T-shaped rod, and the other end of the first spring is in conflict with the side wall of the shell.

[0009] Furthermore, the linkage switch assembly includes a rotating shaft, a pair of push rods, a gear, a rack, a connecting rod and a button. The two push rods are symmetrically distributed on both sides of the rotating shaft and fixedly connected to the rotating shaft. The push rod is the output end of the linkage assembly. A circular hole is opened at one end of the shell, and an empty groove is opened inside the shell. The empty groove is connected to the circular hole. One end of the rotating shaft passes through the circular hole and is coaxially connected to the gear. The gear is meshed with the rack. The top of the rack is fixedly connected to the bottom of the connecting rod, the connecting rod passes through the top of the shell and is slidably connected to it, and the top of the connecting rod is fixedly connected to the bottom of the button.

[0010] Furthermore, the linkage switch assembly also includes a pair of spherical clamping blocks, which are fixedly connected to the side walls of the rotating shaft, and two pairs of clamping grooves are opened on the inner wall of the circular hole, which cooperate with the spherical clamping blocks.

[0011] Furthermore, the linkage switch assembly also includes a pair of semicircular plates, a rotating rod, a pressure plate and a slider, wherein the top of one semicircular plate is fixedly connected to the bottom of the button, the bottom of the other semicircular plate is fixedly connected to one end of the top of the pressure plate, the two ends of the rotating rod are respectively rotatably connected to the two semicircular plates, the top of the slider is fixedly connected to one end of the bottom of the pressure plate, and a sliding groove is opened on the top of the shell, and the sliding groove is slidably connected to the slider.

[0012] Beneficial effects of the utility model: The utility model provides ventilation slots, U-shaped baffles and flame retardant fire extinguishing components. When the high-rate lithium battery is started at high intensity, the ventilation slots are used to circulate air inside and outside the shell, so that the heat emitted by the lithium battery body can be dissipated in a timely manner. The ventilation slots are close to both sides of the lithium battery body, which can expand its contact area with the air and further accelerate heat dissipation. In addition, when a fire occurs, the linkage switch component is separated from the flame retardant fire extinguishing component and the U-shaped baffle. The U-shaped baffle slides down and blocks the ventilation slots, isolating the inside of the shell from the outside to prevent air from entering, thereby preventing further combustion. Subsequently, the flame retardant fire extinguishing component spreads fire sand on the top of the lithium battery body to further extinguish the flame, prevent explosions, and improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 5 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 6 It is a schematic diagram of the overall structure of the utility model.

[0020] In the figure:

[0021] 1. Shell; 10. Base; 100. Groove; 11. Shell; 110. Ventilation slot; 111. Round hole; 112. Card slot; 113. Empty slot; 114. Slide slot; 12. Cover plate; 13. Lithium battery body; 14. U-shaped partition;

[0022] 2. Flame retardant fire extinguishing assembly; 20. Pad; 200. Round groove; 21. Insert rod; 22. Metal rod; 23. T-shaped rod; 24. First spring; 25. Second spring;

[0023] 3. Linkage switch assembly; 30. Rotating shaft; 31. Abutment rod; 32. Gear; 33. Rack; 34. Connecting rod; 35. Button; 36. Spherical block; 37. Semicircular plate; 38. Rotating rod; 39. Pressure plate; 390. Slider. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0025] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0026] Reference Figures 1 to 6 A high-rate lithium battery capable of achieving high-intensity starting is shown, comprising a shell 1 and a plurality of lithium battery bodies 13, the lithium battery bodies 13 being installed in the shell 1, and also comprising a U-shaped partition 14, a flame retardant and fire extinguishing assembly 2 and a linkage switch assembly 3, the flame retardant and fire extinguishing assembly 2 and the linkage assembly being both installed on the shell 1, the flame retardant and fire extinguishing assembly 2 being used to extinguish a fire of the lithium battery body 13, the linkage assembly being used to move the flame retardant and fire extinguishing assembly 2 and the U-shaped partition 14 simultaneously to isolate the lithium battery body 13 from the outside, the shell 1 comprising a base 10, an outer shell 11 and a cover plate 12, the outer top of the base 10 being plugged into and matched with the bottom of the outer shell 11, a groove 100 being provided at the top of the base 10, the groove 100 being plugged into and matched with the bottom of the lithium battery body 13, the bottom of the lithium battery body 13 being inserted into the groove 100 on the base 10, and then the outer shell 11 being moved so that its bottom is plugged into the top of the base 10, thereby installing the lithium battery body 13 inside the shell 1. One end of the cover plate 12 is hinged to the top of the shell 11 through a hinge. Opening the cover plate 12 can facilitate adding fire sand to the inside of the shell 11. Multiple ventilation slots 110 are provided on both sides of the shell 11. Through the ventilation slots 110, the air inside and outside the shell 1 can be circulated, which is convenient for timely dissipation of the heat emitted by the lithium battery body 13. The ventilation slots 110 are close to both sides of the lithium battery body 13, which can expand its contact area with the air and further accelerate the heat dissipation. The U-shaped partition 14 is slidably connected to the outer periphery of the shell 11. The bottom of the U-shaped partition 14 and the input end of the flame retardant and fire extinguishing component 2 are in conflict with the output end of the linkage switch component 3. When a fire occurs, the linkage switch component 3 is separated from the flame retardant and fire extinguishing component 2 and the U-shaped partition 14. The U-shaped partition 14 slides down and blocks the ventilation slots 110, isolating the inside of the shell 1 from the outside, preventing air from entering, thereby preventing continued combustion, and then the flame retardant and fire extinguishing component 2 spreads the fire sand on the top of the lithium battery body 13 to further extinguish the flame, prevent explosion, and improve safety.

[0027] The flame retardant fire extinguishing assembly 2 includes a pair of pads 20, a plug rod 21 and a first spring 24. The pads 20 are rotatably installed between the inner walls of the housing 11 on both sides. The two pads 20 fit each other. The pads 20 are located at the top of the ventilation slot 110. The inner space of the housing 11 is divided into two parts, the top part is used to store fire sand, and the bottom part is used to place the lithium battery body 13. A circular groove 200 is opened at one end of one of the pads 20, and one end of the plug rod 21 passes through the other pad 20 and is plugged into the circular groove 200. The plug rod 21 is the input end of the flame retardant fire extinguishing assembly 2. One end of the first spring 24 is fixedly connected to the plug rod 21. The first spring 24 is used to provide horizontal thrust to the plug rod 21. When the rod 21 is inserted into the circular groove 200, the first spring 24 is compressed, and the two pads 20 are connected and supported by the rod 21. When a fire occurs, the first spring 24 rebounds and pushes the rod 21 out of the circular groove 200. At this time, the pad 20 quickly rotates ninety degrees to the bottom under the action of gravity, thereby quickly covering the top of the lithium battery body 13 with fire sand.

[0028] The flame retardant fire extinguishing assembly 2 also includes a second spring 25, one end of which is fixedly connected to the inner wall of the circular groove 200, and the plug rod 21 includes a metal rod 22 and a T-shaped rod 23, one end of the metal rod 22 is in conflict with the second spring 25, and the other end of the metal rod 22 is in conflict with the T-shaped rod 23, one end of the T-shaped rod 23 passes through the side wall of the shell 1 and the pad 20 and is slidably connected thereto, and the first spring 24 is sleeved on the outer periphery of the T-shaped rod 23, one end of the first spring 24 is fixedly connected to the T-shaped rod 23, and the other end of the first spring 24 is in conflict with the side wall of the shell 11. When the linkage switch assembly 3 is separated from the plug rod 21, the first spring 24 rebounds and pushes the T-shaped rod 23 to pop out of the shell 11, and then the second spring 25 rebounds and pushes the metal rod 22 to slide out of the circular groove 200, and when the T-shaped rod 23 is separated from the pad 20, the metal rod 22 just separates from the smoke circular groove 200, and at this time the pad 20 starts to rotate, thereby preventing the metal rod 22 from being inserted outside and hindering the rotation of the pad 20.

[0029] The linkage switch assembly 3 includes a rotating shaft 30, a pair of push rods 31, a gear 32, a rack 33, a connecting rod 34 and a button 35. The two push rods 31 are symmetrically distributed on both sides of the rotating shaft 30 and are fixedly connected to the rotating shaft 30. The push rod 31 is the output end of the linkage assembly. A circular hole 111 is opened at one end of the shell 11, and an empty groove 113 is opened inside the shell 11. The empty groove 113 is connected to the circular hole 111. One end of the rotating shaft 30 passes through the circular hole 111 and is coaxially connected to the gear 32. The gear 32 is meshed with the rack 33. The top of the rack 33 is fixedly connected to the bottom of the connecting rod 34. The connecting rod 34 passes through the top of the shell 1 and is slidably connected thereto. The top of the connecting rod 34 is fixedly connected to the bottom of the button 35. When a fire occurs, the button 35 is immediately pressed to push the rack 33 downward through the connecting rod 34, and the meshing transmission between the rack 33 and the gear 32 drives the rotating shaft 30 to rotate, so that the two push rods 31 rotate with the rotating shaft 30, and the two push rods 31 are separated from the U-shaped baffle and the T-shaped rod 23 respectively, and then the U-shaped baffle falls, and the flame retardant fire extinguishing assembly 2 sprinkles fire sand to extinguish the fire. Since the falling speed of the U-shaped baffle is faster than the rotation speed of the pad 20, the U-shaped baffle can prevent the fire sand from flowing out of the ventilation slot 110 after it falls.

[0030] The linkage switch assembly 3 also includes a pair of spherical blocks 36, which are fixedly connected to the side wall of the rotating shaft 30. Two pairs of slots 112 are provided on the inner wall of the circular hole 111, and the slots 112 are engaged with the spherical blocks 36. When the lithium battery body 13 works normally, the output end of the linkage switch assembly 3 and the U-shaped baffle and the T-shaped rod 23 conflict with each other. At this time, the two spherical blocks 36 are engaged with one pair of slots 112 to prevent the rotating shaft 30 from rotating, so as to prevent the connecting rod 34 from sliding down under the action of gravity and driving the rotating shaft 30 to rotate, resulting in the output end of the linkage switch assembly 3 being separated from the U-shaped baffle and the T-shaped rod 23. When the button 35 is pressed, the rotating shaft 30 rotates the two spherical blocks 36 to engage with the other two slots 112 to fix the position of the abutment rod 31.

[0031] The linkage switch assembly 3 further includes a pair of semicircular plates 37, a rotating rod 38, a pressing plate 39 and a slider 390, wherein the top of one of the semicircular plates 37 is fixedly connected to the bottom of the button 35, the bottom of the other semicircular plate 37 is fixedly connected to one end of the top of the pressing plate 39, the two ends of the rotating rod 38 are respectively rotatably connected to the two semicircular plates 37, the top of the slider 390 is fixedly connected to one end of the bottom of the pressing plate 39, and a slide groove 114 is provided on the top of the housing 11, and the slide groove 114 is slidably connected to the slider 390. When the button 35 is pressed, the rotating rod 38 rotates between the two semicircular plates 37, pushing the pressing plate 39 to move, and the slider 390 slides in the slide groove 114, so that one end of the pressing plate 39 moves to the top of the cover plate 12, thereby pressing the cover plate 12 so that it cannot be opened, and preventing the smoke generated by the combustion from floating upward.

[0032] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A high-rate lithium battery capable of achieving high-intensity starting, comprising a housing (1) and a plurality of lithium battery bodies (13), wherein the lithium battery bodies (13) are installed in the housing (1), characterized in that: The invention also comprises a U-shaped partition (14), a flame retardant fire extinguishing assembly (2) and a linkage switch assembly (3). The flame retardant fire extinguishing assembly (2) and the linkage assembly are both mounted on the housing (1). The flame retardant fire extinguishing assembly (2) is used to extinguish a fire of a lithium battery body (13). The linkage assembly is used to move the flame retardant fire extinguishing assembly (2) and the U-shaped partition (14) simultaneously to isolate the lithium battery body (13) from the outside. The housing (1) comprises a base (10), an outer shell (11) and a cover plate (12). The outer top of the base (10) is connected to the outer shell. The bottom of the housing (11) is plugged in and matched, the top of the base (10) is provided with a groove (100), the groove (100) is plugged in and matched with the bottom of the lithium battery body (13), one end of the cover plate (12) is hinged to the top of the housing (11) through a hinge, a plurality of ventilation grooves (110) are provided on both sides of the housing (11), the U-shaped partition (14) is slidably connected to the outer periphery of the housing (11), and the bottom of the U-shaped partition (14) and the input end of the flame retardant and fire extinguishing component (2) are in conflict with the output end of the linkage switch component (3).

2. A high-rate lithium battery capable of achieving high-intensity starting according to claim 1, characterized in that: The flame retardant fire extinguishing assembly (2) comprises a pair of pads (20), a plug rod (21) and a first spring (24); the pads (20) are rotatably mounted between the inner walls of the outer shell (11) on both sides; the two pads (20) are fitted to each other; the pads (20) are located at the top of the ventilation slot (110); one end of one of the pads (20) is provided with a circular groove (200); one end of the plug rod (21) passes through the other pad (20) and is plugged into the circular groove (200); the plug rod (21) is the input end of the flame retardant fire extinguishing assembly (2); one end of the first spring (24) is fixedly connected to the plug rod (21); the first spring (24) is used to provide a horizontal thrust to the plug rod (21).

3. A high-rate lithium battery capable of achieving high-intensity starting according to claim 2, characterized in that: The flame retardant fire extinguishing assembly (2) further comprises a second spring (25), one end of the second spring (25) being fixedly connected to the inner wall of the circular groove (200), the insertion rod (21) comprising a metal rod (22) and a T-shaped rod (23), one end of the metal rod (22) being in contact with the second spring (25), the other end of the metal rod (22) being in contact with the T-shaped rod (23), one end of the T-shaped rod (23) passing through the side wall of the shell (1) and the pad (20) and being slidably connected thereto, the first spring (24) being sleeved on the outer periphery of the T-shaped rod (23), one end of the first spring (24) being fixedly connected to the T-shaped rod (23), the other end of the first spring (24) being in contact with the side wall of the shell (11).

4. A high-rate lithium battery capable of achieving high-intensity starting according to claim 1, characterized in that: The linkage switch assembly (3) comprises a rotating shaft (30), a pair of push rods (31), a gear (32), a rack (33), a connecting rod (34) and a button (35). The two push rods (31) are symmetrically distributed on both sides of the rotating shaft (30) and are fixedly connected to the rotating shaft (30). The push rod (31) is the output end of the linkage assembly. A circular hole (111) is provided at one end of the housing (11). An empty groove (113) is provided inside the housing (11). The empty groove (113) is communicated with the circular hole (111). One end of the rotating shaft (30) passes through the circular hole (111) and is coaxially connected to the gear (32). The gear (32) is meshed with the rack (33). The top of the rack (33) is fixedly connected to the bottom of the connecting rod (34). The connecting rod (34) passes through the top of the housing (1) and is slidably connected thereto. The top of the connecting rod (34) is fixedly connected to the bottom of the button (35).

5. A high-rate lithium battery capable of achieving high-intensity starting according to claim 4, characterized in that: The linkage switch assembly (3) further comprises a pair of spherical clamping blocks (36), the spherical clamping blocks (36) being fixedly connected to the side wall of the rotating shaft (30), and two pairs of clamping grooves (112) are formed on the inner wall of the circular hole (111), and the clamping grooves (112) are engaged with the spherical clamping blocks (36).

6. A high-rate lithium battery capable of achieving high-intensity starting according to claim 5, characterized in that: The linkage switch assembly (3) further comprises a pair of semicircular plates (37), a rotating rod (38), a pressing plate (39) and a sliding block (390), wherein the top of one of the semicircular plates (37) is fixedly connected to the bottom of the button (35), the bottom of the other semicircular plate (37) is fixedly connected to one end of the top of the pressing plate (39), the two ends of the rotating rod (38) are respectively rotatably connected to the two semicircular plates (37), the top of the sliding block (390) is fixedly connected to one end of the bottom of the pressing plate (39), and a sliding groove (114) is provided on the top of the housing (11), and the sliding groove (114) is slidably connected to the sliding block (390).

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