A fast charging and discharging lithium-ion battery

Abstract

The utility model provides a fast-charged and discharged lithium-ion battery, comprising a battery body and a stainless steel protective shell, wherein a fast-charging female interface is installed on the battery body, the battery body is placed inside the protective shell, a heat-conducting aluminum plate is arranged between the battery body and the protective shell, heat-conducting silicone grease is applied between the heat-conducting aluminum plate and the battery body, a plurality of heat dissipation fins are fixed at intervals on the outer surface of the protective shell, a sealing cover is arranged directly above the protective shell, a limiting component is arranged between the sealing cover and the protective shell, the top of the protective shell is square and has a pair of first slide grooves and a pair of second slide grooves, the bidirectional screw rod passes through the slider, and the bidirectional screw rod is threadedly connected to the slider. The utility model solves the problem that the existing lithium battery pack only uses a heat dissipation fan to dissipate heat during heat dissipation, and the actual heat dissipation effect is general.

Description

Technical Field

[0001] The utility model relates to the field of lithium batteries, in particular to a fast-charging and -discharging lithium-ion battery. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. Due to the extremely active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. Lithium batteries are widely used due to their high energy density, light weight, and long life.

[0003] At present, when lithium batteries are discharged, chemical reactions will occur inside the battery, generating a large amount of heat energy, causing the battery temperature to rise. Lithium battery packs are composed of multiple lithium batteries. In order not to affect the service life of the lithium battery pack, cooling fans are generally used for heat dissipation (especially when the lithium battery is quickly charged).

[0004] However, the cooling fan can only speed up the flow of air around the surface of the lithium battery pack, and cannot dissipate the heat between the lithium batteries. The actual cooling effect of simply using the cooling fan to dissipate heat is average.

[0005] Therefore, it is necessary to provide a new fast-charging and -discharging lithium-ion battery to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a fast-charging and -discharging lithium-ion battery, which solves the problem that the existing lithium battery pack only uses a cooling fan to dissipate heat during heat dissipation, and the actual heat dissipation effect is average.

[0007] The fast-charging and discharging lithium-ion battery provided by the utility model comprises a battery body and a stainless steel protective shell, wherein a fast-charging female interface is installed on the battery body, the battery body is placed inside the protective shell, a heat-conducting aluminum plate is arranged between the battery body and the protective shell, and heat-conducting silicone grease is applied between the heat-conducting aluminum plate and the battery body;

[0008] A plurality of heat dissipation fins are fixed at intervals on the outer surface of the protective shell.

[0009] In a preferred embodiment, the fast charging female interface is a three-vertical interface in the shape of a triangle, and the heat sink fins are made of copper material.

[0010] In a preferred embodiment, a sealing cover is arranged directly above the protective shell, and a limiting component is arranged between the sealing cover and the protective shell;

[0011] The limit assembly includes a bidirectional screw rod, a slider and a fixed column. The top of the protective shell is square and has a pair of first slide grooves and a pair of second slide grooves. The sliders are slidably arranged inside the first slide groove and the second slide groove. The bidirectional screw rod is movably arranged between the first slide groove and the second slide groove through a bearing. The bidirectional screw rod passes through the slider and is threadedly connected to the slider.

[0012] The fixing column is fixed on one side of the sliding block, the bottom of the sealing cover is square and has a placement groove, and a limiting groove is provided on the wall of the placement groove, and the limiting groove corresponds to the position of the fixing column.

[0013] In a preferred embodiment, the limiting groove matches the size of the fixing column, a silicone sealing pad is arranged on the top of the protective shell, and the bidirectional screw rod passes through the protective shell and is installed with a hexagonal block.

[0014] In a preferred embodiment, a through slot is provided on the sealing cover, a protective frame is fixed to the through slot, and a dustproof plug made of rubber is provided on one side of the protective frame.

[0015] In a preferred embodiment, a handle is installed on the protection frame.

[0016] Beneficial effects of the utility model:

[0017] 1. When charging the battery, the user can open the dust plug, and then connect the fast charging male interface through the protective frame and the through slot to the fast charging female interface. During the charging process, the heat generated by the battery will be transferred to the thermal conductive aluminum plate through the thermal conductive silicone grease, and then transferred from the thermal conductive aluminum plate to the heat dissipation fins. With the help of an external cooling fan, the heat can be quickly dissipated to avoid the battery spontaneous combustion caused by a large amount of heat accumulation during charging.

[0018] 2. When the battery body needs to be inspected, the staff only needs to use a wrench to rotate the hexagonal block to drive the bidirectional screw to rotate. Under the action of the bidirectional screw, the slider inside the first slide groove and the slider inside the second slide groove move away from each other until the fixed column is disengaged from the limit groove. At this time, the sealing cover can be opened. The installation is similar. There is no need to screw a large number of screws to connect them together. The disassembly speed is fast and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a fast-charging and discharging lithium-ion battery provided by the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of shown;

[0021] Figure 3 A schematic diagram of the structure of the heat-conducting aluminum plate provided by the utility model;

[0022] Figure 4 This is a structural schematic diagram of the sealing cover provided by the utility model.

[0023] Numbers in the figure: 1. Battery body; 2. Fast charging female interface; 3. Protective shell; 4. Thermal conductive aluminum plate; 5. Thermal conductive silicone grease; 6. Heat sink fins; 7. Sealing cover; 8. Bidirectional screw rod; 9. Slider; 10. Fixed column; 11. First slide groove; 12. Second slide groove; 13. Placement groove; 14. Limiting groove; 15. Silicone sealing pad; 16. Hexagonal block; 17. Through groove; 18. Protective frame; 19. Dust-proof plug; 20. Handle. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 as well as Figure 4 ,in Figure 1 This is a schematic diagram of the overall structure of a fast-charging and discharging lithium-ion battery provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the enlarged structure of shown; Figure 3 A schematic diagram of the structure of the heat-conducting aluminum plate provided by the utility model; Figure 4 This is a structural schematic diagram of the sealing cover provided by the utility model.

[0026] In the specific implementation process, Figure 1-Figure 4 As shown, it includes a battery body 1 and a stainless steel protective shell 3, a fast charging female interface 2 is installed on the battery body 1, the battery body 1 is placed inside the protective shell 3, a heat-conducting aluminum plate 4 is arranged between the battery body 1 and the protective shell 3, and thermal conductive silicone grease 5 is applied between the heat-conducting aluminum plate 4 and the battery body 1. A plurality of heat dissipation fins 6 are fixed at intervals on the outer surface of the protective shell 3. The fast charging female interface 2 is a three-vertical interface in a shape of a triangle, which has high adaptability. The heat dissipation fins 6 are made of copper material, which has low cost and excellent thermal conductivity.

[0027] A sealing cover 7 is arranged directly above the protective shell 3, and a limit position assembly is arranged between the sealing cover 7 and the protective shell 3. The limit position assembly includes a bidirectional screw rod 8, a slider 9 and a fixed column 10. The top of the protective shell 3 is square and has a pair of first slide grooves 11 and a pair of second slide grooves 12. Slide blocks 9 are slidably arranged inside the first slide groove 11 and the second slide groove 12. A bidirectional screw rod 8 is movably arranged between the first slide groove 11 and the second slide groove 12 through a bearing. The bidirectional screw rod 8 passes through the slider 9, and the bidirectional screw rod 8 is threadedly connected to the slider 9. A fixed column 10 is fixed on one side of the slider 9. The bottom of the sealing cover 7 is square and has a placement groove 13. The placement groove 13 is large. The size of the slider 9 is larger than that of the slider 9, ensuring that the slider 9 can be located inside the placement groove 13. A limiting groove 14 is provided on the groove wall of the placement groove 13, and the limiting groove 14 corresponds to the position of the fixing column 10. When the battery body 1 needs to be repaired, the staff only needs to use a wrench to rotate the hexagonal block 16 to drive the bidirectional screw rod 8 to rotate. Under the action of the bidirectional screw rod 8, the slider 9 inside the first slide groove 11 and the slider 9 inside the second slide groove 12 move away from each other until the fixing column 10 is disengaged from the limiting groove 14. At this time, the sealing cover 7 can be opened, and the installation is similar. There is no need to screw a large number of screws to connect them together. The disassembly speed is fast and the operation is simple and convenient.

[0028] The limiting groove 14 matches the size of the fixing column 10. A silicone sealing pad 15 is provided on the top of the protective shell 3, so that the sealing cover 7 fits tightly with the protective shell 3 to prevent water from entering the protective shell 3 when it rains. The bidirectional screw rod 8 passes through the protective shell 3 and is installed with a hexagonal block 16 to facilitate the staff to rotate the bidirectional screw rod 8. A handle 20 is installed on the protective frame 18 to facilitate the staff to move the battery body 1.

[0029] A through slot 17 is provided on the sealing cover 7, and a protective frame 18 is fixed at the through slot 17. A dust-proof plug 19 made of rubber is provided on one side of the protective frame 18. When not charging, the dust-proof plug 19 can be inserted into the protective frame 18 to prevent dust from entering the protective shell 3.

[0030] Working principle of the utility model: when charging the battery body 1, the user can open the dust plug 19, and then connect the fast charging male interface through the protection frame 18 and the through slot 17 to the fast charging female interface 2. During the charging process, the heat generated by the battery body 1 will be transmitted to the heat conductive aluminum plate 4 through the thermal conductive silicone grease 5, and then transferred from the heat conductive aluminum plate 4 to the heat dissipation fins 6, and the heat dissipation can be quickly performed in conjunction with the external heat dissipation fan;

[0031] When the battery body 1 needs to be inspected, the staff only needs to use a wrench to rotate the hexagonal block 16 to drive the bidirectional screw 8 to rotate. Under the action of the bidirectional screw 8, the slider 9 inside the first slide groove 11 and the slider 9 inside the second slide groove 12 move away from each other until the fixing column 10 is disengaged from the limiting groove 14. At this time, the sealing cover 7 can be opened. The installation is similar. There is no need to screw a large number of screws to connect them together. The disassembly speed is fast and the operation is simple and convenient.

[0032] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fast-charging and discharging lithium-ion battery, comprising a battery body (1) and a stainless steel protective shell (3), characterized in that: The battery body (1) is provided with a quick charging female interface (2), the battery body (1) is placed inside the protective shell (3), a heat-conducting aluminum plate (4) is provided between the battery body (1) and the protective shell (3), and heat-conducting silicone grease (5) is applied between the heat-conducting aluminum plate (4) and the battery body (1); A plurality of heat dissipation fins (6) are fixed at intervals on the outer surface of the protective shell (3).

2. The fast charge and discharge lithium ion battery according to claim 1, characterized in that: The fast charging female interface (2) is a three-vertical interface in the shape of a triangle, and the heat dissipation fins (6) are made of copper.

3. The fast charge and discharge lithium ion battery according to claim 2, characterized in that: A sealing cover (7) is arranged directly above the protective shell (3), and a limiting component is arranged between the sealing cover (7) and the protective shell (3); The limit assembly comprises a bidirectional screw rod (8), a slider (9) and a fixed column (10); the top of the protective shell (3) is square and is provided with a pair of first slide grooves (11) and a pair of second slide grooves (12); the sliders (9) are slidably arranged inside the first slide grooves (11) and the second slide grooves (12); the bidirectional screw rod (8) is movably arranged between the first slide groove (11) and the second slide groove (12) via a bearing; the bidirectional screw rod (8) passes through the slider (9), and the bidirectional screw rod (8) is threadedly connected to the slider (9); The fixing column (10) is fixed to one side of the sliding block (9), and the bottom of the sealing cover (7) is provided with a placement groove (13) in a square shape, and a limiting groove (14) is provided on the groove wall of the placement groove (13), and the limiting groove (14) corresponds to the position of the fixing column (10).

4. The fast charge and discharge lithium ion battery according to claim 3, characterized in that: The limiting groove (14) matches the size of the fixing column (10), a silicone sealing pad (15) is arranged on the top of the protective shell (3), and the bidirectional screw rod (8) passes through the protective shell (3) and is installed with a hexagonal block (16).

5. The fast charge and discharge lithium ion battery according to claim 4, characterized in that: The sealing cover (7) is provided with a through slot (17), a protective frame (18) is fixed to the through slot (17), and a dustproof plug (19) made of rubber is provided on one side of the protective frame (18).

6. The fast charge and discharge lithium ion battery according to claim 5, characterized in that: A handle (20) is installed on the protection frame (18).

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