Lithium battery with charging protection structure

Abstract

The invention discloses a lithium battery with a charging protection structure, and relates to the technical field of lithium batteries, the lithium battery comprises a shell, the top of the shell is fixedly provided with a lifting handle, the top of the shell is provided with a charging port, the shell is internally provided with battery equipment, and the shell is internally provided with a cooling device, the cooling device comprises a reciprocating screw rod, a first sliding block, a shielding plate, a second sliding block, a rotating rod, a first gear, an electric telescopic rod and a first rack, the shielding plate moves upwards to open a heat dissipation opening in the top of the shell, heat generated when the battery is charged can be dissipated, and therefore the temperature of the battery is reduced, overheating is prevented, and the safety and the service life of the battery are guaranteed; and meanwhile, the low temperature is kept, so that the battery can be charged in the optimal working environment, and the charging efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and specifically relates to a lithium battery with a charging protection structure. Background Art

[0002] A lithium battery with a charging protection structure refers to a lithium battery that integrates a dedicated protection circuit or protection mechanism inside or outside the lithium battery to prevent the battery from being damaged due to abnormal conditions such as overcharging, over-discharging, short-circuiting, and overcurrent during charging, discharging, or use, and even causing potential safety hazards.

[0003] The patent with the patent announcement number CN213636104U relates to the technical field of lithium batteries. This patent discloses a lithium battery with a charging protection structure, which includes a charging protective case. A support pillar is fixedly connected to the bottom of the charging protective case. A clamping block is fixedly installed on one side inside the charging protective case. A first spring is fixedly installed inside the clamping block. A clamping plate is fixedly installed on one side of the first spring. A cushion strip is fixedly connected to one side of the clamping plate. The cushion strip is in fitting connection with a lithium battery body on one side. For this lithium battery with a charging protection structure, by opening heat dissipation holes at the bottom of the charging protective case, when the lithium battery with a charging protection structure is in use, it can avoid the problem that the temperature of the lithium battery body is too high during charging, which affects the charging efficiency and charging safety. Through the clamping plate and the cushion strip, the lithium battery body has the function of being suspended and fixed, achieving the effect of natural ventilation and heat dissipation, improving the safety of the lithium battery body during charging, and enhancing the charging protection effect of the lithium battery body.

[0004] In the above patent, by opening heat dissipation holes at the bottom of the charging protective case, when the lithium battery with a charging protection structure is in use, it can avoid the problem that the temperature of the lithium battery body is too high during charging, which affects the charging efficiency and charging safety. However, when the heat dissipation holes emit heat outward, it is difficult to intake and exhaust air simultaneously through a single heat dissipation hole, which results in low heat dissipation efficiency and causes the battery temperature to be too high. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a lithium battery with a charging protection structure, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A lithium battery with a charging protection structure includes a housing. A lifting handle is fixedly installed at the top of the housing. A charging port is provided at the top of the housing. A battery device is provided inside the housing. A cooling device is provided inside the housing. Among them, the cooling device includes a reciprocating screw rod, a first slider, a baffle, a second slider, a rotating rod, a first gear, an electric telescopic rod and a first rack. The reciprocating screw rod is rotatably installed at the top of the inner wall of the housing. The first slider is slidably installed on the circumferential surface of the reciprocating screw rod. The baffle is slidably installed on the top of the housing. The second slider is slidably installed at the bottom of the baffle. One end of the rotating rod is rotatably installed inside the first slider, and the other end of the rotating rod is rotatably installed inside the second slider. The first gear is fixedly installed on the right side of the reciprocating screw rod. The electric telescopic rod is fixedly installed on the inner wall of the housing. The first rack is fixedly installed at the output end of the electric telescopic rod. By starting the electric telescopic rod and pushing the first rack to move, the movement of the first rack drives the first gear to rotate. The rotation of the first gear drives the reciprocating screw rod to rotate. The rotation of the reciprocating screw rod drives the first slider to move. The movement of the first slider drives the rotating rod to move. The movement of the rotating rod drives the second slider to move. The movement of the second slider drives the baffle to move upward. The upward movement of the baffle opens the heat dissipation port at the top of the housing; Among them, a stabilizing device for stabilizing the battery device and a protection device for protecting the battery are provided inside the housing. By providing the stabilizing device, the battery can be effectively pressed, and by providing the protection device, additional physical protection is provided for the lithium battery.

[0007] According to the above technical solution, the cooling device further includes a second gear, a rotating plate and a second rack. The rotating plate is rotatably installed on the inner wall of the housing. The second gear is fixedly installed on the back of the rotating plate. The second rack is fixedly installed at the bottom of the baffle. The first gear meshes with the first rack, and the second gear meshes with the second rack. Through meshing, it is ensured that the first rack can drive the first gear to rotate when moving, and through meshing, it is ensured that the second rack can drive the second gear to rotate when moving.

[0008] According to the above technical solution, the stabilizing device includes a first elastic telescopic rod, a contact plate, a push rod, an inclined plane rod and a first inclined plane block. The first elastic telescopic rod is fixedly installed at the top of the inner wall of the housing. The contact plate is fixedly installed at the bottom of the movable end of the first elastic telescopic rod. The push rod is fixedly installed at the bottom of the baffle. The inclined plane rod is slidably installed at the top of the inner wall of the housing. The first inclined plane block is fixedly installed on the top of the contact plate. When the baffle moves upward, it drives the push rod to move upward at the same time. The movement of the push rod contacts and pushes the inclined plane rod to move. The movement of the inclined plane rod contacts and pushes the first inclined plane block to move downward. The movement of the first inclined plane block drives the contact plate to move downward. The movement of the contact plate contacts the battery device.

[0009] According to the above technical solution, the stabilizing device further includes a pressure rod, a second elastic telescopic rod, a clamping plate, and a second inclined block. The pressure rod is fixedly installed on the right side of the contact plate. The second elastic telescopic rod is fixedly installed on the right side of the inner wall of the housing. The clamping plate is fixedly installed at the movable end of the second elastic telescopic rod. The second inclined block is fixedly installed on the top of the clamping plate. When the contact plate moves downward, it drives the pressure rod to start moving downward. The pressure rod moves to contact and push the second inclined block to start moving. The movement of the second inclined block drives the clamping plate to start moving. The clamping plate moves to contact the battery device and clamp it.

[0010] According to the above technical solution, the surfaces of the push rod and the inclined surface rod that are in contact with each other are both provided with inclined surfaces. The surfaces of the inclined surface rod and the first inclined block that are in contact with each other are both provided with inclined surfaces. The surfaces of the pressure rod and the second inclined block that are in contact with each other are both provided with inclined surfaces. By providing inclined surfaces, it is ensured that the push rod can smoothly push the inclined surface rod when moving. By providing inclined surfaces, it is ensured that the inclined surface rod can smoothly push the first inclined block when moving. By providing inclined surfaces, it is ensured that the pressure rod can smoothly push the second inclined block when moving.

[0011] According to the above technical solution, the protection device includes a moving rod, a sliding column, a bottom rod, and a third inclined block. The moving rod is fixedly installed on the circumferential surface of the movable end of the first elastic telescopic rod. The sliding column slidably penetrates the bottom of the housing. The bottom rod is fixedly installed at the bottom of the sliding column. The third inclined block is fixedly installed on the top of the sliding column. When the clamping plate moves, it drives the movable end of the second elastic telescopic rod to start moving. The movement of the movable end of the second elastic telescopic rod drives the moving rod to start moving. The moving rod moves to contact and push the third inclined block to start moving downward. The movement of the third inclined block drives the sliding column to start moving downward. The movement of the sliding column drives the bottom rod to start moving downward. The movement of the bottom rod lifts the battery.

[0012] According to the above technical solution, the protection device further includes a fixed rod, a moving column, a fourth inclined block, and a protection plate. The fixed rod is fixedly installed on the top of the bottom rod. The moving column slidably penetrates the housing. The fourth inclined block is fixedly installed at one end of the moving column close to the inner wall of the housing. The protection plate is fixedly installed at the end of the moving column away from the fourth inclined block. When the bottom rod starts to move downward, it drives the fixed rod to start moving downward. The downward movement of the fixed rod contacts and pushes the fourth inclined block to start moving. The movement of the fourth inclined block drives the moving column to start moving. The movement of the moving column drives the protection plate to start moving.

[0013] According to the above technical solution, the surfaces of the movable rod and the third inclined plane block in contact with each other are both set as inclined planes, the surfaces of the fixed rod and the fourth inclined plane block in contact with each other are both set as inclined planes, a first spring is arranged between the sliding column and the inner wall of the housing, and a second spring is arranged between the movable column and the inner wall of the housing. By setting the inclined planes, it is ensured that the movable rod can smoothly push the third inclined plane block when moving, by setting the inclined planes, it is ensured that the fixed rod can smoothly push the fourth inclined plane block when moving, by setting the first spring, it is ensured that the sliding column can achieve self-resetting, and by setting the second spring, it is ensured that the movable column can achieve self-resetting.

[0014] The present invention provides a lithium battery with a charging protection structure. It has the following beneficial effects: (1) In this invention, by moving the shielding plate upward to open the heat dissipation opening at the top of the housing, the heat generated during battery charging can be dissipated, thereby reducing the battery temperature, preventing overheating, ensuring the safety and service life of the battery. At the same time, maintaining a lower temperature helps to ensure that the battery can be charged in the best working environment, thereby improving the charging efficiency.

[0015] (2) In this invention, by moving the rotating plate to open the air inlet at the front of the housing, more air can circulate, forming natural convection, helping the battery dissipate heat more effectively, further reducing the battery temperature, preventing overheating. At the same time, when the air inlet is opened, the cold air outside can flow into the surrounding of the battery, making the surface temperature of the entire battery evenly distributed, and avoiding damage to some parts due to excessive temperature.

[0016] (3) In this invention, by ensuring that the heat dissipation opening is opened before charging, it can ensure that the battery has sufficient heat dissipation channels before charging starts, keep the temperature within a safe range, reduce the safety hazards caused by high temperature, prevent the battery from overheating, reduce the damage to the battery caused by overheating, thereby extending the service life of the battery. By moving the clamping plate to contact and clamp the battery device, the battery can be effectively pressed, reducing the space for battery expansion, thereby reducing the risk of expansion and deformation. This pressing effect can help the battery maintain good structural stability, and at the same time can help the components inside the battery maintain stable contact, avoiding the phenomenon of reduced charging efficiency or instability caused by poor contact.

[0017] (4) In this invention, by moving the bottom rod to lift the battery, the air circulation between the battery and the charging bottom plate can be increased, helping to dissipate heat, reducing the battery temperature, avoiding safety problems or battery performance degradation caused by overheating, ensuring that there is not too much heat accumulation between the battery and the charging plate, and further reducing the risk of overheating. By moving the protection plate, additional physical protection can be provided for the lithium battery, avoiding the battery from being externally impacted or squeezed during charging, thereby reducing battery damage caused by external forces and preventing accidents from occurring during battery movement or operation. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the housing and battery device of the present invention; Figure 3 It is a schematic cross-sectional view of the cooling device of the present invention; Figure 4 It is a schematic cross-sectional view of the second gear and the second rack of the present invention; Figure 5 It is a schematic cross-sectional view of the stabilizing device of the present invention; Figure 6 It is a schematic cross-sectional view of the protection device of the present invention; Figure 7 It is a schematic cross-sectional view of the bottom rod and the fixed rod of the present invention.

[0019] In the figure: 1. Housing; 2. Lifting handle; 3. Charging port; 4. Battery device; 5. Reciprocating lead screw; 6. First slider; 7. Shutter; 8. Second slider; 9. Rotating rod; 10. First gear; 11. Electric telescopic rod; 12. First rack; 13. Second gear; 14. Rotating plate; 15. Second rack; 161. First elastic telescopic rod; 162. Contact plate; 163. Push rod; 164. Inclined plane rod; 165. First inclined plane block; 166. Pressing rod; 167. Second elastic telescopic rod; 168. Clamping plate; 169. Second inclined plane block; 171. Moving rod; 172. Slide column; 173. Bottom rod; 174. Third inclined plane block; 175. Fixed rod; 176. Moving column; 177. Fourth inclined plane block; 178. Protection plate. Detailed implementation manners

[0020] 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 efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-7 , an embodiment of the present invention is: a lithium battery with a charging protection structure, including a housing 1, a lifting handle 2 is fixedly installed on the top of the housing 1, a charging port 3 is arranged on the top of the housing 1, a battery device 4 is arranged inside the housing 1, and a cooling device is arranged inside the housing 1; Among them, the cooling device includes a reciprocating lead screw 5, a first slider 6, a baffle 7, a second slider 8, a rotating rod 9, a first gear 10, an electric telescopic rod 11 and a first rack 12. The reciprocating lead screw 5 is rotatably installed at the top inner wall of the housing 1. The first slider 6 is slidably installed on the circumferential surface of the reciprocating lead screw 5. The baffle 7 is slidably installed on the top of the housing 1. The second slider 8 is slidably installed at the bottom of the baffle 7. One end of the rotating rod 9 is rotatably installed inside the first slider 6, and the other end of the rotating rod 9 is rotatably installed inside the second slider 8. The first gear 10 is fixedly installed on the right side of the reciprocating lead screw 5. The electric telescopic rod 11 is fixedly installed on the inner wall of the housing 1. The first rack 12 is fixedly installed at the output end of the electric telescopic rod 11. By moving the baffle 7 upward to open the heat dissipation port at the top of the housing 1, the heat generated during battery charging can be dissipated, thereby reducing the battery temperature, preventing overheating, ensuring the safety and service life of the battery. At the same time, maintaining a lower temperature helps to ensure that the battery can be charged in the best working environment, thereby improving the charging efficiency.

[0022] The cooling device further includes a second gear 13, a rotating plate 14 and a second rack 15. The rotating plate 14 is rotatably installed on the inner wall of the housing 1. The second gear 13 is fixedly installed on the back of the rotating plate 14. The second rack 15 is fixedly installed at the bottom of the baffle 7. The first gear 10 meshes with the first rack 12, and the second gear 13 meshes with the second rack 15. Through the meshing, it is ensured that the first rack 12 can drive the first gear 10 to rotate when moving, and through the meshing, it is ensured that the second rack 15 can drive the second gear 13 to rotate when moving.

[0023] During the operation of this embodiment: First, the staff checks the status of the battery. After the staff confirms that there is no problem, the staff lifts the entire battery through the lifting handle 2 and installs the battery at the designated position. Subsequently, the circuit is connected to the charging port 3. After the internal power of the battery is used up, the battery starts to replenish electric energy into the interior through the charging port 3. When the battery starts charging, the electric telescopic rod 11 starts and pushes the first rack 12 to start moving. The movement of the first rack 12 drives the first gear 10 to start rotating. The rotation of the first gear 10 drives the reciprocating lead screw 5 to start rotating. The rotation of the reciprocating lead screw 5 drives the first slider 6 to start moving. The movement of the first slider 6 drives the rotating rod 9 to start moving. The movement of the rotating rod 9 drives the second slider 8 to start moving. The movement of the second slider 8 drives the baffle 7 to start moving upward. The upward movement of the baffle 7 opens the heat dissipation port at the top of the housing 1, and the heat generated during the battery charging can be dissipated, thereby reducing the battery temperature, preventing overheating, ensuring the safety and service life of the battery. At the same time, maintaining a lower temperature helps to ensure that the battery can be charged in the best working environment, thereby improving the charging efficiency. While the baffle 7 moves upward, it drives the second rack 15 to start moving upward. The movement of the second rack 15 drives the second gear 13 to start rotating. The rotation of the second gear 13 drives the rotating plate 14 to start rotating. The movement of the rotating plate 14 opens the air inlet at the front of the housing 1, allowing more air to circulate, forming natural convection, helping the battery to dissipate heat more effectively, further reducing the battery temperature, preventing overheating. At the same time, when the air inlet is opened, the cold air outside can flow into the surrounding of the battery, making the surface temperature of the entire battery evenly distributed, avoiding damage to some parts due to excessive temperature.

[0024] Please refer to Figures 1-7 , on the basis of the above embodiment, in another embodiment of the present invention, a stabilizing device for stabilizing the battery device 4 and a protection device for protecting the battery are provided inside the housing 1. By setting the stabilizing device, the battery can be effectively pressed, and by setting the protection device, additional physical protection is provided for the lithium battery.

[0025] The stabilizing device includes a first elastic telescopic rod 161, a contact plate 162, a push rod 163, an inclined plane rod 164, and a first inclined plane block 165. The first elastic telescopic rod 161 is fixedly installed at the top of the inner wall of the housing 1. The contact plate 162 is fixedly installed at the bottom of the movable end of the first elastic telescopic rod 161. The push rod 163 is fixedly installed at the bottom of the baffle 7. The inclined plane rod 164 is slidably installed at the top of the inner wall of the housing 1. The first inclined plane block 165 is fixedly installed at the top of the contact plate 162. By ensuring that the heat dissipation port is opened before charging, it can ensure that there is enough heat dissipation channel for the battery before charging starts, keep the temperature within a safe range, reduce the safety hazards caused by high temperature, prevent the battery from overheating, reduce the damage to the battery caused by overheating, and thus extend the service life of the battery.

[0026] The fixing device further includes a pressure rod 166, a second elastic telescopic rod 167, a clamping plate 168 and a second inclined plane block 169. The pressure rod 166 is fixedly installed on the right side of the contact plate 162. The second elastic telescopic rod 167 is fixedly installed on the right side of the inner wall of the housing 1. The clamping plate 168 is fixedly installed at the movable end of the second elastic telescopic rod 167. The second inclined plane block 169 is fixedly installed on the top of the clamping plate 168. By moving the clamping plate 168 to contact and clamp the battery device 4, the battery can be effectively pressed, the space for battery expansion can be reduced, and thus the risks of expansion and deformation can be lowered. This pressing effect can help the battery maintain good structural stability, and at the same time can help the components inside the battery maintain stable contact, avoiding the problems of decreased charging efficiency or instability caused by poor contact.

[0027] The surfaces of the push rod 163 and the inclined plane rod 164 that are in contact with each other are both provided with inclined planes. The surfaces of the inclined plane rod 164 and the first inclined plane block 165 that are in contact with each other are both provided with inclined planes. The surfaces of the pressure rod 166 and the second inclined plane block 169 that are in contact with each other are both provided with inclined planes. By setting the inclined planes, it is ensured that the push rod 163 can smoothly push the inclined plane rod 164 when moving, by setting the inclined planes, it is ensured that the inclined plane rod 164 can smoothly push the first inclined plane block 165 when moving, and by setting the inclined planes, it is ensured that the pressure rod 166 can smoothly push the second inclined plane block 169 when moving.

[0028] The protection device includes a moving rod 171, a sliding column 172, a bottom rod 173 and a third inclined plane block 174. The moving rod 171 is fixedly installed on the circumferential surface of the movable end of the first elastic telescopic rod 161. The sliding column 172 slidably penetrates through the bottom of the housing 1. The bottom rod 173 is fixedly installed at the bottom of the sliding column 172. The third inclined plane block 174 is fixedly installed on the top of the sliding column 172. By moving the bottom rod 173 to lift the battery, the air circulation between the battery and the charging bottom plate can be increased, which helps with heat dissipation, reduces the battery temperature, avoids safety problems or degradation of battery performance caused by overheating, ensures that there will be no excessive heat accumulation between the battery and the charging plate, and further reduces the risk of overheating.

[0029] The protection device further includes a fixed rod 175, a moving column 176, a fourth inclined plane block 177 and a protection plate 178. The fixed rod 175 is fixedly installed on the top of the bottom rod 173. The moving column 176 slidably penetrates through the housing 1. The fourth inclined plane block 177 is fixedly installed at one end of the moving column 176 close to the inner wall of the housing 1. The protection plate 178 is fixedly installed at the end of the moving column 176 away from the fourth inclined plane block 177. By moving the protection plate 178, additional physical protection can be provided for the lithium battery, avoiding external impacts or squeezes on the battery during the charging process, thereby reducing battery damage caused by external forces and preventing accidents from occurring to the battery during movement or operation.

[0030] One surface of the moving rod 171 in contact with the third inclined surface block 174 is set as an inclined surface, and one surface of the fixed rod 175 in contact with the fourth inclined surface block 177 is set as an inclined surface. A first spring is arranged between the sliding column 172 and the inner wall of the housing 1, and a second spring is arranged between the moving column 176 and the inner wall of the housing 1. By setting the inclined surfaces, it is ensured that the moving rod 171 can smoothly push the third inclined surface block 174 when moving. By setting the inclined surfaces, it is ensured that the fixed rod 175 can smoothly push the fourth inclined surface block 177 when moving. By setting the first spring, it is ensured that the sliding column 172 can achieve self-resetting. By setting the second spring, it is ensured that the moving column 176 can achieve self-resetting.

[0031] When this embodiment works: while the shutter 7 moves upward, it drives the push rod 163 to start moving upward. The push rod 163 moves into contact with and pushes the inclined surface rod 164 to start moving. The inclined surface rod 164 moves into contact with and pushes the first inclined surface block 165 to start moving downward. The first inclined surface block 165 moves to drive the contact plate 162 to start moving downward. The contact plate 162 moves into contact with the battery device 4 and then starts charging the battery. By ensuring that the heat dissipation openings are opened before charging, it can ensure that there are sufficient heat dissipation channels for the battery before charging starts, keep the temperature within a safe range, reduce potential safety hazards caused by high temperature, prevent the battery from overheating, and reduce the damage to the battery caused by overheating, thereby extending the service life of the battery. While the contact plate 162 moves downward, it drives the pressure rod 166 to start moving downward. The pressure rod 166 moves into contact with and pushes the second inclined surface block 169 to start moving. The second inclined surface block 169 moves to drive the clamping plate 168 to start moving. The clamping plate 168 moves into contact with the battery device 4 and clamps it, which can effectively press the battery, reduce the space for the battery to expand, and thus reduce the risk of expansion and deformation. This pressing effect can help the battery maintain good structural stability, and at the same time can help the various components inside the battery maintain stable contact, avoiding problems such as decreased charging efficiency or instability caused by poor contact.

[0032] While the clamping plate 168 moves, it drives the movable end of the second elastic telescopic rod 167 to start moving. The movement of the movable end of the second elastic telescopic rod 167 drives the moving rod 171 to start moving. The moving rod 171 moves to contact and push the third inclined block 174 to start moving downward. The movement of the third inclined block 174 drives the sliding column 172 to start moving downward. The movement of the sliding column 172 drives the bottom rod 173 to start moving downward. The movement of the bottom rod 173 lifts the battery, which can increase the air circulation between the battery and the charging base plate, help with heat dissipation, reduce the battery temperature, avoid safety problems or a decline in battery performance caused by overheating, ensure that there is no excessive heat accumulation between the battery and the charging plate, and further reduce the risk of overheating. While the bottom rod 173 starts moving downward, it drives the fixed rod 175 to start moving downward. The downward movement of the fixed rod 175 contacts and pushes the fourth inclined block 177 to start moving. The movement of the fourth inclined block 177 drives the moving column 176 to start moving. The movement of the moving column 176 drives the guard plate 178 to start moving. The movement of the guard plate 178 can provide additional physical protection for the lithium battery, avoid the battery being impacted or squeezed externally during the charging process, thereby reducing battery damage caused by external forces, and preventing accidents from occurring to the battery during movement or operation.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery with a charging protection structure, comprising a housing (1), characterized in that: A lifting handle (2) is fixedly installed at the top of the housing (1), a charging port (3) is arranged at the top of the housing (1), a battery device (4) is arranged inside the housing (1), and a cooling device is arranged inside the housing (1). Among them, the cooling device includes a reciprocating screw rod (5), a first slider (6), a shielding plate (7), a second slider (8), a rotating rod (9), a first gear (10), an electric telescopic rod (11) and a first rack (12). The reciprocating screw rod (5) is rotatably installed at the top inner wall of the housing (1), the first slider (6) is slidably installed on the circumferential surface of the reciprocating screw rod (5), the shielding plate (7) is slidably installed on the top of the housing (1), the second slider (8) is slidably installed at the bottom of the shielding plate (7), one end of the rotating rod (9) is rotatably installed inside the first slider (6), the other end of the rotating rod (9) is rotatably installed inside the second slider (8), the first gear (10) is fixedly installed on the right side of the reciprocating screw rod (5), the electric telescopic rod (11) is fixedly installed on the inner wall of the housing (1), and the first rack (12) is fixedly installed at the output end of the electric telescopic rod (11). Among them, a stabilizing device for stabilizing the battery device (4) and a protection device for protecting the battery are arranged inside the housing (1).

2. The lithium battery with a charging protection structure according to claim 1, wherein: The cooling device further includes a second gear (13), a rotating plate (14) and a second rack (15). The rotating plate (14) is rotatably installed on the inner wall of the housing (1), the second gear (13) is fixedly installed on the back of the rotating plate (14), the second rack (15) is fixedly installed at the bottom of the shielding plate (7), the first gear (10) meshes with the first rack (12), and the second gear (13) meshes with the second rack (15).

3. A lithium battery with a charging protection structure according to claim 2, wherein: The stabilizing device includes a first elastic telescopic rod (161), a contact plate (162), a push rod (163), an inclined surface rod (164) and a first inclined surface block (165). The first elastic telescopic rod (161) is fixedly installed at the top inner wall of the housing (1), the contact plate (162) is fixedly installed at the bottom of the movable end of the first elastic telescopic rod (161), the push rod (163) is fixedly installed at the bottom of the shielding plate (7), the inclined surface rod (164) is slidably installed at the top inner wall of the housing (1), and the first inclined surface block (165) is fixedly installed at the top of the contact plate (162).

4. The lithium battery with a charging protection structure according to claim 3, wherein: The stabilizing device further includes a pressing rod (166), a second elastic telescopic rod (167), a clamping plate (168) and a second inclined surface block (169). The pressing rod (166) is fixedly installed on the right side of the contact plate (162), the second elastic telescopic rod (167) is fixedly installed on the right inner wall of the housing (1), the clamping plate (168) is fixedly installed at the movable end of the second elastic telescopic rod (167), and the second inclined surface block (169) is fixedly installed at the top of the clamping plate (168).

5. A lithium battery with a charging protection structure according to claim 4, characterized in that: The surfaces of the push rod (163) and the inclined surface rod (164) in contact with each other are both set as inclined surfaces, the surfaces of the inclined surface rod (164) and the first inclined surface block (165) in contact with each other are both set as inclined surfaces, and the surfaces of the pressing rod (166) and the second inclined surface block (169) in contact with each other are both set as inclined surfaces.

6. The lithium battery with a charging protection structure according to claim 5, wherein: The protection device includes a moving rod (171), a sliding column (172), a bottom rod (173) and an inclined block three (174). The moving rod (171) is fixedly installed on the circumferential surface of the movable end of the first elastic telescopic rod (161). The sliding column (172) slidably penetrates through the bottom of the housing (1). The bottom rod (173) is fixedly installed at the bottom of the sliding column (172). The inclined block three (174) is fixedly installed at the top of the sliding column (172).

7. The lithium battery with a charging protection structure according to claim 6, characterized in that: The protection device further includes a fixed rod (175), a moving column (176), an inclined block four (177) and a guard plate (178). The fixed rod (175) is fixedly installed at the top of the bottom rod (173). The moving column (176) slidably penetrates through the housing (1). The inclined block four (177) is fixedly installed at one end of the moving column (176) close to the inner wall of the housing (1). The guard plate (178) is fixedly installed at the end of the moving column (176) away from the inclined block four (177).

8. A lithium battery with a charging protection structure according to claim 7, characterized in that: The surfaces of the moving rod (171) and the inclined block three (174) that are in contact with each other are both provided with inclined surfaces. The surfaces of the fixed rod (175) and the inclined block four (177) that are in contact with each other are both provided with inclined surfaces. A first spring is provided between the sliding column (172) and the inner wall of the housing (1). A second spring is provided between the moving column (176) and the inner wall of the housing (1).

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