Charging protection device

Abstract

The utility model discloses a charging protection device, which comprises a box body, a box cover, a protection mechanism and a heat dissipation mechanism, the upper part of the box body is rotatably connected with the box cover through a hinge, the box body is internally provided with the protection mechanism used for preventing fire during charging, the outer side of the box body is provided with the heat dissipation mechanism used for heat dissipation during the charging process, and the box body is provided with the heat dissipation mechanism used for heat dissipation during the charging process. And the protection mechanism comprises a supporting seat, charging seats, a battery pack, a fire extinguishing assembly, a positioning assembly and a pressing assembly, the supporting seat is fixedly connected to the interior of the box body, the charging seats are fixedly connected to the upper portions of the two ends of the supporting seat, and the battery pack is arranged above the supporting seat and electrically connected with the charging seats. According to the charging protection device provided by the utility model, through the structural design of the protection mechanism, the battery pack can be firmly fixed during charging, and once the battery pack is on fire during charging, carbon dioxide can be immediately sprayed out through the electric spray head to quickly extinguish the fire, so that the safety of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery protection, in particular to a charging protection device. Background Art

[0002] Energy storage batteries require a charging protection device during the charging process. Its main function is to monitor, control and protect the energy storage batteries, and prevent the batteries from overcharging, over-discharging, over-current, over-temperature and other dangerous situations during charging, thereby extending the battery life and ensuring the safety and stability of the system.

[0003] For example, a Chinese utility model patent (CN212914287U) discloses a battery charging protection device, which records: "By setting a rotating motor, when the battery pack catches fire, the rotating motor rotates to drop the battery pack into the water, and a large amount of water puts out the fire. Compared with other fire extinguishing methods, this method is quick, convenient and thorough." It also records: "There are frequent reports of electric batteries catching fire while charging, and this battery poses a safety hazard to citizens." Technical problems.

[0004] In summary, it can be seen that the following technical problems exist in the prior art: when the battery pack catches fire, the rotating motor of the charging protection device in the above patent rotates to drop the battery pack into the water, which can play a certain role. However, the battery contains an electrolyte solution, usually an organic solvent or a salt solution. When the electrolyte comes into contact with water, it may trigger a chemical reaction, generate more heat and gas, and intensify the fire. In order to facilitate the battery pack to be dropped into the water, the device lacks a fixation for the battery pack. For this reason, the present application proposes a charging protection device to provide a new technical solution to solve the technical problems mentioned in the above patent. Utility Model Content

[0005] Based on this, it is necessary to provide a charging protection device to address the above technical problems. Through the structural design of the protection mechanism, the battery pack can be firmly fixed during charging. Once the battery pack catches fire during charging, carbon dioxide can be immediately sprayed out through the electric nozzle to quickly extinguish the fire, greatly improving the safety of the device.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A charging protection device is used for charging protection of energy storage batteries.

[0008] The charging protection device specifically comprises: a box body, a box cover, a protection mechanism and a heat dissipation mechanism, wherein the box body is rotatably connected with the box cover on the top through a hinge, the box body is provided with a protection mechanism for preventing fire during charging, and the box body is provided with a heat dissipation mechanism for dissipating heat during charging on the outside;

[0009] The protection mechanism includes a support base, a charging base, a battery pack, a fire extinguishing assembly, a positioning assembly and a clamping assembly. The interior of the box is fixedly connected to the support base, the charging base is fixedly connected above both ends of the support base, a battery pack is arranged above the support base, and the battery pack is electrically connected to the charging base.

[0010] As a preferred embodiment of the charging protection device provided by the utility model, the fire extinguishing assembly includes a carbon dioxide storage tank, a movable frame, a connecting pipe and an electric nozzle. The outer side of the box is fixedly connected to the movable frame, the inner side of the movable frame is movably connected to the carbon dioxide storage tank, the top of the box is fixedly connected to a connecting pipe, the connecting pipe is connected to the carbon dioxide storage tank, one end of the connecting pipe away from the carbon dioxide storage tank passes through the box and extends to the interior of the box, the interior of the box and at a position corresponding to the connecting pipe is fixedly connected to an electric nozzle, and the connecting pipe is fixedly connected to the input end of the electric nozzle.

[0011] As a preferred embodiment of the charging protection device provided by the utility model, a smoke sensor is fixedly connected to the inner side of the box cover, and the smoke sensor is electrically connected to the charging base and the electric nozzle.

[0012] As a preferred embodiment of the charging protection device provided by the utility model, the positioning assembly includes a positioning rod, a horizontal plate, a groove and a hand-tightening bolt. A positioning rod is fixedly connected above the support seat and at both sides of the battery pack. A horizontal plate is arranged above the battery pack. Grooves are provided at the ends of the horizontal plate and at positions corresponding to the positioning rods. A hand-tightening bolt is arranged above the positioning rod. The hand-tightening bolt passes through the horizontal plate and is threadedly connected to the positioning rod. The lower surface of the hand-tightening bolt is tightly fitted with the top surface of the horizontal plate.

[0013] As a preferred embodiment of the charging protection device provided by the utility model, the clamping assembly includes a hand plate, a pressure plate and a threaded rod, the middle part of the cross plate is threadedly connected with the threaded rod, the lower end of the threaded rod is rotatably connected with the pressure plate, the bottom surface of the pressure plate is tightly fitted with the battery pack, and the upper end of the threaded rod is fixedly connected with the hand plate.

[0014] As a preferred embodiment of the charging protection device provided by the utility model, the heat dissipation mechanism includes a fan and a heat dissipation groove, the fan is embedded and fixedly connected to the surface of the box body, and a heat dissipation groove is opened in the middle of the heat dissipation groove and below the battery pack.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The charging protection device provided by the utility model can firmly fix the battery pack during charging through the structural design of the protection mechanism, and once the battery pack catches fire during charging, carbon dioxide can be immediately sprayed out through the electric nozzle to quickly extinguish the fire, thereby greatly improving the safety of the device.

[0017] The charging protection device provided by the utility model, through the structural design of the heat dissipation mechanism, can quickly dissipate heat from the inside of the box and the bottom of the battery pack by starting the fan when charging the battery pack, thereby preventing the battery pack from being affected in service life due to excessive temperature during charging, and effectively improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the charging protection device provided by the utility model;

[0020] Figure 2 A schematic diagram of the structure of the protection mechanism, smoke sensor and fan of the charging protection device provided by the utility model;

[0021] Figure 3 A cross-sectional view of the internal structure of the charging protection device box provided by the utility model;

[0022] Figure 4 A schematic diagram of the structure of the positioning assembly and the pressing assembly of the charging protection device provided by the utility model;

[0023] Figure 5 The charging protection device provided by the utility model Figure 4 A magnified view of the structure at A.

[0024] The markings in the figure are as follows:

[0025] 1. Box body; 2. Box cover; 3. Protection mechanism; 4. Heat dissipation mechanism; 5. Smoke sensor; 6. Fan; 7. Support base; 8. Charging base; 9. Battery pack; 10. Carbon dioxide storage tank; 11. Movable frame; 12. Connecting pipe; 13. Electric nozzle; 14. Heat dissipation slot; 15. Positioning rod; 16. Horizontal plate; 17. Hand plate; 18. Pressing plate; 19. Threaded rod; 20. Groove; 21. Hand-tightened bolt. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0027] As described in the background technology, when the battery pack catches fire, the charging protection device in the above patent can play a certain role in that the rotating motor rotates to drop the battery pack into the water. However, the battery contains an electrolyte solution, usually an organic solvent or a salt solution. When the electrolyte comes into contact with water, it may trigger a chemical reaction, generate more heat and gas, and intensify the fire. In order to facilitate the battery pack to be dropped into the water, the device lacks a fixation for the battery pack.

[0028] In order to solve this technical problem, the utility model provides a charging protection device, which is applied to charging protection of energy storage batteries.

[0029] Specifically, please refer to Figure 1-Figure 5 , the charging protection device specifically includes:

[0030] Box body 1, box cover 2, protection mechanism 3 and heat dissipation mechanism 4, the box body 1 is rotatably connected with the box cover 2 on the top through a hinge, the box body 1 is provided with a protection mechanism 3 for preventing fire during charging, and the box body 1 is provided with a heat dissipation mechanism 4 for dissipating heat during charging on the outside;

[0031] The protection mechanism 3 includes a support base 7, a charging base 8, a battery pack 9, a fire extinguishing assembly, a positioning assembly and a clamping assembly. The support base 7 is fixedly connected to the inside of the box body 1, and the charging base 8 is fixedly connected above the two ends of the support base 7. A battery pack 9 is arranged above the support base 7, and the battery pack 9 is electrically connected to the charging base 8.

[0032] The charging protection device provided by the utility model can firmly fix the battery pack 9 during charging through the structural design of the protection mechanism 3, and once the battery pack 9 catches fire during charging, carbon dioxide can be immediately sprayed out through the electric nozzle 13 to quickly extinguish the fire, thereby greatly improving the safety of the device.

[0033] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0034] Embodiment 1:

[0035] Please refer to Figure 1-Figure 5A charging protection device comprises: a box body 1, a box cover 2, a protection mechanism 3 and a heat dissipation mechanism 4, the box body 1 is rotatably connected with the box cover 2 on the top through a hinge, the box body 1 is provided with a protection mechanism 3 for preventing fire during charging, and the box body 1 is provided with a heat dissipation mechanism 4 for dissipating heat during charging on the outside;

[0036] Specifically, the protection mechanism 3 includes a support base 7, a charging base 8, a battery pack 9, a fire extinguishing assembly, a positioning assembly and a clamping assembly. The support base 7 is fixedly connected to the inside of the box body 1, and the charging base 8 is fixedly connected above the two ends of the support base 7. A battery pack 9 is arranged above the support base 7, and the battery pack 9 is electrically connected to the charging base 8.

[0037] Furthermore, the fire extinguishing assembly includes a carbon dioxide storage tank 10, a movable frame 11, a connecting pipe 12 and an electric nozzle 13. The movable frame 11 is fixedly connected to the outer side of the box body 1, the carbon dioxide storage tank 10 is movably connected to the inner side of the movable frame 11, and a connecting pipe 12 is fixedly connected to the top of the box body 1. The connecting pipe 12 is connected to the carbon dioxide storage tank 10. One end of the connecting pipe 12 away from the carbon dioxide storage tank 10 passes through the box body 1 and extends to the interior of the box body 1. The electric nozzle 13 is fixedly connected to the interior of the box body 1 and at a position corresponding to the connecting pipe 12. The connecting pipe 12 is fixedly connected to the input end of the electric nozzle 13.

[0038] Furthermore, a smoke sensor 5 is fixedly connected to the inner side of the box cover 2 , and the smoke sensor 5 is electrically connected to the charging base 8 and the electric spray head 13 .

[0039] It can be seen that the smoke sensor 5 will monitor the interior of the box 1 when the battery pack 9 is charging. When the battery pack 9 catches fire and produces smoke, the smoke sensor 5 will immediately cut off the power supply of the charging base 8 and control the electric nozzle 13 to start after contacting the smoke, so that the carbon dioxide stored in the carbon dioxide storage tank 10 is sprayed from the electric nozzle 13 along the connecting pipe 12 to the interior of the box 1 and extinguish the flame.

[0040] Furthermore, the positioning assembly includes a positioning rod 15, a cross plate 16, a groove 20 and a hand-tightening bolt 21. The positioning rod 15 is fixedly connected above the support seat 7 and at both sides of the battery pack 9. A cross plate 16 is arranged above the battery pack 9. A groove 20 is provided at the end of the cross plate 16 and at a position corresponding to the positioning rod 15. A hand-tightening bolt 21 is arranged above the positioning rod 15. The hand-tightening bolt 21 passes through the cross plate 16 and is threadedly connected to the positioning rod 15. The lower surface of the hand-tightening bolt 21 is tightly fitted with the top surface of the cross plate 16.

[0041] Furthermore, the clamping assembly includes a hand plate 17, a pressure plate 18 and a threaded rod 19. The middle part of the cross plate 16 is threadedly connected to the threaded rod 19, the lower end of the threaded rod 19 is rotatably connected to the pressure plate 18, the bottom surface of the pressure plate 18 is tightly fitted with the battery pack 9, and the upper end of the threaded rod 19 is fixedly connected to the hand plate 17.

[0042] It can be seen that when in use, the pressure plate 18 can be moved downward by rotating the hand plate 17 and pressed and fixed with the battery pack 9. When the battery pack 9 is fully charged, the box cover 2 can be opened, and the hand plate 17 can be rotated in the opposite direction to separate the pressure plate 18 from the battery pack 9, and then the hand screw bolt 21 is rotated to separate the bottom surface of the hand screw bolt 21 from the cross plate 16, and then the cross plate 16 is removed from above the positioning rod 15 along the groove 20, so that the movement limit of the battery pack 9 can be released, and the battery pack 9 can be taken out from the inside of the box body 1.

[0043] Embodiment 2:

[0044] The charging protection device provided in Example 1 is further optimized. Specifically, Figure 1 and Figure 4 As shown, further, the heat dissipation mechanism 4 includes a fan 6 and a heat dissipation slot 14 , the fan 6 is embedded and fixedly connected to the surface of the box body 1 , and a heat dissipation slot 14 is opened in the middle of the heat dissipation slot 14 and at a position below the battery pack 9 .

[0045] It can be seen that when the battery pack 9 is charged again, the fan 6 can be started to dissipate heat from the battery pack 9 inside the box 1, and the bottom surface of the battery pack 9 can be in contact with the air through the heat dissipation groove 14, thereby improving the heat dissipation effect of the battery pack 9.

Claims

1. A charging protection device, characterized in that: include: A box body (1), a box cover (2), a protection mechanism (3) and a heat dissipation mechanism (4), wherein the box body (1) is rotatably connected to the box cover (2) at the top via a hinge, the box body (1) is provided with a protection mechanism (3) for preventing fire during charging, and the box body (1) is provided with a heat dissipation mechanism (4) for dissipating heat during the charging process at the outside; The protection mechanism (3) comprises a support seat (7), a charging seat (8), a battery pack (9), a fire extinguishing assembly, a positioning assembly and a pressing assembly; the interior of the box (1) is fixedly connected to the support seat (7); the upper ends of the support seat (7) are fixedly connected to the charging seat (8); the upper part of the support seat (7) is provided with a battery pack (9); and the battery pack (9) is electrically connected to the charging seat (8).

2. The charging protection device according to claim 1, characterized in that: The fire extinguishing assembly comprises a carbon dioxide storage tank (10), a movable frame (11), a connecting pipe (12) and an electric spray head (13); the outer side of the box (1) is fixedly connected to the movable frame (11); the inner side of the movable frame (11) is movably connected to the carbon dioxide storage tank (10); the upper side of the box (1) is fixedly connected to the connecting pipe (12); the connecting pipe (12) is connected to the carbon dioxide storage tank (10); one end of the connecting pipe (12) away from the carbon dioxide storage tank (10) passes through the box (1) and extends to the inside of the box (1); the electric spray head (13) is fixedly connected to the inside of the box (1) and at a position corresponding to the connecting pipe (12); the connecting pipe (12) is fixedly connected to the input end of the electric spray head (13).

3. The charging protection device according to claim 2, characterized in that: A smoke sensor (5) is fixedly connected to the inner side of the box cover (2), and the smoke sensor (5) is electrically connected to the charging seat (8) and the electric spray head (13).

4. The charging protection device according to claim 1, characterized in that: The positioning assembly comprises a positioning rod (15), a transverse plate (16), a groove (20) and a hand-tightening bolt (21); the positioning rod (15) is fixedly connected above the support seat (7) and at positions on both sides of the battery pack (9); a transverse plate (16) is arranged above the battery pack (9); a groove (20) is provided at the end of the transverse plate (16) and at a position corresponding to the positioning rod (15); a hand-tightening bolt (21) is arranged above the positioning rod (15); the hand-tightening bolt (21) passes through the transverse plate (16) and is threadedly connected to the positioning rod (15); the lower surface of the hand-tightening bolt (21) is tightly fitted with the top surface of the transverse plate (16).

5. The charging protection device according to claim 4, characterized in that: The clamping assembly comprises a hand plate (17), a pressure plate (18) and a threaded rod (19); the middle part of the horizontal plate (16) is threadedly connected to the threaded rod (19); the lower end of the threaded rod (19) is rotatably connected to the pressure plate (18); the bottom surface of the pressure plate (18) is tightly fitted to the battery pack (9); and the upper end of the threaded rod (19) is fixedly connected to the hand plate (17).

6. The charging protection device according to claim 1, characterized in that: The heat dissipation mechanism (4) comprises a fan (6) and a heat dissipation groove (14); the fan (6) is embedded and fixedly connected to the surface of the box (1); and a heat dissipation groove (14) is provided in the middle of the heat dissipation groove (14) and at a position below the battery pack (9).

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