Unmanned aerial vehicle battery charging box

Abstract

The invention relates to the technical field of charging boxes, and discloses an unmanned aerial vehicle battery charging box which comprises a box body, an upper cover is rotatably mounted at the top of the box body through a hinge part, a charging module and a fixing plate are arranged in the box body, the box body is divided into a ventilation bin and an anti-explosion isolation bin by the fixing plate, and a plurality of charging grooves are formed in the charging module; heat dissipation and ventilation are conducted on the interior of the charging box by arranging the ventilation bin, batteries which are in thermal runaway or are on fire due to short circuit are isolated by arranging the anti-explosion isolation bin, further expansion of disasters is prevented, and the ventilation groove in the charging groove which breaks down is blocked by arranging the blocking assembly. Thermal runaway can be prevented from entering the ventilation bin through the ventilation groove, complete isolation of the anti-explosion isolation bin is achieved, the partition plate and the battery which break down in the charging groove can be separated from the charging groove through the separation groove through the trigger mechanism when the plugging assembly is plugged, and complete power failure in the first time is achieved.

Description

Technical Field

[0001] This invention relates to the field of charging box technology, and more particularly to a drone battery charging box. Background Technology

[0002] With the large-scale application of drones in industrial inspection, logistics delivery, surveying and exploration, their high-frequency, multi-fleet operation mode poses a severe challenge to the centralized charging and management of batteries. Traditional decentralized charging methods suffer from low efficiency, significant safety hazards, and difficulty in monitoring battery status, seriously restricting operational continuity and safety.

[0003] Drone battery charging boxes address these issues by simultaneously charging multiple batteries. This device is evolving from a single charging unit into a core node for drone energy management, significantly improving battery life and overall operational efficiency through standardized interfaces and intelligent analysis, providing crucial infrastructure support for the large-scale commercial application of drones.

[0004] Patent document CN209426591U discloses a mobile charging box for drone batteries, including a box body with a main power switch, a battery inside the box, a battery charging port on the side wall of the box body electrically connected to the battery, a cavity inside the box body for charging the drone, a charging socket inside the cavity, and a display screen on the box body connected to the battery and charging socket, displaying the battery and charging socket's charge levels. Because it uses a box-based device to house the various equipment modules, the charging method is unaffected by region or environment, meeting charging requirements under various outdoor conditions and transportation methods. Furthermore, the charging environment is cleaner, more stable, more flexible, and provides safer battery protection.

[0005] While existing charging boxes possess basic protective designs such as independent charging compartments, temperature monitoring, and short-circuit detection, they still have significant shortcomings in addressing extreme safety risks such as battery thermal runaway, combustion, or explosion. Because the internal space of the charging compartment is typically quite small, if an individual battery experiences thermal runaway during charging, heat and flames can easily accumulate and spread rapidly, potentially even causing an explosion. Despite employing physically isolated independent charging slot structures, a single battery failure can still affect the safety of adjacent batteries and the entire charging compartment through heat conduction, flame spread, or smoke diffusion. While existing technologies are mature in risk monitoring, they lack effective measures for fire and explosion prevention, failing to truly achieve complete containment and isolation of single-point failures, and their safety performance needs improvement. Summary of the Invention

[0006] Purpose of the invention: The purpose of this invention is to provide a drone battery charging box to address the aforementioned shortcomings of the prior art.

[0007] Technical Solution: A drone battery charging box includes a box body. A top cover is rotatably mounted on the top of the box body via a hinge. A charging module and a fixing plate are disposed inside the box body. The fixing plate divides the box body into a ventilation chamber and an explosion-proof isolation chamber. The charging module has multiple charging slots, and batteries are disposed inside the multiple charging slots. Multiple ventilation slots are provided on the side of the charging slots near the ventilation chamber. A detachment slot for battery detachment is provided at the bottom of the charging slot. A partition is provided at the detachment slot to support the battery during normal charging. A sealing component for sealing the ventilation slots is provided on the side wall of the charging module on the side with the ventilation slots. A triggering mechanism is provided between the sealing component and the partition.

[0008] As a further description of the above technical solution: the inner wall of the charging slot is provided with a charging connection slot, and the battery is provided with two electrodes, namely a positive electrode and a negative electrode. The battery is charged after being plugged into the charging connection slot through the positive electrode and the negative electrode. The partition is L-shaped, and the vertical part of the partition is used to abut against the rear side of the battery to make it more tightly connected with the charging connection slot.

[0009] As a further description of the above technical solution: heat dissipation slots are provided on both sides of the ventilation chamber, and a cooling fan is fixedly installed on the fixing plate.

[0010] As a further description of the above technical solution: an aerogel fire extinguisher body is fixedly installed inside the explosion-proof isolation chamber.

[0011] As a further description of the above technical solution: the sealing component includes a sliding plate, which is closely attached to the side wall of the charging module. A docking groove is provided on the sliding plate, which docks with the ventilation groove. A fixing chamber is fixedly installed on the sliding plate, and a sealing block is slidably installed inside the fixing chamber. A spring is provided between the sealing block and the fixing chamber.

[0012] As a further description of the above technical solution: multiple sets of fixing brackets are fixedly installed on the bottom wall of the charging module on the side with the release slot. Each set of fixing brackets has two brackets. The two fixing brackets span across the bottom of the release slot. A limit strip is slidably installed between the two fixing brackets. The limit strip is set at the bottom end of the partition to support the partition. An elastic element is provided between the limit strip and the fixing brackets on both sides.

[0013] As a further description of the above technical solution: the triggering mechanism includes multiple servo pull rods fixedly installed at the bottom of the fixed plate, and trigger plates are fixedly installed at the output ends of the multiple servo pull rods. The trigger plates are arranged between the two limit bars in each group.

[0014] As a further description of the above technical solution: the bottom of the limiting strip is provided with a wedge-shaped inclined surface.

[0015] As a further description of the above technical solution: the top of the upper cover is provided with heat dissipation holes, which are connected to the ventilation chamber.

[0016] As a further description of the above technical solution: the upper cover has multiple sealing frames inside, and the multiple sealing frames are mated and adapted to each other with the charging slot.

[0017] Beneficial effects:

[0018] 1. Ventilation chambers are installed to dissipate heat from the inside of the charging box, and explosion-proof isolation chambers are installed to isolate batteries that have thermal runaway or short-circuited and caught fire, preventing further damage.

[0019] 2. By installing sealing components to seal the ventilation slots on the malfunctioning charging slots, thermal runaway can be prevented from entering the ventilation chamber through the ventilation slots, thus achieving complete isolation of the explosion-proof isolation chamber.

[0020] 3. The triggering mechanism enables the partition and battery inside the faulty charging slot to detach from the charging slot through the detachment slot when the sealing component is sealed, thus achieving complete power cut-off immediately.

[0021] 4. The explosion-proof isolation compartment has a fireproof and heat-insulating layer and an aerogel fire extinguisher body. The fireproof and heat-insulating layer can effectively isolate flames and high temperatures to prevent the disaster from spreading. The aerogel fire extinguisher body can cool down and extinguish fires caused by thermal runaway of lithium batteries. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a drone battery charging box proposed in this invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the present invention after the top cover is opened;

[0024] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0025] Figure 4 For the present invention Figure 3 A magnified structural diagram at point A;

[0026] Figure 5 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0027] Figure 6 For the present invention Figure 5 A magnified structural diagram at point B;

[0028] Figure 7 This is a side cross-sectional view of the structure of the battery falling into the fire extinguishing chamber according to the present invention.

[0029] Figure 8 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0030] Figure 9 For the present invention Figure 8 A magnified structural diagram at point C;

[0031] Figure 10 This is a three-dimensional structural diagram of the battery, separator, sealing assembly, and limiting strip of the present invention in a safe state.

[0032] Figure 11 for Figure 10 A three-dimensional structural diagram showing the battery and separator falling downwards after the sealing component is triggered.

[0033] Legend:

[0034] 1. Housing; 101. Ventilation Chamber; 102. Explosion-proof Isolation Chamber; 2. Hinge; 3. Top Cover; 4. Heat Dissipation Hole; 5. Heat Dissipation Slot; 6. Sealing Frame; 7. Cooling Fan; 8. Fixing Plate; 9. Aerogel Fire Extinguisher Body; 10. Charging Module; 1001. Disengagement Slot; 11. Charging Slot; 12. Battery; 1201. Electrode; 13. Charging Connection Slot; 14. Ventilation Slot; 15. Sliding Plate; 16. Docking Slot; 17. Fixing Chamber; 18. Spring; 19. Sealing Block; 20. Partition; 21. Limiting Strip; 22. Fixing Frame; 23. Elastic Component; 24. Trigger Plate; 25. Servo Pull Rod. Detailed Implementation

[0035] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Reference Figure 1-11A charging box for a drone battery 12 includes a box body 1. A top cover 3 is rotatably mounted on the top of the box body 1 via a hinge 2. A charging module 10 and a fixing plate 8 are disposed inside the box body 1. The fixing plate 8 divides the box body 1 into a ventilation chamber 101 and an explosion-proof isolation chamber 102. The charging module 10 has multiple charging slots 11, each containing a battery 12. Multiple ventilation slots 14 are formed on the side of each charging slot 11 near the ventilation chamber 101. A detachment slot 1001 for battery detachment is formed at the bottom of each charging slot 11. A partition 20 is provided at the detachment slot 1001 to support the battery 12 during normal charging. A sealing assembly for sealing the ventilation slots 14 is provided on the side wall of the charging module 10 on the side with the ventilation slots 14. A triggering mechanism is provided between the sealing assembly and the partition 20. Multiple batteries 1... The batteries 12 are distributed and charged inside each charging slot 11, and are ventilated through the ventilation slot 14 on one side to dissipate heat generated during charging. When a battery 12 experiences charging abnormality, fire, or explosion, the monitoring system of the charging module 10 responds immediately. Through the triggering mechanism, the partition 20 and the battery 12 are simultaneously detached through the detachment slot 1001, allowing them to leave the charging slot 11 and enter the explosion-proof isolation chamber 102 below. The triggering mechanism can also control the sealing component to seal and block the ventilation slot 14 on one side of the charging slot 11, so that the burning battery 12 is isolated inside the explosion-proof isolation chamber 102. The aerogel fire extinguisher body 9 inside extinguishes and cools the exploding battery 12 to prevent further danger. The explosion-proof isolation chamber 102 has a fireproof and heat-insulating layer inside, which can effectively isolate flames and high temperatures to prevent the disaster from spreading.

[0037] As a preferred embodiment, the inner wall of the charging slot 11 is provided with a charging connection slot 13, and the battery 12 is provided with two electrodes 1201, namely a positive electrode 1201 and a negative electrode 1201. The battery 12 is charged after being connected to the charging connection slot 13 through the positive electrode 1201 and the negative electrode 1201. The partition 20 is set in an L-shape, and the vertical part of the partition 20 is used to abut against the rear side of the battery 12 to make it more tightly connected to the charging connection slot 13. The L-shaped setting of the partition 20 provides a certain space between the battery 12 and the side of the charging slot 11 away from the charging connection slot 13, which facilitates the subsequent detachment of the battery 12.

[0038] As a preferred technical solution in this embodiment, heat dissipation slots 5 are provided on both sides of the ventilation chamber 101, and a cooling fan 7 is fixedly installed on the fixing plate 8; the cooling fan 7 can ventilate and dissipate heat inside the ventilation chamber 101 through the heat dissipation slots 5, thereby ensuring heat dissipation and ventilation inside the charging box.

[0039] As a preferred technical solution in this embodiment, an aerogel fire extinguisher body 9 is fixedly installed inside the explosion-proof isolation chamber 102; the aerogel fire extinguisher body 9 is existing technology, which is applied inside electrical equipment with limited space such as power distribution cabinets, and can quickly spray aerogel for fire extinguishing, so it will not be described in detail.

[0040] As a preferred embodiment, the sealing assembly includes a sliding plate 15, which is in close contact with the side wall of the charging module 10. A docking groove 16 is provided on the sliding plate 15, which docks with the ventilation slot 14. A fixing chamber 17 is fixedly installed on the sliding plate 15, and a sealing block 19 is slidably installed inside the fixing chamber 17. A spring 18 is provided between the sealing block 19 and the fixing chamber 17. When the charging box is working normally, the docking groove 16 on the sliding plate 15 can ensure ventilation. During normal heat dissipation and ventilation of the air duct 14, when the triggering mechanism pushes the sliding plate 15 upward, the sealing block 19 inside the fixed compartment 17 on the sliding plate 15 pops out under the action of the spring 18, so that the sealing block 19 enters the interior of the ventilation duct 14 and seals the ventilation duct 14. Secondly, the sealing block 19 can push the battery 12 inward, so that the two electrodes 1201 of the battery 12 are separated from the charging terminal 13, and the battery 12, which has lost the support of the partition 20, can be separated from the release slot 1001 and enter the explosion-proof isolation compartment 102 below.

[0041] As a preferred technical solution of this embodiment, multiple sets of fixing brackets 22 are fixedly installed on the bottom wall of the charging module 10 on the side with the release groove 1001. Each set of fixing brackets 22 has two brackets, and the two fixing brackets 22 span across the bottom of the release groove 1001. A limiting strip 21 is slidably installed between the two fixing brackets 22. The limiting strip 21 is set at the bottom end of the partition 20 to support the partition 20. An elastic element 23 is provided between the limiting strip 21 and the fixing brackets 22 on both sides. The fixing brackets 22 are used to fix the limiting strip 21. The limiting strip 21 further supports the partition 20 and the battery 12. When the limiting strip 21 moves to both sides, after the limiting strip 21 leaves the position below the partition 20, the partition 20 can be released downwards. With the help of the sealing block 19, the battery 12 is pushed out, and the battery 12 can be released from the release groove 1001 and enter the interior of the explosion-proof isolation chamber 102.

[0042] As a preferred technical solution of this embodiment, the triggering mechanism includes multiple servo pull rods 25 fixedly installed at the bottom of the fixed plate 8, and trigger plates 24 are fixedly installed at the output ends of the multiple servo pull rods 25. The trigger plates 24 are arranged between the two limit bars 21 in each group. The servo pull rods 25 are connected to the monitoring system of the charging module 10. When the monitoring system detects an abnormality in the position of a certain charging slot 11, it controls the servo pull rods 25 to pull the trigger plates 24 upward, so that the trigger plates 24 push the limit bars 21 to both sides.

[0043] As a preferred technical solution in this embodiment, the bottom of the limiting strip 21 is provided with a wedge-shaped inclined surface; the wedge-shaped inclined surface can facilitate the upward movement of the trigger plate 24, and while moving, it can push the limiting strip 21 to both sides.

[0044] As a preferred technical solution in this embodiment, the top of the upper cover 3 is provided with a heat dissipation hole 4, which is connected to the ventilation chamber 101; the heat dissipation hole 4 can further dissipate heat and ventilate the interior of the ventilation chamber 101.

[0045] As a preferred technical solution in this embodiment, the upper cover 3 has multiple sealing frames 6 inside, and the multiple sealing frames 6 are mated and adapted to each other with the charging slots 11; when the upper cover 3 is closed, the sealing frames 6 can block the position of the charging slots 11, thereby achieving isolation between the charging slots 11.

[0046] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A drone battery charging case, comprising a case body (1), wherein a top cover (3) is rotatably mounted on the top of the case body (1) via a hinge (2), and a charging module (10) and a fixing plate (8) are disposed inside the case body (1), characterized in that, The fixing plate (8) divides the box (1) into a ventilation chamber (101) and an explosion-proof isolation chamber (102). The charging module (10) is provided with multiple charging slots (11), and batteries (12) are installed inside the multiple charging slots (11). Multiple ventilation slots (14) are provided on the side of the charging slot (11) near the ventilation chamber (101). A detachment slot (1001) for the battery (12) to detach is provided at the bottom of the charging slot (11). A partition (20) is provided at the detachment slot (1001). The partition (20) is used to support the battery (12) that is charging normally. A sealing component for sealing the ventilation slot (14) is provided on the side wall of the charging module (10) on the side where the ventilation slot (14) is provided. A triggering mechanism is provided between the sealing component and the partition (20).

2. The drone battery charging box according to claim 1, characterized in that, The inner wall of the charging slot (11) is provided with a charging connection slot (13). The battery (12) is provided with two electrodes (1201), namely a positive electrode (1201) and a negative electrode (1201). The battery (12) is charged after being connected to the charging connection slot (13) through the positive electrode (1201) and the negative electrode (1201). The partition (20) is set in L shape. The vertical part of the partition (20) is used to abut against the rear side of the battery (12) so that it is more tightly connected to the charging connection slot (13).

3. The drone battery charging box according to claim 1, characterized in that, The ventilation chamber (101) has heat dissipation slots (5) on both sides, and a cooling fan (7) is fixedly installed on the fixing plate (8).

4. The drone battery charging box according to claim 1, characterized in that, The explosion-proof isolation chamber (102) is equipped with an aerogel fire extinguisher body (9).

5. A drone battery charging box according to claim 1, characterized in that, The sealing assembly includes a sliding plate (15) that is in close contact with the side wall of the charging module (10). The sliding plate (15) has a docking groove (16) that docks with the ventilation groove (14). A fixing chamber (17) is fixedly installed on the sliding plate (15). A sealing block (19) is slidably installed inside the fixing chamber (17). A spring (18) is provided between the sealing block (19) and the fixing chamber (17).

6. A drone battery charging box according to claim 1, characterized in that, Multiple sets of fixing brackets (22) are fixedly installed on the bottom wall of the charging module (10) with the release groove (1001) on one side. Each set of fixing brackets (22) has two brackets. The two fixing brackets (22) span across the release groove (1001). A limiting strip (21) is slidably installed between the two fixing brackets (22). The limiting strip (21) is set at the bottom end of the partition (20) to support the partition (20). An elastic element (23) is provided between the limiting strip (21) and the fixing brackets (22) on both sides.

7. A drone battery charging box according to claim 1, characterized in that, The triggering mechanism includes multiple servo levers (25) fixedly installed at the bottom of the fixed plate (8). The output ends of the multiple servo levers (25) are fixedly installed with trigger plates (24), and the trigger plates (24) are arranged between the two limit bars (21) of each group.

8. A drone battery charging box according to claim 7, characterized in that, The bottom of the limiting strip (21) is provided with a wedge-shaped inclined surface.

9. A drone battery charging box according to claim 1, characterized in that, The top of the cover (3) has a heat dissipation hole (4) which is connected to the ventilation chamber (101).

10. A drone battery charging box according to claim 1, characterized in that, The upper cover (3) has multiple sealing frames (6) inside, and the multiple sealing frames (6) are matched with the charging slot (11).

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