A power supply control box structure of a drone

Abstract

The utility model provides a kind of unmanned aerial vehicle power control box structure, including base, cover plate and be located at the several heat dissipation ribs of cover plate buckled to base, further including mounting plate, the both sides of base are all provided with through slot, two mounting plates are all installed in two through slots, and mounting plate is provided with vent, for the intercommunication inside base and external environment.In the vent of mounting plate, air circulation between the inside of base and the external environment can be promoted, heat is discharged from the inside of power control box more quickly, and cooler external air can also be introduced, forming a convection cooling mechanism, further improving the heat dissipation efficiency, effectively reducing the operating temperature inside the power control box.Compared to the single heat dissipation rib cooling method, the present solution can effectively improve the cooling performance without increasing the physical size of the control box, solving the problem of difficult to increase the size of the shell in a compact space to increase the cooling area.

Description

Technical Field

[0001] This utility model relates to the field of power control box technology, and in particular to a power control box structure for a drone. Background Technology

[0002] In recent years, drones have been widely used in many fields such as aerial surveying and mapping, agricultural plant protection, logistics and distribution, power line inspection, and emergency rescue. As the heart of a drone, the power system provides a stable and reliable power supply for its key components such as flight control, navigation, communication, sensors, and motors, directly affecting the drone's flight performance, mission execution capability, and safety. The power control box (or power distribution unit, power management box) is the core hub component of the power system, responsible for functions such as battery power input management, multi-output distribution, voltage conversion, charge and discharge control, circuit protection, and status monitoring.

[0003] Because power control boxes integrate power devices such as power MOSFETs, DC-DC converter modules, and high-current connectors, they generate a significant amount of heat during operation. Especially in high-temperature environments or under high-power output conditions, accumulated heat can lead to performance degradation, shortened lifespan, or even failure of components. Therefore, power control boxes are equipped with heat dissipation structures. Currently, the mainstream heat dissipation method involves arranging several heat dissipation fins on the surface of the power control box. During drone flight, airflow cools these fins, which absorb heat. However, relying solely on the outer casing for heat dissipation limits the effective heat dissipation area, which is constrained by the physical size and shape of the control box. The space available for the power control box is often very compact, making it difficult to increase the heat dissipation area by enlarging the casing size, thus reducing heat dissipation efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a power control box structure for unmanned aerial vehicles (UAVs), which solves the problem of poor heat dissipation in existing power control boxes.

[0005] According to the embodiments of this utility model, the following technical solution is adopted:

[0006] A power control box structure for a drone includes a base, a cover plate fastened to the base and several heat dissipation fins provided on the cover plate, and a mounting plate. Both sides of the base are provided with through slots, and two mounting plates are installed in the two through slots. The mounting plates are provided with ventilation openings for connecting the inside of the base with the external environment.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] The mounting plate has ventilation openings, which can promote air circulation between the base and the external environment, allowing heat to be expelled from the power control box more quickly. It can also introduce cooler external air to form a convection cooling mechanism, further improving heat dissipation efficiency and effectively reducing the operating temperature inside the power control box. Compared with the single heat dissipation fin method, this solution can effectively improve heat dissipation performance without increasing the physical size of the control box, solving the problem of difficulty in increasing the size of the outer shell to increase the heat dissipation area in a compact space.

[0009] Preferably, the cross-section of the vent is Z-shaped and includes a second channel located inside the base, a first channel located outside the base, and a third channel connecting the first channel and the second channel.

[0010] Preferably, the axis of the first channel has an angle α with the bottom surface of the mounting plate.

[0011] Preferably, the mounting plate is provided with several fixing blocks, each of which has through holes for bolts to pass through and fix to the base.

[0012] Preferably, the third channel is provided with a mounting block, and the mounting block is provided with a filter element.

[0013] Preferably, the mounting block is slidably inserted through the mounting plate, and the end of the mounting block is engaged with the inside of the third channel.

[0014] Preferably, elastic blocks are provided on both sides of the mounting block, and the elastic blocks are engaged with the outside of the vent. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the control box structure in an embodiment of this utility model.

[0016] Figure 2 This is a cross-sectional view of the control box structure in an embodiment of the present invention.

[0017] Figure 3 This is a cross-sectional structural diagram of the ventilation opening in an embodiment of the present invention.

[0018] Figure 4 This is a three-dimensional structural diagram of the mounting block in an embodiment of the present invention.

[0019] In the above attached diagram: 1. Base; 2. Cover plate; 201. Heat dissipation fins; 3. Mounting plate; 4. Ventilation opening; 401. First channel; 402. Second channel; 403. Third channel; 404. Fixing block; 5. Mounting block; 501. Filter element; 502. Elastic block. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] This utility model embodiment proposes a power control box structure for a drone, including a base 1, a cover plate 2 fastened to the base 1 and a plurality of heat dissipation fins 201 provided on the cover plate 2, and also includes a mounting plate 3. Both sides of the base 1 are provided with through slots, and the two mounting plates 3 are installed in the two through slots. The mounting plates 3 are provided with ventilation openings 4 for connecting the inside of the base 1 with the external environment.

[0022] In the embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the original cover plate 2 structure is maintained. When heat is generated inside the power supply box, it can be partially transferred to the cover plate 2, and heat can be exchanged with the outside through several heat dissipation fins 201 of the cover plate 2 to achieve heat dissipation.

[0023] Secondly, through slots are provided on both sides of the base 1, connecting the external environment with the inside of the base 1. The two through slots can be aligned or staggered, but they must be located on different sides of the base 1. Mounting plates 3 are installed on the through slots. Preferably, one of the through slots is located at the front of the drone. When the drone moves forward, the airflow from the outside can enter the power control box through the ventilation port 4 of the mounting plate 3, thereby promoting air circulation between the inside of the power control box and the external environment. This allows heat to be expelled from the power control box more quickly and also introduces cooler air from the outside, forming a convection cooling mechanism, further improving heat dissipation efficiency and effectively reducing the operating temperature inside the power control box. Compared to a single heat dissipation fin 201, this method effectively improves heat dissipation performance without increasing the physical size of the control box, solving the problem of difficulty in increasing the size of the outer shell to increase the heat dissipation area in a compact space. Based on the above, the base 1 can also be installed with the two through slots located on the left and right sides of the drone, respectively.

[0024] Specifically, such as Figure 3 As shown, the cross-section of the vent 4 is Z-shaped and includes a second channel 402 located inside the base 1, a first channel 401 located outside the base 1, and a third channel 403 connecting the first channel 401 and the second channel 402. The Z-shaped vent 4 ensures that, for the air intake side, the height of the first channel 401 used for air intake is significantly lower than the height of the second channel 402 used for air exhaust. This helps prevent external dust and water droplets from directly entering the power control box, providing a certain degree of protection.

[0025] Furthermore, the axis of the first channel 401 has an angle α with the bottom surface of the mounting plate 3. α is between 10° and 15°, preferably 15°. The downward tilt of the first channel 401 gives the airflow a certain directionality and guidance when it enters the control box, which can better follow the direction of the external airflow during the flight of the UAV, helping to improve the airflow introduction efficiency. At the same time, it makes it less likely for water droplets to directly enter the control box in a straight line along each channel.

[0026] Specifically, such as Figure 1 and Figure 3 As shown, the mounting plate 3 is provided with several fixing blocks 404, each of which has through holes for bolts to pass through and fix to the base 1. The fixing blocks 404 achieve a stable, reliable and easy-to-assemble connection between the mounting plate 3 and the base 1, which facilitates product maintenance.

[0027] Based on the above solutions, such as Figure 3 and Figure 4 As shown, the third channel 403 is equipped with a mounting block 5, and the mounting block 5 is equipped with a filter element 501. Under the action of the filter element 501, the air entering the control box through the vent 4 can be filtered, effectively intercepting dust, particulate matter and other pollutants in the outside air, ensuring the cleanliness of the electronic components inside the power control box, and preventing poor heat dissipation or electrical short circuits caused by dust accumulation. Specifically, the filter element 501 can be made of dustproof and waterproof materials, such as glass fiber coalescing filter element or synthetic fiber coalescing filter element. In high humidity or rainy environments, the filter element 501 can work with the vent 4 to achieve the function of being breathable but waterproof, reducing the entry of moisture into the control box and preventing the circuit from becoming damp and causing a decrease in insulation performance or corrosion.

[0028] Specifically, such as Figure 3 As shown, the mounting block 5 is slidably inserted through the mounting plate 3, and the end of the mounting block 5 is engaged with the inner side of the third channel 403. Since the mounting block 5 can be slidably inserted through the mounting plate 3, the maintenance of the filter element 501 is very convenient. The filter element 501 can be taken out by simply pulling out the mounting block 5, making it convenient to replace or clean it.

[0029] Meanwhile, to ensure the stability of the installation of the mounting block 5, elastic blocks 502 are provided on both sides of the mounting block 5. The elastic blocks 502 are snapped onto the outside of the vent 4. The elastic blocks 502 can be spring sheets or other elastic structures. When elastic sheets are used, it is not necessary to cut grooves on the side of the vent 4. After the mounting block 5 is assembled in place, the side of the vent 4 can squeeze the elastic blocks 502, thereby deforming the elastic blocks 502 and pressing the elastic blocks 502 against the side of the vent 4. Fixing is achieved through the friction between the elastic blocks 502 and the side of the vent 4, preventing the mounting block 5 from shifting or falling off due to vibration or airflow impact.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An unmanned aerial vehicle power supply control box structure, comprising a base (1), a cover plate (2) buckled to the base (1) and a plurality of heat dissipation ribs (201) provided on the cover plate (2), characterized in that, It also includes mounting plates (3), and through slots are provided on both sides of the base (1). The two mounting plates (3) are installed in the two through slots, and the mounting plates (3) are provided with ventilation openings (4) for connecting the inside of the base (1) with the external environment.

2. The power control box structure of claim 1, wherein, The cross-section of the vent (4) is Z-shaped and includes a second channel (402) located inside the base (1), a first channel (401) located outside the base (1), and a third channel (403) connecting the first channel (401) and the second channel (402).

3. The power control box structure of claim 2, wherein, The axis of the first channel (401) has an angle α with the bottom surface of the mounting plate (3).

4. The power control box structure of claim 2 or 3, wherein, The mounting plate (3) is provided with a plurality of fixing blocks (404), and each of the fixing blocks (404) has through holes for inserting bolts to fix and connect with the base (1).

5. The power control box structure of claim 2, wherein, The third channel (403) is provided with a mounting block (5), and the mounting block (5) is provided with a filter element (501).

6. The power control box structure of claim 5, wherein, The mounting block (5) is slidably inserted through the mounting plate (3), and the end of the mounting block (5) is engaged with the inside of the third channel (403).

7. The power control box structure of claim 6, wherein, Both sides of the mounting block (5) are provided with elastic blocks (502), and the elastic blocks (502) are snapped onto the outside of the vent (4).

Images