Aluminum alloy heat dissipation structure for unmanned aerial vehicle
By designing a combination structure of detachable serrated fins and elastic plates, the problem of not being able to replace damaged UAV heat dissipation fins individually has been solved, enabling individual fin removal and efficient heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LVMEI ALUMINUM
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-21
AI Technical Summary
The existing drone heat sink fins cannot be replaced individually when damaged, resulting in high overall replacement costs.
The design incorporates serrated fins and a detachable structure. The combination of extrusion columns and elastic plates enables individual fin removal and replacement. The design of guide rods and extrusion plates ensures efficient heat transfer.
This allows for individual replacement of the fins, reducing maintenance costs and improving heat dissipation efficiency.
Smart Images

Figure CN224146205U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of aluminum alloy technology, and specifically relates to an aluminum alloy heat dissipation structure for unmanned aerial vehicles. Background Technology
[0002] During long-duration flight, drones generate a significant amount of heat due to the continuous operation of components such as motors and electronic devices. If this heat cannot be dissipated in a timely manner, it will severely impact the drone's performance and lifespan. Aluminum alloys, with their excellent thermal conductivity, lightweight properties, and relatively low cost, have become the preferred material for drone heat dissipation structures.
[0003] In traditional technology, the heat-generating components of a drone are bonded together with aluminum alloy, and then the heat is dissipated through fins. However, after prolonged use, when the fins are damaged, the entire drone needs to be replaced, resulting in a significant increase in costs. Utility Model Content
[0004] (1) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an aluminum alloy heat dissipation structure for drones. This aluminum alloy solves the problem that, under existing technologies, heat dissipation fins cannot be replaced individually when they are damaged.
[0006] (2) Technical solution
[0007] To solve the above-mentioned technical problems, this utility model provides an aluminum alloy heat dissipation structure for drones. The aluminum alloy includes a base, a track fixedly connected to the top of the base, fins slidably connected inside the track, the fins having a serrated structure design, a cylinder fixedly connected to the bottom of the inner side of the track, a through groove opened at the top of the cylinder, a limiting piece slidably connected to one end of the inner side of the cylinder, a fixing plate fixedly connected to the outside of the limiting piece, an elastic piece fixedly connected to the top of the fixing plate, a square frame fixedly connected to the end of the elastic piece away from the fixing plate, the connection between the elastic piece and the square frame extending to the outside of the through groove, and a slot opened at the left end of the bottom of the fin corresponding to the position of the elastic piece.
[0008] When using the aluminum alloy of this technical solution, the fin extrusion column impacts the fixed rod, which then extrudes the fixed rod and extrudes the fixed plate. At the same time, the inclined groove scrapes against the square frame, causing the square frame to descend. This allows the elastic sheet and the square frame to fall into the interior of the cylinder, releasing the connection with the slot and separating the track from the fins, making it convenient to disassemble one set of fins.
[0009] Preferably, a first spring is sleeved on the outside of the limiting piece, a fixing rod is fixedly connected to the outside of the fixing plate, and an extrusion column is slidably connected to the end of the fixing rod away from the fixing plate. The extrusion column is slidably connected to the inside of the cylinder.
[0010] Furthermore, a second spring is fitted around the outside of the fixing rod, and the extrusion column extends to the outside of the square frame, with a beveled edge at one end of the extrusion column near the square frame.
[0011] Furthermore, the bottom of the base has a cross groove, inside which a slider is slidably connected. The bottom of the slider is fixedly connected to an extrusion plate, which has a V-shaped structure design.
[0012] Furthermore, a support rod is slidably connected to the inner wall of the cross groove, and a third spring is sleeved on the outside of the support rod. One end of the support rod extends into the interior of the slider and is fixedly connected to the slider.
[0013] Furthermore, a pin is rotatably connected to the bottom of the inner side of the base, an adapter is fixedly connected to the outside of the pin, and a guide rod is rotatably connected to the outside of the adapter.
[0014] Furthermore, the end of the guide rod away from the adapter is rotatably connected to the slider, the surface of the base is coated with a thermally conductive adhesive layer, and both the base and the fins are made of aluminum alloy.
[0015] (3) Beneficial effects
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. The aluminum alloy of this utility model uses an elastic sheet design. The fin extrusion column impacts the fin, and then the extrusion column extrudes the fixing rod, so that the fixing rod extrudes the fixing plate. At the same time, the inclined groove scrapes the square frame, and the square frame descends, so that the elastic sheet and the square frame fall into the interior of the cylinder, releasing the connection with the slot, realizing the separation between the track and the fin, and facilitating the disassembly of one set of fins.
[0018] 2. The aluminum alloy of this utility model is designed with an extrusion plate. The extrusion plate is extruded by moving the third spring, which in turn causes the guide rod to swing and the adapter to rotate. This allows the remaining three sets of guide rods to rotate synchronously, and the four sets of extrusion plates to unfold synchronously. Then, the heating element is placed in the area between the extrusion plates. Finally, the extrusion plate is reset by the third spring and fits against the heating element to facilitate heat conduction. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device of this utility model;
[0020] Figure 2 This is a schematic diagram of the overall front structure of the device of this utility model;
[0021] Figure 3 This is a schematic diagram of the track structure of the device of this utility model;
[0022] Figure 4 This is a schematic diagram of the fin structure of the device of this utility model;
[0023] Figure 5 This is a schematic diagram of the internal structure of the cylindrical part of the device of this utility model;
[0024] Figure 6 This is a schematic diagram of the guide rod structure of the device of this utility model;
[0025] The markings in the attached diagram are as follows: 1. Base; 101. Thermally conductive adhesive layer; 2. Track; 3. Fin; 4. Cylinder; 5. Limiting plate; 6. Fixing plate; 7. Elastic plate; 8. Square frame; 9. First spring; 10. Fixing rod; 11. Extrusion column; 12. Second spring; 13. Bevel; 14. Cross groove; 15. Extrusion plate; 16. Third spring; 17. Insert post; 18. Adapter frame; 19. Guide rod. Detailed Implementation
[0026] This specific embodiment is an aluminum alloy heat dissipation structure for a drone, and its structural schematic diagram is shown below. Figure 1-6 As shown, the aluminum alloy includes a base 1, a track 2 fixedly connected to the top of the base 1, and fins 3 slidably connected inside the track 2. The fins 3 have a serrated structure design. A cylinder 4 is fixedly connected to the bottom of the inner side of the track 2. A through groove is opened on the top of the cylinder 4. A limiting piece 5 is slidably connected to one end of the inner side of the cylinder 4. A fixing plate 6 is fixedly connected to the outside of the limiting piece 5. An elastic piece 7 is fixedly connected to the top of the fixing plate 6. A square frame 8 is fixedly connected to the end of the elastic piece 7 away from the fixing plate 6. The connection between the elastic piece 7 and the square frame 8 extends to the outside of the through groove. The left end of the bottom of the fin 3 is connected to the elastic piece 7. A slot is provided at the corresponding position of the plate 7. By installing the base 1 to the designated position of the drone, the base 1 is attached to the heat-generating parts of the drone, and the heat is conducted to the outside of the fin 3. The serrated fin 3, with its special shape, can more effectively increase the heat dissipation area and more effectively exchange heat with the surrounding environment compared with the traditional smooth fin, thereby improving the heat dissipation efficiency. After the fin 3 is inserted into the inside of the track 2, the connection between the elastic plate 7 and the square frame 8 is outside the through groove and inserted into the inside of the slot, thus completing the installation of the fin 3 inside the track 2.
[0027] In this embodiment, a first spring 9 is sleeved on the outside of the limiting piece 5, and a fixing rod 10 is fixedly connected to the outside of the fixing plate 6. A pressing column 11 is slidably connected to the end of the fixing rod 10 away from the fixing plate 6. The pressing column 11 is slidably connected to the inside of the cylinder 4. A second spring 12 is sleeved on the outside of the fixing rod 10. The pressing column 11 extends to the outside of the square frame 8. A bevel 13 is opened at the end of the pressing column 11 near the square frame 8. When the fin 3 is damaged, the fin 3 is pressed, and then the pressing column 11 impacts the fin 3. Then the pressing column 11 presses the fixing rod 10, and then presses the second spring 12, so that the fixing rod 10 presses the fixing plate 6. At the same time, the bevel 13 scrapes the square frame 8. Meanwhile, under the action of the first spring 9, the square frame 8 of the limiting piece 5 descends, so that the elastic piece 7 and the square frame 8 fall into the inside of the cylinder 4, releasing the connection with the slot, and separating the track 2 from the fin 3, so as to facilitate the disassembly of one set of fins 3.
[0028] In addition, in this embodiment, a cross groove 14 is provided at the bottom of the base 1. A slider is slidably connected inside the cross groove 14. An extrusion plate 15 is fixedly connected to the bottom of the slider. The extrusion plate 15 has a V-shaped structure design. A support rod is slidably connected to the inner wall of the cross groove 14. A third spring 16 is sleeved on the outside of the support rod. One end of the support rod extends into the inside of the slider and is fixedly connected to the slider. A pin 17 is rotatably connected to the bottom of the inner side of the base 1. An adapter frame 18 is fixedly connected to the outside of the pin 17. A guide rod is rotatably connected to the outside of the adapter frame 18. 19. By moving the extrusion plate 15, the extrusion plate 15 slides inside the cross groove 14 and extrudes the third spring 16, which in turn causes the guide rod 19 to swing and applies a pulling force to the adapter frame 18. Under the action of the insertion post 17, the adapter frame 18 rotates, thereby enabling the remaining three sets of guide rods 19 to rotate synchronously and the four sets of extrusion plates 15 to unfold synchronously. Then, the heating element is placed in the area between the extrusion plates 15. Finally, the extrusion plate 15 is reset by the third spring 16 and fits against the heating element to facilitate heat conduction.
[0029] Furthermore, in this embodiment, the end of the guide rod 19 away from the adapter 18 is rotatably connected to the slider, the surface of the base 1 is coated with a thermally conductive adhesive layer 101, and both the base 1 and the fins 3 are made of aluminum alloy. The thermally conductive adhesive layer 101 is designed to further improve the thermal conductivity.
[0030] When using the device of this technical solution, the base 1 is installed at the designated position of the drone, and the base 1 is attached to the heat-generating components of the drone. At the same time, the heat is conducted to the outside of the fins 3. The serrated fins 3, due to their special shape, can more effectively increase the heat dissipation area and more effectively exchange heat with the surrounding environment compared to the traditional smooth ones, thereby improving the heat dissipation efficiency. After the fins 3 are inserted into the inside of the track 2, the connection between the elastic piece 7 and the square frame 8 is outside the through groove and inserted into the inside of the slot, completing the installation of the fins 3 inside the track 2. By squeezing the fins 3, the fins 3 are impacted by the squeezing column 11, which then squeezes the fixing rod 10, and then squeezes the second spring 12, so that the fixing rod 10 squeezes the fixing plate 6. At the same time, the bevel 13 scrapes against the square frame 8, and the limiting piece 5 is in the first spring. Under the action of spring 9, square frame 8 descends, allowing elastic sheet 7 and square frame 8 to fall into the interior of cylinder 4, releasing the connection with the slot, and separating track 2 from fins 3, facilitating the disassembly of one set of fins 3. By moving the extrusion plate 15, the extrusion plate 15 slides inside the cross groove 14 and extrudes the third spring 16, causing guide rod 19 to swing and apply tension to adapter 18. Under the action of insert post 17, adapter 18 rotates, thereby enabling the remaining three sets of guide rods 19 to rotate synchronously and enabling the four sets of extrusion plates 15 to unfold synchronously. Then, the heating element is placed in the area between the extrusion plates 15. Finally, the third spring 16 resets the extrusion plate 15 and makes it fit with the heating element, facilitating heat conduction. Compared with existing aluminum alloys, this utility model improves the overall practicality of aluminum alloys through design.
[0031] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.