Heat dissipation structure of unmanned aerial vehicle

Abstract

The utility model discloses a heat dissipation structure of unmanned plane relates to unmanned plane technical field, specifically includes the fixed ring of unmanned plane cabin wall connection, the inner chamber swing joint of fixed ring has the carousel, the middle part of carousel is connected with telescopic heat dissipation fin structure, telescopic heat dissipation fin structure includes with carousel detachable connection fixed part, the fixed part includes rectangle section and disc section, disc section is located in the unmanned plane cabin, the bottom end of rectangle section is located unmanned plane cabin outside, and rectangle section is hollow structure. The application utilizes telescopic heat dissipation fin structure to realize the efficient export of the heat in unmanned plane cabin, and the inclination angle and length of telescopic heat dissipation fin structure can be adjusted according to the need, ensure that the application can maintain the best air circulation efficiency and heat dissipation performance under the different flight attitudes of unmanned plane, improve the adaptability and use reliability of the application.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically a heat dissipation structure for UAVs. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and their own program control devices, or operated autonomously by an onboard computer, either completely or intermittently. During flight, the various electrical components inside the UAV cabin continuously generate heat. If this heat accumulates inside the aircraft, it will seriously affect the working stability and lifespan of the electrical components. Therefore, the heat dissipation requirements of the UAV cabin are crucial.

[0003] In the current technology, one of the most widely used heat dissipation solutions in the field of drones is passive heat dissipation using heat sink fins. This type of solution typically involves directly attaching the heat sink fins to the surface of the heat-generating element, or connecting them to the heat-generating element via a thermally conductive substrate. The heat sink fins increase the contact area with the air, dissipating heat to the external environment through heat conduction and natural convection. However, traditional heat sink fins often use a fixed structure, resulting in a limited heat dissipation area. This leads to a significant reduction in heat dissipation efficiency under high-power operation or high-temperature environments, making it difficult to meet the demand for rapid heat dissipation. Furthermore, the direct contact between the heat sink fins and the air makes them susceptible to the adhesion of dust and other impurities, further affecting their performance. Therefore, this application proposes a heat dissipation structure for drones. Utility Model Content

[0004] This invention provides a heat dissipation structure for drones, solving the problems mentioned in the background art where fixed heat dissipation fins are difficult to adapt to various dynamic operating conditions of drones; and where dust and other impurities in the air easily adhere to the heat dissipation fins, affecting their performance.

[0005] This utility model provides the following technical solution: a heat dissipation structure for a drone, including a fixed ring connected to the drone cabin wall, a turntable movably connected to the inner cavity of the fixed ring, a telescopic heat dissipation fin structure connected to the middle of the turntable, the telescopic heat dissipation fin structure including a fixed part detachably connected to the turntable, the fixed part including a rectangular section and a disc section, the disc section being located inside the drone cabin, the bottom end of the rectangular section being located outside the drone cabin, the rectangular section being a hollow structure, an extension section movably connected to the inner cavity of the rectangular section, a connecting part being connected to the top of the extension section, the connecting part being fitted against the inner wall of the rectangular section; The turntable is provided with an impurity cleaning structure, which includes an upper cleaning ring adapted to the rectangular section, a lower cleaning ring adapted to the extended section, a connecting rod connecting the upper cleaning ring and the lower cleaning ring, and a guide tube connected to the turntable. The connecting rod is movably connected to the guide tube, and the connecting rod is connected to the guide tube through a first telescopic structure.

[0006] Preferably, a connecting block is connected to the bottom of the connecting rod, and the connecting rod is connected to the lower cleaning ring through the connecting block. The connecting block has a hollow structure, and an insert rod is connected to the inner cavity of the connecting block through a second telescopic structure. A through hole adapted to the insert rod is provided on the side of the lower cleaning ring near the insert rod.

[0007] Preferably, the bottom end of the extension section near the connecting block is provided with a socket, and the plug rod is adapted to the socket.

[0008] Preferably, a first gear is provided on one side of the fixed ring, and a second gear is connected to the outer side wall of the turntable, with the first gear meshing with the second gear.

[0009] Preferably, the top of the lower cleaning ring is connected to an elastic ring, and the top of the elastic ring is connected to the bottom of the rectangular segment.

[0010] Preferably, there is an isolation gap between the bottom of the disc segment and the turntable.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The heat dissipation structure of the UAV utilizes a telescopic heat dissipation fin structure to achieve efficient heat dissipation from the UAV cabin. Furthermore, the tilt angle and length of the telescopic heat dissipation fin structure can be adjusted as needed to ensure that the UAV can maintain optimal airflow efficiency and heat dissipation performance under different flight attitudes, thereby improving the adaptability and reliability of the application.

[0012] 2. The heat dissipation structure of the UAV has a self-cleaning function, which can wipe away impurities adhering to the surface of the telescopic heat dissipation fin structure, ensure the heat conduction between the telescopic heat dissipation fin structure and the air, ensure the stability of the heat dissipation performance of this application, and reduce the erosion of the telescopic heat dissipation fin structure by impurities, thus extending the service life of the telescopic heat dissipation fin structure. Attached Figure Description

[0013] Figure 1 This is a front view of a heat dissipation structure for a drone proposed in this utility model; Figure 2 The structure of this utility model Figure 1 Explosion diagram; Figure 3 This is a schematic cross-sectional view of the rectangular segment of the structure of this utility model; Figure 4 This is a schematic diagram of the impurity cleaning structure of this utility model; Figure 5 The structure of this utility model Figure 4 Explosion diagram; Figure 6 This is a cross-sectional schematic diagram of the connecting block of this utility model; Figure 7 This is a schematic diagram showing the connection between the structure of this utility model and the cabin wall of the UAV; Figure 8 The structure of this utility model Figure 7 Diagram showing the view from below.

[0014] In the diagram: 1. Fixing ring; 2. Turntable; 3. Rectangular segment; 4. Disc segment; 5. Insertion hole; 6. First telescopic structure; 7. Connecting rod; 8. Connecting block; 9. Elastic ring; 10. Lower cleaning ring; 11. Guide tube; 12. First gear; 13. Second gear; 14. Upper cleaning ring; 15. Extension section; 16. Connecting part; 17. Second telescopic structure; 18. Insertion rod; 19. Through hole; 20. Isolation gap. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model provides an embodiment: Please refer to Figures 1-8 A heat dissipation structure for a drone includes a fixed ring 1 connected to the drone's cabin wall. A turntable 2 is movably connected to the inner cavity of the fixed ring 1. A first gear 12 is provided on one side of the fixed ring 1, and the first gear 12 is movably connected to the fixed ring 1. A second gear 13 is connected to the outer wall of the turntable 2, and the first gear 12 and the second gear 13 mesh. When the heat dissipation structure is installed on the drone's cabin wall, the first gear 12 is movably connected to the drone's cabin wall. When a person skilled in the art drives the first gear 12 to rotate using a drive structure such as a motor, the first gear 12 can drive the turntable 2 to rotate through the meshing second gear 13.

[0017] The turntable 2 is connected to a telescopic heat dissipation fin structure in the middle. The telescopic heat dissipation fin structure includes a fixed part that is detachably connected to the turntable 2. The fixed part includes a rectangular section 3 and a disc section 4. When in use, the disc section 4 is located inside the UAV cabin, and the bottom end of the rectangular section 3 is located outside the UAV cabin. When in use, the heat inside the cabin can be discharged sequentially through the disc section 4 and the rectangular section 3. Furthermore, the setting of the disc section 4 can increase the thermal contact area of ​​the fixed part and allow multiple heat sources around it to contact the fixed part, thereby forming a phenomenon of concentrated heat dissipation from multiple heat sources, effectively improving heat dissipation efficiency and ensuring the thermal management performance inside the cabin.

[0018] There is an isolation gap 20 between the bottom of the disc section 4 and the turntable 2. The height of the isolation gap 20 can be set according to the requirements and is not limited here. The isolation gap 20 facilitates the flow of air between the disc section 4 and the turntable 2, maintains the surface temperature of the disc section, ensures the temperature difference between it and the heating element, and ensures the heat transfer efficiency.

[0019] The rectangular segment 3 is a hollow structure. An extension segment 15 is movably connected to the inner cavity of the rectangular segment 3. A connecting part 16 is connected to the top of the extension segment 15, and the connecting part 16 is in contact with the inner wall of the rectangular segment 3. Heat on the rectangular segment 3 can be transferred to the extension segment 15 through the connecting part 16, and heat on the rectangular segment 3 can also be directly transferred to the extension segment 15 in contact with it. The connecting part 16 is designed with a high thermal conductivity material. The heat conduction rate of the connecting part 16 is better than that of the rectangular segment 3 and the extension segment 15. Therefore, when the contact area between the rectangular segment 3 and the extension segment 15 is reduced, the connecting part 16 can still effectively maintain the overall heat conduction rate of the telescopic heat dissipation fin structure. The materials of the connecting part 16, the rectangular segment 3 and the extension segment 15 can be set according to the requirements and are not limited here.

[0020] In addition, the connecting part 16 can limit the extension section 15, preventing it from separating from the rectangular section 3. There is damping between the connecting part 16 and the rectangular section 3. When the position of the extension section 15 needs to be adjusted, the limiting force can be released simply by overcoming the damping force. After the external force is removed, the extension section 15 will remain in the set position, ensuring the stability and adjustability of the heat dissipation structure. The damping between the connecting part 16 and the rectangular section 3 can be set according to requirements and is not limited here.

[0021] The turntable 2 is equipped with an impurity cleaning structure, which includes an upper cleaning ring 14 adapted to the rectangular section 3, a lower cleaning ring 10 adapted to the extension section 15, a connecting rod 7 connecting the upper cleaning ring 14 and the lower cleaning ring 10, and a guide tube 11 connected to the turntable 2. The connecting rod 7 is located in the inner cavity of the guide tube 11 and is movably connected to the inner cavity of the guide tube 11. The connecting rod 7 is connected to the guide tube 11 through a first telescopic structure 6. In embodiment 1, the first telescopic structure 6 is a miniature electric telescopic rod, and its model can be set according to requirements, which is not limited here. When the first telescopic structure 6 extends or retracts, the first telescopic structure 6 can drive the connecting rod 7 to move. The connecting rod 7 drives the lower cleaning ring 10 and the upper cleaning ring 14 connected to it to move simultaneously. When the upper cleaning ring 14 moves, it can wipe away the impurities adhering to the surface of the rectangular section 3, and the lower cleaning ring 10 can wipe away the impurities adhering to the surface of the extension section 15, so as to avoid impurities affecting the heat dissipation efficiency of the telescopic heat dissipation fin structure. The materials of the upper cleaning ring 14 and the lower cleaning ring 10 can be flexibly configured according to actual application requirements. For example, a sponge material with good adsorption and softness can be used. Through the flexible contact and adsorption characteristics of the sponge, the wiping and cleaning function of the telescopic heat dissipation fin structure can be efficiently achieved. The guide tube 11 is detachably connected to the turntable 2, which facilitates the replacement of the impurity cleaning structure.

[0022] A spring ring 9 is connected to the top of the lower cleaning ring 10. The top of the spring ring 9 is connected to the bottom of the rectangular segment 3. Because of the spring ring 9, when the lower cleaning ring 10 moves away from the rectangular segment 3, the spring ring 9 is in a stretched state, thus blocking the extension segment 15 and preventing impurities separated from the rectangular segment 3 from falling onto the extension segment 15. When the lower cleaning ring 10 moves upward, the spring ring 9 can contract under its own rebound force. After the lower cleaning ring 10 resets, the spring ring 9 can return to its initial state, ensuring structural stability and functional reliability. The material of the spring ring 9 can be set according to requirements and is not limited here.

[0023] A connecting block 8 is connected to the bottom of the connecting rod 7. The connecting rod 7 is connected to the lower cleaning ring 10 through the connecting block 8. The connecting block 8 has a hollow structure. The inner cavity of the connecting block 8 is connected to the insertion rod 18 through the second telescopic structure 17. The lower cleaning ring 10 has a through hole 19 adapted to the insertion rod 18 on the side near the insertion rod 18. In embodiment 2, the second telescopic structure 17 is a miniature electric telescopic rod. The model of the second telescopic structure 17 can be set according to requirements and is not limited here. With the setting of the second telescopic structure 17, when the second telescopic structure 17 retracts, it can drive the insertion rod 18 connected to it to move. The insertion rod 18 can be inserted into the inner cavity of the lower cleaning ring 10 through the through hole 19. When the insertion rod 18 is separated from the through hole 19, when the lower cleaning ring 10 cleans the extension section 15, the squeezing force between the lower cleaning ring 10 and the extension section 15 will cause the inner wall of the lower cleaning ring 10 to deform, causing the originally through hole 19 to close due to the deformation of the inner wall, thus ensuring the effectiveness of the lower cleaning ring 10.

[0024] The bottom end of the extension section 15 near the connecting block 8 is provided with a socket 5. The plug rod 18 is adapted to the socket 5. When the socket 5 is aligned with the through hole 19, the plug rod 18 can be inserted into the socket 5. When the lower cleaning ring 10 moves, it can drive the extension section 15 to move, so as to realize the extension and retraction of the telescopic heat dissipation fin structure.

[0025] All electrical components involved in this application are existing technologies. Those skilled in the art can select appropriate models of electrical components according to their needs. No restrictions or elaborations are made here. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies are connected by wires. According to the actual situation, appropriate controllers are selected to meet control requirements. For specific connections and control sequences, please refer to the description below. The electrical connections between each electrical component are completed in the order of their operation. The detailed connection methods are well-known technologies in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0026] In summary: When using the heat dissipation structure of this drone, the fixing ring 1 is connected to the drone cabin wall, the disc section 4 is located inside the drone cabin, the rectangular section 3 is located outside the drone, and a drive structure such as a motor is installed on the drone. The output shaft end of the drive structure is connected to the first gear 12, which can be driven to rotate by the drive structure. The flat shell of the heat-generating device (such as the battery and the motor controller ESC) inside the drone cabin can be connected to the top of the disc section 4 through a thermally conductive silicone pad. The heat on the heat-generating device can be conducted to the telescopic heat dissipation fin structure through the thermally conductive silicone pad.

[0027] In use, the heat inside the drone cabin is efficiently dissipated through the disc section 4, rectangular section 3, and extension section 15. Furthermore, the controller of this application can adjust the tilt angle of the telescopic cooling fin structure as needed. A drive structure rotates the first gear 12, which in turn rotates the turntable 2 via a meshing second gear 13. The turntable 2 then rotates the telescopic cooling fin structure, thereby changing its tilt angle and ensuring its effectiveness. When the length of the telescopic cooling fin structure needs to be changed, the first telescopic structure 6 moves the connecting rod 7, which in turn moves the connecting block 8 until the through hole 19 is aligned with the insertion hole 5. The second telescopic structure 17 then moves the insertion rod 18, which can be inserted into the insertion hole 5 through the through hole 19. Once the insertion rod 18 is inserted, the second telescopic structure 17 stops extending. When the first telescopic structure 6 moves the connecting rod 7, the connecting rod 7, through the connecting block 8 and the insertion rod 18, moves the extension section 15, thus changing the length of the telescopic cooling fin structure.

[0028] When the telescopic heat dissipation fin structure needs to be cleaned, the first telescopic structure 6 drives the connecting rod 7 to move. The connecting rod 7 drives the lower cleaning ring 10 and the upper cleaning ring 14 connected to it to move simultaneously. When the upper cleaning ring 14 moves, it can wipe away the impurities adhering to the surface of the rectangular section 3, and the lower cleaning ring 10 can wipe away the impurities adhering to the surface of the extension section 15, thereby cleaning the telescopic heat dissipation fin structure and preventing impurities from affecting the heat dissipation efficiency of the telescopic heat dissipation fin structure.

[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each structure adopt conventional technical means such as bolt connection in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology. The materials and specifications of each component can be selected according to the requirements and are not limited here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure of a UAV, comprising a fixing ring (1) connected with a UAV cabin wall, characterized in that: The inner cavity of the fixed ring (1) is movably connected to a turntable (2). The middle part of the turntable (2) is connected to a telescopic heat dissipation fin structure. The telescopic heat dissipation fin structure includes a fixed part that is detachably connected to the turntable (2). The fixed part includes a rectangular section (3) and a circular section (4). The circular section (4) is located inside the UAV cabin. The bottom end of the rectangular section (3) is located outside the UAV cabin. The rectangular section (3) is a hollow structure. The inner cavity of the rectangular section (3) is movably connected to an extension section (15). The top of the extension section (15) is connected to a connecting part (16). The connecting part (16) is attached to the inner wall of the rectangular section (3). The turntable (2) is provided with an impurity cleaning structure, which includes an upper cleaning ring (14) adapted to the rectangular section (3), a lower cleaning ring (10) adapted to the extension section (15), a connecting rod (7) connecting the upper cleaning ring (14) and the lower cleaning ring (10), and a guide tube (11) connected to the turntable (2). The connecting rod (7) is movably connected to the guide tube (11), and the connecting rod (7) is connected to the guide tube (11) through a first telescopic structure (6). 2.The heat dissipation structure of the unmanned aerial vehicle according to claim 1, wherein: The bottom of the connecting rod (7) is connected to a connecting block (8). The connecting rod (7) is connected to the lower cleaning ring (10) through the connecting block (8). The connecting block (8) is a hollow structure. The inner cavity of the connecting block (8) is connected to an insert rod (18) through a second telescopic structure (17). The lower cleaning ring (10) has a through hole (19) that is adapted to the insert rod (18) on the side near the insert rod (18).

3. The heat dissipation structure of the unmanned aerial vehicle according to claim 2, wherein: The extension section (15) has a socket (5) at its bottom end near the connecting block (8), and the plug (18) is adapted to the socket (5).

4. The heat dissipation structure of the unmanned aerial vehicle according to claim 1, wherein: A first gear (12) is provided on one side of the fixed ring (1), and a second gear (13) is connected to the outer wall of the turntable (2). The first gear (12) meshes with the second gear (13).

5. The heat dissipation structure of the unmanned aerial vehicle according to claim 1, wherein: The top of the lower cleaning ring (10) is connected to an elastic ring (9), and the top of the elastic ring (9) is connected to the bottom of the rectangular segment (3).

6. The heat dissipation structure of the unmanned aerial vehicle according to claim 1, wherein: The bottom of the disc segment (4) has an isolation gap (20) between it and the turntable (2).

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