Unmanned aerial vehicle heat dissipation device
By filling the space between the drone's motherboard and mid-frame with thermally conductive adhesive and designing a robust connection structure, the problem of poor heat conduction paths in traditional drone heat dissipation structures has been solved, achieving efficient heat dissipation and improved stability, and extending the lifespan of electronic components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI AIR FUTURE AIRCRAFT CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional drone heat dissipation structures use a single rubber pad to isolate the motherboard from the fuselage frame, which cannot effectively establish a heat conduction path. This causes heat to accumulate in the motherboard area, resulting in poor heat dissipation channels and affecting the performance and lifespan of electronic components.
Thermally conductive adhesive is used to fill the gap between the top of the rubber sleeve and the middle frame and motherboard, establishing a heat conduction path from the motherboard to the middle frame. The design of the middle frame and bracket enhances the connection stability, and the combination of metal cavity and heat dissipation fin structure accelerates heat dissipation.
It effectively improves the heat dissipation channel, prevents heat from accumulating in the motherboard area, improves heat dissipation efficiency, enhances the stability and vibration resistance of the heat dissipation device, and extends the service life of electronic components.
Smart Images
Figure CN224131334U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drone heat dissipation technology, and more specifically, to a drone heat dissipation device. Background Technology
[0002] With the rapid development of drone swarm performance technology, large-scale formation flight has become a core display format for light shows, celebrations, and other events.
[0003] The motherboard of a swarm performance drone, as the core control component, integrates a large number of electronic chips and circuits. During the drone swarm performance, a lot of heat is generated. If this heat cannot be dissipated in a timely and effective manner, it will cause the motherboard temperature to be too high, thereby affecting the performance and lifespan of electronic components. Traditional heat dissipation structures use a single rubber pad to isolate the motherboard from the fuselage frame, which cannot effectively establish a heat conduction path, causing heat to accumulate in the motherboard area and resulting in poor heat dissipation channels. Utility Model Content
[0004] Based on the aforementioned technical problem that traditional heat dissipation structures use a single rubber pad to isolate the motherboard and the fuselage frame, which cannot effectively establish a heat conduction path, resulting in heat accumulation in the motherboard area and causing poor heat dissipation, this utility model proposes a drone heat dissipation device. The gap between the top of the rubber sleeve and the middle frame and the motherboard is filled with thermally conductive adhesive. The thermally conductive adhesive establishes a heat conduction path from the motherboard to the middle frame, avoiding heat accumulation in the motherboard area and improving the problem of poor heat dissipation.
[0005] This utility model proposes a heat dissipation device for a drone, including a middle frame, a motherboard, and a rubber sleeve; the middle frame is installed on the fuselage; the motherboard is fixedly connected inside the middle frame; the rubber sleeve is fixedly installed on the outer peripheral wall of the motherboard, and the gap between the top of the rubber sleeve and the middle frame and the motherboard is filled with thermally conductive adhesive;
[0006] The rubber sleeve includes a connecting part, a sealing part, and an elastic extrusion part. The connecting part, sealing part, and elastic extrusion part are integrally molded. A bending groove is provided at the connection between the sealing part and the elastic extrusion part. The connecting part is fixedly connected to the main board. The elastic extrusion part forms an extrusion contact with the inner wall of the middle frame. The outer wall of the sealing part has multiple protrusions. An anti-detachment groove is formed between two adjacent protrusions. The thermally conductive adhesive is filled on the surface of the sealing part and makes full contact with the protrusions and the anti-detachment groove.
[0007] Preferably, the outer peripheral wall of the middle frame is symmetrically provided with a first insertion part, a second insertion part and a third insertion part, and each insertion part is equidistantly distributed along the circumference.
[0008] Preferably, it also includes a bracket, the inner wall of which is provided with a first insert arm, a second insert arm and a third insert arm arranged symmetrically, the insert arms being inserted into the corresponding insert parts and fixed by bolts.
[0009] Preferably, the bottom of the bracket has a cavity made of metal, and its inner wall has a heat dissipation fin structure.
[0010] Preferably, at least two brushless DC motors are mounted on the bracket, and the output end of the brushless DC motor is fixedly connected to a propeller.
[0011] Preferably, a lampshade is detachably mounted on the top of the middle frame, and the lampshade contains a lighting component that is electrically connected to the motherboard.
[0012] Preferably, the middle frame is made of aluminum alloy and its outer surface is provided with an anodized coating.
[0013] Preferably, the top of the fuselage is provided with a flight battery that is detachably connected to the mid-frame.
[0014] The beneficial effects of this utility model, achieved through the above technical solution, are as follows:
[0015] 1. The rubber sleeve is fixedly installed on the outer peripheral wall of the motherboard. The gap between the top of the rubber sleeve and the middle frame and the motherboard is filled with thermally conductive adhesive. The thermally conductive adhesive establishes a heat conduction path from the motherboard to the middle frame. The good thermal conductivity of the thermally conductive adhesive can quickly transfer the heat generated by the motherboard to the middle frame, and then dissipate it to the outside through the middle frame, avoiding the accumulation of heat in the motherboard area and improving the problem of poor heat dissipation channels.
[0016] 2. The design of the bending groove allows the elastic extrusion part to form an extrusion contact with the inner wall of the middle frame, which enhances the fit between the rubber sleeve and the middle frame. The protrusion and anti-detachment groove increase the contact area between the thermal conductive adhesive and the rubber sleeve, improve the thermal conductivity, and prevent the thermal conductive adhesive from falling off, ensuring the long-term stability of the heat dissipation structure.
[0017] 3. The symmetrical and equidistantly distributed plug-in structure makes the connection between the middle frame and the bracket more stable and reliable. Through the cooperation of the plug arm and the plug part and the fixing of the bolt, it can effectively resist the vibration and external impact during the flight of the drone, and ensure the relative position stability between the heat dissipation device and other components.
[0018] 4. The metal cavity has good thermal conductivity, which can absorb and transfer heat. The heat dissipation fin structure increases the heat dissipation area and accelerates the heat dissipation speed. When heat is transferred from the motherboard to the middle frame and then to the bracket, the cavity and heat dissipation fins can further dissipate the heat to the surrounding environment, enhancing the heat dissipation capacity of the entire heat dissipation device. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2This is a schematic diagram of the overall structure of the middle frame of this utility model;
[0021] Figure 3 This is a schematic diagram of the installation structure of the rubber sleeve of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the rubber sleeve of this utility model.
[0023] In the diagram: 1. Mid-frame; 101. First heat dissipation area; 102. Second heat dissipation area; 103. Third heat dissipation area; 2. Mainboard; 3. Rubber sleeve; 301. Connecting part; 302. Sealing part; 303. Elastic compression part; 304. Bending groove; 305. Protrusion; 306. Anti-detachment groove; 4. First insertion part; 5. Second insertion part; 6. Third insertion part; 7. Bracket; 8. First insertion arm; 9. Second insertion arm; 10. Third insertion arm; 11. Cavity; 12. Brushless DC motor; 13. Propeller; 14. Lamp cover; 15. Flight battery. Detailed Implementation
[0024] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model. In this utility model, unless otherwise expressly specified and limited, the term "fixed connection" should be interpreted broadly. For example, "fixed connection" can mean fixed installation, detachable connection, or integral; it can mean mechanical connection or electrical connection; it can mean direct connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] like Figure 3 and Figure 4 As shown, a drone heat dissipation device includes a mid-frame 1, a motherboard 2, and a rubber sleeve 3; the mid-frame 1 is mounted on the fuselage; the motherboard 2 is fixedly connected inside the mid-frame 1;
[0026] The middle frame 1 is provided with a first heat dissipation area 101, a second heat dissipation area 102 and a third heat dissipation area 103;
[0027] The positioning and data transmission components of the drone generate heat during operation. The first heat dissipation area 101 can dissipate this heat in a timely manner, preventing the components from degrading in performance, malfunctioning, or even being damaged due to overheating.
[0028] The motherboard is the core component of electronic devices, which integrates numerous chips, circuits and other components. These components generate a lot of heat during operation, and the second heat dissipation area 102 helps to dissipate heat from the motherboard.
[0029] An ESC, or electronic speed controller, is mainly used to control the speed of a motor. During operation, the ESC generates heat due to power conversion and other reasons. The heat generated by the ESC can be effectively dissipated through the third heat dissipation area 103.
[0030] The rubber sleeve 3 is fixedly installed on the outer peripheral wall of the motherboard 2. The gap between the top of the rubber sleeve 3 and the middle frame 1 and the motherboard 2 is filled with thermally conductive adhesive. The thermally conductive adhesive establishes a heat conduction path from the motherboard to the middle frame. The good thermal conductivity of the thermally conductive adhesive can quickly transfer the heat generated by the motherboard to the middle frame 1, and then dissipate it to the outside through the middle frame 1, avoiding the accumulation of heat in the motherboard 2 area and improving the problem of poor heat dissipation channel.
[0031] The rubber sleeve 3 is made of silicone rubber and includes a connecting part 301, a sealing part 302, and an elastic extrusion part 303. The connecting part 301, the sealing part 302, and the elastic extrusion part 303 are integrally molded. A bending groove 304 is provided at the connection between the sealing part 302 and the elastic extrusion part 303. The connecting part 301 is fixedly connected to the main board 2. The elastic extrusion part 303 forms a compression contact with the inner wall of the middle frame 1. The outer wall of the sealing part 302 has multiple protrusions 305. An anti-detachment groove 306 is formed between two adjacent protrusions 305. Thermally conductive adhesive is filled on the surface of the sealing part 302 and makes full contact with the protrusions 305 and the anti-detachment groove 306.
[0032] The design of the bending groove 304 allows the elastic extrusion part 303 to form an extrusion contact with the inner wall of the middle frame 1, enhancing the fit between the rubber sleeve 3 and the middle frame 1; the protrusion 305 and the anti-detachment groove 306 increase the contact area between the thermally conductive adhesive and the rubber sleeve, improve the thermal conductivity, and at the same time prevent the thermally conductive adhesive from falling off, ensuring the long-term stability of the heat dissipation structure.
[0033] like Figure 1 and Figure 2 As shown, in some embodiments, the outer peripheral wall of the middle frame 1 is symmetrically provided with a first insertion part 4, a second insertion part 5 and a third insertion part 6, and each insertion part is equidistantly distributed along the circumference. It also includes a bracket 7, and the inner wall of the bracket 7 is provided with a first insertion arm 8, a second insertion arm 9 and a third insertion arm 10 symmetrically arranged. The insertion arms are respectively inserted into the corresponding insertion parts and fixed by bolts.
[0034] The symmetrical and equidistantly distributed plug-in structure makes the connection between the middle frame 1 and the bracket 7 more stable and reliable. Through the cooperation of the plug arm and the plug part and the fixing of the bolt, it can effectively resist the vibration and external impact during the flight of the drone, and ensure the relative position stability between the heat dissipation device and other components.
[0035] like Figure 1 As shown, in some embodiments, the bottom of the bracket 7 is provided with a cavity 11, which is made of metal and has a heat dissipation fin structure on its inner wall.
[0036] The metal cavity 11 has good thermal conductivity, which can absorb and transfer heat. The heat dissipation fin structure increases the heat dissipation area and accelerates the heat dissipation speed. When heat is transferred from the motherboard 2 to the middle frame 1, and then through the middle frame 1 to the bracket 7, the cavity 11 and the heat dissipation fins can further dissipate the heat to the surrounding environment, enhancing the heat dissipation capacity of the entire heat dissipation device.
[0037] like Figure 1 As shown, in some embodiments, at least two brushless DC motors 12 are mounted on the bracket 7, and the output end of the brushless DC motor 12 is fixedly connected to the propeller 13; a lampshade 14 is detachably mounted on the top of the middle frame 1, and the lampshade 14 has a lighting component that is electrically connected to the main board 2 inside.
[0038] The heat generated by the heat dissipation components and lighting components of the motherboard 2 is transferred to the middle frame 1. After the aircraft takes off, the rotation of the propeller 13 generates airflow that covers the middle frame 2, which is beneficial for the heat dissipation of the aluminum alloy middle frame 1.
[0039] In some embodiments, the middle frame 1 is made of aluminum alloy and its outer surface is provided with an anodized coating.
[0040] Aluminum alloy is lightweight and has good thermal conductivity, which allows it to quickly conduct heat while ensuring the structural strength of the mid-frame, thus facilitating heat dissipation. The anodized coating not only improves the corrosion resistance of the mid-frame and extends its service life, but also enhances its heat dissipation efficiency to some extent.
[0041] like Figure 1 As shown, in some embodiments, a flight battery 15 is provided on the top of the fuselage and is detachably connected to the mid-frame 1.
[0042] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A drone heat dissipation device, characterized in that, include: The middle frame (1) is mounted on the machine body; The motherboard (2) is fixedly connected inside the middle frame (1); A rubber sleeve (3) is fixedly installed on the outer periphery of the main board (2). The gap between the top of the rubber sleeve (3) and the middle frame (1) and the main board (2) is filled with thermally conductive adhesive. The rubber sleeve (3) includes a connecting part (301), a sealing part (302) and an elastic extrusion part (303). The connecting part (301), the sealing part (302) and the elastic extrusion part (303) are integrally formed. A bending groove (304) is provided at the connection between the sealing part (302) and the elastic extrusion part (303). The connecting part (301) is fixedly connected to the main board (2). The elastic extrusion part (303) forms a compression contact with the inner wall of the middle frame (1). The outer wall of the sealing part (302) has multiple protrusions (305). An anti-detachment groove (306) is formed between two adjacent protrusions (305). Thermally conductive adhesive is filled on the surface of the sealing part (302) and fully contacts the protrusions (305) and the anti-detachment groove (306).
2. The unmanned aerial vehicle heat dissipating device of claim 1, wherein: The outer periphery of the middle frame (1) is symmetrically provided with a first plug-in part (4), a second plug-in part (5) and a third plug-in part (6), and each plug-in part is equidistantly distributed along the circumference.
3. The unmanned aerial vehicle heat dissipating device of claim 2, wherein: It also includes a bracket (7), the inner wall of which is provided with a first insert arm (8), a second insert arm (9) and a third insert arm (10) arranged symmetrically, the insert arms being inserted into the corresponding insert parts and fixed by bolts.
4. The unmanned aerial vehicle heat dissipating device of claim 3, wherein: The bottom of the bracket (7) has a cavity (11) with a heat dissipation fin structure on its inner wall.
5. The unmanned aerial vehicle heat dissipating device of claim 4, wherein: At least two brushless DC motors (12) are mounted on the bracket (7), and the output end of the brushless DC motor (12) is fixedly connected to the propeller (13).
6. The unmanned aerial vehicle heat dissipating device of claim 5, wherein: The top of the middle frame (1) is detachably fitted with a lampshade (14), and the lampshade (14) contains a lighting component that is electrically connected to the main board (2).
7. The unmanned aerial vehicle heat dissipating device of claim 6, wherein: The outer surface of the middle frame (1) is provided with an anodized coating.
8. The unmanned aerial vehicle heat dissipating device of claim 7, wherein: The top of the fuselage is equipped with a flight battery (15) that can be detachably connected to the mid-frame (1).