Heat dissipation device applied to model airplane unmanned aerial vehicle

Abstract

The utility model discloses a heat dissipation device applied to a model airplane unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles, the heat dissipation device comprises an unmanned aerial vehicle shell, the side wall of the unmanned aerial vehicle shell is provided with an air inlet and an air outlet in a penetrating manner, and the bottom of the unmanned aerial vehicle shell is provided with a heat dissipation shell in a penetrating manner; an air inlet grille is arranged on the side wall, corresponding to the interior of the unmanned aerial vehicle shell, of the heat dissipation shell in a penetrating mode, a heat dissipation fan is fixedly connected to the position, corresponding to the air inlet grille, of the interior of the heat dissipation shell, a connecting opening communicating with the interior is formed in the side wall of the air inlet grille, and an air channel is connected between the connecting opening and the air inlet; the air inlet and the air outlet are formed in the unmanned aerial vehicle shell, the heat dissipation shell is arranged at the bottom, the heat dissipation fan is arranged in the heat dissipation shell, and after the heat dissipation fan is started, external air enters from the air inlet, enters the heat dissipation shell through the air duct, is blown into the unmanned aerial vehicle shell through the air inlet grille and then flows out from the air outlet; and heat dissipation is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a heat dissipation device applied to model unmanned aerial vehicles. Background Technique

[0002] At present, unmanned aerial vehicles have a wide variety of functions, high integration, and are becoming more and more powerful and widely used. Their applications in the fields of film and television, agriculture, and aerial photography are becoming more and more extensive. With the powerful functions, the heat generation is large. In order for the unmanned aerial vehicle to work properly, the heat generation of the unmanned aerial vehicle has to be solved.

[0003] At present, the unmanned aerial vehicles on the market generally use a cooling fan for heat dissipation. This solution uses the battery of the unmanned aerial vehicle as the power of the cooling fan. The consequence of this is that the load on the battery of the unmanned aerial vehicle is increased, the working time of the battery of the unmanned aerial vehicle is greatly reduced, and the service life of the battery of the unmanned aerial vehicle is shortened.

[0004] The patent number is CN202022656628.0, and the patent name is a heat dissipation device applied to model unmanned aerial vehicles, which discloses a heat dissipation device applied to model unmanned aerial vehicles, relating to the technical field of unmanned aerial vehicles. The heat dissipation device applied to model unmanned aerial vehicles includes an unmanned aerial vehicle body. Both sides of the unmanned aerial vehicle body are fixedly inlaid with first bearings. The inner walls of the two first bearings are respectively fixedly connected to the surfaces at both ends of a round shaft. Both ends of the round shaft respectively pass through the two first bearings movably and extend to the outside of the unmanned aerial vehicle body. Both ends of the round shaft are fixedly connected with first fan blades. The surface of the round shaft is respectively fixedly connected with a first driving bevel gear and a second driving bevel gear. The first driving bevel gear and the second driving bevel gear are respectively meshed with a first driven bevel gear and a second driven bevel gear. The utility model solves the problem that the current unmanned aerial vehicle uses a cooling fan for heat dissipation, which increases the load on the battery of the unmanned aerial vehicle and reduces the service life of the battery of the unmanned aerial vehicle by setting the first fan blade, the round shaft, the universal shaft, the first transmission shaft, the second fan blade and the flow guide plate. However, since the internal heat dissipation mechanism is driven by the fan blades outside the unmanned aerial vehicle, the heat dissipation effect is limited. At the same time, if the unmanned aerial vehicle is in a hovering state and the heat dissipation mechanism does not work, it may still cause high temperature. Therefore, a heat dissipation device applied to model unmanned aerial vehicles is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a heat dissipation device applied to model unmanned aerial vehicles to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions: A heat dissipation device applied to a model aircraft drone, including a drone housing. An air inlet and an air outlet are provided through the side wall of the drone housing. A heat dissipation housing is provided through the bottom of the drone housing. An air intake grille is provided through the side wall of the heat dissipation housing corresponding to the interior of the drone housing, and a heat dissipation fan is fixedly connected to the heat dissipation housing corresponding to the air intake grille. A connection port communicating with the interior is provided on the side wall of the air intake grille, and an air duct is connected between the connection port and the air inlet.

[0007] According to the above technical solutions, a connection frame is provided on the inner surface of the drone housing corresponding to the air inlet. The air duct is flexible, and connection ends are respectively provided at both ends of the air duct and are snap-connected to the connection frame and the connection port.

[0008] According to the above technical solutions, an annular filter screen is provided inside the heat dissipation housing. Both ends of the annular filter screen are respectively connected to the upper and lower side walls of the heat dissipation housing, and the heat dissipation fan is located inside the annular filter screen.

[0009] According to the above technical solutions, a cover is provided through the lower side wall of the heat dissipation housing. The cover is screwed to the heat dissipation housing, and the annular filter screen is fixedly connected to the cover.

[0010] According to the above technical solutions, the annular filter screen includes a main frame body, which is composed of two upper and lower annular frames. A plurality of connecting rods are fixedly connected between the annular frames. A filter screen is fixedly connected to the outside of the main frame body, and the lower annular frame is fixedly connected to the cover.

[0011] According to the above technical solutions, an annular groove is coaxially provided on the upper surface of the upper annular frame. A movable ring is movably provided on the inner surface of the annular groove, and a plurality of elastic elements are provided between the movable ring and the annular groove.

[0012] According to the above technical solutions, a connecting pipe is provided through the end face of the cover. A movable rod is movably provided inside the connecting pipe. A sealing plug is fixedly connected to the upper end of the movable rod, and a spring is provided between the movable rod and the connecting pipe.

[0013] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: In the present utility model, by providing an air inlet and an air outlet on the drone housing and a heat dissipation housing at the bottom, and a heat dissipation fan is provided inside the heat dissipation housing. After starting the heat dissipation fan, external air enters from the air inlet, passes through the air duct into the inside of the heat dissipation housing and is blown into the inside of the drone housing through the air intake grille, and then flows out from the air outlet to complete heat dissipation. The heat dissipation effect of the device is better and is not affected by the working state of the drone. Specifically, it has the following advantages:

[0014] 1. The device intakes air through the air inlet set on the drone's outer shell and exhausts air through the air outlet, thus effectively preventing water vapor from being inhaled into the interior of the drone's outer shell when it rains.

[0015] 2. The device is set at the bottom of the drone's outer shell, and this heat dissipation structure can be installed on the existing drone equipment, with better applicability.

[0016] 3. An annular filter screen is set inside the heat dissipation outer shell to remove dust and impurities in the gas, ensuring that clean air enters the interior of the drone's outer shell to participate in heat dissipation.

[0017] 4. The setting of the cover makes it convenient to replace the annular filter screen. After the device has been used for a long time, the annular filter screen can be replaced to ensure the filtering effect.

[0018] 5. By setting a connecting pipe and a movable sealing plug on the cover, after too much dust and impurities adhere to the surface of the annular filter screen and affect air intake, under the action of pressure, the sealing plug disengages from the connecting pipe, and external gas is directly inhaled to participate in heat dissipation, preventing the device from being damaged due to high temperature. Description of the Drawings

[0019] The drawings are used to provide a further understanding of the present utility model and form a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0020] Figure 1 is the front view sectional structure schematic diagram of the present utility model;

[0021] Figure 2 is the structure schematic diagram of the heat dissipation outer shell of the present utility model;

[0022] Figure 3 is the structure schematic diagram of the annular filter screen of the present utility model;

[0023] Figure 4 is the structure schematic diagram of the cover of the present utility model;

[0024] In the figure: 1 - drone outer shell, 2 - air inlet, 3 - air outlet, 4 - heat dissipation outer shell, 5 - intake grille, 6 - heat dissipation fan, 7 - connection port, 8 - air duct, 9 - connection frame, 10 - cover, 11 - main frame body, 1101 - annular frame, 1102 - connecting rod, 12 - annular groove, 13 - movable ring, 14 - connecting pipe, 15 - movable rod, 16 - sealing plug. Detailed Embodiments

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-4 , the present invention provides a technical solution: a heat dissipation device applied to a model aircraft drone, including a drone housing 1. An air inlet 2 and an air outlet 3 are penetratingly provided on the side wall of the drone housing 1. As Figure 1 shown, the air inlet 2 and the air outlet 3 are respectively provided at the upper end of the drone housing 1. A rain shield can be provided on the outer surface of the drone housing 1 corresponding to the tops of the air inlet 2 and the air outlet 3 to prevent rainwater from dripping in. A heat dissipation housing 4 is penetratingly provided at the bottom of the drone housing 1. As Figure 2 shown, the heat dissipation housing 4 has a cubic structure. An air inlet grille 5 is penetratingly provided on the side wall of the heat dissipation housing 4 corresponding to the inside of the drone housing 1, and a heat dissipation fan 6 is fixedly connected inside the heat dissipation housing 4 corresponding to the air inlet grille 5. A connection port 7 communicating with the inside is provided on the side wall of the air inlet grille 5. A wind duct 8 is connected between the connection port 7 and the air inlet 2. By starting the rotation of the heat dissipation fan 6, under the action of pressure, gas is inhaled into the inside of the heat dissipation housing 4 by the wind duct 8, blown out by the air inlet grille 5, and finally blown out by the air outlet 3, playing a role of active heat dissipation with better heat dissipation effect. At the same time, since the heat dissipation housing 4 is provided at the bottom of the drone housing 1, it will not affect the center of gravity of the drone;

[0027] Specifically, a connection frame 9 is provided on the inner surface of the drone housing 1 corresponding to the air inlet 2. The wind duct 8 is flexible, and connection ends respectively engaged with the connection frame 9 and the connection port 7 are provided at both ends of the wind duct 8. Gas is inhaled through the wind duct 8. This setting method is convenient for installing the present heat dissipation structure on an existing drone;

[0028] Specifically, an annular filter screen is provided inside the heat dissipation housing 4. As Figure 1 shown, both ends of the annular filter screen are connected to the upper and lower side walls of the heat dissipation housing 4 respectively. The heat dissipation fan 6 is located inside the annular filter screen. The gas inhaled through the wind duct 8 needs to pass through the annular filter screen and be blown out by the air inlet grille 5, playing a filtering role. The volume of the heat dissipation housing 4 is relatively large, so the surface area of the annular filter screen is also large enough, and the filtering effect is better. At the same time, the gas flow is ensured to ensure the heat dissipation effect;

[0029] Specifically, a cover 10 is penetrated through the lower side wall of the heat dissipation housing 4. The cover 10 is screwed to the heat dissipation housing 4. The annular filter screen is fixedly connected to the cover 10. When the cover 10 is removed, the annular filter screen can be disassembled, which is convenient for replacing or cleaning the annular filter screen;

[0030] Specifically, the annular filter screen includes a main frame 11. As Figure 3 shown, the main frame 11 is composed of two upper and lower annular frames 1101. A plurality of connecting rods 1102 are fixedly connected between the annular frames 1101. A filter screen is fixedly connected to the outside of the main frame 11. The lower annular frame 1101 is fixedly connected to the cover 10, which ensures the area of the filter screen and plays a good supporting function for the filter screen, ensuring the filtering effect of the annular filter screen;

[0031] Specifically, an annular groove 12 is coaxially provided on the upper surface of the upper annular frame 1101. A movable ring 13 is movably arranged on the inner surface of the annular groove 12. A plurality of elastic elements are arranged between the movable ring 13 and the annular groove 12. As Figure 2 shown, after the cover 10 is installed, the movable ring 13 contacts the upper side wall of the heat dissipation housing 4, and the elastic elements are compressed, ensuring that all the incoming gas can pass through the annular filter screen and be blown out by the air intake grille 5;

[0032] Specifically, a connecting pipe 14 is penetrated through the end face of the cover 10. A movable rod 15 is movably arranged in the connecting pipe 14. A sealing plug 16 is fixedly connected to the upper end of the movable rod 15. A spring is arranged between the movable rod 15 and the connecting pipe 14. Under the action of the spring, the sealing plug 16 is tightly attached to the connecting pipe 14. When the device is working normally, the sealing plug 16 is in a closed state. When too much dust and impurities adhere to the surface of the annular filter screen and affect air intake, negative pressure is generated inside the heat dissipation housing 4. Under the action of the negative pressure, the sealing plug 16 overcomes the spring and disengages from the connecting pipe 14, and the gas directly enters the drone housing 1 through the connecting pipe 14, realizing the function of emergency heat dissipation;

[0033] When the utility model is in use, the heat dissipation fan 6 rotates, and the gas enters the air duct 8 from the air inlet 2. After entering the inside of the heat dissipation housing 4, it is blown into the drone housing 1 by the air intake grille 5 and blown out from the air outlet 3 to complete heat dissipation. The gas passing through the inside of the heat dissipation housing 4 is filtered by the annular filter screen. When too much dust and impurities adhere to the surface of the annular filter screen and affect air intake, negative pressure is generated inside the heat dissipation housing 4. Under the action of the negative pressure, the sealing plug 16 overcomes the spring and disengages from the connecting pipe 14, and the gas directly enters the drone housing 1 through the connecting pipe 14, realizing the function of emergency heat dissipation.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A heat dissipation device applied to a model aircraft drone, comprising a drone housing (1), characterized in that: An air inlet (2) and an air outlet (3) are provided through the side wall of the UAV housing (1). A heat dissipation housing (4) is provided through the bottom of the UAV housing (1). An air intake grille (5) is provided through the side wall of the heat dissipation housing (4) corresponding to the inside of the UAV housing (1). A heat dissipation fan (6) is fixedly connected to the heat dissipation housing (4) corresponding to the air intake grille (5). A connection port (7) communicating with the inside is provided on the side wall of the air intake grille (5). An air duct (8) is connected between the connection port (7) and the air inlet (2).

2. The heat dissipation device for a model aircraft UAV according to claim 1, wherein: A connection frame (9) is provided on the inner surface of the UAV housing (1) corresponding to the air inlet (2). The air duct (8) is flexible, and connection ends respectively engaging with the connection frame (9) and the connection port (7) are provided at both ends of the air duct (8).

3. The heat dissipation device applied to a model aircraft drone according to claim 2, wherein: An annular filter screen is provided inside the heat dissipation housing (4). Both ends of the annular filter screen are connected to the upper and lower side walls of the heat dissipation housing (4) respectively. The heat dissipation fan (6) is located inside the annular filter screen.

4. The heat dissipation device applied to the model aircraft UAV according to claim 3, characterized in that: A cover (10) is provided through the lower side wall of the heat dissipation housing (4). The cover (10) is screwed to the heat dissipation housing (4). The annular filter screen is fixedly connected to the cover (10).

5. The heat dissipation device for a model UAV according to claim 4, wherein: The annular filter screen includes a main frame body (11). The main frame body (11) is composed of two upper and lower annular frames (1101). A number of connecting rods (1102) are fixedly connected between the annular frames (1101). A filter screen is fixedly connected to the outside of the main frame body (11). The lower annular frame (1101) is fixedly connected to the cover (10).

6. The heat dissipation device applied to an aeromodelling UAV according to claim 5, wherein: An annular groove (12) is coaxially provided on the upper surface of the upper annular frame (1101). A movable ring (13) is movably provided on the inner surface of the annular groove (12). A number of elastic elements are provided between the movable ring (13) and the annular groove (12).

7. The heat dissipation device for a model UAV according to claim 6, wherein: A connecting pipe (14) is provided through the end face of the cover (10). A movable rod (15) is movably provided inside the connecting pipe (14). A sealing plug (16) is fixedly connected to the upper end of the movable rod (15). A spring is provided between the movable rod (15) and the connecting pipe (14).

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