Cooling arm of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle heat dissipation machine arm which comprises a machine arm body, and a wing is fixedly installed at the right end of the machine arm body. The heat dissipation assembly is fixedly mounted in the machine arm; wherein the heat dissipation assembly comprises a mounting part and a heat dissipation part; the rotating assembly is fixedly mounted in the machine arm; wherein the rotating assembly comprises a rotating part and a circulating part. According to the utility model, the heat dissipation part is arranged, the circuit board is fixedly arranged at the top of the heat dissipation plate, heat generated by working of the circuit board is dissipated to the periphery through the heat dissipation plate and the heat dissipation fins, and the absorption cotton frame fixedly arranged in the protection frame can effectively absorb water drops and prevent the water drops from being in contact with the circuit board; the first impeller rotates to stir airflow in the inner cavity, circulation of airflow near the circuit board is accelerated, heat on the surface of the circuit board is conveniently dissipated, and the effects of guaranteeing normal work of the circuit board and effectively dissipating heat are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a heat dissipation arm of an unmanned aerial vehicle. Background Art

[0002] Unmanned aircraft, or "drones" for short, are unmanned aircraft that are controlled by radio remote control equipment and self-contained program control devices, or are operated completely or intermittently autonomously by on-board computers. Compared with manned aircraft, drones are often more suitable for tasks that are too "dull, dirty or dangerous". Drones can be divided into military and civilian applications according to their application areas. In the military, drones are divided into reconnaissance aircraft and target aircraft. In the civilian field, drones + industry applications are the real rigid demand for drones; their applications in aerial photography, agriculture, plant protection, micro selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspections, disaster relief, film and television shooting, creating romance, etc. have greatly expanded the use of drones themselves, and developed countries are also actively expanding industry applications and developing drone technology.

[0003] At present, in the actual application of the heat dissipation arm of the drone, a through hole is generally opened inside the arm. The through hole is set just below the wing. The wind generated when the wing rotates at high speed enters the through hole to dissipate the heat inside the arm. However, due to the setting of the through hole inside the arm, the inside of the arm is connected to the outside world. In rainy weather, rainwater can easily enter the inside of the arm. When it comes into contact with the circuit board set inside the arm, it may cause a short circuit in the circuit board, affecting the normal operation of the circuit board. Utility Model Content

[0004] The purpose of the utility model is to provide a heat dissipation arm for a drone, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat dissipation arm of a drone, comprising an arm, a wing being fixedly mounted on the right end of the arm;

[0006] A heat dissipation component, wherein the heat dissipation component is fixedly installed inside the machine arm;

[0007] Wherein, the heat dissipation component includes a mounting portion and a heat dissipation portion;

[0008] A rotating assembly, wherein the rotating assembly is fixedly mounted inside the machine arm;

[0009] Wherein, the rotating component includes a rotating part and a circulation part.

[0010] Preferably, the installation portion includes a top cover, an inner cavity is opened inside the machine arm, a circuit board is fixedly installed inside the inner cavity, the top cover is fixedly installed on the top of the machine arm, and the circuit board is arranged inside the machine arm.

[0011] Preferably, the heat dissipation part includes a protective frame, an absorbent cotton frame is fixedly installed linearly and equidistantly inside the protective frame, heat dissipation fins are arranged at the bottom of the protective frame, and a heat dissipation plate is fixedly installed on the top of the heat dissipation fins.

[0012] Preferably, the protective frame is fixedly mounted on the top of the inner wall of the arm, through holes are linearly and equidistantly opened inside the protective frame, the absorbent cotton frame is adapted to the through holes, the heat dissipating fins are arranged inside the inner cavity, the heat dissipating fins are fixedly mounted on the bottom of the inner wall of the arm, and a circuit board is fixedly mounted on the top of the heat dissipation plate.

[0013] Preferably, the rotating part includes a paddle wheel, a protective shell is fixedly installed on the top of the arm, a mesh plate is fixedly installed inside the arm, a ventilation hole 1 is opened inside the arm, a fixing frame 1 is fixedly installed inside the ventilation hole 1, and a bearing seat 1 is fixedly installed inside the fixing frame 1.

[0014] Preferably, the propeller is arranged at the bottom of the wing, the propeller is arranged inside the protective shell, the mesh plate is adapted to the ventilation hole 1, the ventilation hole 1 is connected to the inner cavity, and the ventilation hole 1 is arranged on the right side of the protective frame.

[0015] Preferably, the circulation part includes a rotating shaft, an impeller 1 is fixedly installed at one end of the rotating shaft near the top, a fixing frame 2 is fixedly installed inside the machine arm, a bearing seat 2 is fixedly installed inside the fixing frame 2, an impeller 2 is fixedly installed at the bottom of the rotating shaft, and a ventilation hole 2 is opened inside the machine arm.

[0016] Preferably, the top end of the rotating shaft is fixedly mounted on the propeller, the rotating shaft is arranged inside the machine arm, the top end of the rotating shaft passes through the bearing seat 1 and the mesh plate in sequence, and the top end of the rotating shaft extends to the top of the mesh plate, the rotating shaft is fixedly mounted between the bearing seat 1 and the bearing seat 2, the impeller 1 and the protective frame are at the same horizontal height, the impeller 2 is arranged inside the ventilation hole 2, and the ventilation hole 2 is connected to the inner cavity.

[0017] The utility model provides a heat dissipation arm for a drone, which has the following beneficial effects:

[0018] (1) The utility model sets a heat dissipation part, and the circuit board is fixedly installed on the top of the heat dissipation plate. The heat generated by the circuit board during operation is dissipated to the surroundings through the heat dissipation plate and the heat dissipation fins. The absorbent cotton frame fixedly installed inside the protective frame can effectively absorb water droplets to prevent them from contacting the circuit board. When the impeller rotates, it stirs the airflow inside the inner cavity, accelerates the circulation of airflow near the circuit board, and facilitates the dissipation of heat on the surface of the circuit board, thereby achieving the effect of ensuring the normal operation of the circuit board and effectively dissipating heat.

[0019] (2) The utility model provides a circulation part, and when the wing rotates at high speed, it will drive the propeller to rotate, and the propeller drives the rotating shaft to rotate, thereby driving the second impeller to rotate. When the second impeller rotates, the hot air flow inside the inner cavity flows to the outside under the action of the air duct, and the heat inside the inner cavity is again cooled, so as to achieve the effect of completely cooling the inside of the arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a front view of the utility model;

[0022] Figure 3 This is a structural view of the heat dissipation part of the utility model;

[0023] Figure 4 For this utility model Figure 2 A partial enlarged view of center A.

[0024] In the figure: 1 arm, 2 wing, 3 heat dissipation component, 31 installation part, 311 top cover, 312 inner cavity, 313 circuit board, 32 heat dissipation part, 321 protective frame, 322 absorbent cotton frame, 323 heat dissipation fins, 324 heat dissipation plate, 4 rotating component, 41 rotating part, 411 wheel propeller, 412 protective shell, 413 mesh plate, 414 ventilation hole one, 415 fixing frame one, 416 bearing seat one, 42 circulation part, 421 rotating shaft, 422 impeller one, 423 fixing frame two, 424 bearing seat two, 425 impeller two, 426 ventilation hole two. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] Example 1

[0028] A preferred embodiment of a heat dissipation arm of a drone provided by the utility model is as follows: Figure 1-4 As shown: a heat dissipation arm of a drone, comprising an arm 1, a wing 2 is fixedly mounted on the right end of the arm 1;

[0029] The heat dissipation component 3 is fixedly mounted inside the machine arm 1;

[0030] The heat dissipation component 3 includes a mounting portion 31 and a heat dissipation portion 32;

[0031] The installation part 31 includes a top cover 311, an inner cavity 312 is opened inside the machine arm 1, a circuit board 313 is fixedly installed inside the inner cavity 312, the top cover 311 is fixedly installed on the top of the machine arm 1, and the circuit board 313 is arranged inside the machine arm 1;

[0032] The heat dissipation part 32 includes a protective frame 321, and an absorbent cotton frame 322 is fixedly installed at a linear and equidistant manner inside the protective frame 321. A heat dissipation fin 323 is arranged at the bottom of the protective frame 321, and a heat dissipation plate 324 is fixedly installed on the top of the heat dissipation fin 323. The protective frame 321 is fixedly installed on the top of the inner wall of the arm 1, and through holes are opened linearly and equidistantly inside the protective frame 321. The absorbent cotton frame 322 and the through holes are adapted to each other. The heat dissipation fin 323 is arranged inside the inner cavity 312, and the heat dissipation fin 323 is fixedly installed on the bottom of the inner wall of the arm 1, and a circuit board 313 is fixedly installed on the top of the heat dissipation plate 324; the circuit board 313 is fixedly installed on the top of the heat dissipation plate 324, and the heat generated by the circuit board 313 during operation is dissipated to the surroundings through the heat dissipation plate 324 and the heat dissipation fin 323. The absorbent cotton frame 322 fixedly installed inside the protective frame 321 can effectively absorb water droplets to prevent them from contacting the circuit board 313.

[0033] Example 2

[0034] Based on Example 1, a preferred embodiment of a heat dissipation arm of a drone provided by the present invention is as follows: Figure 1-4 As shown: a rotating assembly 4, the rotating assembly 4 is fixedly mounted inside the machine arm 1;

[0035] The rotating assembly 4 includes a rotating portion 41 and a circulation portion 42;

[0036] The rotating part 41 includes a wheel-paddle 411, a protective shell 412 is fixedly installed on the top of the arm 1, a mesh plate 413 is fixedly installed inside the arm 1, a ventilation hole 414 is opened inside the arm 1, a fixing frame 415 is fixedly installed inside the ventilation hole 414, a bearing seat 416 is fixedly installed inside the fixing frame 415, the wheel-paddle 411 is arranged at the bottom of the wing 2, the wheel-paddle 411 is arranged inside the protective shell 412, the mesh plate 413 and the ventilation hole 414 are adapted to each other, the ventilation hole 414 is connected with the inner cavity 312, and the ventilation hole 414 is arranged on the right side of the protective frame 321; the wheel-paddle 411 is arranged inside the protective shell 412 to protect the wheel-paddle 411, the mesh plate 413 can prevent external debris from entering the inner cavity 312 through the ventilation hole 414, the wing 2 rotates at a high speed, and the generated wind blows into the inner cavity 312 to dissipate heat for the circuit board 313 inside the inner cavity 312;

[0037] The circulation part 42 includes a rotating shaft 421, an end of the rotating shaft 421 near the top is fixedly installed with an impeller 1 422, a fixing frame 2 423 is fixedly installed inside the machine arm 1, a bearing seat 2 424 is fixedly installed inside the fixing frame 2 423, an impeller 2 425 is fixedly installed at the bottom of the rotating shaft 421, a ventilation hole 2 426 is opened inside the machine arm 1, the top of the rotating shaft 421 is fixedly installed with the paddle 411, the rotating shaft 421 is arranged inside the machine arm 1, the top of the rotating shaft 421 passes through the bearing seat 1 416 and the mesh plate 413 in sequence, and the top of the rotating shaft 421 extends to the top of the mesh plate 413, and the rotating shaft 421 is fixed between the bearing seat 1 416 and the bearing seat 2 424 The impeller 1 422 and the protective frame 321 are at the same horizontal height, the impeller 2 425 is arranged inside the ventilation hole 2 426, and the ventilation hole 2 426 is connected with the inner cavity 312; when the wing 2 rotates at a high speed, it will drive the paddle 411 to rotate, and the paddle 411 drives the rotating shaft 421 to rotate, thereby driving the impeller 1 422 and the impeller 2 425 to rotate. The rotation of the impeller 1 422 stirs the airflow inside the inner cavity 312, accelerates the circulation of the airflow near the circuit board 313, and facilitates the dissipation of the heat on the surface of the circuit board 313. The impeller 2 425 rotates, and the hot air flow inside the inner cavity 312 flows to the outside under the action of the air duct, and the heat dissipation inside the inner cavity 312 is performed again.

[0038] When in use, the circuit board 313 is fixedly installed on the top of the heat sink 324. The heat generated by the circuit board 313 is dissipated to the surroundings through the heat sink 324 and the heat dissipation fins 323. The absorbent cotton frame 322 fixedly installed inside the protective frame 321 can effectively absorb water droplets to prevent them from contacting the circuit board 313. The paddle 411 is arranged inside the protective shell 412 to protect the paddle 411. The mesh plate 413 can prevent external debris from entering the inner cavity 312 through the ventilation hole 414. The wing 2 rotates at a high speed, and the wind generated blows into the inner cavity 31 2, the circuit board 313 in the inner cavity 312 is heat-dissipated. When the wing 2 rotates at a high speed, the paddle 411 is driven to rotate. The paddle 411 drives the rotating shaft 421 to rotate, thereby driving the impeller 1 422 and the impeller 2 425 to rotate. The impeller 1 422 rotates to stir the airflow inside the inner cavity 312, accelerate the circulation of the airflow near the circuit board 313, and facilitate the heat dissipation of the surface of the circuit board 313. The impeller 2 425 rotates, and the hot air flow inside the inner cavity 312 flows to the outside under the action of the air duct, and the heat dissipation inside the inner cavity 312 is again performed.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat dissipation arm for a drone, characterized in that: It comprises an arm (1), and a wing (2) is fixedly mounted on the right end of the arm (1); A heat dissipation component (3), wherein the heat dissipation component (3) is fixedly mounted inside the machine arm (1); Wherein, the heat dissipation component (3) comprises a mounting portion (31) and a heat dissipation portion (32); A rotating assembly (4), wherein the rotating assembly (4) is fixedly mounted inside the machine arm (1); Wherein, the rotating component (4) comprises a rotating portion (41) and a circulation portion (42).

2. The UAV heat dissipation arm according to claim 1, characterized in that: The mounting portion (31) comprises a top cover (311), an inner cavity (312) is provided inside the machine arm (1), a circuit board (313) is fixedly mounted inside the inner cavity (312), the top cover (311) is fixedly mounted on the top of the machine arm (1), and the circuit board (313) is arranged inside the machine arm (1).

3. The UAV heat dissipation arm according to claim 1, characterized in that: The heat dissipation part (32) comprises a protective frame (321), an absorbent cotton frame (322) is fixedly installed linearly and equidistantly inside the protective frame (321), a heat dissipation fin (323) is arranged at the bottom of the protective frame (321), and a heat dissipation plate (324) is fixedly installed on the top of the heat dissipation fin (323).

4. The heat dissipation arm of a drone according to claim 3, characterized in that: The protective frame (321) is fixedly mounted on the top of the inner wall of the machine arm (1); through holes are linearly and equidistantly opened inside the protective frame (321); the absorbent cotton frame (322) is adapted to the through holes; the heat dissipation fins (323) are arranged inside the inner cavity (312); the heat dissipation fins (323) are fixedly mounted on the bottom of the inner wall of the machine arm (1); and a circuit board (313) is fixedly mounted on the top of the heat dissipation plate (324).

5. The UAV heat dissipation arm according to claim 1, characterized in that: The rotating part (41) includes a wheel propeller (411), a protective shell (412) is fixedly installed on the top of the arm (1), a mesh plate (413) is fixedly installed inside the arm (1), a ventilation hole (414) is opened inside the arm (1), a fixing frame (415) is fixedly installed inside the ventilation hole (414), and a bearing seat (416) is fixedly installed inside the fixing frame (415).

6. The heat dissipation arm of a drone according to claim 5, characterized in that: The paddle wheel (411) is arranged at the bottom of the wing (2), the paddle wheel (411) is arranged inside the protective shell (412), the mesh plate (413) is adapted to the ventilation hole one (414), the ventilation hole one (414) is connected to the inner cavity (312), and the ventilation hole one (414) is arranged on the right side of the protective frame (321).

7. The UAV heat dissipation arm according to claim 1, characterized in that: The circulation part (42) includes a rotating shaft (421), an end of the rotating shaft (421) close to the top is fixedly installed with an impeller 1 (422), the interior of the machine arm (1) is fixedly installed with a fixing frame 2 (423), the interior of the fixing frame 2 (423) is fixedly installed with a bearing seat 2 (424), the bottom of the rotating shaft (421) is fixedly installed with an impeller 2 (425), and the interior of the machine arm (1) is provided with a ventilation hole 2 (426).

8. The UAV heat dissipation arm according to claim 7, characterized in that: The top end of the rotating shaft (421) is fixedly mounted on the paddle wheel (411), and the rotating shaft (421) is arranged inside the machine arm (1). The top end of the rotating shaft (421) passes through the bearing seat 1 (416) and the mesh plate (413) in sequence, and the top end of the rotating shaft (421) extends to the top of the mesh plate (413). The rotating shaft (421) is fixedly mounted between the bearing seat 1 (416) and the bearing seat 2 (424). The impeller 1 (422) and the protective frame (321) are at the same horizontal height. The impeller 2 (425) is arranged inside the ventilation hole 2 (426), and the ventilation hole 2 (426) is connected to the inner cavity (312).

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