Unmanned aerial vehicle device for offshore wind field

Abstract

The invention discloses an unmanned aerial vehicle device for an offshore wind field. The unmanned aerial vehicle device comprises a vehicle body, a propeller, a battery box, a sliding device capable of moving up and down along a battery bin, a sliding rod, an elastic piece and a spring set. The sliding device is provided with a groove, the first end of the sliding rod is rotatably connected to the battery bin, the second end of the sliding rod can slide in the groove, and a suction device is arranged between the sliding device and the battery box; the sliding device comprises an initial position and a pop-up position; when the sliding device is located at the initial position, the battery box is attracted to the sliding device through the attraction device; when the sliding device is moved to the pop-up position through external force, the elastic piece is in a stretched state, the spring set is in a compressed state and can provide thrust capable of being separated from the sliding device for the battery box, and meanwhile the sliding rod is rotated to the locking position. According to the unmanned aerial vehicle device, the offshore operation capacity of the unmanned aerial vehicle can be improved, the working duration of going out of the sea once is prolonged, the open sea transmission capacity of the unmanned aerial vehicle is improved, and meanwhile the heat dissipation efficiency of the battery pack can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of offshore wind farm transmission, and in particular relates to a drone device for an offshore wind farm. Background Art

[0002] In order to ensure the stable operation of the increasingly large-scale offshore wind power, it is indispensable to realize the regular inspection of offshore wind farms. In the traditional wind farm inspection, manual inspection is adopted. In order to effectively improve the efficiency of offshore wind farm operation and maintenance and reduce labor and operating costs, drones can be used for inspection to improve the degree of automation and serve as an important supplement to manual inspection.

[0003] Drones use lithium batteries as their main energy source, and their flight time is usually slightly more than one hour. This endurance is not enough to meet the needs of offshore environments, so improving the flight time is an urgent problem to be solved. Lithium batteries have low energy density and are generally the heaviest component in drones. Large battery capacity means large weight, which in turn increases drone battery consumption, so it is difficult to increase the flight time by increasing the battery volume.

[0004] There are three traditional ways to increase the endurance of drones: developing more durable batteries, optimizing the structure of drones to increase energy reserves or reduce energy consumption, and finding lightweight materials to reduce the weight of drones to increase endurance. However, the above methods require a relatively long research and development process and it is difficult to achieve breakthrough progress in a short period of time. Summary of the invention

[0005] The purpose of the present invention is to provide an offshore wind farm UAV device with quickly replaceable batteries, which can effectively improve the offshore operation capability of the UAV, increase its working time at sea at one time, and improve the long-distance transmission capability of the UAV.

[0006] To solve the above problems, the present invention provides a UAV device for offshore wind farms, comprising a body with a battery compartment, a propeller rotatably connected to the body, a battery box installed in the battery compartment, and also comprising: a charging point at sea, an adjacent fully charged battery point, a spare battery providing kinetic energy for a battery replacement process, a sliding device that can move up and down along the battery compartment, a sliding rod that is driven to rotate by the sliding device, an elastic member whose first end is connected to the battery compartment and whose second end is connected to the bottom end of the sliding device, and a spring group arranged at the top of the battery compartment; the sliding device is provided with an inwardly concave groove, the first end of the sliding rod is rotatably connected to the battery compartment, the second end of the sliding rod can slide in the groove, a suction device is provided between the sliding device and the battery box, and a conductive interface is provided on the side wall of the battery compartment;

[0007] The sliding device includes an initial position and an ejection position relative to the battery compartment;

[0008] When the sliding device is in the initial position, the battery box is attracted to the sliding device through the attraction device;

[0009] When the sliding device is moved to the ejecting position by external force, the elastic member is in a stretched state, the spring assembly is in a compressed state and can provide a thrust to the battery box to disengage from the sliding device, while causing the slide bar to rotate to the locked position.

[0010] The drone device for an offshore wind farm of the present invention is used in conjunction with battery charging points and adjacent fully charged battery points arranged at any position in the offshore wind farm. When the drone battery is too low, the drone is controlled to fly to a battery charging point near the sea, and descends once toward the charging point. External force pressing can be achieved, so that the sliding device moves upward relative to the battery compartment, driving the slide bar to start rotating in the vertical plane, the elastic member starts to stretch, and the spring group starts to compress at the same time. When the sliding device moves to a preset pop-up position, the external force disappears, and under the pulling force of the elastic member, the second end of the slide bar slides in the groove of the sliding device to a locking position, so that the position of the sliding device in the battery compartment is locked. In this process, the spring group pushes the battery box, which can overcome the suction force between the battery box and the sliding device, so that the battery box and the battery compartment are locked. Separate to realize the disassembly of the battery box, and the disassembled battery will fall to the charging point for charging; then the small backup battery built into the drone provides instantaneous power, so that the drone can be translated to the adjacent fully charged battery point, and then the drone is controlled to descend once, and an external force is provided to the sliding device, so that the second end of the slide rod rotates out of the locking position, and under the pulling force of the elastic member, the sliding device descends as a whole and moves to the initial position, and the gap between the sliding device and the battery box is reduced. At this time, the battery box of the fully charged battery is adsorbed on the sliding device again under the suction force of the sliding device, and the battery box is connected to the conductive interface, thereby realizing the installation of the fully charged battery box. The device of the present invention has the beneficial effects of economic benefits and high degree of automation, can support the drone to inspect the offshore wind farm for a relatively long time, and basically does not require the intervention of the operator, can effectively ensure the energy supply of the drone, and more intelligently ensure the normal operation and maintenance of the offshore wind farm.

[0011] In some embodiments, a sliding groove is provided in the battery compartment, and the sliding device can move up and down in the sliding groove. Thus, by providing the sliding groove in the battery compartment, the entire sliding device can move up and down within the limitation of the sliding groove under the action of external force.

[0012] In some embodiments, the sliding device is integrally formed, including a first vertical rail, a first inclined rail, an arc rail, a second vertical rail, and a second inclined rail connected in sequence counterclockwise, and forming a groove with a track loop; the first inclined rail and the arc rail have a smooth transition, and the second end of the slide bar can slide in the groove of the track loop, and the connection point of the first inclined rail and the arc rail forms a notch protruding upward, and the position where the second end of the slide bar slides to the notch is the locking position of the slide bar. Thus, the track loop is formed by the first vertical rail, the first inclined rail, the arc rail, the second vertical rail, and the second inclined rail, and the second end of the slide bar can slide counterclockwise in the track loop under the drive of the sliding device. In the process of the second end of the slide bar sliding counterclockwise from the starting position to the notch protruding upward, the battery box is separated from the battery compartment, and the battery box is disassembled; thereafter, under the action of external force, the second end of the slide bar rushes out of the locking position of the notch, and continues to slide counterclockwise to reset back to the starting position. In this process, the installation of the fully charged battery box is achieved, thereby completing the battery replacement process of the drone.

[0013] In some embodiments, a stopper is provided in the groove of the sliding device, and the outer side surface of the stopper and the side wall of the groove respectively form a first vertical rail, a first inclined rail, an arc rail, a second vertical rail and a second inclined rail.

[0014] In some embodiments, the battery box includes a battery and a heat dissipation device, the heat dissipation device includes a heat dissipation conduit and a heat transfer frame, the battery is arranged in the heat transfer frame, the outer port of the heat dissipation conduit is arranged near the propeller, and the inner port of the heat dissipation conduit is arranged opposite to the heat transfer frame. Thus, the outer port of the heat dissipation conduit is arranged near the propeller, and is used to collect the airflow generated by the propeller. Through the guiding effect of the heat dissipation conduit, the airflow generated by the propeller can flow into the heat transfer frame to form a heat dissipation channel of the battery box, thereby dissipating the heat inside the drone, realizing partial energy recovery and utilization, and saving energy and protecting the environment.

[0015] In some embodiments, the heat transfer frame includes a plurality of first heat dissipation plates arranged side by side and spaced apart, a fixing strip connecting the tops of the plurality of first heat dissipation plates, and a heat conductive base connected to the bottoms of the first heat dissipation plates; the plurality of first heat dissipation plates and the side walls of the battery box form a plurality of cavities for accommodating batteries. Thus, the batteries are modularized and dispersed in a plurality of cavities, so that rapid heat dissipation of the batteries can be achieved.

[0016] In some embodiments, the sliding device includes a first suction slope, the battery box also includes a second suction slope corresponding to the first suction slope, and the suction device includes a magnet disposed on the first suction slope or the second suction slope; the external force acting on the heat conductive base can drive the sliding device sucked on the battery box to move. Thus, the suction force is generated by the magnet and the magnetic material, which facilitates the rapid installation of the battery box.

[0017] In some embodiments, a second heat sink is further provided in the battery box, and the second heat sink is arranged perpendicular to the first heat sink, thereby further improving the heat dissipation efficiency.

[0018] In some embodiments, the first inclined rail is inclined to the upper right and the angle between the first inclined rail and the bottom surface of the battery box is in the range of 40°-60°, thereby facilitating the sliding rod to slide to the locking position where the notch is located, so as to realize the disassembly of the battery box.

[0019] In some embodiments, the second inclined rail is inclined to the upper left and the angle between the second inclined rail and the bottom surface of the battery box is in the range of 20°-30°, thereby facilitating the second end of the slide bar to slide to the starting position and reset to achieve installation of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A top view of a drone according to an embodiment of the present invention;

[0021] Figure 2 This is the main view of the drone;

[0022] Figure 3 A front view of a battery compartment and a battery box according to another embodiment of the present invention;

[0023] Figure 4 This is the right side view of the battery compartment and battery box;

[0024] Figure 5 It is a partial enlarged view of the sliding device;

[0025] Figure 6 This is a state diagram of the sliding device and the sliding rod during the movement process when the battery box is removed;

[0026] Figure 7 This is a diagram of the battery box being separated from the battery compartment.

[0027] In the figure:

[0028] 1. Body; 2. Propeller; 3. Battery compartment; 31. Embedding hole; 32. Conductive interface; 33. Sliding groove; 4. Battery box; 41. Heat dissipation guide tube; 42. First heat sink; 43. Fixing bar; 44. Heat-conducting base; 45. Second heat sink; 46. Second suction slope; 5. Sliding device; 51. Groove; 52. First vertical rail; 53. First slope; 54. Arc rail; 55. Second vertical rail; 56. Second slope; 57. Notch; 58. Block; 59. First suction slope; 6. Slide rod; 7. Spring; 8. Spring assembly; 9. Magnet. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0031] Figure 1 The figure schematically shows a drone device for an offshore wind farm according to an embodiment of the present invention. Figures 1 to 4 As shown, the device includes a body 1 with a battery compartment 3, a propeller 2 rotatably connected to the body 1, a battery box 4 installed in the battery compartment 3, and also includes: a charging point arranged at sea, a nearby fully charged battery point, a spare battery that provides kinetic energy for the battery replacement process, a sliding device 5 that can move up and down along the battery compartment 3, a sliding rod 6 that is driven by the sliding device 5 to rotate, an elastic member whose first end is connected to the battery compartment 3 and whose second end is connected to the bottom end of the sliding device 5, and a spring group 8 arranged at the top end of the battery compartment 3. In this example, the elastic member is a spring 7; the sliding device 5 is provided with an inwardly recessed groove 51, the first end of the sliding rod 6 is rotatably connected to the battery compartment 3 through an embedded hole 31, and the second end of the sliding rod 6 can slide in the groove 51, and a suction device is provided between the sliding device 5 and the battery box 4. When the gap between the sliding device 5 and the battery box 4 is small, the suction device can generate an automatic suction force, for example, by a magnet 9 (such as Figure 5 ); a conductive interface 32 is provided on the side wall of the battery compartment 3, which is used to connect the battery box 4 to the conductive interface 32 after installation to power the drone; the sliding device 5 includes an initial position and a pop-up position relative to the battery compartment 3. Taking the horizontal flight posture of the drone as a reference, the initial position of the sliding device 5 is at the bottom, and the pop-up position is at the top; when the sliding device 5 is in the initial position, the battery box 4 is attracted to the sliding device 5 through the attraction device; when the sliding device 5 is moved to the pop-up position by an external force, the elastic member is in a stretched state, the spring group 8 is in a compressed state and can provide a thrust to the battery box 4 to disengage the sliding device 5, and at the same time, the slide bar 6 is rotated to the locked position.

[0032] The drone device for offshore wind farms of the present invention is used in conjunction with battery charging points and nearby fully charged battery points arranged at any position in the offshore wind farm. When the drone battery is too low, the drone is controlled to fly to a battery charging point near the sea, and descends once toward the charging point. External force pressing can be achieved, so that the sliding device 5 moves upward relative to the battery compartment 3, driving the slide bar 6 to start rotating in the vertical plane, the elastic member starts to stretch, and the spring group 8 starts to compress at the same time. When the sliding device 5 moves to the preset pop-up position, the external force disappears, and under the pulling force of the elastic member, the second end of the slide bar 6 slides in the groove 51 of the sliding device 5 to the locking position, so that the position of the sliding device 5 in the battery compartment 3 is locked. In this process, the spring group 8 pushes the battery box 4, which can overcome the suction force between the battery box 4 and the sliding device 5, so that the battery box 4 and the battery The compartment 3 is separated to realize the disassembly of the battery box 4, and the disassembled battery falls to the charging point for charging; then the small backup battery built into the drone provides instantaneous power, so that the drone moves horizontally to the adjacent fully charged battery point, and then the drone is controlled to descend once, and an external force is provided to the sliding device 5, so that the second end of the slide bar 6 slides out of the locking position, and under the pulling force of the elastic member, the sliding device 5 is lowered as a whole and moves to the initial position, and the gap between the sliding device 5 and the battery box 4 is reduced. At this time, the battery box 4 with a full battery is adsorbed on the sliding device 5 again under the suction force of the sliding device 5, and the battery box 4 is connected to the conductive interface 32, so as to realize the installation of the fully charged battery box 4. The device of the present invention has the beneficial effects of economic benefits and high degree of automation, can support the drone to inspect the offshore wind farm for a relatively long time, and basically does not require the intervention of the operator, can effectively ensure the energy supply of the drone, and more intelligently ensure the normal operation and maintenance of the offshore wind farm.

[0033] In a specific embodiment, Figure 4 and Figure 5 As shown, a sliding groove 33 is provided in the battery compartment 3, and the sliding device 5 can move up and down in the sliding groove 33. Therefore, by providing the sliding groove 33 in the battery compartment 3, the entire sliding device 5 can move up and down within the limitation of the sliding groove 33 under the action of external force. Figure 4 As shown, the sliding device 5 includes a first suction slope 59, and the battery box 4 also includes a second suction slope 46 corresponding to the first suction slope 59, so that the battery box 4 as a whole is similar to a trapezoidal shape. The suction device specifically includes a magnet 9 arranged on the first suction slope 59 or the second suction slope 46. The magnet 9 can be selectively arranged on the first suction slope 59, and the second suction slope 46 is made of a magnetic material, or the magnet 9 is arranged on the second suction slope 46, and the first suction slope 59 is made of a magnetic material. Therefore, when the gap between the sliding device 5 and the battery box 4 is small, the suction force is generated by the magnet 9 and the magnetic material, which facilitates the rapid installation of the battery box 4.

[0034] In another specific embodiment, Figure 5 As shown, the sliding device 5 is an integrally formed structure, which includes a first vertical rail 52, a first inclined rail 53, an arcuate rail 54, a second vertical rail 55, and a second inclined rail 56 which are connected in sequence counterclockwise, and form a groove 51 with a track loop; the second end of the slide bar 6 can slide in the groove 51 of the track loop, and the first inclined rail 53 and the arcuate rail 54 have a smooth transition, so that the slide bar 6 can slide from the first inclined rail 53 to the arcuate rail 54, and the connection point between the first inclined rail 53 and the arcuate rail 54 forms an upwardly protruding notch 57, and the position where the second end of the slide bar 6 slides to the notch 57 is the locking position of the slide bar 6.

[0035] In the above embodiment, the specific process of replacing the battery is as follows: Figure 5 This is the status before the battery is replaced. Figure 5 The position of the second end of the slide bar 6 shown in the figure is the starting position. When the drone needs to replace the battery, it is lowered once to the charging point to press the bottom of the battery box 4, so that the slide device 5 moves upward in the slide groove 33, driving the second end of the slide bar 6 to move downward relative to the slide device 5 in the first vertical rail 52 (as shown in FIG. Figure 6 The spring 7 starts to stretch, and at the same time, the top surface of the battery box 4 acts on the spring group 8 to compress the spring group 8. When the sliding device 5 moves to the upper pop-up position, the external force disappears. Under the pulling force of the elastic member, the second end of the sliding rod 6 enters the first inclined rail 53 from the first vertical rail 52, and then slides to the locking position at the notch 57 (as shown in FIG. Figure 7 The sliding device 5 is locked in the battery compartment 3, and during this process, the spring group 8 pushes the battery box 4 downward, which can overcome the magnetic force between the battery box 4 and the sliding device 5, so that the battery box 4 is separated from the battery compartment 3, and the battery box 4 is disassembled. The disassembled batteries fall to the charging point for charging. Next, the drone is instantly powered by a small backup battery built into the drone, allowing the drone to move horizontally to a nearby fully-charged battery point, and then the drone is controlled to descend once, and an external force is provided to the sliding device 5 through the battery box 4, so that the second end of the slide bar 6 slides out of the locked position, enters the second vertical rail 55 from the first inclined rail 53 and then enters the second inclined rail 56, and the second end of the slide bar 6 slides back to the starting position, completing the counterclockwise sliding route; under the pulling force of the spring 7, the sliding device 5 descends as a whole, moves and resets to the initial position, and the gap between the sliding device 5 and the battery box 4 is reduced. At this time, the battery box 4 with a fully-charged battery is adsorbed onto the sliding device 5 again under the suction force of the sliding device 5, and the battery box 4 is connected to the conductive interface 32, thereby realizing the installation of the fully-charged battery box 4.

[0036] Thus, a track loop is formed by the first vertical rail 52, the first inclined rail 53, the arc rail 54, the second vertical rail 55, and the second inclined rail 56. Under the drive of the sliding device 5, the second end of the slide bar 6 can slide counterclockwise in the track loop. In the process of the second end of the slide bar 6 sliding counterclockwise from the starting position to the upward protruding groove 57, the battery box 4 is separated from the battery compartment 3, and the battery box 4 is disassembled; thereafter, under the action of external force, the second end of the slide bar 6 rushes out of the locking position of the groove 57, and continues to slide counterclockwise to return to the starting position. In this process, the fully charged battery box 4 is installed, thereby completing the drone battery replacement process.

[0037] Furthermore, if Figure 5 As shown, a stopper 58 is provided in the groove 51 of the sliding device 5, and the outer side surface of the stopper 58 and the side wall of the groove 51 respectively form a first vertical rail 52, a first inclined rail 53, an arc rail 54, a second vertical rail 55 and a second inclined rail 56.

[0038] As a preferred embodiment, Figure 3 As shown, the battery box 4 includes a battery and a heat dissipation device, the heat dissipation device includes a heat dissipation guide tube 41 and a heat transfer frame, the battery is arranged in the heat transfer frame, the outer port of the heat dissipation guide tube 41 is arranged near the propeller 2, and the inner port of the heat dissipation guide tube is arranged opposite to the heat transfer frame. Therefore, the outer port of the heat dissipation guide tube 41 is arranged near the propeller 2, which is used to collect the airflow generated by the propeller 2 at work. Through the guiding effect of the heat dissipation guide tube 41, the airflow generated by the propeller 2 can flow into the heat transfer frame to form a heat dissipation channel of the battery box 4, so as to dissipate the heat of the internal body 1 of the drone, realize partial energy recovery and utilization, and save energy and protect the environment.

[0039] Furthermore, the heat transfer frame includes a plurality of first heat sinks 42 arranged side by side and spaced apart, a fixing bar 43 connecting the tops of the plurality of first heat sinks 42, and a heat conductive base 44 connected to the bottom of the first heat sink 42; the plurality of first heat sinks 42 and the side walls of the battery box 4 form a plurality of cavities for accommodating batteries. Thus, the batteries are modularized and dispersed in a plurality of cavities, which can achieve rapid heat dissipation of the batteries. The heat conductive base 44 forms the bottom of the battery box 4, and the drone descends once, and an external force is generated through the heat conductive base 44 and the charging point and the fully charged battery point, thereby pushing the sliding device 5 to move.

[0040] Preferably, the battery box 4 is further provided with a second heat sink 45, which is arranged perpendicular to the first heat sink 42. Thus, the heat dissipation efficiency is further improved.

[0041] Further preferably, the first inclined rail 53 is inclined to the upper right and the angle between it and the bottom surface of the battery box 4 is in the range of 40°-60°. Thus, it is convenient for the slide bar 6 to slide to the locking position where the notch 57 is located, so as to realize the removal of the battery box 4. The second inclined rail 56 is inclined to the upper left and the angle between it and the bottom surface of the battery box 4 is in the range of 20°-30°. Thus, it is convenient for the second end of the slide bar 6 to slide to the starting position and reset, so as to realize the installation of the battery box 4.

[0042] The drone device for offshore wind farms of the present invention is used in conjunction with battery charging points and adjacent fully charged battery points arranged at any position in the offshore wind farm, and combined with the relative movement of the sliding device 5 and the sliding rod 6, it can realize rapid battery replacement of the drone, has the beneficial effects of economic benefits and high degree of automation, can support the drone to inspect the offshore wind farm for a relatively long time, and basically does not require operator intervention, can effectively guarantee the energy supply of the drone, and more intelligently ensure the normal operation and maintenance of the offshore wind farm.

[0043] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope of protection of the present invention.

Claims

1. A drone device for an offshore wind farm, comprising a body with a battery compartment, a propeller rotatably connected to the body, and a battery box installed in the battery compartment, characterized in that: Also includes: A charging point at sea, a nearby fully charged battery point, a spare battery providing kinetic energy for the battery replacement process, a sliding device that can move up and down along the battery compartment, a sliding rod that is driven to rotate by the sliding device, an elastic member whose first end is connected to the battery compartment and whose second end is connected to the bottom end of the sliding device, and a spring group arranged at the top of the battery compartment; the sliding device is provided with an inwardly concave groove, the first end of the sliding rod is rotatably connected to the battery compartment, the second end of the sliding rod can slide in the groove, a suction device is provided between the sliding device and the battery box, and a conductive interface is provided on the side wall of the battery compartment; The sliding device comprises an initial position and an ejection position relative to the battery compartment; When the sliding device is in the initial position, the battery box is attracted to the sliding device through the attraction device; When the sliding device is moved to the pop-up position by external force, the elastic member is in a stretched state, the spring group is in a compressed state and can provide a thrust to the battery box to disengage from the sliding device, and rotate the slide rod to the locked position.

2. The UAV for offshore wind farm according to claim 1, characterized in that: A sliding groove is arranged in the battery compartment, and the sliding device can move up and down in the sliding groove.

3. The UAV device for offshore wind farm according to claim 2, characterized in that: The sliding device is integrally formed, and includes a first vertical rail, a first inclined rail, an arc-shaped rail, a second vertical rail, and a second inclined rail which are sequentially connected counterclockwise to form a groove having a track loop; the first inclined rail and the arc-shaped rail have a smooth transition, and the second end of the slide bar can slide in the groove of the track loop, and the connection point between the first inclined rail and the arc-shaped rail forms an upwardly protruding notch, and the position where the second end of the slide bar slides to the notch is the locking position of the slide bar.

4. The UAV device for offshore wind farm according to claim 3, characterized in that: A stopper is provided in the groove of the sliding device, and the outer side surface of the stopper and the side wall of the groove respectively form the first vertical rail, the first inclined rail, the arc rail, the second vertical rail and the second inclined rail.

5. The UAV device for offshore wind farm according to any one of claims 1 to 4, characterized in that: The battery box includes a battery and a heat dissipation device, the heat dissipation device includes a heat dissipation guide tube and a heat transfer frame, the battery is arranged in the heat transfer frame, the outer port of the heat dissipation guide tube is arranged close to the propeller, and the inner port of the heat dissipation heat conduction tube is arranged opposite to the heat transfer frame.

6. The UAV device for offshore wind farm according to claim 5, characterized in that: The heat transfer frame includes a plurality of first heat dissipation plates arranged side by side and spaced apart, a fixing strip connecting the tops of the plurality of first heat dissipation plates, and a heat conduction base connected to the bottoms of the first heat dissipation plates; The first heat dissipation plates and the side walls of the battery box form a plurality of cavities for accommodating batteries.

7. The UAV device for offshore wind farm according to claim 6, characterized in that: The sliding device includes a first attraction slope, the battery box also includes a second attraction slope corresponding to the first attraction slope, and the attraction device includes a magnet arranged on the first attraction slope or the second attraction slope; external force acting on the heat conductive base can drive the sliding device attracted to the battery box to move.

8. The UAV device for offshore wind farm according to claim 6, characterized in that: The battery box is also provided with a second heat sink, which is arranged perpendicular to the first heat sink.

9. The UAV device for offshore wind farm according to claim 4, characterized in that: The first inclined rail is inclined to the upper right and the angle between the first inclined rail and the bottom surface of the battery box is in the range of 40°-60°.

10. The UAV device for offshore wind farm according to claim 3, characterized in that: The second inclined rail is inclined to the upper left and the included angle between the second inclined rail and the bottom surface of the battery box is in the range of 20°-30°.

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