Electric power inspection unmanned aerial vehicle

Abstract

The utility model provides an electric power inspection unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles, the unmanned aerial vehicle comprises a machine shell, an avionics onboard module, a positioning onboard module and a cooling fan, the avionics onboard module is fixed in the machine shell, and a cooling fin is arranged on one side of the avionics onboard module; the positioning onboard module is in communication connection with the avionics onboard module through a first flexible circuit board; an air outlet of the cooling fan is communicated with the outside, an air inlet of the cooling fan is arranged close to a cooling fin of the avionics onboard module, the cooling fan and the positioning onboard module are located on the same side of the avionics onboard module, and the positioning onboard module is arranged close to the air inlet of the cooling fan. According to the electric power inspection unmanned aerial vehicle, by limiting the position of the cooling fan, a good cooling effect can be achieved on the positioning onboard module and the avionics onboard module, and normal work and operation of the positioning onboard module and the avionics onboard module are effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to an electric power inspection unmanned aerial vehicle. Background Art

[0002] UAV is an aircraft controlled by radio remote control equipment and self-contained program control device. It has the characteristics of small size and easy operation. With the continuous advancement and development of UAV technology, UAV is widely used in more and more industries, such as terrain exploration, high-altitude power inspection and outdoor high-altitude photography.

[0003] When drones used for power inspections are inspecting high-altitude cables, their avionics modules and positioning modules may overheat in high-temperature environments, when used continuously for long periods of time, or when frequent high-intensity data processing is performed. In this case, their performance may be affected or even cause the system to crash. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a power inspection drone to solve the problem in the prior art that the temperature of the internal module of the drone is easily too high due to high temperature or long-term operation.

[0005] Based on the above purpose, the utility model provides a power inspection drone, including:

[0006] Machine housing;

[0007] An avionics onboard module is fixed in the housing, and a heat sink is provided on one side of the avionics onboard module;

[0008] The positioning onboard module is communicatively connected with the avionics onboard module via a first flexible printed circuit board;

[0009] A cooling fan, whose air outlet is connected to the outside, and whose air inlet is arranged near the heat sink of the avionics onboard module. The cooling fan and the positioning onboard module are located on the same side of the avionics onboard module, and the positioning onboard module is arranged near the air inlet of the cooling fan.

[0010] Furthermore, the drone is equipped with an active antenna and an auxiliary antenna;

[0011] The positioning onboard module includes a main antenna input interface and an auxiliary antenna input interface, the main antenna input interface is configured to be connected to an active antenna, and the auxiliary antenna input interface is configured to be connected to an auxiliary antenna.

[0012] Furthermore, a first matching portion is provided on the housing, and a second matching portion is provided on the side end of the positioning onboard module, and the first matching portion and the second matching portion can be matched and snap-fitted to fix the positioning onboard module on the housing.

[0013] Further, the first mating portion includes a slot provided on the housing, and a snap-in component elastically extending into the slot along the axial direction of the slot, and the second mating portion includes a plug connector provided on the side end of the positioning board-mounted module, and the plug connector forms a mating snap connection with the snap-in component when inserted into the slot.

[0014] Furthermore, the clamping member is rotatably connected to the housing, an elastic member is sleeved on the pivot end of the clamping member, the clamping member includes an insertion section and an action section respectively arranged on both sides of the pivot end, the elastic member has an elastic force driving the insertion section to extend into the slot, and the action section can drive the insertion section to disengage from the slot when it is rotated under force.

[0015] Furthermore, the housing comprises an upper cover and a lower cover, and the upper cover and the lower cover are butt-jointed and fixed.

[0016] Furthermore, connecting shafts are fixedly connected to the four sides of the lower cover of the fuselage, and rotors are detachably connected to the connecting shafts.

[0017] Furthermore, a tripod is fixedly mounted on the bottom end of the lower cover of the fuselage, and the tripod has two tripods arranged opposite to each other.

[0018] Furthermore, it also includes:

[0019] The flight control module is communicatively connected to the avionics onboard module via a second flexible circuit board. The flight control module is fixedly connected to the positioning onboard module via fasteners that penetrate both of them. The positioning onboard module and the cooling fan are fixedly connected via fasteners that penetrate both of them.

[0020] Furthermore, the first flexible circuit board and / or the second flexible circuit board is connected to the avionics onboard module via a plug connector.

[0021] From the above description, it can be seen that the power inspection UAV provided by the utility model has a heat sink arranged on one side of the avionics onboard module, and the heat sink can effectively conduct the heat of the avionics onboard module. The air outlet of the cooling fan is connected to the outside, and the air inlet is arranged close to the heat sink of the avionics onboard module. When the cooling fan is working, the hot air flow of the heat sink can be conducted to the outside, thereby fully dissipating the heat and cooling the avionics onboard module.

[0022] In addition, the cooling fan and the positioning onboard module are located on the same side of the avionics onboard module, and the positioning onboard module is arranged close to the air inlet of the cooling fan. The negative pressure airflow of the air inlet of the cooling fan can conduct the hot air flow around the positioning onboard module to the outside of the machine casing, which effectively improves the heat dissipation effect of the positioning onboard module and the avionics onboard module, optimizes the module layout in the machine casing, and is conducive to ensuring the normal and efficient operation of the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is an exploded view of the power inspection drone in the embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of the connection between the avionics onboard module, the positioning onboard module and the cooling fan in the embodiment of the utility model;

[0026] Figure 3 It is a schematic diagram of the partial connection structure between the positioning onboard module and the housing in the embodiment of the utility model.

[0027] Description of Reference Numerals

[0028] 1. Housing; 11. Upper cover of the fuselage; 12. Lower cover of the fuselage; 13. Connecting shaft; 14. Rotor; 15. Tripod; 16. Slot; 17. Adapter; 171. Action section; 172. Insertion section; 173. Pivot end;

[0029] 2. Avionics onboard module; 21. Heat sink; 3. Positioning onboard module; 31. Plug connector; 32. Card slot;

[0030] 4. Cooling fan; 5. Flight control module; 6. First flexible circuit board; 7. Second flexible circuit board. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0032] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the utility model should be the common meanings understood by people with ordinary skills in the field to which the disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] like Figure 1 and Figure 2 As shown, one or more embodiments of the present application provide a power inspection drone, including a housing 1, an avionics onboard module 2, a positioning onboard module 3 and a cooling fan 4.

[0034] Among them, the avionics onboard module 2 is fixed in the casing 1, and a heat sink 21 is provided on one side of the avionics onboard module 2; the positioning onboard module 3 is communicatively connected with the avionics onboard module 2 through the first flexible circuit board 6; the air outlet of the cooling fan 4 is connected to the outside, and the air inlet is arranged close to the heat sink 21 of the avionics onboard module 2, the cooling fan 4 and the positioning onboard module 3 are located on the same side of the avionics onboard module 2, and the positioning onboard module 3 is arranged close to the air inlet of the cooling fan 4.

[0035] From the above description, it can be seen that the power inspection drone described in the present application has a heat sink 21 arranged on one side of the avionics onboard module 2. The heat sink 21 can effectively conduct the heat of the avionics onboard module 2. The air outlet of the cooling fan 4 is connected to the outside, and the air inlet is arranged close to the heat sink 21 of the avionics onboard module 2. When the cooling fan 4 is working, the hot air flow of the heat sink 21 can be conducted to the outside, thereby fully dissipating the heat and cooling the avionics onboard module 2.

[0036] In addition, the cooling fan 4 and the positioning onboard module 3 are located on the same side of the avionics onboard module 2, and the positioning onboard module 3 is arranged close to the air inlet of the cooling fan 4. The negative pressure airflow of the air inlet of the cooling fan 4 can conduct the hot air flow around the positioning onboard module 3 to the outside of the machine casing 1, effectively improving the heat dissipation effect of the positioning onboard module 3 and the avionics onboard module 2, optimizing the module layout in the machine casing 1, and ensuring the normal and efficient operation of the UAV.

[0037] It should be noted that the avionics onboard module 2 uses an avionics PCB board (Printed Circuit Board) in the related art, and the avionics PCB board is a circuit board used for the avionics system of the drone. In the drone, the avionics system includes various sensors, communication equipment, navigation systems, flight controllers, etc. These devices need to be connected and controlled through PCB. This will not be repeated in the embodiments of the present application.

[0038] In some embodiments, the drone is loaded with an active antenna and an auxiliary antenna; the positioning onboard module 3 includes a main antenna input interface and an auxiliary antenna input interface, the main antenna input interface is configured to be connected to the active antenna, and the auxiliary antenna input interface is configured to be connected to the auxiliary antenna.

[0039] In the above embodiment, illustratively, the internal interface of the positioning onboard module 3 is designed to be 50Ω characteristic impedance, and the antenna input interface has a feeding output function. When the positioning onboard module 3 is used as a fixed base station and a mobile station, it is only necessary to connect the main antenna input interface; when used as a mobile station and providing a directional function, the main antenna input interface is connected to the active antenna, and the auxiliary antenna interface is connected to the auxiliary antenna. By default, the azimuth information output by the board is the angle between the clockwise direction and the true north direction, with the main antenna input interface as the vector starting point and the auxiliary antenna interface as the vector end point.

[0040] In the above embodiment, exemplarily, the positioning onboard module 3 is also provided with an antenna state detection circuit and four input power supplies. Specifically, the positioning onboard module 3 includes a module main power supply, a backup power supply, and two antenna feed power supplies; the module main power supply is used to supply power to the module's integrated circuit, and the backup power supply can still supply power to the module's RTC circuit and backup RAM when the module's main power supply is powered off, so as to realize the hot start function and shorten the positioning time; the two antenna feed power supplies are respectively connected to two antenna input interfaces, supporting 3.3V~5.5V external feed input. When there is an external feed input, the antenna input interface of the module will provide feed to the active antenna or auxiliary antenna, and the antenna state detection circuit in the module is enabled, which can output the antenna state of the antenna input interface in real time; when there is no external feed input, that is, the antenna feed power supply is not connected, the antenna input interface of the module does not feed externally, and the antenna state detection function fails. Of course, the positioning onboard module 3 should also include other related components for realizing the positioning function, and these related components can be set with reference to the drone positioning module in the relevant technology, which will not be repeated in the embodiment of this application.

[0041] like Figure 2As shown, in some embodiments, the power inspection drone further includes a flight control module 5, which is communicatively connected to the avionics onboard module 2 via a second flexible circuit board 7, the flight control module 5 is fixedly connected to the positioning onboard module 3 via a fastener that penetrates both, and the positioning onboard module 3 is fixedly connected to the cooling fan 4 via a fastener that penetrates both. Exemplarily, the fastener may be a bolt.

[0042] Here, by connecting the flight control module 5, the positioning onboard module 3 and the cooling fan 4 together, the three are fixed to form a whole, which can effectively prevent the relative shaking of the modules caused by the vibration of the drone, thereby ensuring the positioning accuracy and flight work. The first flexible circuit board 6 and the second flexible circuit board 7 can use FPC (Flexible Printed Circuit), which can be bent, folded and twisted to adapt to complex three-dimensional shapes and compact space layouts, thereby facilitating the optimization of the overall internal structural layout of the drone.

[0043] like Figure 3 As shown, in some embodiments, a first mating portion is provided on the housing 1, and a second mating portion is provided on the side end of the positioning board module 3, and the first mating portion and the second mating portion can be engaged and snap-fitted to fix the positioning board module 3 on the housing 1.

[0044] Further, the first matching portion includes a slot 16 provided on the housing 1, and a clamping member 17 elastically extending into the slot 16 along the axial direction of the slot 16, and the second matching portion includes a plug connector 31 provided on the side end of the positioning board module 3, and the plug connector 31 forms a matching and snapping connection with the clamping member 17 when inserted into the slot 16. Here, a recessed card slot 32 is provided on one side end of the plug connector 31 facing the clamping member 17, and when the clamping member 17 extends into the slot 16, it is matched and snapped with the card slot 32 of the plug connector 31 to limit the plug connector 31 from being separated from the slot 16, thereby fixing the positioning board module 3 on the housing 1.

[0045] Exemplarily, the clamping member 17 is rotatably connected to the housing 1, and an elastic member is sleeved on the pivot end 173 of the clamping member 17. The clamping member 17 includes an insertion section 172 and an action section 171 disposed on both sides of the pivot end 173. The elastic member has an elastic force to drive the insertion section 172 to extend into the slot 16, and the action section 171 can drive the insertion section 172 to disengage from the slot 16 when it is rotated under force. The elastic member is a torsion spring member, and here, by pressing the action section 171 with external force, the insertion section 172 is driven to disengage from the slot 16 by the lever principle, thereby contacting the clamping constraint of the plug connector 31 and the clamping member 17.

[0046] In the above embodiment, a plurality of first matching portions and a plurality of second matching portions may be provided, so as to improve the fixing effect of the positioning onboard module 3 as much as possible.

[0047] By setting the first matching portion and the second matching portion to fix the positioning onboard module 3 on the machine housing 1, the positioning onboard module 3 can be quickly disassembled and assembled, thereby facilitating the replacement and maintenance of the positioning onboard module 3. In addition, illustratively, the first flexible circuit board 6 and the second flexible circuit board 7 are connected to the avionics onboard module 2 through a plug connector, so that when removing the positioning onboard module 3, it is only necessary to unplug the plug connector and to release the fixed state of the positioning onboard module 3 and the machine housing 1 at this position by toggling the action segment 171 of the card connector 17, which is convenient, fast and labor-saving.

[0048] It should be noted that, in some embodiments, the flight control module 5, the positioning board module 3 and the cooling fan 4 can be connected together, and the side end of the positioning board module 3 uses the second matching part to form a snap-on detachable connection with the first matching part of the housing 1, thereby reducing the disassembly work under the premise of ensuring the connection stability of the entire module. Of course, the positioning board module 3 can also be independently assembled and fixed on the housing 1, and the positioning board module 3 is provided with multiple second matching parts on the side to snap-on with the housing, and the flight control module 5 and the cooling fan 4 are fixedly connected.

[0049] like Figure 1 As shown, in some embodiments, the housing 1 includes an upper cover 11 and a lower cover 12, the upper cover 11 and the lower cover 12 are fixedly connected, the lower cover 12 is fixedly connected with connecting shafts 13 on all sides, the connecting shafts 13 are detachably connected with rotors 14, and the bottom of the lower cover 12 is also fixedly installed with a tripod 15, the tripod 15 has two relatively arranged tripods 15, and the tripod 15 can provide a guarantee for the smooth landing of the drone. In addition, the drone should also have other related components for achieving normal operation, such as a battery module, which will not be repeated in the embodiments of this application.

[0050] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0051] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A power inspection drone, characterized in that: include: Machine housing; An avionics onboard module is fixed in the housing, and a heat sink is provided on one side of the avionics onboard module; The positioning onboard module is communicatively connected with the avionics onboard module via a first flexible printed circuit board; A cooling fan, whose air outlet is connected to the outside, and whose air inlet is arranged near the heat sink of the avionics onboard module. The cooling fan and the positioning onboard module are located on the same side of the avionics onboard module, and the positioning onboard module is arranged near the air inlet of the cooling fan.

2. The power inspection drone according to claim 1, characterized in that: The UAV is equipped with an active antenna and an auxiliary antenna; The positioning onboard module includes a main antenna input interface and an auxiliary antenna input interface, the main antenna input interface is configured to be connected to an active antenna, and the auxiliary antenna input interface is configured to be connected to an auxiliary antenna.

3. The power inspection drone according to claim 1, characterized in that: The housing is provided with a first matching portion, and the side end of the positioning onboard module is provided with a second matching portion. The first matching portion and the second matching portion can be matched and snapped together to fix the positioning onboard module on the housing.

4. The power inspection drone according to claim 3, characterized in that: The first mating portion includes a slot provided on the housing, and a snap-in component that can elastically extend into the slot, and the second mating portion includes a plug connector provided on the side end of the positioning board module, and the plug connector forms a mating snap connection with the snap-in component when inserted into the slot.

5. The power inspection drone according to claim 4, characterized in that: The clamping member is rotatably connected to the housing, and an elastic member is sleeved on the pivot end of the clamping member. The clamping member includes an insertion section and an action section respectively arranged on both sides of the pivot end. The elastic member has an elastic force driving the insertion section to extend into the slot, and the action section can drive the insertion section to disengage from the slot when it is rotated under force.

6. The power inspection drone according to claim 1, characterized in that: The housing comprises an upper cover and a lower cover, and the upper cover and the lower cover are butt-jointed and fixed.

7. The power inspection drone according to claim 6, characterized in that: The four sides of the lower cover of the fuselage are respectively fixedly connected with connecting shafts, and the connecting shafts are detachably connected with rotors.

8. The power inspection drone according to claim 6, characterized in that: A tripod is also fixedly mounted on the bottom end of the lower cover of the fuselage, and the tripod has two tripods arranged opposite to each other.

9. The power inspection drone according to claim 1, characterized in that: Also includes: The flight control module is communicatively connected to the avionics onboard module via a second flexible circuit board. The flight control module is fixedly connected to the positioning onboard module via fasteners that penetrate both of them. The positioning onboard module and the cooling fan are fixedly connected via fasteners that penetrate both of them.

10. The power inspection drone according to claim 9, characterized in that: The first flexible circuit board and / or the second flexible circuit board are connected to the avionics onboard module via a plug connector.

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