Full-automatic take-up and pay-off power supply system for supplying power to unmanned aerial vehicle

Abstract

The utility model discloses a full-automatic take-up and pay-off power supply system for supplying power to an unmanned aerial vehicle, which relates to the technical field of unmanned aerial vehicle power supply and is characterized by comprising a mooring box body, a reel, a reciprocating wire arranging mechanism, a cable and a power supply module, the reciprocating wire arranging mechanism is arranged in the mooring box body and located on one side of the winding wheel, the cable is connected with the power module and extends to the outside of the mooring box body through the winding wheel and the reciprocating wire arranging mechanism, and the power module is fixedly arranged in the mooring box body; the system automatically identifies the state of the unmanned aerial vehicle, does not need manual switching, is more convenient to operate, can counteract inertia, prevents cables from loosening and stacking, reduces faults, is modularized and portable, guarantees long endurance and stable power supply of the unmanned aerial vehicle, can enable the cables to be uniformly wound, avoids disorder, and improves the reliability of the system.

Description

Technical Field

[0001] This utility model relates to the field of power supply technology for unmanned aerial vehicles (UAVs), and specifically to a fully automatic cable reeling and unloading power supply system for powering UAVs. Background Technology

[0002] Tethered drone power supply systems typically use a ground power source to provide continuous power to the drone via cable, enabling long-term hovering operations. However, existing tethered power supply systems have the following drawbacks:

[0003] 1. Most tethered drone line retrieval systems on the market use a switch to toggle between retrieving and releasing the line. Operating the drone requires simultaneously manipulating both the drone handle and this switch, which is quite cumbersome.

[0004] 2. None of the drone tethering cable reeling devices on the market have an inertial braking mechanism. When the drone rapidly ascends to the designated altitude and comes to rest, the reel will continue to release the cable due to inertia, causing the cable to accumulate in the reel box, resulting in tangling and a high failure rate.

[0005] 3. Most tethered cage systems on the market are large in size and have short winding cables, which do not provide good portability. Utility Model Content

[0006] The purpose of this utility model is to provide a fully automatic cable rewinding and unwinding power supply system for powering drones, which aims to achieve fully automatic cable rewinding and unwinding, suppress inertial slack, and be modular and portable.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A fully automatic cable reeling and unloading power system for powering unmanned aerial vehicles (UAVs) is characterized by comprising a tethering housing, a winding reel, a reciprocating cable management mechanism, a cable, and a power module. The winding reel is rotatably disposed inside the tethering housing. The reciprocating cable management mechanism is disposed inside the tethering housing and located on one side of the winding reel. The cable is connected to the power module and extends through the winding reel and the reciprocating cable management mechanism to the outside of the tethering housing. The power module is fixedly disposed inside the tethering housing.

[0009] The reciprocating cable management mechanism includes a cable manager and a reciprocating lead screw. The cable manager moves horizontally back and forth on the reciprocating lead screw. The cable manager includes a plate that moves horizontally back and forth on the reciprocating lead screw. A slider assembly is slidably arranged up and down on the inner side of the plate. The slider assembly includes a pulley, an adsorption wheel, and a connecting plate. The connecting plate is arranged between the pulley and the adsorption wheel. The adsorption wheel is located below the pulley. The cable passes through the space between the pulley and the adsorption wheel.

[0010] The lower inner side of the plate is provided with an adsorption mechanism, a conductive block and a conductive post. The middle part of the conductive block is rotatably connected to the inside of the plate through a rotating shaft and a return spring is provided at the rotating part. The adsorption wheel is located above one end of the conductive block and the conductive post is located above the other end of the conductive block. The conductive post passes vertically through the plate and is fixedly installed on the plate. The adsorption mechanism is fixedly installed inside the cable organizer plate and located below the adsorption wheel. When the slider assembly slides to the bottom, the adsorption wheel is adsorbed by the adsorption mechanism and contacts the conductive block. The other end of the conductive block contacts the conductive post and triggers the cable take-up signal.

[0011] In a preferred embodiment, a wire pressing mechanism is provided on the inner side of the tethering box and on the outer side of the winding wheel. The wire pressing mechanism includes a wire pressing bracket, a wire pressing shaft, and a spring. One end of the wire pressing bracket is rotatably connected to the inner side of the tethering box via a rotating shaft. The wire pressing shaft is rotatably connected to the other end of the wire pressing bracket. The outer side of the wire pressing shaft abuts against the surface of the winding wheel. The spring forces the wire pressing shaft to press the winding wheel tightly.

[0012] In a preferred embodiment, the spring is a torsion spring, which is connected between the lower side of the wire clamping bracket and the inner side of the tethering box.

[0013] In a preferred embodiment, the spring is a compression spring, which is connected between the upper side of the wire clamp and the inner side of the tethering box.

[0014] In a preferred embodiment, the adsorption wheel is an iron pulley, and the adsorption mechanism is a magnet.

[0015] In a preferred embodiment, the adsorption mechanism is a suction cup, and the adsorption mechanism adsorbs an adsorption wheel or a connecting plate that connects to the adsorption wheel.

[0016] In a preferred embodiment, the tethering box is externally equipped with wiring terminals. These terminals are electrically connected to a reciprocating lead screw, which in turn is electrically connected to a plate. The plate is electrically connected to a rotating shaft, which is electrically connected to a conductive block. A conductive post is slidably connected to the plate, and an insulating ring is provided between the conductive post and the plate. The wiring terminals are electrically connected to a control system. Power is supplied to the conductive block via the reciprocating lead screw, the plate, and the rotating shaft. When the conductive block and conductive post are in a conductive state, a winding motor is triggered to take in the wire; when the conductive block and conductive post are disconnected, the system switches to a wire release mode.

[0017] In a preferred embodiment, the pressure shaft has a bearing embedded inside, and the axial direction of the pressure shaft is parallel to the rotation axis of the winding wheel.

[0018] In the preferred embodiment, the sum of the adsorption force of the adsorption mechanism on the adsorption wheel and the weight of the slider assembly itself is less than the rated tension of the cable on the slider assembly when the UAV ascends.

[0019] In a preferred embodiment, the power module's power interface supports ACV input, and its built-in AC / DC conversion module outputs high-voltage DC power.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] Fully automatic cable rewinding: The magnetic slider mechanism automatically identifies the drone's status, eliminating the need for manual switching and making operation more convenient.

[0022] Anti-tangling design: The wire pressing mechanism presses the winding wheel tightly in real time to counteract inertia, prevent cable slack from accumulating, and reduce failures.

[0023] Modular and portable: The integrated cabinet design is small in size and light in weight, and is compatible with various power supply methods such as mains power and energy storage power.

[0024] High-efficiency power supply: Built-in AC / DC conversion module outputs high-voltage DC power to ensure long flight time and stable power supply for drones.

[0025] Intelligent cable management: The reciprocating cable management mechanism ensures that cables are evenly wound, avoiding tangles and improving system reliability. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0028] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0029] Figure 4 This utility model Figure 3 A detailed structural diagram of part A;

[0030] In the diagram: 1-Tethering box, 2-Winding wheel, 3-Reciprocating cable management mechanism, 4-Cable, 5-Power module, 6-Cable pressing mechanism, 31-Cable organizer, 32-Reciprocating lead screw, 311-Pulley, 312-Adsorption wheel, 313-Connecting plate, 314-Adsorption mechanism, 315-Conductive block, 316-Conductive column, 317-Plate, 318-Rotating shaft, 319-Insulating ring, 61-Cable pressing bracket, 62-Cable pressing shaft, 63-Spring, 64-Rotating shaft. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1 to 4 , Example

[0033] A fully automatic cable reeling and unloading power supply system for powering unmanned aerial vehicles (UAVs) is characterized by comprising a tethering housing 1, a winding reel 2, a reciprocating cable management mechanism 3, a cable 4, and a power module 5. The winding reel 2 is rotatably disposed inside the tethering housing 1. The reciprocating cable management mechanism 3 is disposed inside the tethering housing 1 and located on one side of the winding reel 2. The cable 4 is connected to the power module and extends to the outside of the tethering housing 1 through the winding reel 2 and the reciprocating cable management mechanism 3. The power module 5 is fixedly disposed inside the tethering housing 1.

[0034] The reciprocating cable management mechanism 3 includes a cable manager 31 and a reciprocating screw 32. The cable manager 31 reciprocates horizontally on the reciprocating screw 32. The cable manager 31 includes a plate 317 that reciprocates horizontally on the reciprocating screw 32. A slider assembly is slidably arranged on the inner side of the plate 317. The slider assembly includes a pulley 311, an adsorption wheel 312 and a connecting plate 313. The connecting plate 313 is arranged between the pulley 311 and the adsorption wheel 312. The adsorption wheel 312 is located below the pulley 311. The cable 4 passes through the space between the pulley 311 and the adsorption wheel 312.

[0035] The lower inner side of the plate 317 is provided with an adsorption mechanism 314, a conductive block 315, and a conductive post 316. The middle part of the conductive block 315 is rotatably connected to the inside of the plate 317 through a rotating shaft 318, and a return spring is provided at the rotating part. The conductive block 315 is similar to a seesaw, and its two ends can move up and down alternately. The adsorption wheel 312 is located above one end of the conductive block 315, and the conductive post 316 is located above the other end of the conductive block 315. The conductive post 316 passes vertically through the plate 317 and is fixedly installed on the plate 317. The adsorption mechanism 314 is fixedly installed inside the cable organizer plate 317 and located below the adsorption wheel 312. When the slider assembly slides to the bottom, the adsorption wheel 312 is adsorbed by the adsorption mechanism 314 and comes into contact with the conductive block 315. The other end of the conductive block 315 comes into contact with the conductive post 316 and triggers the cable take-up signal.

[0036] A wire pressing mechanism 6 is provided on the inner side of the tethering box 1 and on the outer side of the winding wheel 2. The wire pressing mechanism 6 includes a wire pressing bracket 61, a wire pressing shaft 62 and a spring 63. One end of the wire pressing bracket 61 is rotatably connected to the inner side of the tethering box 1 through a rotating shaft 64. The wire pressing shaft 62 is rotatably connected to the other end of the wire pressing bracket 61. The outer side of the wire pressing shaft 62 abuts against the surface of the winding wheel 2. The spring 63 forces the wire pressing shaft 62 to press the winding wheel 2 tightly.

[0037] Spring 63 is a torsion spring, which is connected between the lower side of the wire clamp bracket 61 and the inner side of the tethering box 1.

[0038] The adsorption wheel 312 is an iron pulley, and the adsorption mechanism 314 is a magnet.

[0039] The tethering housing 1 has external wiring terminals, which are electrically connected to the reciprocating lead screw 32. The reciprocating lead screw is electrically connected to the plate 317, which is electrically connected to the rotating shaft 318. The rotating shaft 318 is electrically connected to the conductive block 315. The conductive post 316 is slidably connected to the plate 317, and an insulating ring 319 is provided between the conductive post 316 and the plate 317. The insulating ring 319 serves to insulate the conductive post 316 from the plate 317. The wiring terminals are electrically connected to the control system. The wiring terminals sequentially energize the conductive block 315 through the reciprocating lead screw 32, the plate 317, and the rotating shaft 318. When the conductive block 315 and the conductive post 316 are in a conductive state, the winding motor is triggered to take in the wire. When the conductive block 315 and the conductive post 316 are disconnected, the wire is released. The conductive post 316 not only cooperates with the conductive block 315 to trigger winding and wire protection, but the slidable connection between the plate 317 and the conductive post 316 also provides guidance and stability. The conductive block 315 of this utility model does not require a complicated wiring process to conduct electricity. It utilizes the components of the cable organizer 31 itself to achieve conductivity, making the structure of the cable organizer 31 simple and avoiding the adverse effects of complicated wiring on the cable organizer 31.

[0040] The pressure shaft 62 has a bearing embedded inside, and the axial direction of the pressure shaft 62 is parallel to the rotation axis of the winding wheel 2.

[0041] The sum of the adsorption force of the adsorption mechanism 314 on the adsorption wheel 312 and the weight of the slider assembly itself is less than the rated tension of the cable 4 on the slider assembly when the UAV ascends.

[0042] The power interface of power module 5 supports AC220V input and has a built-in AC / DC conversion module to output high-voltage DC power. Example

[0043] Spring 63 is a compression spring, connected between the upper side of the wire clamping bracket 61 and the inner side of the tethering box 1. Adsorption mechanism 314 is a suction cup, which adsorbs the adsorption wheel 312 or the connecting plate 313 that connects to the adsorption wheel 312. Other structures are consistent with those in Embodiment 1.

[0044] The sum of the adsorption force of the adsorption mechanism 314 on the adsorption wheel 312 and the weight of the slider assembly itself is less than the rated tension of the cable 4 on the slider assembly when the drone ascends. The power module 5 supports AC220V input and has a built-in AC / DC conversion module to output high-voltage DC power. The tethering box is independently modular, reducing the product size and enhancing its portability. It also enhances the product's versatility, allowing it to be used with mains power, energy storage power, and generators at any time, improving product flexibility and application scenarios.

[0045] The tethered housing 1 of this utility model serves as an integrated carrier with a compact internal layout. By integrating the winding wheel 2, the reciprocating cable management mechanism 3, and the power module 5 into the same housing, a modular design is achieved, facilitating portability and adaptability to different power inputs (such as AC power and energy storage power). The winding wheel 2 is responsible for cable winding and unwinding; its rotation shaft is linked to a motor and driven by a control system. The reciprocating cable management mechanism 3 drives the cable organizer 31 to move horizontally via a reciprocating lead screw 32, ensuring even cable winding. The cable 4 is a high-voltage DC cable that connects the power module 5 to the drone, serving both power supply and signal transmission functions. The power module 5 has a built-in AC / DC conversion circuit that converts the input AC220V into high-voltage DC power to meet the drone's long-endurance requirements.

[0046] This invention forms a cable channel between the pulley 311 and the adsorption wheel 312, ensuring that the slider moves up and down when the cable moves. The adsorption wheel 312 can be directly or indirectly adsorbed by the adsorption mechanism 314. The weight of the slider assembly and the adsorption force of the adsorption mechanism 314 together constitute the trigger threshold. When the drone descends, causing the cable 4 to slacken, the slider assembly falls due to gravity, and the adsorption wheel 312 is adsorbed by the adsorption mechanism 314, pushing the conductive block 315, which is in a energized state, to contact the conductive post 316 and conduct electricity, triggering the take-up signal. In the conductive state, the adsorption force of the adsorption mechanism 314 has the function of de-jittering the contact conductive structure. When the drone ascends, the tension of the cable 4 overcomes the adsorption force of the adsorption mechanism 314 and the weight of the slider assembly, causing the slider assembly to move upward, and the conductive block 315 to separate from the conductive post 316, triggering the release signal or the cable 4 to be in a free retraction state. The return spring ensures that the conductive block 315 is reset when not subjected to external force and does not contact the conductive post 316, avoiding false signal triggering.

[0047] The pressure shaft 62 and bearing of this invention reduce the frictional resistance between the pressure shaft and the winding wheel 2 through the bearing, thus avoiding additional energy consumption; the function of the spring 63 is to force the pressure shaft 62 to always be in close contact with the surface of the winding wheel, and to maintain the tension of the cable 4 through pressure when the cable 4 is slack, preventing accumulation; when the diameter of the winding wheel changes with the winding and unwinding, the pressure bracket 61 adaptively adjusts the angle around the hinge point to maintain the pressing effect; based on the principle of inertia suppression, when the winding wheel 2 continues to rotate due to inertia, the pressure shaft 62 constrains the cable 4 through continuous pressure, preventing multiple turns of slack.

[0048] The adsorption mechanism 314 of this utility model has certain advantages over other adsorption mechanisms, mainly in that when the slider assembly leaves the magnet or suction cup, the system starts to release the cable. At this time, the cable 4 does not have to bear the pulling resistance of the magnet or suction cup because the adsorption wheel 312 has already left the adsorption range of the magnet or suction cup. This can better protect the cable 4. When the slider assembly falls into the magnetic adsorption or suction cup range, the slider assembly can be firmly attracted by the adsorption mechanism 314. When the cable is retracted, the slider assembly will not cause poor contact between the conductive block 315 and the conductive post 316 due to vibration or other factors.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A full-automatic take-up and pay-off power supply system for powering a drone, characterized in that: The device includes a mooring box (1), a winding wheel (2), a reciprocating cable management mechanism (3), a cable (4), and a power module (5). The winding wheel (2) is rotatably disposed inside the mooring box (1). The reciprocating cable management mechanism (3) is disposed inside the mooring box (1) and located on one side of the winding wheel (2). The cable (4) is connected to the power module and extends to the outside of the mooring box (1) through the winding wheel (2) and the reciprocating cable management mechanism (3). The power module (5) is fixedly disposed inside the mooring box (1). The reciprocating cable management mechanism (3) includes a cable manager (31) and a reciprocating screw (32). The cable manager (31) moves horizontally back and forth on the reciprocating screw (32). The cable manager (31) includes a plate (317) that moves horizontally back and forth on the reciprocating screw (32). A slider assembly is slidably arranged on the inner side of the plate (317). The slider assembly includes a pulley (311), an adsorption wheel (312), and a connecting plate (313). The connecting plate (313) is arranged between the pulley (311) and the adsorption wheel (312). The adsorption wheel (312) is located below the pulley (311). The cable (4) passes through the pulley (311) and the adsorption wheel (312). The lower inner side of the plate (317) is provided with an adsorption mechanism (314), a conductive block (315) and a conductive post (316). The middle part of the conductive block (315) is rotatably connected to the inside of the plate (317) through a rotating shaft (318) and a return spring is provided at the rotating part. The adsorption wheel (312) is located above one end of the conductive block (315), and the conductive post (316) is located above the other end of the conductive block (315). The conductive post (316) passes vertically through the plate (317) and is fixedly installed on the plate (317). The adsorption mechanism (314) is fixedly installed inside the cable organizer plate (317) and located below the adsorption wheel (312). When the slider assembly slides to the bottom, the adsorption wheel (312) is adsorbed by the adsorption mechanism (314) and contacts the conductive block (315). The other end of the conductive block (315) contacts the conductive post (316) and triggers the cable take-up signal.

2. The full-automatic take-up and pay-off power supply system for unmanned aerial vehicle according to claim 1, characterized in that: A wire pressing mechanism (6) is provided on the inner side of the tethering box (1) and on the outer side of the winding wheel (2). The wire pressing mechanism (6) includes a wire pressing bracket (61), a wire pressing shaft (62) and a spring (63). One end of the wire pressing bracket (61) is rotatably connected to the inner side of the tethering box (1) through a rotating shaft (64). The other end of the wire pressing shaft (62) is rotatably connected to the wire pressing bracket (61). The outer side of the wire pressing shaft (62) abuts against the surface of the winding wheel (2). The spring (63) forces the wire pressing shaft (62) to press the winding wheel (2) tightly.

3. The fully automatic reel power system for powering a drone of claim 2, wherein: The spring (63) is a torsion spring, and the spring (63) is connected between the lower side of the wire clamp (61) and the inner side of the tether box (1).

4. The fully automatic reel power system for powering a drone of claim 2, wherein: The spring (63) is a compression spring, which is connected between the upper side of the wire clamp (61) and the inner side of the tethering box (1).

5. The fully automatic reel power system for powering a drone of claim 1, wherein: The adsorption wheel (312) is an iron pulley, and the adsorption mechanism (314) is a magnet.

6. The fully automatic reel power system for powering a drone of claim 1, wherein: The adsorption mechanism (314) is a suction cup, and the adsorption mechanism (314) adsorbs the adsorption wheel (312) or the connecting plate (313) that connects to the adsorption wheel (312).

7. The fully automatic reel power system for powering a drone of claim 1, wherein: The tethered box (1) is provided with wiring terminals on the outside. The wiring terminals are electrically connected to the reciprocating lead screw (32). The reciprocating lead screw is electrically connected to the plate (317). The plate (317) is electrically connected to the rotating shaft (318). The rotating shaft (318) is electrically connected to the conductive block (315). The conductive post (316) is slidably connected to the plate (317), and an insulating ring (319) is provided between the conductive post (316) and the plate (317).

8. The fully automatic reel power system for powering a drone of claim 2, wherein: The pressure shaft (62) has a bearing embedded inside, and the axial direction of the pressure shaft (62) is parallel to the rotation axis of the winding wheel (2).

9. The fully automatic reel power system for powering a drone of claim 1, wherein: The sum of the adsorption force of the adsorption mechanism (314) on the adsorption wheel (312) and the weight of the slider assembly itself is less than the rated tension of the cable (4) on the slider assembly when the UAV ascends.

10. The fully automatic reel power system for powering a drone of claim 1, wherein: The power module (5) has a power interface that supports AC220V input and a built-in AC / DC conversion module that outputs high-voltage DC power.

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