Variable-frequency charging cable for unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to a variable-frequency charging cable for an unmanned aerial vehicle, which comprises a cable, and a power connector and a charging connector which are respectively arranged at two ends of the cable, the charging connector comprises a terminal seat, a plurality of binding posts and a plurality of wiring insertion pieces which are arranged at the lower end of the terminal seat, guide posts which are arranged at the lower end of the terminal seat and are positioned on two sides of the binding posts, a PCB (Printed Circuit Board) and a cold-pressed terminal which are arranged at the upper end of the terminal seat, and an inner housing arranged at the upper end of the terminal seat, and the cable comprises a power line and a data line. The binding post and the upper end of the wiring insertion piece penetrate through the terminal base and protrude upwards, one end of the cold pressing terminal is fixed to the upper end of the binding post, the other end of the cold pressing terminal is connected with the power line, and the PCB is electrically connected with the upper end of the wiring insertion piece and connected with the data line. The design is convenient to produce and assemble, simple to operate and quick to charge.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, and particularly relates to a variable-frequency charging cable for an unmanned aerial vehicle. Background Technique

[0002] Unmanned aerial vehicles have been widely used in multi-scenario operations of "agriculture, forestry, animal husbandry, and fishery", such as: for multi-scenario use in farmland spraying, farmland sowing, fruit tree spraying, fruit tree sowing, aquaculture sowing, forestry aerial spraying, forest fire fighting, disaster rescue, traffic monitoring, environmental law enforcement, water area environment dynamic detection, etc.

[0003] For the batteries of aircraft with relatively large load capacities, the volume and capacitance are relatively small. On the premise that it is difficult to break through the battery capacity per unit volume, the flight endurance time supported is 0.5H to 3.5H. The endurance time does not meet the expectations of consumers, and frequent charging is required.

[0004] However, according to the current charging method, affected by the charging environment (220V & 380V) alternating current, it can no longer meet the usage requirements of consumers, thus restricting the actual usage efficiency of the aircraft. How to charge conveniently and quickly after a single flight outdoors has become an urgent problem to be solved. Content of the Utility Model

[0005] In order to solve the above problems, the utility model provides a variable-frequency charging cable for an unmanned aerial vehicle, which is convenient for production and assembly, simple to operate, and can charge quickly.

[0006] The technical solution adopted by the utility model is to provide a variable-frequency charging cable for an unmanned aerial vehicle, which includes a cable, a power supply connector and a charging connector respectively arranged at both ends of the cable. The charging connector includes a terminal seat, a plurality of wiring posts and a plurality of wiring inserts arranged at the lower end of the terminal seat, guiding columns arranged at the lower end of the terminal seat and on both sides of the wiring posts, a PCB board and cold-pressed terminals arranged at the upper end of the terminal seat, and an inner housing arranged at the upper end of the terminal seat. The cable includes a power line and a data line. The upper ends of the wiring posts and the wiring inserts protrude upward through the terminal seat. One end of the cold-pressed terminal is fixed to the upper end of the wiring post, and the other end of the cold-pressed terminal is connected to the power line. The PCB board is electrically connected to the upper ends of the wiring inserts and is connected to the data line. The lower end of the inner housing is open and covers the upper end of the terminal seat. The PCB board and the cold-pressed terminals are located inside the inner housing.

[0007] It further includes an outer housing arranged on the inner housing, side convex parts arranged on both sides of the outer housing, and side baffle plates arranged on both sides of the lower end of the outer housing. The lower end of the outer housing is provided with an opening. The inner housing and the terminal seat are inserted into the outer housing through the lower end port of the outer housing. The side convex parts protrude outward toward both sides respectively. The side baffle plates are arranged on both sides of the opening at the lower end of the outer housing and are respectively located outside the guiding columns.

[0008] It further includes a wire sleeve. Corresponding wire inlet ports are provided on the inner housing and the outer housing. The wire sleeve is sleeved on the cable, and one end of the wire sleeve is fixed at the wire inlet port of the outer housing.

[0009] The cable further includes a fan power supply line. A fan power supply connector is also provided on the outer housing. The inner end of the fan power supply connector passes through the outer housing and the inner housing and is electrically connected to the fan power supply line.

[0010] A convex part protruding upward is provided on the front side of the upper end of the outer housing.

[0011] The power supply connector includes a live wire terminal and a neutral wire terminal connected to the power supply line, a signal transmission connector connected to the data line, and a fan power supply connector connected to the fan power supply line.

[0012] Four wiring posts and four wiring inserts are provided respectively. The wiring posts are arranged in an array around the wiring inserts.

[0013] The beneficial effects of the present utility model are as follows: A variable-frequency charging cable for an unmanned aerial vehicle is provided. The wiring posts use large-current wiring copper posts for current conduction. The cold-press terminals are used to connect the wiring posts and the power supply line, with firm connection and stable current conduction, which is convenient for assembly. The PCB board is simultaneously connected to the wiring inserts and the data line, integrating the signal recognition and charging structures into one. When inserting the charging connector, it realizes the signal protocol connection function with the aerial vehicle, eliminating the need to additionally connect a signal line for matching, reducing the charging operation amount. The guiding posts can guide during the insertion of the charging connector, and at the same time greatly reduce the force on the wiring posts, making the operation simpler and not easily damaged, and the charging connector has a longer service life. The inner housing covers the connection positions of the PCB board, the cold-press terminals, and the cable and the charging connector, providing protection against dust and water, effectively avoiding accidental touch and electric leakage. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the terminal block of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the inner housing of the present utility model;

[0017] Figure 4 is a schematic structural diagram of the outer housing of the present utility model.

[0018] In the drawings, 1 is a cable, 2 is a terminal block, 3 is a terminal post, 4 is a wiring insert, 5 is a guide post, 6 is a PCB board, 7 is a cold-pressed terminal, 8 is an inner housing, 9 is a power cord, 10 is a data line, 11 is an outer housing, 12 is a side convex part, 13 is a side baffle, 14 is a wire sleeve, 15 is a fan power supply connector, 16 is an upper convex part, 17 is a live wire terminal, 18 is a neutral wire terminal, 19 is a signal transmission connector, and 20 is a fan power connector. Detailed implementation mode

[0019] As Figures 1-4 shown, a variable-frequency charging cable for an unmanned aerial vehicle of the present utility model includes a cable 1, a power supply connector and a charging connector respectively arranged at both ends of the cable 1. The charging connector includes a terminal block 2, a plurality of terminal posts 3 and a plurality of wiring inserts 4 arranged at the lower end of the terminal block 2, guide posts 5 arranged at the lower end of the terminal block 2 and on both sides of the terminal posts 3, a PCB board 6 and a cold-pressed terminal 7 arranged at the upper end of the terminal block 2, and an inner housing 8 arranged at the upper end of the terminal block 2. The cable 1 includes a power cord 9 and a data line 10. The upper ends of the terminal posts 3 and the wiring inserts 4 protrude upward through the terminal block 2. One end of the cold-pressed terminal 7 is fixed to the upper end of the terminal post 3, and the other end of the cold-pressed terminal 7 is connected to the power cord 9. The PCB board 6 is electrically connected to the upper ends of the wiring inserts 4 and is connected to the data line 10. The lower end of the inner housing 8 is open and covers the upper end of the terminal block 2. The PCB board 6 and the cold-pressed terminal 7 are located inside the inner housing 8.

[0020] The power supply connector is used to connect to the power supply, and the charging connector is used to connect to the unmanned aerial vehicle. The terminal post 3 uses a large-current wiring copper post for current conduction. The cold-pressed terminal 7 is used to connect the terminal post 3 and the power cord 9, with a stable connection and stable current conduction, which is convenient for assembly. The PCB board 6 is connected to both the wiring insert 4 and the data line 10 at the same time, integrating the signal recognition and charging structures into one. When the charging connector is inserted, it realizes the signal protocol connection function with the aircraft, eliminating the need to additionally connect a signal line for matching, reducing the charging operation amount. The guide post 5 can guide during the insertion of the charging connector and at the same time greatly reduce the force on the terminal post 3, making the operation simpler and less likely to be damaged, and the charging connector has a longer service life. The inner housing 8 covers the PCB board 6, the cold-pressed terminal 7, and the connection position between the cable and the charging connector, providing protection, dust prevention, and waterproofing effects, effectively avoiding accidental touch. This design uses a large-current copper post to conduct large current, integrates the signal recognition function and the charging function together, is simple to operate, convenient to use, easy to produce and assemble, and significantly improves the charging speed of the unmanned aerial vehicle.

[0021] As Figure 4As shown, it further includes an outer housing 11 provided on the inner housing 8, side convex portions 12 provided on both sides of the outer housing 11, and side baffles 13 provided on both sides of the lower end of the outer housing 11. An opening is provided at the lower end of the outer housing 11. The inner housing 8 and the terminal block 2 are inserted into the outer housing 11 from the lower end port of the outer housing 11. The side convex portions 12 protrude outward toward both sides, and the side baffles 13 are provided on both sides of the opening at the lower end of the outer housing 11 and are respectively located outside the guide posts 5.

[0022] Adding the outer housing 11 further enhances the protection performance. Moreover, side convex portions 12 and side baffles 13 are added to the outer housing 11. The side convex portions 12 can facilitate hand-holding during personnel operation, making it convenient for plugging and unplugging. The side baffles 13 can protect the side surfaces of the wiring terminals 3 and the guide posts 5 and do not hinder plugging and unplugging.

[0023] As Figures 1-2 shown, it further includes a wire sleeve 14. Corresponding wire inlet ports are provided on the inner housing 8 and the outer housing 11. The wire sleeve 14 is sleeved on the cable 1, and one end of the wire sleeve 14 is fixed at the wire inlet port of the outer housing 11.

[0024] The wire sleeve 14 can protect the position where the cable enters the outer housing 11 and can also prevent the cable 1 from being bent when in use at the place where it enters the outer housing 11.

[0025] As Figure 4 shown, the cable 1 further includes a fan power supply line. A fan power supply connector 15 is also provided on the outer housing 11. The inner end of the fan power supply connector 15 passes through the outer housing 11 and the inner housing 8 and is electrically connected to the fan power supply line.

[0026] The fan power supply line can be used for an unmanned aerial vehicle with a fan heat dissipation function, with a wider application range and more flexible use.

[0027] As Figure 1 shown, a upward protruding upper convex portion 16 is provided on the front side of the upper end of the outer housing 11.

[0028] The upper convex portion 16 can facilitate hand-holding by the user, avoid hand slipping during pressing, and make the operation more convenient.

[0029] As Figure 1 shown, the power connector includes a live wire terminal 17 and a neutral wire terminal 18 connected to the power line 9, a signal transmission connector 19 connected to the data line 10, and a fan power connector 20 connected to the fan power supply line.

[0030] The power connector connects each wire in the cable 1 separately. The live wire terminal 17, the neutral wire terminal 18, the signal transmission connector 19, and the fan power connector 20 are separately connected to the power supply device, and the connection is more stable.

[0031] As Figure 1 shown, four terminal posts 3 and four connection inserts 4 are provided, and the terminal posts 3 are arranged in an array around the connection inserts 4.

[0032] The terminal posts 3 are large in size and high in strength, while the connection inserts 4 are low in strength and are easily bent by force, with a height lower than that of the terminal posts 3. Through this design, the structure is more compact, which can protect the connection inserts 4 and facilitate the connection of the PCB board 6.

Claims

1. A variable-frequency charging cable for an unmanned aerial vehicle, comprising a cable (1), a power connector and a charging connector respectively arranged at two ends of the cable (1), and characterized in that: The charging connector includes a terminal block (2), a plurality of terminal posts (3) and a plurality of wiring inserts (4) arranged at the lower end of the terminal block (2), guide posts (5) arranged at the lower end of the terminal block (2) and on both sides of the terminal posts (3), a PCB board (6) and cold pressing terminals (7) arranged at the upper end of the terminal block (2), and an inner housing (8) arranged at the upper end of the terminal block (2). The cable (1) includes a power line (9) and a data line (10). The upper ends of the terminal posts (3) and the wiring inserts (4) protrude upward through the terminal block (2). One end of the cold pressing terminal (7) is fixed to the upper end of the terminal post (3), the other end of the cold pressing terminal (7) is connected to the power line (9), the PCB board (6) is electrically connected to the upper ends of the wiring inserts (4) and is connected to the data line (10). The lower end of the inner housing (8) is open and covers the upper end of the terminal block (2). The PCB board (6) and the cold pressing terminals (7) are located inside the inner housing (8).

2. The variable-frequency charging cable for an unmanned aerial vehicle according to claim 1, wherein: It further includes an outer housing (11) arranged on the inner housing (8), side convex parts (12) arranged on both sides of the outer housing (11), and side baffles (13) arranged on both sides of the lower end of the outer housing (11). An opening is arranged at the lower end of the outer housing (11). The inner housing (8) and the terminal block (2) are inserted into the outer housing (11) through the lower end port of the outer housing (11). The side convex parts (12) protrude outward toward both sides respectively. The side baffles (13) are arranged on both sides of the opening at the lower end of the outer housing (11) and are respectively located outside the guide posts (5).

3. A variable-frequency charging cable for an unmanned aerial vehicle according to claim 2, characterized in that: It further includes a wire sleeve (14). Corresponding wire inlet ports are arranged on the inner housing (8) and the outer housing (11). The wire sleeve (14) is sleeved on the cable (1) and one end of the wire sleeve (14) is fixed at the wire inlet port of the outer housing (11).

4. The variable-frequency charging cable for an unmanned aerial vehicle according to claim 2, characterized in that: The cable (1) further includes a fan power supply line. A fan power supply connector (15) is further arranged on the outer housing (11). The inner end of the fan power supply connector (15) passes through the outer housing (11) and the inner housing (8) and is electrically connected to the fan power supply line.

5. The variable-frequency charging cable for an unmanned aerial vehicle according to claim 2, characterized in that: A convex part (16) protruding upward is arranged on the front side of the upper end of the outer housing (11).

6. The variable-frequency charging cable for an unmanned aerial vehicle according to claim 1, wherein: The power connector includes a live wire terminal (17) and a neutral wire terminal (18) connected to the power line (9), a signal transmission connector (19) connected to the data line (10), and a fan power connector (20) connected to the fan power supply line.

7. A variable-frequency charging cable for an unmanned aerial vehicle according to claim 1, characterized in that: Four terminal posts (3) and four wiring inserts (4) are respectively arranged. The terminal posts (3) are arranged in an array around the wiring inserts (4).

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