A mobile direct current charging station for electric vehicles

Abstract

The application provides a mobile electric vehicle direct current charging station and relates to a charging device. The mobile electric vehicle direct current charging station comprises an unmanned vehicle charging assembly and an unmanned aerial vehicle charging assembly. The unmanned vehicle serves as a main trunk mobile charging station and is responsible for large-scale maneuvering and carrying main energy; the unmanned aerial vehicle serves as a branch delivery unit, is normally stored in the unmanned vehicle for replenishment and protection, and flies to a target vehicle to carry out short-time power supply when the target vehicle is located at a position that cannot be directly reached by the unmanned vehicle due to traffic congestion, terrain blockage and the like, so that the target vehicle can move to the nearest charging station, thereby effectively solving the ultimate problem that a traditional rescue vehicle cannot approach the target vehicle due to traffic congestion and terrain blockage, and realizing three-dimensional extension of a service range.

Description

Technical Field

[0001] This invention relates to a charging device, and more particularly to a mobile DC charging station for electric vehicles. Background Technology

[0002] With the rapid increase in the popularity of electric vehicles, their unique "range anxiety," especially when suddenly the battery runs out (breaks down), has become a significant pain point affecting user experience and public road safety. Currently, solutions for emergency charging of vehicles on the road mainly rely on two traditional technological approaches: one is a network of charging piles deployed in fixed locations, and the other is ground-based mobile charging vehicles (i.e., "power banks"). Fixed charging piles cannot move and are of no help to vehicles that break down en route; while ground-based mobile charging vehicles have a certain degree of mobility, their rescue efficiency is completely limited by the two-dimensional road network. In the actual urban traffic environment, broken-down vehicles are often located in the middle of elevated bridges, in the core lanes of congested traffic, or in parking spaces tightly surrounded by other vehicles. These scenarios create physical barriers that are difficult for ground vehicles to overcome.

[0003] Therefore, the existing ground rescue technology system often has an inherent capability limit: it cannot reliably overcome the "last 100 meters" obstacle, causing many vehicles in urgent need of rescue to be unable to obtain power within a safe time. This not only exacerbates traffic congestion but also poses a serious secondary accident safety hazard. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a mobile DC charging station for electric vehicles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A mobile DC charging station for electric vehicles includes: The unmanned vehicle charging component includes an unmanned vehicle and a first charging unit, wherein the first charging unit is located inside the unmanned vehicle. The drone charging component includes a drone and a second charging unit. The second charging unit is located on the drone, which is located inside the unmanned vehicle. The drone can carry the second charging unit out of the unmanned vehicle.

[0006] Preferably, the first charging unit includes a first power battery, a first cable winch, a first charging gun, and a first cable. The first power battery and the first cable winch are connected inside the unmanned vehicle. One end of the first cable is electrically connected to the first power battery, and the other end of the first cable is electrically connected to the first charging gun after being wound around the first cable winch.

[0007] Preferably, the second charging unit includes a second power battery, a second cable winch, a second charging gun, and a second cable. The second power battery and the second cable winch are connected to the lower part of the drone. One end of the second cable is electrically connected to the second power battery, and the other end of the second cable is wound around the second cable winch and then electrically connected to the second charging gun.

[0008] Preferably, the drone charging assembly also includes four sets of buffer positioning components located at the four corners of the bottom of the second power battery. Each set of buffer positioning components includes a positioning unit, which is used to buffer the impact force when the drone lands.

[0009] Preferably, the buffer positioning assembly further includes a buffer unit for positioning the drone charging assembly on the upper part of the vehicle's outer shell.

[0010] Preferably, the positioning unit includes a suction cup and a bellows, with one end of the bellows connected to the suction cup and the other end of the bellows connected to the buffer unit.

[0011] Preferably, the buffer unit includes a cylinder, a piston, a rod, a spring, and a retaining ring. The cylinder is connected to the bottom of the second power battery. The end of the bellows away from the suction cup is connected to the bottom of the cylinder. The piston is slidably connected to the inner wall of the cylinder. One end of the rod is connected to the piston. The other end of the rod passes downward through the bottom of the cylinder and the bellows and extends into the suction cup. The retaining ring is fitted onto the rod. The spring is fitted onto the rod, and both ends of the spring abut against the opposite surfaces of the bellows and the retaining ring, respectively. An air passage is provided inside the rod. One end of the air passage communicates with the inner cavity of the cylinder below the piston, and the other end of the air passage communicates with the inside of the suction cup. An air hole is provided at the top of the cylinder.

[0012] Preferably, the drone charging assembly also includes a corrugated air tube and an air pipe. The corrugated air tube is vertically connected to the upper part of the drone. One end of the air pipe is connected to the corrugated air tube, and the other end of the air pipe is connected to the air vent. The corrugated air tube is provided with a reflective strip.

[0013] Preferably, a rubber block is connected to the end of the rod away from the piston, and the bottom surface of the rubber block is at the same level as the bottom periphery of the suction cup.

[0014] Preferably, the unmanned vehicle has a cabin on its upper part, which is used to accommodate the drone. The top of the cabin has an openable hatch. When the drone is parked in the cabin, the top of the corrugated air tube abuts against the lower surface of the hatch.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The unmanned vehicle serves as the main mobile charging station, responsible for large-scale mobility and carrying the main energy. The drone serves as a branch delivery unit, normally stored in the unmanned vehicle for resupply and protection. When the target vehicle is located in a position that the unmanned vehicle cannot directly reach due to traffic congestion, terrain obstruction, etc. (such as the middle section of an overpass or a blocked parking space), the drone carries a second charging unit to fly to the target vehicle for short-term charging, so that the target vehicle can drive to the nearest charging station. This effectively solves the ultimate problem that traditional rescue vehicles cannot approach the target vehicle due to traffic congestion and terrain obstruction, and realizes a three-dimensional extension of the service range. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the mobile electric vehicle DC charging station proposed in this invention; Figure 2 A schematic diagram of the unmanned vehicle charging component in the mobile electric vehicle DC charging station proposed in this invention during charging. Figure 3 This is a schematic diagram of the structure of the drone charging component in the mobile electric vehicle DC charging station proposed in this invention when it is not in operation; Figure 4 This is a schematic diagram of the structure of the mobile electric vehicle DC charging station proposed in this invention when the positioning unit and buffer unit are not in operation; Figure 5 This is a schematic diagram of the structure of the drone charging component in the mobile electric vehicle DC charging station proposed in this invention during charging. Figure 6 This is a schematic diagram of the structure of the drone charging component in the mobile electric vehicle DC charging station proposed in this invention during operation. Figure 7 This is a schematic diagram of the positioning unit and buffer unit in the mobile electric vehicle DC charging station proposed in this invention during operation.

[0017] In the diagram: 1. Unmanned vehicle charging assembly; 11. Unmanned vehicle; 12. First power battery; 13. First cable winch; 14. First charging gun; 2. Drone charging assembly; 21. Drone; 22. Second power battery; 23. Second cable winch; 24. Second charging gun; 25. Buffer positioning assembly; 251. Positioning unit; 2511. Suction cup; 2512. Corrugated pipe; 252. Buffer unit; 2521. Cylinder; 2522. Piston; 2523. Rod; 2524. Spring; 2525. Retaining ring; 26. Corrugated air inflator. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0022] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0023] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, an embodiment of the present invention provides a mobile DC charging station for electric vehicles, comprising: The unmanned vehicle charging component 1 includes an unmanned vehicle 11 and a first charging unit, wherein the first charging unit is located inside the unmanned vehicle 11. The drone charging component 2 includes a drone 21 and a second charging unit. The second charging unit is located on the drone 21, which is located inside the unmanned vehicle 11. The drone 21 can carry the second charging unit out of the unmanned vehicle 11.

[0024] Specifically, the unmanned vehicle charging component 1 includes an unmanned vehicle 11 with autonomous driving or remote control capabilities. The unmanned vehicle 11 is essentially a mobile charging platform. A first charging unit is integrated and installed in the vehicle compartment or a specific cabin of the unmanned vehicle 11. The first charging unit may include an energy storage battery, a power conversion module, cable management equipment, and a charging interface. The drone charging component 2 includes a multi-rotor drone 21. A second charging unit is mounted on the fuselage structure of the drone 21. The second charging unit is actually a miniaturized and lightweight charging module optimized for aerial operations. When receiving a mission command, especially when the target vehicle is located in a position that the unmanned vehicle 11 cannot directly reach due to traffic congestion, terrain obstruction, etc. (such as the middle section of an overpass or a blocked parking space), the drone 21 can carry the second charging unit and fly out of the unmanned vehicle 11 autonomously or under control, cross obstacles, and quickly reach the location of the target vehicle.

[0025] In this optional embodiment, the unmanned vehicle 11 serves as the main mobile charging station, responsible for large-scale mobility and carrying the main energy source; the drone 21 serves as a branch delivery unit, normally housed inside the unmanned vehicle 11 for resupply and protection. When the target vehicle is located in a position that the unmanned vehicle 11 cannot directly reach due to traffic congestion, terrain obstruction, etc. (such as the middle section of an overpass or a blocked parking space), the drone carries a second charging unit to fly to the target vehicle for short-term charging, so that the target vehicle can drive to the nearest charging station. This effectively solves the ultimate problem that traditional rescue vehicles cannot approach the target vehicle due to traffic congestion and terrain obstruction, and realizes a three-dimensional extension of the service range.

[0026] Optionally, the first charging unit includes a first power battery 12, a first cable winch 13, a first charging gun 14 and a first cable. The first power battery 12 and the first cable winch 13 are connected inside the unmanned vehicle 11. One end of the first cable is electrically connected to the first power battery 12, and the other end of the first cable is electrically connected to the first charging gun 14 after being wound around the first cable winch 13.

[0027] Specifically, the first power battery 12 is the energy core of the unmanned vehicle 11 and the power source for external charging. It can provide continuous and stable DC power output for large-capacity power battery packs (such as lithium iron phosphate battery packs) and is fixedly installed in the frame or dedicated battery compartment of the unmanned vehicle 11. The first cable winch 13 is a cable management device, fixedly installed on the unmanned vehicle 11, located between the first power battery 12 and the external interface. Its core function is to automatically or semi-automatically reel in and out the first cable, ensuring that the cable extends in an orderly manner during operation and can be neatly retracted after operation to avoid tangling. The first charging gun 14 is a standard DC fast charging physical interface and complies with the national electric vehicle conductive charging standard. The first cable is the power carrier connecting the above components. One end of the cable is electrically connected to the positive and negative terminals of the output terminal of the first power battery 12 through the power distribution device. Most of the first cable is regularly wound and stored on the first cable winch 13. The other end of the cable passes through the first cable winch 13 and is finally electrically connected to the tail of the first charging gun 14.

[0028] In this optional embodiment, the first power battery 12 provides self-sufficient energy, eliminating dependence on the power grid at the work site. The combination of the first cable winch 13 and the first cable enables the orderly winding and storage of long-distance cables, avoiding operational hazards and inefficiencies caused by messy cable dragging at the site. It can also extend the service radius during a single parking by releasing the cable. The first charging gun 14 ensures compatibility with standard interfaces of electric vehicles on the market.

[0029] Optionally, the second charging unit includes a second power battery 22, a second cable winch 23, a second charging gun 24, and a second cable. The second power battery 22 and the second cable winch 23 are connected to the lower part of the drone 21. One end of the second cable is electrically connected to the second power battery 22, and the other end of the second cable is wound around the second cable winch 23 and then electrically connected to the second charging gun 24.

[0030] Specifically, the second power battery 22 is an independent energy source for the drone 21 to perform charging tasks. It can be a high-energy-density power battery (such as a ternary lithium battery) to meet the stringent requirements of the drone 21 for payload weight. The second power battery 22 can be fixedly installed on the lower structure of the drone 21 to lower the overall center of gravity and improve flight stability. The second cable winch 23 can be a small cable winding mechanism, also integrated into the lower part of the drone 21, located close to the second power battery 22. It is lightweight and small in size, specifically designed for managing short emergency second cables. The second charging gun 24 is a lightweight DC charging interface. One end of the second cable is electrically connected to the output end of the second power battery 22, the middle part is wound around the second cable winch 23, and its free end is electrically connected to the second charging gun 24. The second power battery 22 can be powered by the first power battery 12 so that the drone 21 can be recharged inside the unmanned vehicle 11. Both the first power battery 12 and the second power battery 22 can be recharged at nearby charging stations.

[0031] In this optional embodiment, the second power battery 22 provides the drone 21 with a dedicated independent power supply for the mission, and the second cable winch 23 is designed to be lightweight for aerial operations, ensuring that the cable is tightened during flight to prevent tangling with the propeller blades, and can be released in a controllable manner during operation. All components are concentrated in the lower part of the fuselage, optimizing the overall center of gravity of the aircraft.

[0032] Furthermore, the drone charging component 2 also includes four sets of buffer positioning components 25 located at the four corners of the bottom of the second power battery 22. Each set of buffer positioning components 25 includes a positioning unit 251, which is used to buffer the impact force when the drone 21 lands.

[0033] Specifically, a set of buffer positioning components 25 are set at the four corners of the bottom of the second power battery 22 to provide stable support. The core of each set of buffer positioning components 25 is the positioning unit 251. When the drone 21 lands on the target vehicle (such as the roof or hood), the positioning unit 251 will first contact the vehicle shell, which can effectively absorb and dissipate the vertical impact kinetic energy of the drone 21, thereby buffering the impact on the drone 21's own structure and the second charging unit.

[0034] Optionally, the buffer positioning assembly 25 also includes a buffer unit 252 for positioning the drone charging assembly 2 on the upper part of the vehicle's outer shell.

[0035] Specifically, each set of buffer positioning components 25 integrates a buffer unit 252 on the basis of the positioning unit 251. The buffer unit 252 is activated after the positioning unit 251 completes the initial impact absorption. Its function is to actively anchor the drone charging component 2 to the vehicle's top shell, which solves the risk of the drone 21 slipping or overturning on the vehicle roof due to road vibration, crosswinds or slight vehicle movement. It ensures that the drone 21 and the vehicle maintain a stable relative position throughout the charging cycle, improving the safety of charging operations. At the same time, if the vehicle is not parked in the emergency lane but in the driving lane, by landing and fixing the drone charging component 2 to the vehicle's top shell, the overall height of the vehicle is indirectly increased, making it easier for drivers behind to see it from a greater distance, providing valuable extra reaction time.

[0036] Optionally, the positioning unit 251 includes a suction cup 2511 and a bellows 2512, one end of the bellows 2512 is connected to the suction cup 2511, and the other end of the bellows 2512 is connected to the buffer unit 252.

[0037] Specifically, suction cup 2511 is a component that comes into direct contact with the vehicle body and is usually made of soft and elastic rubber or silicone material. Its bowl-shaped structure can form a preliminary seal with the car body when pressure is applied. Bellows 2512 is a flexible tubular component that can extend and retract axially and has an accordion-like pleated structure.

[0038] In this optional embodiment, the suction cup 2511 provides a good fit surface with car bodies of different curvatures, and the bellows 2512, as a key component, is itself an efficient primary damper due to its axial compressibility. Its flexibility allows the four sets of components to achieve independent adaptive fit on uneven roof surfaces, ensuring effective contact of the suction cup 2511.

[0039] Furthermore, the buffer unit 252 includes a cylinder 2521, a piston 2522, a rod 2523, a spring 2524, and a retaining ring 2525. The cylinder 2521 is connected to the bottom of the second power battery 22. One end of the bellows 2512 away from the suction cup 2511 is connected to the bottom end of the cylinder 2521. The piston 2522 is slidably connected to the inner wall of the cylinder 2521. One end of the rod 2523 is connected to the piston 2522, and the other end of the rod 2523 passes downward through the cylinder 2521. The bottom end of 1 extends into the bellows 2512 and into the suction cup 2511. The retaining ring 2525 is fitted onto the rod 2523. The spring 2524 is fitted onto the rod 2523, and the two ends of the spring 2524 abut against the opposite surfaces of the bellows 2512 and the retaining ring 2525, respectively. The rod 2523 has an air passage. One end of the air passage is connected to the inner cavity of the cylinder 2521 below the piston 2522, and the other end of the air passage is connected to the inside of the suction cup 2511. The top of the cylinder 2521 has an air hole.

[0040] Specifically, the cylinder 2521 is a cylindrical closed cavity, fixedly connected to the bottom of the second power battery 22. The upper end of the bellows 2512 is connected to the bottom end of the cylinder 2521. The piston 2522 is placed inside the cylinder 2521, and its outer edge forms a sliding connection with the inner wall of the cylinder 2521 (usually through a sealing ring), thereby dividing the inner cavity of the cylinder 2521 into upper and lower air chambers. The rod 2523 is a rigid rod, the upper end of which is fixedly connected to the center of the piston 2522, and the lower end passes through the bottom end of the cylinder 2521 and the internal cavity of the bellows 2512, and extends into the suction cup. The internal space of 2511 has a retaining ring 2525 fixedly fitted on the rod 2523 and located inside the bellows 2512. The spring 2524 is fitted on the rod 2523, with its upper and lower ends abutting against the inner top wall of the bellows 2512 (or the connection with the cylinder 2521) and the upper surface of the retaining ring 2525, respectively. The rod 2523 has a through air passage inside, the lower end of which communicates with the internal space of the suction cup 2511, and the upper end of which communicates with the lower air chamber of the cylinder 2521 below the piston 2522. In addition, an air hole is opened at the top of the cylinder 2521 (i.e. above the piston 2522).

[0041] In this optional embodiment, upon landing, the impact force compresses the spring 2524 by moving the rod 2523 upwards, consuming energy and achieving mechanical cushioning. At the same time, the piston 2522 moves upwards to compress the upper air chamber, drawing air from the suction cup 2511 through the air passage in the rod 2523, creating a vacuum negative pressure, thereby firmly adhering to the vehicle body and achieving a secure fixation. The upward movement of the piston 2522 also discharges the air in the upper air chamber from the air hole, thereby improving the stability of the drone charging component 2.

[0042] Optionally, the drone charging assembly 2 also includes a corrugated air tube 26 and an air tube. The corrugated air tube 26 is vertically connected to the upper part of the drone 21. One end of the air tube is connected to the corrugated air tube 26, and the other end of the air tube is connected to the air hole. The corrugated air tube 26 is provided with reflective strips.

[0043] In this optional embodiment, when the compressed air generated during the buffering process is injected into the corrugated air inflator 26 through the air pipe, the latter quickly inflates and extends vertically. The extended column can be equipped with reflective material or lights to become a conspicuous road warning sign, which greatly improves the warning distance and effect for vehicles behind at the work site, and increases road safety. The erection of the corrugated air inflator 26 is a clear ready signal, intuitively informing the driver that the drone 21 has been stably positioned.

[0044] Furthermore, a rubber block is connected to the end of the rod 2523 away from the piston 2522, and the bottom surface of the rubber block is at the same level as the bottom periphery of the suction cup 2511.

[0045] In this optional embodiment, the soft rubber block serves as the final contact medium, completely avoiding the risk of the rod 2523 directly scratching the vehicle's paint or sunroof glass.

[0046] Furthermore, the unmanned vehicle 11 has a cabin on its upper part, which is used to accommodate the drone 21. The top of the cabin has an openable hatch. When the drone 21 is parked in the cabin, the top of the corrugated air inflator 26 abuts against the lower surface of the hatch.

[0047] Specifically, a closed cabin is provided on the top or rear of the unmanned vehicle 11. Its size and shape are specifically designed to accommodate and protect the drone 21. The top of the cabin is equipped with an electrically slidable or flip-open hatch. When the drone 21 is parked inside the cabin in a retracted state, its corrugated inflation tube 26 is in a naturally contracted, uninflated state. At this time, the top of the corrugated inflation tube 26 is precisely against the lower surface of the closed hatch.

[0048] In this optional embodiment, when the drone 21 is parked, its bottom contacts the cabin floor plate through the buffer positioning component 25, and its top abuts against the cabin cover through the uninflated corrugated air tube 26. This allows the drone 21 to be held in a buffer space composed of upper and lower flexible components during travel, effectively isolating the rigid impact and vibration transmitted to the drone 21 body from road bumps, and improving the transportation safety and long-term reliability of the drone charging component 2.

[0049] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A mobile DC charging station for electric vehicles, characterized in that, include: The unmanned vehicle charging component (1) includes an unmanned vehicle (11) and a first charging unit, wherein the first charging unit is disposed inside the unmanned vehicle (11); The drone charging component (2) includes a drone (21) and a second charging unit. The second charging unit is located on the drone (21). The drone (21) is located inside the unmanned vehicle (11). The drone (21) is capable of carrying the second charging unit out of the unmanned vehicle (11). The second charging unit includes a second power battery (22), a second cable winch (23), a second charging gun (24), and a second cable. The second power battery (22) and the second cable winch (23) are connected to the lower part of the drone (21). One end of the second cable is electrically connected to the second power battery (22), and the other end of the second cable is wound around the second cable winch (23) and then electrically connected to the second charging gun (24). The drone charging assembly (2) also includes four sets of buffer positioning assemblies (25) located at the four corners of the bottom of the second power battery (22). Each set of buffer positioning assemblies (25) includes a positioning unit (251), which is used to buffer the impact force when the drone (21) lands. The buffer positioning component (25) further includes a buffer unit (252) for positioning the drone charging component (2) on the upper part of the vehicle shell; The positioning unit (251) includes a suction cup (2511) and a bellows (2512). One end of the bellows (2512) is connected to the suction cup (2511), and the other end of the bellows (2512) is connected to the buffer unit (252). The buffer unit (252) includes a cylinder (2521), a piston (2522), a rod (2523), a spring (2524), and a retaining ring (2525). The cylinder (2521) is connected to the bottom of the second power battery (22). One end of the bellows (2512) away from the suction cup (2511) is connected to the bottom end of the cylinder (2521). The piston (2522) is slidably connected to the inner wall of the cylinder (2521). One end of the rod (2523) is connected to the piston (2522), and the other end of the rod (2523) passes downward through the bottom end of the cylinder (2521). The bellows (2512) extends into the suction cup (2511). The retaining ring (2525) is fitted onto the rod (2523). The spring (2524) is fitted onto the rod (2523), and the two ends of the spring (2524) abut against the opposite surfaces of the bellows (2512) and the retaining ring (2525). The rod (2523) is provided with an air passage. One end of the air passage is connected to the inner cavity of the cylinder (2521) below the piston (2522), and the other end of the air passage is connected to the inside of the suction cup (2511). The top of the cylinder (2521) is provided with an air hole. The drone charging assembly (2) also includes a corrugated air tube (26) and an air tube. The corrugated air tube (26) is vertically connected to the upper part of the drone (21). One end of the air tube is connected to the corrugated air tube (26), and the other end of the air tube is connected to the air hole. The corrugated air tube (26) is provided with reflective strips. The unmanned vehicle (11) has a cabin on its upper part, which is used to accommodate the drone (21). The top of the cabin has an openable hatch. When the drone (21) is parked in the cabin, the top of the corrugated air pipe (26) abuts against the lower surface of the hatch.

2. The mobile electric vehicle DC charging station according to claim 1, characterized in that, The first charging unit includes a first power battery (12), a first cable winch (13), a first charging gun (14), and a first cable. The first power battery (12) and the first cable winch (13) are connected inside the unmanned vehicle (11). One end of the first cable is electrically connected to the first power battery (12), and the other end of the first cable is electrically connected to the first charging gun (14) after being wound around the first cable winch (13).

3. The mobile electric vehicle DC charging station according to claim 1, characterized in that, A rubber block is connected to one end of the rod (2523) away from the piston (2522), and the bottom surface of the rubber block is at the same level as the bottom periphery of the suction cup (2511).

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