A hydrogen fuel cell nacelle for a drone

Abstract

The utility model discloses a hydrogen fuel cell pod for unmanned plane relates to unmanned plane manufacturing technical field, it includes: pod shell, hydrogen cylinder, battery base and battery main body, hydrogen cylinder, battery base and battery main body all are located in the pod shell, and hydrogen cylinder is clamped in the pod shell and is located one side in the pod shell inner chamber, through the lock catch structure and connects the upper casing and lower casing, when the hydrogen cylinder of pod shell inside is filled with gas and battery main body charges or the maintenance of pod shell inside is carried out, can through the connection of lock catch structure between further disconnecting the connection between upper casing and lower casing, and then can dismantle the upper casing, further can expose hydrogen cylinder, battery main body and pod inner chamber, thereby can be convenient for hydrogen cylinder fills with gas, charges to battery main body or the maintenance of pod shell inside, and then can conveniently fill hydrogen and replace lithium battery, thereby improve the endurance time of unmanned plane.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) manufacturing technology, and in particular to a hydrogen fuel cell pod for UAVs. Background Technology

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are intelligent aircraft systems that fly autonomously through pre-programmed procedures or are remotely controlled by operators. As an important development direction of modern aviation technology, UAVs, with their flexibility, low cost, and strong adaptability, are profoundly changing traditional aviation operations and demonstrating broad application prospects in military and civilian fields. From the perspective of flight principles, UAVs can be mainly divided into four types: fixed-wing UAVs, multi-rotor UAVs, helicopter UAVs, and compound-wing UAVs. Fixed-wing UAVs adopt an aerodynamic layout similar to traditional aircraft, relying on the lift generated by their wings to maintain flight. They have advantages such as long endurance, high flight speed, and large payload capacity, and are widely used in large-area aerial surveying and long-range reconnaissance scenarios. Multi-rotor UAVs achieve flight through differential control of multiple rotors, featuring vertical takeoff and landing, hovering, and high maneuverability, excelling in aerial photography and agricultural plant protection. Helicopter UAVs use a single rotor plus tail rotor design, combining vertical takeoff and landing with high-speed forward flight capabilities, giving them unique advantages in complex environments.

[0003] Existing compound-wing drones generally use lithium batteries as their primary power source, but this energy solution has significant limitations in practical applications. First, lithium batteries have relatively low energy density, a physical characteristic that fundamentally limits the drone's endurance. Existing solutions to extend endurance mainly focus on two aspects: replacing the battery pack with a higher capacity one, and increasing the number of batteries. However, both methods significantly increase the overall weight of the drone. According to aerodynamic principles, this weight increase has negative consequences, not only increasing flight energy consumption and reducing energy efficiency, but also affecting the drone's maneuverability and payload capacity. Second, the charging and discharging characteristics of lithium batteries also pose challenges to high-intensity drone operations. When the battery is depleted, the drone must interrupt its mission to recharge. Currently, mainstream lithium batteries typically require 1-2 hours to charge. While fast charging technology can shorten charging time, it accelerates battery aging and reduces battery life. This long charging time makes it difficult for drones to meet the needs of applications requiring high-frequency flights, such as emergency rescue and continuous inspection. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a hydrogen fuel cell pod for drones, which can conveniently refuel with hydrogen and replace lithium batteries, thereby improving the drone's flight time and avoiding large-scale replacement of parts in the event of a single component failure, thus reducing maintenance costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hydrogen fuel cell pod for unmanned aerial vehicles (UAVs), comprising a pod shell, a hydrogen cylinder, a battery base, and a battery body. The hydrogen cylinder, battery base, and battery body are all located within the pod shell. The hydrogen cylinder is sandwiched within the pod shell and located on one side of the pod shell's inner cavity. The battery base is fixedly connected to the pod shell, and the battery body is fixedly mounted on the battery base. The battery base and battery body are spaced apart from the hydrogen cylinder, and the hydrogen cylinder is in communication with the battery body. The pod shell comprises an upper shell and a lower shell, with the upper shell located on top of the lower shell. The upper shell and the lower shell are connected by a locking structure.

[0006] Preferably, the upper housing includes a first outer shell, a second outer shell, a third outer shell, a fourth outer shell, and a fifth outer shell that are detachably connected in sequence, and the first outer shell, the second outer shell, the third outer shell, the fourth outer shell, and the fifth outer shell are connected in sequence by bolts.

[0007] Preferably, the lower housing includes a sixth outer shell, a seventh outer shell, an eighth outer shell, a ninth outer shell, and a tenth outer shell that are detachably connected in sequence, and the sixth outer shell, the seventh outer shell, the eighth outer shell, the ninth outer shell, and the tenth outer shell are connected in sequence by bolts.

[0008] Preferably, the first outer shell and the sixth outer shell are provided with fixing forks on opposite sides, and one end of the hydrogen cylinder is clamped between the two fixing forks.

[0009] Preferably, the bottom of the seventh outer casing is provided with two inclined support feet.

[0010] Preferably, the second, third, seventh, and eighth outer shells are provided with arc-shaped protrusions on opposite sides, and the hydrogen cylinder is sandwiched between the protrusions.

[0011] Preferably, partitions are provided on opposite sides of the third and eighth outer shells, with the bottom of the partition on the third outer shell abutting against the top of the partition on the eighth outer shell.

[0012] Preferably, a heat dissipation vent is provided at the bottom of the pod shell, located at the connection between the ninth and tenth outer shells, and an exhaust fan is provided on the top of the heat dissipation vent on the battery base.

[0013] Preferably, a vent is provided at one end of the pod shell near the battery body, and the vent is located at the connection between the fifth and tenth outer shells.

[0014] Preferably, the top of both the second and fourth housings are provided with two connecting brackets spaced apart.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. This utility model connects the upper and lower shells through a locking structure. When refueling the hydrogen cylinder and charging the battery inside the pod shell, or when performing maintenance and repairs on the inside of the pod shell, the connection between the upper and lower shells can be further disconnected by breaking the connection between the locking structure. This allows the upper shell to be disassembled, exposing the hydrogen cylinder, battery, and pod cavity. This facilitates refueling the hydrogen cylinder, charging the battery, or performing maintenance and repairs on the inside of the pod shell, and also makes it convenient to add hydrogen and replace the lithium battery, thereby improving the drone's flight time.

[0016] 2. The upper and lower shells of the pod are both assembled from multiple different modules. When one of the modules of the pod shell is damaged, the damaged part can be replaced individually, thereby avoiding large-scale replacement of parts and reducing maintenance costs.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a 3D view of a hydrogen fuel cell pod for a drone.

[0019] Figure 2 This is an exploded view of a hydrogen fuel cell pod for a drone.

[0020] Figure 3 This is a perspective view of the upper casing of a hydrogen fuel cell pod for a drone.

[0021] Figure 4 This is a perspective view of the lower casing of a hydrogen fuel cell pod for an unmanned aerial vehicle (UAV).

[0022] Figure 5 A bottom view of the exhaust fan of a hydrogen fuel cell pod for a drone.

[0023] Legend: 1. Pod shell; 11. Upper shell; 111. First outer shell; 112. Second outer shell; 113. Third outer shell; 114. Fourth outer shell; 115. Fifth outer shell; 12. Lower shell; 121. Sixth outer shell; 122. Seventh outer shell; 123. Eighth outer shell; 124. Ninth outer shell; 125. Tenth outer shell; 13. Locking structure; 14. Fixing fork; 15. Support leg; 16. Protrusion; 17. Partition; 18. Heat dissipation vent; 19. Ventilation vent; 2. Hydrogen cylinder; 3. Battery base; 31. Exhaust fan; 4. Battery body; 5. Connecting bracket. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Reference Figures 1-5This utility model provides a hydrogen fuel cell pod for unmanned aerial vehicles (UAVs), comprising: a pod shell 1, a hydrogen cylinder 2, a battery base 3, and a battery body 4. The hydrogen cylinder 2, battery base 3, and battery body 4 are all located inside the pod shell 1. The hydrogen cylinder 2 is clamped inside the pod shell 1 and located on one side of the inner cavity of the pod shell 1. The battery base 3 is fixedly connected to the pod shell 1, and the battery body 4 is fixedly mounted on the battery base 3. The battery base 3 and battery body 4 are spaced apart from the hydrogen cylinder 2, and the hydrogen cylinder 2 is in communication with the battery body 4. The pod shell 1 includes an upper shell 11 and a lower shell 12. The upper shell 11 is located on top of the lower shell 12, and the upper shell 11 and the lower shell 12 are connected by a locking structure 13. The locking structure 13 is a butterfly buckle, which is existing technology and will not be described in detail here. By dividing the pod shell 1 into an upper shell 11 and a lower shell 12, it is convenient to disassemble and assemble the battery body 4 and the hydrogen cylinder 2 inside the pod shell 1.

[0029] Furthermore, the upper housing 11 includes a first outer shell 111, a second outer shell 112, a third outer shell 113, a fourth outer shell 114, and a fifth outer shell 115 that are detachably connected in sequence. The first outer shell 111, the second outer shell 112, the third outer shell 113, the fourth outer shell 114, and the fifth outer shell 115 are connected in sequence by bolts. By disassembling the upper housing 11 into the first outer shell 111, the second outer shell 112, the third outer shell 113, the fourth outer shell 114, and the fifth outer shell 115, when the upper housing 11 is bumped, the corresponding outer shell can be replaced, avoiding large-scale replacements and waste.

[0030] Furthermore, the lower housing 12 includes a sixth outer shell 121, a seventh outer shell 122, an eighth outer shell 123, a ninth outer shell 124, and a tenth outer shell 125 that are detachably connected in sequence. The sixth outer shell 121, the seventh outer shell 122, the eighth outer shell 123, the ninth outer shell 124, and the tenth outer shell 125 are connected in sequence by bolts. By disassembling the lower housing 12 into the sixth outer shell 121, the seventh outer shell 122, the eighth outer shell 123, the ninth outer shell 124, and the tenth outer shell 125, when the lower housing 12 is bumped, the corresponding outer shell can be replaced, avoiding large-scale replacement and waste.

[0031] Furthermore, the first outer shell 111 and the sixth outer shell 121 are each provided with a fixing fork 14 on opposite sides, and one end of the hydrogen cylinder 2 is clamped between the two fixing forks 14; by providing the fixing fork 14, the fixing fork 14 can fix the hydrogen cylinder 2 and prevent the hydrogen cylinder 2 from moving left and right along the inner cavity of the pod shell 1.

[0032] Furthermore, the bottom of the seventh outer shell 122 is provided with two inclined support feet 15; by providing support feet 15, the pod shell 1 can be placed on a flat surface.

[0033] Furthermore, the second outer shell 112, the third outer shell 113, the seventh outer shell 122 and the eighth outer shell 123 are all provided with arc-shaped protrusions 16 on opposite sides, and the hydrogen cylinder 2 is sandwiched between the protrusions 16; by providing the protrusions 16, the hydrogen cylinder 2 can be fixedly installed in the inner cavity of the pod shell 1 to prevent the hydrogen cylinder 2 from moving up and down.

[0034] Furthermore, partitions 17 are provided on opposite sides of the third outer shell 113 and the eighth outer shell 123, with the bottom of the partition 17 on the third outer shell 113 abutting against the top of the partition 17 on the eighth outer shell 123; by providing partitions 17, the inner cavity of the pod shell 1 can be separated, thereby enabling the battery body 4 to be separated from the hydrogen cylinder 2.

[0035] Furthermore, a heat dissipation vent 18 is provided at the bottom of the pod housing 1. The heat dissipation vent 18 is located at the connection between the ninth outer shell 124 and the tenth outer shell 125. An exhaust fan 31 is provided on the top of the heat dissipation vent 18. By providing the heat dissipation vent 18 and the exhaust fan 31, when the battery body 4 generates heat during operation, the exhaust fan 31 can drive the hot air around the battery body 4 to circulate and blow it out of the pod housing 1.

[0036] Furthermore, a vent 19 is provided at one end of the pod housing 1 near the battery body 4. The vent 19 is located at the connection between the fifth outer shell 115 and the tenth outer shell 125. By providing the vent 19, when the exhaust fan is working, the airflow outside the pod housing 1 can enter the inner cavity of the pod housing 1 through the vent 19.

[0037] Furthermore, two connecting brackets are spaced apart on the top of both the second outer shell 112 and the fourth outer shell 114; the pod shell 1 can be fixedly installed on the bottom of the drone through the connecting brackets.

[0038] The usage and working principle of this device are as follows: When installing the battery pod, the sixth outer shell 121, seventh outer shell 122, eighth outer shell 123, ninth outer shell 124, and tenth outer shell 125 of the lower housing 12 are fixedly installed using bolts. The hydrogen cylinder 2, battery base 3, and battery body 4 are installed on the lower housing 12. Then, the first outer shell 111, second outer shell 112, third outer shell 113, fourth outer shell 114, and fifth outer shell 115 of the upper housing 11 are fixedly installed using bolts. Finally, the upper housing 11 is placed on top of the lower housing 12, so that one end of the valve of the hydrogen cylinder 2 is clamped between two fixing forks 14, and the body of the hydrogen cylinder 2 is clamped between multiple protrusions 16. The hydrogen cylinder 2 and the battery body 4 are located in the two side cavities of the partition 17, which separates the working areas of the hydrogen cylinder 2 and the battery body 4. Finally, the upper housing 11 and the lower housing 12 are fixedly connected using the locking structure 13, which is a butterfly buckle. Finally, the battery pod is installed using the connecting bracket 5. The bottom of the drone allows the pod shell 1 to suspend below it. When the drone is parked on a flat surface, the support feet 15, like the drone's own feet, provide support. When it is necessary to refuel the hydrogen cylinder 2, charge the battery body 4, or perform maintenance and repairs on the inside of the pod shell 1, the connection between the upper shell 11 and the lower shell 12 can be further disconnected by breaking the connection between the locking structure 13. This allows the upper shell 11 to be removed, exposing the hydrogen cylinder 2, the battery body 4, and the inner cavity of the pod. This facilitates refueling the hydrogen cylinder 2, charging the battery body 4, or performing maintenance and repairs on the inside of the pod shell 1, as well as conveniently adding hydrogen and replacing the lithium battery, thereby improving the drone's flight time. Both the upper shell 11 and the lower shell 12 of the pod shell 1 are assembled from multiple different modules. When one module of the pod shell 1 is damaged, the damaged part can be replaced individually, thus avoiding large-scale component replacements and reducing maintenance costs.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A hydrogen fuel cell pod for unmanned aerial vehicles (UAVs), characterized in that, include: The pod shell (1), hydrogen cylinder (2), battery base (3) and battery body (4) are all located inside the pod shell (1). The hydrogen cylinder (2) is sandwiched inside the pod shell (1) and located on one side of the inner cavity of the pod shell (1). The battery base (3) is fixedly connected to the pod shell (1). The battery body (4) is fixedly installed on the battery base (3). The battery base (3) and the battery body (4) are arranged at intervals from the hydrogen cylinder (2). The hydrogen cylinder (2) and the battery body (4) are connected. The pod shell (1) includes an upper shell (11) and a lower shell (12), with the upper shell (11) located on top of the lower shell (12), and the upper shell (11) and the lower shell (12) connected by a locking structure (13).

2. The hydrogen fuel cell pod for unmanned aerial vehicles according to claim 1, characterized in that, The upper housing (11) includes a first outer shell (111), a second outer shell (112), a third outer shell (113), a fourth outer shell (114), and a fifth outer shell (115) that are detachably connected in sequence. The first outer shell (111), the second outer shell (112), the third outer shell (113), the fourth outer shell (114), and the fifth outer shell (115) are connected in sequence by bolts.

3. The hydrogen fuel cell pod for unmanned aerial vehicles according to claim 1, characterized in that, The lower housing (12) includes a sixth outer shell (121), a seventh outer shell (122), an eighth outer shell (123), a ninth outer shell (124), and a tenth outer shell (125) that are detachably connected in sequence. The sixth outer shell (121), the seventh outer shell (122), the eighth outer shell (123), the ninth outer shell (124), and the tenth outer shell (125) are connected in sequence by bolts.

4. A hydrogen fuel cell pod for unmanned aerial vehicles according to claim 2, characterized in that, The first outer shell (111) and the sixth outer shell (121) are each provided with a fixing fork (14) on opposite sides, and one end of the hydrogen cylinder (2) is clamped between the two fixing forks (14).

5. A hydrogen fuel cell pod for unmanned aerial vehicles according to claim 3, characterized in that, The bottom of the seventh outer shell (122) is provided with two inclined support feet (15).

6. A hydrogen fuel cell pod for unmanned aerial vehicles according to claim 2, characterized in that, The second outer shell (112), the third outer shell (113), the seventh outer shell (122) and the eighth outer shell (123) are provided with arc-shaped protrusions (16) on opposite sides, and the hydrogen cylinder (2) is sandwiched between multiple protrusions (16).

7. A hydrogen fuel cell pod for unmanned aerial vehicles according to claim 2, characterized in that, The third outer shell (113) and the eighth outer shell (123) are provided with partitions (17) on opposite sides, and the bottom of the partition (17) on the third outer shell (113) abuts against the top of the partition (17) on the eighth outer shell (123).

8. A hydrogen fuel cell pod for unmanned aerial vehicles according to claim 3, characterized in that, The bottom of the pod housing (1) is provided with a heat dissipation vent (18), which is located at the connection between the ninth outer shell (124) and the tenth outer shell (125). The battery base (3) is provided with an exhaust fan (31) on top of the heat dissipation vent (18).

9. A hydrogen fuel cell pod for unmanned aerial vehicles according to claim 3, characterized in that, The pod housing (1) has a vent (19) at one end near the battery body (4), and the vent (19) is located at the connection between the fifth outer shell (115) and the tenth outer shell (125).

10. A hydrogen fuel cell pod for unmanned aerial vehicles according to claim 2, characterized in that, The top of the second housing (112) and the fourth housing (114) are each provided with two connecting brackets (5) spaced apart.

Images