Hydrogen fuel cell device, power supply system and unmanned aerial vehicle

Abstract

The invention discloses a hydrogen fuel cell device, a power supply system and an unmanned aerial vehicle, the hydrogen fuel cell device comprises a fixed support, a fuel cell membrane electrode bipolar plate, two end plate assemblies and a heat dissipation assembly, the fuel cell membrane electrode bipolar plate is arranged in the fixed support, the heat dissipation assembly is arranged on the outer side surface of the fixed support, and the two end plate assemblies are arranged in the fixed support. The end plate assemblies are symmetrically arranged on the left side and the right side of the fixing support, each end plate assembly comprises a conductive plate, an insulating plate and an outer end plate which are sequentially stacked from inside to outside, an air inlet and a hydrogen inlet are formed in the upper portion of any outer end plate, and an air outlet and a hydrogen outlet are formed in the lower portion of any outer end plate. The problems of short endurance mileage and long charging time of a lithium battery adopted by the unmanned aerial vehicle can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to a hydrogen fuel cell device, a power supply system and an unmanned aerial vehicle. Background Art

[0002] An unmanned aerial vehicle (UAV) is an unmanned aerial vehicle that is controlled by a radio remote control device and a self-contained program control device.

[0003] Currently, drones on the market mainly use lithium batteries as their power source. Due to the limited energy density of lithium batteries, they generally have problems such as short range and long charging time, which makes it difficult to meet the needs of long-term and long-distance flight missions. At the same time, problems with lithium batteries in waste disposal and environmental pressure are becoming increasingly prominent. Summary of the invention

[0004] The first purpose of the present invention is to overcome the shortcomings of the prior art and provide a hydrogen fuel cell device that can effectively solve the problems of short cruising range and long charging time of lithium batteries used in drones.

[0005] A second object of the present invention is to provide a power supply system.

[0006] A third object of the present invention is to provide a drone.

[0007] The first object of the present invention is achieved by the following technical solutions:

[0008] A hydrogen fuel cell device comprises a fixed bracket, a fuel cell membrane electrode bipolar plate, an end plate assembly and a heat dissipation assembly, wherein the fuel cell membrane electrode bipolar plate is arranged inside the fixed bracket, and the heat dissipation assembly is arranged on the outer side of the fixed bracket. There are two end plate assemblies, which are symmetrically arranged on the left and right sides of the fixed bracket, and each end plate assembly comprises a conductive plate, an insulating plate and an outer end plate stacked in sequence from the inside to the outside, and an air inlet and a hydrogen inlet are respectively arranged on the upper part of any one of the outer end plates, and an air outlet and a hydrogen outlet are respectively arranged on the lower part thereof.

[0009] Furthermore, the fixing bracket is in a U-shaped structure and is composed of a fixing mainboard and limit plates symmetrically arranged at the upper and lower ends of the fixing mainboard, and the heat dissipation component is arranged on the outer side of the fixing mainboard.

[0010] Furthermore, the heat dissipation assembly is connected to the fixed mainboard via bolts.

[0011] Furthermore, the heat dissipation component includes two heat dissipation fans which are symmetrically arranged up and down.

[0012] Furthermore, the heat dissipation fan is made of stainless steel.

[0013] Furthermore, the fixing bracket and the outer end plate are both made of metal material.

[0014] Furthermore, the outer end plate and the insulating plate are connected by bolts.

[0015] Furthermore, the outer end plate is connected to the limiting plate of the fixed bracket by bolts.

[0016] The second object of the present invention is achieved by the following technical solutions:

[0017] A power supply system comprises the hydrogen fuel cell device described above.

[0018] The third object of the present invention is achieved by the following technical solutions:

[0019] A drone comprises the hydrogen fuel cell device described above.

[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0021] The present invention has a simple structure and a reasonable design. It adopts a hydrogen fuel cell instead of a lithium battery and adopts an electronic control or other load device. It is suitable for low-voltage and high-current occasions. It has the characteristics of high performance, high current, high power density, fast response, high stability, small size and light weight. It can effectively meet the needs of long-term and long-distance flight missions of UAVs, and does not require waste disposal, so the environmental pressure is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an exploded view of the present invention.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 3 It is the front view of the present invention.

[0025] Figure 4 It is a top view of the present invention.

[0026] Figure 5 It is a side view of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] like Figures 1 to 5 As shown, this embodiment provides a hydrogen fuel cell device, including a fixed bracket, a fuel cell membrane electrode bipolar plate 3, an end plate assembly and a heat dissipation assembly, the fuel cell membrane electrode bipolar plate 3 is arranged inside the fixed bracket, the outer side of the fixed bracket is provided with a heat dissipation assembly, there are two end plate assemblies, which are symmetrically arranged on the left and right sides of the fixed bracket, each end plate assembly includes a conductive plate 4, an insulating plate 5 and an outer end plate 6 stacked in sequence from the inside to the outside, wherein the outer end plate and the insulating plate are connected by bolts, and the upper part of any one of the outer end plates 6 is respectively provided with an air inlet 601 and a hydrogen inlet 602, and the lower part thereof is respectively provided with an air outlet 603 and a hydrogen outlet 604.

[0030] Specifically, the fixed bracket is integrally formed, and has an overall U-shaped structure, and is composed of a fixed mainboard 1 and limit plates 2 symmetrically arranged at the upper and lower ends of the fixed mainboard 1, the limit plates are connected to the outer end plates by bolts, and the heat dissipation component is arranged on the outer side of the fixed mainboard 1. Furthermore, the heat dissipation component is connected to the fixed mainboard by bolts.

[0031] Specifically, the heat dissipation component includes two heat dissipation fans 7 which are symmetrically arranged up and down.

[0032] The cooling fan is made of stainless steel, and the fixing bracket and the outer end plate are both made of metal.

[0033] The working principle of this embodiment is as follows:

[0034] Hydrogen fuel enters the gas diffusion layer inside the fuel cell membrane electrode bipolar plate from the hydrogen inlet, and air enters the gas diffusion layer from the air inlet. The two substances react through the positive and negative electrodes in the proton exchange membrane of the fuel cell membrane electrode bipolar plate to generate electricity. After the reaction is completed, the generated air is discharged from the air outlet, and the generated hydrogen is discharged from the hydrogen outlet, and then recycled.

[0035] Embodiment 2:

[0036] This embodiment provides a power supply system, including the hydrogen fuel cell device described in Example 2, which can use a 2000W series FDC power module with a DC voltage at the input end and a DC voltage output after internal conversion at the output end, for charging an external auxiliary lithium battery and for auxiliary power supply of other devices. Its hardware adopts DSP digital control, resonant soft switch, and three-level BUCK-BOOST technology; its software adopts closed-loop control and has multiple protection functions. When the external working environment is abnormal or the hardware itself fails, it can report specific faults and shut down. The power supply system uses an aluminum substrate attached to the air duct heat dissipation panel, and heat-conductive silicone grease is used for heat dissipation. Therefore, the power supply system has the characteristics of small size, high power density, excellent heat dissipation effect, wide input voltage range, and easy system integration.

[0037] Embodiment 3:

[0038] This embodiment provides a drone, comprising the hydrogen fuel cell device described in Embodiment 1.

[0039] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and invention concept of the present invention within the scope disclosed by the present invention, which shall fall within the protection scope of the present invention.

Claims

1. A hydrogen fuel cell device, characterized in that: It includes a fixed bracket, a fuel cell membrane electrode bipolar plate, an end plate assembly and a heat dissipation assembly. The fuel cell membrane electrode bipolar plate is arranged inside the fixed bracket, and the heat dissipation assembly is arranged on the outer side of the fixed bracket. There are two end plate assemblies, which are symmetrically arranged on the left and right sides of the fixed bracket. Each end plate assembly includes a conductive plate, an insulating plate and an outer end plate stacked in sequence from the inside to the outside, and an air inlet and a hydrogen inlet are respectively arranged on the upper part of any one of the outer end plates, and an air outlet and a hydrogen outlet are respectively arranged on the lower part.

2. The hydrogen fuel cell device according to claim 1, characterized in that: The fixing bracket is in a U-shaped structure and is composed of a fixing mainboard and limit plates symmetrically arranged at the upper and lower ends of the fixing mainboard. The heat dissipation component is arranged on the outer side of the fixing mainboard.

3. The hydrogen fuel cell device according to claim 2, characterized in that: The heat dissipation component is connected to the fixed mainboard via bolts.

4. The hydrogen fuel cell device according to claim 1, characterized in that: The heat dissipation component includes two heat dissipation fans which are symmetrically arranged up and down.

5. The hydrogen fuel cell device according to claim 4, characterized in that: The heat dissipation fan is made of stainless steel.

6. The hydrogen fuel cell device according to claim 1, characterized in that: The fixing bracket and the outer end plate are both made of metal material.

7. The hydrogen fuel cell device according to claim 1, characterized in that: The outer end plate is connected to the insulating plate by bolts.

8. The hydrogen fuel cell device according to claim 1, characterized in that: The outer end plate is connected to the limiting plate of the fixing bracket by bolts.

9. A power supply system, characterized in that: A hydrogen fuel cell device comprising any one of claims 1 to 8.

10. A drone, characterized in that: A hydrogen fuel cell device comprising any one of claims 1 to 8.

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