A method and device for controlling temperature in a fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin

Abstract

The application discloses a fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control method and device, and belongs to the technical field of unmanned aerial vehicle environment control. The method comprises the following steps: step S1, arranging temperature sensors at air-cooled hydrogen fuel cell air inlets of a power cabin section and other cabin sections, collecting and processing data collected by the temperature sensors through a controller; step S2, setting power cabin section temperature threshold values and other cabin section temperature threshold values; and step S3, judging whether to execute temperature control according to a current cabin section temperature state by the controller. The application can not only provide suitable cabin temperature for the power cabin section, but also can supply air and heat for the other cabin sections, greatly improves the low-temperature adaptability of the unmanned aerial vehicle, and has good applicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicle environmental control, and in particular to a fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control method and device. BACKGROUND

[0002] There are mainly two schemes for the current fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control: one is to heat other equipment in the cabin by introducing hot air from the fuel cell exhaust fan; the other is to control the air volume by changing the air inlet or exhaust port area, thereby controlling the cabin temperature. The problem of the former is that the temperature control system first needs to maintain the working temperature of the fuel cell itself. In the case of low ambient temperature and low power of the battery itself, the required heat dissipation air volume of the fuel cell is small, which cannot meet the demand of air supply for heating other cabin sections. The latter is mainly for temperature control of the single cabin section where the fuel cell is located, and cannot meet the temperature control requirements of other equipment cabins.

[0003] Chinese patent application document with publication number CN112768725A and publication date of May 7, 2021 discloses a fuel cell unmanned aerial vehicle and a method and device for hydrogen power equipment temperature control. The device includes a hydrogen fuel cell using air cooling, an air filter device, an electronic control unit, a cold and hot air mixing chamber, an air inlet fan, a plurality of temperature sensors, a hydrogen storage system, a hot air circulation main pipeline, an equipment heating branch, a condensate water collection device and a three-way valve with flow control function.

[0004] The fuel cell unmanned aerial vehicle and the method and device for hydrogen power equipment temperature control disclosed in the patent application document can effectively utilize the heat generated by the proton exchange membrane hydrogen fuel cell when generating electric power, which is of great significance for widening the application scenarios of unmanned aerial vehicles or other equipment using air-cooled fuel cells as power. However, it can only provide suitable cabin temperature for the power cabin section, and it is difficult to achieve for other cabin sections, and the applicability is poor. SUMMARY

[0005] In order to overcome the defects of the prior art, the present application provides a fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control method and device. The present application not only can provide suitable cabin temperature for the power cabin section, but also can provide air heating for other cabin sections, greatly improving the low temperature adaptability of the unmanned aerial vehicle, and having good applicability.

[0006] The present application is realized by the following technical solutions:

[0007] A fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control method, characterized in that it comprises the following steps:

[0008] Step S1, temperature sensors are arranged at the air inlet of the air-cooled hydrogen fuel cell in the power cabin section and other cabin sections, and the data collected by the temperature sensors are collected and processed by the controller;

[0009] Step S2, set the power cabin temperature threshold and other cabin temperature threshold;

[0010] Step S3, the controller determines whether to execute temperature control according to the current cabin temperature state.

[0011] In the step S1, the sampling frequency of the temperature sensor is 10Hz.

[0012] In the step S2, the power cabin temperature threshold is 30℃, and the other cabin temperature threshold is 0℃.

[0013] The step S3 specifically refers to:

[0014] When the power cabin is higher than the power cabin temperature threshold, and the other cabin temperature is higher than the other cabin temperature threshold, the temperature control is not executed;

[0015] When the power cabin is higher than the power cabin temperature threshold, and the other cabin temperature is lower than the other cabin temperature threshold, the other cabin temperature control is executed;

[0016] When the power cabin is lower than the power cabin temperature threshold, and the other cabin is lower than the other cabin temperature threshold, first close the exhaust port flow area through the integrated exhaust device, and then increase the fan speed in the air induction pipeline when the power cabin temperature rises above the power cabin temperature threshold;

[0017] When the power cabin temperature is lower than the power cabin temperature threshold, and the other cabin temperature is higher than the other cabin temperature threshold, the exhaust port flow area is closed through the integrated exhaust device until the power cabin temperature rises above the power cabin temperature threshold, and the fan in the air induction pipeline is in a stopped state.

[0018] The execution of the other cabin temperature control refers to increasing the fan speed in the air induction pipeline to increase the air induction amount and raise the temperature of the other cabin.

[0019] A fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control device, comprising a controller and an air-cooled hydrogen fuel cell installed in the power cabin section, an air induction port and an exhaust port are provided on the power cabin section, an exhaust fan is provided at the air-cooled hydrogen fuel cell, characterized in that: an integrated exhaust device for adjusting the exhaust port flow area is provided at the exhaust port, an air induction pipeline for connecting other cabin sections is provided on the power cabin section, a fan is installed in the air induction pipeline, temperature sensors are provided in the power cabin section and other cabin sections, and the temperature sensors and the integrated exhaust device are electrically connected with the controller.

[0020] The integrated exhaust device comprises a first sliding rail, a first sliding block, an actuating motor, a movable plate, a first connecting rod, a second connecting rod, a second sliding block and a second sliding rail, one end of the blade is connected with the first sliding block perpendicularly, the other end of the blade is connected with the second sliding block perpendicularly, the first sliding block is connected with the first sliding rail in sliding mode, the second sliding block is connected with the second sliding rail in sliding mode, the motor shaft of the actuating motor is connected with the movable plate perpendicularly, the first sliding block is connected with the movable plate through the first connecting rod, and the second sliding block is connected with the movable plate through the second connecting rod.

[0021] The actuating motor drives the movable plate to move linearly and reciprocally.

[0022] The first sliding rail and the second sliding rail are parallel to each other, the first sliding rail is located on one side of the exhaust port, and the second sliding rail is located on the other side of the exhaust port.

[0023] The blade is a plurality of blades, the plurality of blades are arranged in parallel between the first sliding block and the second sliding block, and the spacing between any two adjacent blades is the same.

[0024] The exhaust port is a plurality of exhaust ports, the blade is located directly above the exhaust port, the area of the blade is greater than the area of the exhaust port, and the vertical distance between the blade and the exhaust port is 1-5mm.

[0025] The inlet of the induced draft pipeline corresponds to the outlet of the exhaust fan, and the cross-sectional area of the inlet of the induced draft pipeline is smaller than the cross-sectional area of the outlet of the exhaust fan.

[0026] The beneficial effects of the present application mainly include the following aspects:

[0027] 1、Compared with the prior art, the present application can not only provide suitable cabin temperature for the power cabin section, but also can supply air and heat for other cabin sections, greatly improving the low-temperature adaptability of the unmanned aerial vehicle and having good applicability.

[0028] 2、The present application realizes accurate and automatic adjustment of the temperature of each cabin of the unmanned aerial vehicle by monitoring and setting the temperature threshold of the multiple cabin sections in real time, intelligently judging and executing temperature control operation by the controller.

[0029] 3、The present application improves the working efficiency and reliability of the air-cooled hydrogen fuel cell through the exhaust fan, which is conducive to ensuring the stable operation of the airborne equipment within the safe temperature range.

[0030] 4、The present application dynamically adjusts the flow area of the exhaust port through the integrated exhaust device, and realizes the coordinated heat dissipation of the multiple cabin rooms in combination with the induced draft pipeline and the fan, relies on the feedback of the temperature sensor and the closed-loop regulation and control of the controller, effectively improves the temperature uniformity and heat management precision in the cabin of the unmanned aerial vehicle, ensures the efficient and stable operation of the air-cooled hydrogen fuel cell, and is conducive to enhancing the overall reliability.

[0031] 5、The integrated exhaust device comprises a first sliding rail, a first sliding block, a driving motor, a movable plate, a first connecting rod, a second connecting rod, a second sliding block and a second sliding rail, one end of the blade is connected with the first sliding block perpendicularly, the other end of the blade is connected with the second sliding block perpendicularly, the first sliding block is connected with the first sliding rail in sliding mode, the second sliding block is connected with the second sliding rail in sliding mode, the motor shaft of the driving motor is connected with the movable plate perpendicularly, the first sliding block is connected with the movable plate through the first connecting rod, the second sliding block is connected with the movable plate through the second connecting rod, the movable plate drives the connecting rod to move through the driving of the driving motor, and then the sliding block slides on the sliding rail, the blade dynamic adjustment of the exhaust port flow area is realized, the overall structure is compact, the transmission is reliable, and the control precision and response speed of the airflow and heat management in the unmanned aerial vehicle cabin are significantly improved.

[0032] 6、The present application can not only meet the temperature control requirements of the air-cooled hydrogen fuel cell itself under low ambient temperature, but also provide heat generated by the air-cooled hydrogen fuel cell to other cabin sections through the air guide pipeline, greatly improving the low-temperature adaptability of the unmanned aerial vehicle.

[0033] 7、The present application has a plurality of exhaust ports, the blade is located directly above the exhaust port, the area of the blade is greater than that of the exhaust port, and the vertical distance between the blade and the exhaust port is 1-5 mm, so that a small amount of air can still be discharged after the blade fully blocks the exhaust port, the safety is improved, and the pressure in the cabin is prevented from being too large. BRIEF DESCRIPTION OF DRAWINGS

[0034] The present application will be further specifically described below in combination with the drawings of the specification and the specific embodiments:

[0035] Figure 1 It is a structural schematic view of the temperature control device of the present application;

[0036] Figure 2 It is a structural schematic view of the integrated exhaust device of the present application;

[0037] Marked in the figure: 1, power cabin section, 2, air-cooled hydrogen fuel cell, 3, other cabin section, 4, temperature sensor, 5, controller, 6, integrated exhaust device, 7, exhaust port, 8, air guide pipeline, 9, fan, 10, air outlet, 11, exhaust fan, 12, first sliding rail, 13, first sliding block, 14, driving motor, 15, movable plate, 16, first connecting rod, 17, second connecting rod, 18, blade, 19, second sliding block, 20, second sliding rail. DETAILED DESCRIPTION

[0038] Example 1

[0039] Referring to Figure 1 A fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control method comprises the following steps:

[0040] Step S1, arranging temperature sensors 4 at the air inlet of the air-cooled hydrogen fuel cell 2 of the power cabin section 1 and other cabin sections 3, collecting and processing the data collected by the temperature sensors 4 through the controller 5;

[0041] Step S2, setting the temperature threshold of the power cabin section 1 and the temperature threshold of the other cabin sections 3;

[0042] Step S3, the controller 5 judges whether to execute temperature control according to the current cabin temperature state.

[0043] The embodiment is the most basic implementation, which can not only provide suitable cabin temperature for the power cabin section 1, but also can provide air heating for the other cabin sections 3, greatly improving the low-temperature adaptability of the unmanned aerial vehicle and having good applicability.

[0044] Embodiment 2

[0045] Referring to Figure 1 A fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control method, comprising the following steps:

[0046] Step S1, arranging temperature sensors 4 at the air inlet of the air-cooled hydrogen fuel cell 2 of the power cabin section 1 and other cabin sections 3, collecting and processing the data collected by the temperature sensors 4 through the controller 5;

[0047] Step S2, setting the temperature threshold of the power cabin section 1 and the temperature threshold of the other cabin sections 3;

[0048] Step S3, the controller 5 judges whether to execute temperature control according to the current cabin temperature state.

[0049] Preferably, in the step S1, the sampling frequency of the temperature sensor 4 is 10 Hz.

[0050] In the step S2, the temperature threshold of the power cabin section 1 is 30℃, and the temperature threshold of the other cabin sections 3 is 0℃.

[0051] The embodiment is a preferred implementation, which realizes the precise and automatic adjustment of the temperature of each cabin of the unmanned aerial vehicle by real-time monitoring and setting the temperature threshold of multiple cabin sections, and intelligently judging and executing the temperature control operation by the controller 5.

[0052] Embodiment 3

[0053] Referring to Figure 1 A fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control method, comprising the following steps:

[0054] Step S1, arranging temperature sensors 4 at the air inlet of the air-cooled hydrogen fuel cell 2 of the power cabin section 1 and other cabin sections 3, collecting and processing the data collected by the temperature sensors 4 through the controller 5;

[0055] Step S2, set the power cabin section 1 temperature threshold and other cabin section 3 temperature threshold;

[0056] Step S3, the controller 5 determines whether to perform temperature control according to the current cabin temperature state.

[0057] In the step S1, the sampling frequency of the temperature sensor 4 is 10Hz.

[0058] In the step S2, the power cabin section 1 temperature threshold is 30℃, and the other cabin section 3 temperature threshold is 0℃.

[0059] The step S3 specifically refers to:

[0060] When the power cabin section 1 is higher than the power cabin section 1 temperature threshold, and the other cabin section 3 temperature is higher than the other cabin section 3 temperature threshold, no temperature control is performed;

[0061] When the power cabin section 1 is higher than the power cabin section 1 temperature threshold, and the other cabin section 3 is lower than the other cabin section 3 temperature threshold, the other cabin section 3 temperature control is performed;

[0062] When the power cabin section 1 is lower than the power cabin section 1 temperature threshold, and the other cabin section 3 is lower than the other cabin section 3 temperature threshold, first close the exhaust port 7 flow area of the integrated exhaust device 6, and then increase the fan 9 speed in the induced draft pipe 8 when the power cabin section 1 temperature rises above the power cabin section 1 temperature threshold;

[0063] When the power cabin section 1 temperature is lower than the power cabin section 1 temperature threshold, and the other cabin section 3 temperature is higher than the other cabin section 3 temperature threshold, the exhaust port 7 flow area of the integrated exhaust device 6 is closed until the power cabin section 1 temperature rises above the power cabin section 1 temperature threshold, and the fan 9 in the induced draft pipe 8 is in a stopped state.

[0064] The other cabin section 3 temperature control refers to increasing the fan 9 speed in the induced draft pipe 8 to increase the air induction amount and raise the other cabin section 3 temperature.

[0065] This embodiment is another preferred embodiment, which improves the working efficiency and reliability of the air-cooled hydrogen fuel cell 2 through the exhaust fan 11, and is conducive to ensuring the stable operation of the airborne equipment within the safe temperature range.

[0066] Embodiment 4

[0067] Referring to Figure 1The fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control device comprises a controller 5 and an air-cooled hydrogen fuel cell 2 installed in a power cabin section 1, an air inlet 10 and an exhaust port 7 are arranged on the power cabin section 1, an exhaust fan 11 is arranged at the air-cooled hydrogen fuel cell 2, an integrated exhaust device 6 for adjusting the flow area of the exhaust port 7 is arranged at the exhaust port 7, an air duct 8 for connecting other cabin sections 3 is arranged on the power cabin section 1, a fan 9 is installed in the air duct 8, temperature sensors 4 are arranged in the power cabin section 1 and the other cabin sections 3, and the temperature sensors 4 and the integrated exhaust device 6 are electrically connected with the controller 5.

[0068] In this embodiment, the flow area of the exhaust port 7 is dynamically adjusted by the integrated exhaust device 6, the multi-cabin coordinated heat dissipation is realized by the air duct 8 and the fan 9, the temperature sensor 4 feedback and the controller 5 closed-loop control are relied on, the temperature uniformity and the heat management precision of the unmanned aerial vehicle cabin are effectively improved, the efficient and stable operation of the air-cooled hydrogen fuel cell 2 is ensured, and the overall reliability is enhanced.

[0069] Embodiment 5

[0070] Referring to Figure 1 and Figure 2 The fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control device comprises a controller 5 and an air-cooled hydrogen fuel cell 2 installed in a power cabin section 1, an air inlet 10 and an exhaust port 7 are arranged on the power cabin section 1, an exhaust fan 11 is arranged at the air-cooled hydrogen fuel cell 2, an integrated exhaust device 6 for adjusting the flow area of the exhaust port 7 is arranged at the exhaust port 7, an air duct 8 for connecting other cabin sections 3 is arranged on the power cabin section 1, a fan 9 is installed in the air duct 8, temperature sensors 4 are arranged in the power cabin section 1 and the other cabin sections 3, and the temperature sensors 4 and the integrated exhaust device 6 are electrically connected with the controller 5.

[0071] Preferably, the integrated exhaust device 6 comprises a first sliding rail 12, a first sliding block 13, an actuating motor 14, a movable plate 15, a first connecting rod 16, a second connecting rod 17, a second sliding block 19 and a second sliding rail 20, one end of a blade 18 is connected with the first sliding block 13 perpendicularly, the other end of the blade 18 is connected with the second sliding block 19 perpendicularly, the first sliding block 13 is connected with the first sliding rail 12 in sliding mode, the second sliding block 19 is connected with the second sliding rail 20 in sliding mode, the motor shaft of the actuating motor 14 is connected with the movable plate 15 perpendicularly, the first sliding block 13 is connected with the movable plate 15 through the first connecting rod 16, and the second sliding block 19 is connected with the movable plate 15 through the second connecting rod 17.

[0072] The actuating motor 14 drives the movable plate 15 to move linearly and reciprocally.

[0073] The first slide rail 12 and the second slide rail 20 are parallel to each other, the first slide rail 12 is located on one side of the exhaust port 7, and the second slide rail 20 is located on the other side of the exhaust port 7.

[0074] The plurality of blades 18 are arranged parallel to each other between the first sliding block 13 and the second sliding block 19, and the spacing between any two adjacent blades 18 is the same.

[0075] The plurality of exhaust ports 7 are arranged, the blades 18 are located directly above the exhaust ports 7, the area of the blades 18 is greater than the area of the exhaust ports 7, and the vertical distance between the blades 18 and the exhaust ports 7 is 1 mm.

[0076] In another preferred embodiment, the integrated exhaust device 6 includes a first slide rail 12, a first sliding block 13, an actuating motor 14, a movable plate 15, a first connecting rod 16, a second connecting rod 17, a second sliding block 19, and a second slide rail 20. One end of the blade 18 is connected perpendicularly to the first sliding block 13, the other end of the blade 18 is connected perpendicularly to the second sliding block 19, the first sliding block 13 is connected slidingly to the first slide rail 12, the second sliding block 19 is connected slidingly to the second slide rail 20, the motor shaft of the actuating motor 14 is connected perpendicularly to the movable plate 15, the first sliding block 13 is connected to the movable plate 15 through the first connecting rod 16, the second sliding block 19 is connected to the movable plate 15 through the second connecting rod 17, the movable plate 15 is driven to move the connecting rods by the actuating motor 14, and then the sliding blocks are driven to slide on the slide rails, thereby realizing dynamic adjustment of the flow area of the exhaust port 7 by the blade 18. The overall structure is compact, the transmission is reliable, and the control precision and response speed of the airflow and thermal management in the unmanned aerial vehicle cabin are significantly improved.

[0077] Embodiment 6

[0078] Referring to Figure 1 and Figure 2 An air-cooled hydrogen fuel cell unmanned aerial vehicle cabin temperature control device includes a controller 5 and an air-cooled hydrogen fuel cell 2 installed in a power cabin section 1. The power cabin section 1 is provided with an air inlet 10 and an exhaust port 7. The air-cooled hydrogen fuel cell 2 is provided with an exhaust fan 11. The exhaust port 7 is provided with an integrated exhaust device 6 for adjusting the flow area of the exhaust port 7. The power cabin section 1 is provided with an air inlet pipeline 8 for communicating with other cabin sections 3. The air inlet pipeline 8 is provided with a fan 9. The power cabin section 1 and the other cabin sections 3 are both provided with temperature sensors 4. The temperature sensors 4 and the integrated exhaust device 6 are electrically connected to the controller 5.

[0079] The integrated exhaust device 6 comprises a first sliding rail 12, a first sliding block 13, an actuating motor 14, a movable plate 15, a first connecting rod 16, a second connecting rod 17, a second sliding block 19 and a second sliding rail 20, one end of the blade 18 is connected with the first sliding block 13 perpendicularly, the other end of the blade 18 is connected with the second sliding block 19 perpendicularly, the first sliding block 13 is connected with the first sliding rail 12 slidingly, the second sliding block 19 is connected with the second sliding rail slidingly, the motor shaft of the actuating motor 14 is connected with the movable plate 15 perpendicularly, the first sliding block 13 is connected with the movable plate 15 through the first connecting rod 16, and the second sliding block 19 is connected with the movable plate 15 through the second connecting rod 17.

[0080] The actuating motor 14 drives the movable plate 15 to make linear reciprocating motion.

[0081] The first sliding rail 12 and the second sliding rail 20 are parallel to each other, the first sliding rail 12 is located on one side of the exhaust port 7, and the second sliding rail 20 is located on the other side of the exhaust port 7.

[0082] Further preferably, the blade 18 is a plurality of, the plurality of blades 18 are arranged between the first sliding block 13 and the second sliding block 19 perpendicularly, and the spacing between any two adjacent blades 18 is the same.

[0083] The exhaust port 7 is a plurality of, the blade 18 is located directly above the exhaust port 7, the area of the blade 18 is greater than the area of the exhaust port 7, and the vertical distance between the blade 18 and the exhaust port 7 is 5mm.

[0084] The inlet of the air duct 8 corresponds to the outlet of the exhaust fan 11, and the cross-sectional area of the inlet of the air duct 8 is smaller than the cross-sectional area of the outlet of the exhaust fan 11.

[0085] The embodiment is the best mode of the present application, which can not only meet the temperature control requirements of the air-cooled hydrogen fuel cell 2 itself under the condition of low ambient temperature, but also provide the heat generated by the air-cooled hydrogen fuel cell 2 to other cabin sections 3 through the air duct 8, thereby greatly improving the low-temperature adaptability of the unmanned aerial vehicle.

[0086] The basic principle of the present application is as follows:

[0087] The heat dissipation of the air-cooled hydrogen fuel cell 2 in the power cabin section 1 is divided into two forms: one is the convective heat exchange outward through the cabin wall, and the other is the direct exchange of hot air in the cabin with the outside cold air. Since the cabin is usually made of carbon fiber composite material, the thermal conductivity coefficient is low, the thermal resistance is large, the heat dissipation through convection is small, and the heat dissipation through direct exchange with the outside air is large. Therefore, as long as the exhaust air volume of the cabin can be controlled, the temperature control of the power cabin section 1 can be realized, so that the air-cooled hydrogen fuel cell 2 can be normally cooled by air and provide exhaust air flow.

[0088] The calculation and output frequency of the controller 5 is 1 / 100 of the sampling frequency, that is, 10s actuation once; when the power cabin section 1 is lower than the power cabin section 1 temperature threshold, and the other cabin section 3 is lower than the other cabin section 3 temperature threshold, the actuating motor 14 of the integrated exhaust device 6 is first controlled by the controller 5 to close the exhaust port 7 flow area, thereby reducing the exhaust amount, after which the cabin pressure and temperature will rise, and the air induction amount of the air induction port 10 will also be reduced simultaneously, at this time, the cooling air of the air-cooled hydrogen fuel cell 2 mainly comes from the cabin air, and the air flowing through the air-cooled hydrogen fuel cell 2 will be further heated, so that the cabin air temperature is further increased, and after the power cabin section 1 temperature rises to exceed the power cabin section 1 temperature threshold, the fan 9 rotating speed in the air induction pipeline 8 is increased, so as to increase the air induction amount, and the other cabin section 3 is heated by air supply, so that the temperature of the other cabin section 3 is increased.

[0089] The controller 5 collects and processes the data collected by the temperature sensor 4, the sampling frequency of the temperature sensor 4 is 10Hz, and the average of the 100 data points before the current sampling point is taken as the judgment temperature of the temperature sensor 4, if there are multiple other cabin sections 3, the other cabin section 3 with the lowest temperature is taken as the judgment temperature of the other cabin section 3.

Claims

1. A method for controlling the temperature in a fixed-wing air-cooled fuel cell drone cabin, characterized in that, It comprises the following steps: Step S1, arranging temperature sensors (4) at the air inlet of the air-cooled hydrogen fuel cell (2) in the power cabin section (1) and other cabin sections (3), collecting and processing the data collected by the temperature sensors (4) through the controller (5); Step S2, setting the temperature threshold of the power cabin section (1) and the temperature threshold of the other cabin sections (3); Step S3, the controller (5) judges whether to execute temperature control according to the current cabin temperature state; The step S3 specifically refers to: When the power cabin section (1) is higher than the temperature threshold of the power cabin section (1), and the temperature of the other cabin sections (3) is higher than the temperature threshold of the other cabin sections (3), no temperature control is executed; When the power cabin section (1) is higher than the temperature threshold of the power cabin section (1), and the other cabin sections (3) are lower than the temperature threshold of the other cabin sections (3), the temperature control of the other cabin sections (3) is executed; When the power cabin section (1) is lower than the temperature threshold of the power cabin section (1), and the other cabin sections (3) are lower than the temperature threshold of the other cabin sections (3), first close the flow area of the exhaust port (7) through the integrated exhaust device (6), and then increase the fan (9) speed in the induced draft piping (8) when the temperature of the power cabin section (1) rises above the temperature threshold of the power cabin section (1); When the temperature of the power cabin section (1) is lower than the temperature threshold of the power cabin section (1), and the temperature of the other cabin sections (3) is higher than the temperature threshold of the other cabin sections (3), close the flow area of the exhaust port (7) through the integrated exhaust device (6) until the temperature of the power cabin section (1) rises above the temperature threshold of the power cabin section (1), and the fan (9) in the induced draft piping (8) is in a stopped state; The execution of the temperature control of the other cabin sections (3) refers to increasing the fan (9) speed in the induced draft piping (8) to increase the induced air volume and raise the temperature of the other cabin sections (3).

2. The method of claim 1, wherein the method further comprises: In the step S1, the sampling frequency of the temperature sensor (4) is 10 Hz.

3. The method of claim 1, wherein the method further comprises: In the step S2, the temperature threshold of the power cabin section (1) is 30℃, and the temperature threshold of the other cabin sections (3) is 0℃.

4. A fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control device, comprising a controller (5) and an air-cooled hydrogen fuel cell (2) installed in a power cabin section (1), the power cabin section (1) is provided with an air inlet (10) and an exhaust port (7), and the air-cooled hydrogen fuel cell (2) is provided with an exhaust fan (11), characterized in that: For realizing the fixed-wing air-cooled fuel cell unmanned aerial vehicle cabin temperature control method of claim 1, the exhaust port (7) is provided with an integrated exhaust device (6) for adjusting the flow area of the exhaust port (7), the power cabin section (1) is provided with an induced draft piping (8) for communicating with the other cabin sections (3), the induced draft piping (8) is provided with a fan (9), and the power cabin section (1) and the other cabin sections (3) are provided with temperature sensors (4), and the temperature sensors (4) and the integrated exhaust device (6) are electrically connected with the controller (5).

5. The fixed-wing air-cooled fuel cell UAV cabin temperature control device according to claim 4, characterized in that: The integrated exhaust device (6) comprises a first sliding rail (12), a first sliding block (13), an actuating motor (14), a movable plate (15), a first connecting rod (16), a second connecting rod (17), a blade (18), a second sliding block (19) and a second sliding rail (20), one end of the blade (18) is connected with the first sliding block (13) perpendicularly, the other end of the blade (18) is connected with the second sliding block (19) perpendicularly, the first sliding block (13) is connected with the first sliding rail (12) slidably, the second sliding block (19) is connected with the second sliding rail (20) slidably, the motor shaft of the actuating motor (14) is connected with the movable plate (15) perpendicularly, the first sliding block (13) is connected with the movable plate (15) through the first connecting rod (16), and the second sliding block (19) is connected with the movable plate (15) through the second connecting rod (17).

6. The fixed-wing air-cooled fuel cell UAV cabin temperature control device according to claim 5, characterized in that: The actuating motor (14) drives the movable plate (15) to make linear reciprocating motion.

7. The fixed-wing air-cooled fuel cell UAV cabin temperature control device according to claim 5, characterized in that: The first sliding rail (12) and the second sliding rail (20) are parallel to each other, the first sliding rail (12) is located on one side of the exhaust port (7), and the second sliding rail (20) is located on the other side of the exhaust port (7).

8. The fixed-wing air-cooled fuel cell UAV cabin temperature control device of claim 5, wherein: The blade (18) is a plurality of blades (18) arranged parallel to each other between the first sliding block (13) and the second sliding block (19), and the spacing between any two adjacent blades (18) is the same.

9. The fixed-wing air-cooled fuel cell UAV cabin temperature control device of claim 5, wherein: The exhaust port (7) is a plurality of exhaust ports (7), the blade (18) is located directly above the exhaust port (7), the area of the blade (18) is greater than the area of the exhaust port (7), and the vertical distance between the blade (18) and the exhaust port (7) is 1-5mm.

10. The fixed-wing air-cooled fuel cell UAV cabin temperature control device of claim 5, wherein: The inlet of the induced draft pipeline (8) corresponds to the outlet of the exhaust fan (11), and the cross-sectional area of the inlet of the induced draft pipeline (8) is smaller than the cross-sectional area of the outlet of the exhaust fan (11).

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