Non-airtight cabin ventilation system
By designing a non-airtight cabin ventilation system on the drone and using ram air inlets and controllers to regulate airflow, the problem of heat dissipation of non-airtight cabin equipment in the drone was solved, achieving efficient heat dissipation and reducing system complexity and maintenance workload.
Patent Information
- Application Number
- CN202422901976.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-26
AI Technical Summary
The heat dissipation requirements of airborne equipment in non-airtight cabins on drones have not been effectively addressed, leading to flight safety hazards. Traditional cooling components for air supply or cabin exhaust are not applicable to drones.
Design a non-airtight chamber ventilation system that utilizes a ram air inlet, regulating valve, one-way valve, air supply pipeline, return air pipeline, fan, and temperature sensor. The system regulates airflow through a controller to achieve effective heat dissipation, with few accessories and high reliability.
It effectively solved the heat dissipation problem of non-airtight electronic equipment, reduced system accessories and maintenance workload, improved system reliability and reduced compensatory losses.
Smart Images
Figure CN223639547U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the field of aircraft thermal management system, and particularly relates to a non-airtight cabin ventilation system. BACKGROUND
[0002] More and more airborne devices need to be cooled, and the cooling capacity is increasing with the increase of functions. The airborne devices on the unmanned aerial vehicle are arranged on the device rack in the non-airtight cabin for convenient disassembly and maintenance. The conventional aircraft uses the air supply of the refrigeration assembly or the cabin exhaust to ventilate and cool the device cabin, however, the unmanned aerial vehicle does not have the air supply of the refrigeration assembly or the cabin exhaust, so there is no stable air supply or exhaust for cabin ventilation and cooling, but the cooling of a large number of concentrated arrangement of airborne devices has an adverse effect on flight safety. The conventional refrigeration assembly air supply is used to ventilate the electronic device cabin in the cabin, which increases the compensation loss of the unmanned aerial vehicle.
[0003] Therefore, it is desirable to have a technical solution to overcome or at least alleviate at least one of the above-mentioned deficiencies of the prior art. CONTENT OF THE UTILITY MODEL
[0004] The purpose of the present application is to provide a non-airtight cabin ventilation system to solve at least one problem existing in the prior art.
[0005] The technical solution of the present application is:
[0006] A non-airtight cabin ventilation system, comprising:
[0007] A non-airtight cabin, a ram air inlet and an exhaust port are formed on the non-airtight cabin;
[0008] A device rack is arranged inside the non-airtight cabin, and an airborne device is installed on the device rack;
[0009] A first control pipeline, one end of the first control pipeline is connected with the ram air inlet, and an adjusting valve and a one-way valve are installed in parallel on the first control pipeline;
[0010] A gas supply pipeline, one end of the gas supply pipeline is connected with the other end of the first control pipeline, and a gas supply port is arranged at the other end of the gas supply pipeline;
[0011] A return air pipeline, one end of the return air pipeline is provided with a return air port;
[0012] A second control pipeline, one end of the second control pipeline is connected with the other end of the return air pipeline, the other end of the second control pipeline is connected with the exhaust port, and a fan is installed on the second control pipeline;
[0013] A region temperature sensor is arranged inside the non-airtight cabin;
[0014] a controller configured to collect temperature signals of the area temperature sensors and control the opening degree of the regulating valve, the on-off state of the one-way valve and the rotating speed of the fan.
[0015] In at least one embodiment of the present application, a plurality of equipment racks are arranged inside the non-airtight cabin.
[0016] In at least one embodiment of the present application, a plurality of air supply ports are arranged in parallel, each of which is directed to a corresponding equipment rack.
[0017] In at least one embodiment of the present application, a plurality of air return ports are arranged in parallel, each of which is directed to a corresponding equipment rack, and the air supply port and the air return port are respectively located on opposite sides of the equipment rack.
[0018] In at least one embodiment of the present application, a plurality of area temperature sensors are arranged inside the non-airtight cabin.
[0019] In at least one embodiment of the present application, when the regulating valve fails, the controller controls the one-way valve to open and the fan to operate at high speed.
[0020] In at least one embodiment of the present application, the on-board equipment is an on-board electronic device.
[0021] In at least one embodiment of the present application, the non-airtight cabin ventilation system is installed on a UAV.
[0022] The utility model has at least the following beneficial technical effects:
[0023] The non-airtight cabin ventilation system of the present application effectively solves the problem of heat dissipation of electronic devices in the non-airtight cabin, has few system accessories, small inspection and maintenance workload, high reliability and small loss of compensation. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is a schematic diagram of a non-airtight cabin ventilation system according to an embodiment of the present application.
[0025] Among them:
[0026] 1 - ram air inlet, 2 - regulating valve, 3 - one-way valve, 4 - air supply pipeline, 5 - air supply port, 6 - equipment rack, 7 - air return port, 8 - air return pipeline, 9 - fan, 10 - exhaust port, 11 - area temperature sensor, 12 - non-airtight cabin. DETAILED DESCRIPTION
[0027] For the purpose of making the technical solutions, purposes and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more details below in combination with the drawings in the embodiments of the present application. In the drawings, the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, rather than all the embodiments. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work under the premise that the embodiments in the present application belong to the scope of protection of the present application. The embodiments of the present application will be described in detail below in combination with the drawings.
[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the scope of protection of the present application.
[0029] The embodiments of the present application will be described in detail below in combination with the drawings. Figure 1 The present application will be described in further detail.
[0030] The present application provides a non-airtight cabin ventilation system installed on a UAV, comprising: a non-airtight cabin 12, a device rack 6, a first control pipeline, a gas supply pipeline 4, a return air pipeline 8, a second control pipeline, a regional temperature sensor 11 and a controller.
[0031] Specifically, as Figure 1As shown, the non-airtight cabin 12 is provided with a ram air inlet 1 and an exhaust port 10, which can be arranged at appropriate positions of the non-airtight cabin 12. The ram air enters the interior of the non-airtight cabin 12 through the ram air inlet 1, and the air after heat exchange is discharged from the non-airtight cabin 12 through the exhaust port 10. The equipment rack 6 is arranged in the interior of the non-airtight cabin 12, and the airborne equipment is installed on the equipment rack 6. The size, structure and arrangement number of the equipment rack 6 can be designed according to the actual space of the non-airtight cabin 12 to meet the installation requirements of the airborne equipment. The airborne equipment is an airborne electronic device. One end of the first control pipeline is connected with the ram air inlet 1. The adjusting valve 2 and the one-way valve 3 are arranged in parallel on the first control pipeline. The adjusting valve 2 and the one-way valve 3 can adjust the ram air intake under different working conditions. One end of the gas supply pipeline 4 is connected with the other end of the first control pipeline. The other end of the gas supply pipeline 4 is provided with a gas supply port 5. The ram air is blown to the airborne equipment to be cooled through the gas supply port 5. One end of the return air pipeline 8 is provided with a return air port 7. The air after heat exchange enters the return air pipeline 8 through the return air port 7. One end of the second control pipeline is connected with the other end of the return air pipeline 8. The other end of the second control pipeline is connected with the exhaust port 10. The fan 9 is arranged on the second control pipeline. The rotation speed of the fan 9 is controlled to adjust the exhaust volume, thereby affecting the intake volume. The regional temperature sensor 11 is arranged in the interior of the non-airtight cabin 12 to monitor the temperature in the interior of the non-airtight cabin 12. The controller is used to collect the temperature signal of the regional temperature sensor 11 and control the opening degree of the adjusting valve 2, the switch state of the one-way valve 3 and the rotation speed of the fan 9, so as to monitor the temperature and adjust the air volume.
[0032] In the flight process of the unmanned aerial vehicle, the controller controls the adjusting valve 2 to open. The ram air enters the first control pipeline and the gas supply pipeline 4 through the ram air inlet 1, and the air is sent to the vicinity of the equipment rack 6 through the gas supply port 5 to cool the airborne equipment on the equipment rack 6. The air after heat exchange enters the return air port 7, and then is sent to the exhaust port 10 through the second control pipeline and the return air pipeline 8 to be discharged outside the machine. The cabin temperature of the non-airtight cabin 12 is monitored in real time by the regional temperature sensor 11.
[0033] In the preferred embodiment of the present application, a plurality of equipment racks 6 are arranged in the interior of the non-airtight cabin 12. The positions and numbers of the gas supply ports 5 and the return air ports 7 are determined according to the arrangement of the equipment racks 6. In this embodiment, a plurality of gas supply ports 5 are arranged in parallel at the end of the gas supply pipeline 4. Each gas supply port 5 is directed to a corresponding equipment rack 6. A plurality of return air ports 7 are arranged in parallel at the end of the return air pipeline 8. Each return air port 7 is directed to a corresponding equipment rack 6. The gas supply port 7 and the gas supply port 5 are respectively located on the opposite sides of the equipment rack 6. In this embodiment, a plurality of regional temperature sensors 11 are arranged in the interior of the non-airtight cabin 12.
[0034] The non-airtight cabin ventilation system of the application, when the regulating valve 2 fails, the controller controls the one-way valve 3 to open, and the fan 9 works at high speed. When the cabin temperature of the non-airtight cabin 12 is lower than the minimum temperature for the on-board equipment to work, the opening of the regulating valve 2 is controlled to be reduced, and the intake amount of ram air is reduced.
[0035] The non-airtight cabin ventilation system of the application, by setting the ram air inlet 1, the regulating valve 2, the first control pipeline, the air supply pipeline 4, the equipment rack 6, the air return port 7, the air return pipeline 8, the fan 9, the exhaust port 10, the area temperature sensor 11 and the controller on the non-airtight cabin 12, the non-airtight cabin ventilation system is used for equipment ventilation and heat dissipation of the non-airtight cabin. The problem of heat dissipation of electronic equipment in the non-airtight cabin is effectively solved, the system has few accessories, the inspection and maintenance workload is small, the reliability is high, and the compensation loss is small.
[0036] The above is only a specific embodiment of the application, but the protection scope of the application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the application, which should be covered in the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.
Claims
1. A non-hermetic cabin ventilation system, characterized in that, The application relates to a non-airtight cabin ventilation system. The non-airtight cabin (12) is provided with a ram air inlet (1) and an air outlet (10); An equipment rack (6) is arranged in the non-airtight cabin (12), and the onboard equipment is arranged on the equipment rack (6); A first control pipeline is connected with the ram air inlet (1), and a regulating valve (2) and a one-way valve (3) are arranged on the first control pipeline in parallel; A gas supply pipeline (4) is connected with the other end of the first control pipeline, and the other end of the gas supply pipeline (4) is provided with a gas supply port (5); A return air pipeline (8) is provided with a return air port (7); A second control pipeline is connected with the other end of the return air pipeline (8), and the other end of the second control pipeline is connected with the air outlet (10); a fan (9) is arranged on the second control pipeline; A region temperature sensor (11) is arranged in the non-airtight cabin (12); A controller is used for collecting a temperature signal of the region temperature sensor (11) and controlling the opening degree of the regulating valve (2), the switching state of the one-way valve (3) and the rotating speed of the fan (9).
2. The non-hermetic cabin ventilation system of claim 1, wherein, The equipment rack (6) is arranged in the non-airtight cabin (12).
3. The non-hermetic cabin ventilation system of claim 2, wherein, The gas supply ports (5) are arranged in parallel, and each gas supply port (5) is directed to a corresponding equipment rack (6).
4. The non-hermetic cabin ventilation system of claim 1, wherein, The return air ports (7) are arranged in parallel, each return air port (7) is directed to a corresponding equipment rack (6), and the return air port (7) and the gas supply port (5) are respectively located on the opposite sides of the equipment rack (6).
5. The non-hermetic cabin ventilation system of claim 1, wherein, The region temperature sensor (11) is arranged in the non-airtight cabin (12).
6. The non-hermetic cabin ventilation system of claim 1, wherein, When the regulating valve (2) fails, the controller controls the one-way valve (3) to open and the fan (9) to work at high rotating speed.
7. The non-hermetic cabin ventilation system of claim 1, wherein, The onboard equipment is an onboard electronic device.
8. The non-hermetic cabin ventilation system of claim 1, wherein, The non-airtight cabin ventilation system is arranged on a UAV.