An integrated heat dissipation mechanism for ducted fan electric propulsion systems

Abstract

This utility model discloses an integrated heat dissipation mechanism for a ducted fan electric propulsion system, relating to the field of ducted fan technology. The key technical points are: it includes a duct, a motor is installed inside the duct, a fan is installed on the output shaft of the motor, and a heat dissipation assembly is installed between the duct and the motor. The heat dissipation assembly includes two first arc-shaped plates covering the surface of the motor, with a plurality of heat dissipation plates evenly arranged along the outer surface of the first arc-shaped plates. The other end of each heat dissipation plate is detachably connected to the inner wall of the duct. The purpose of this utility model is to provide an integrated heat dissipation mechanism for a ducted fan electric propulsion system.

Description

Technical Field

[0001] This utility model relates to the field of ducted fan technology, and more specifically, to an integrated heat dissipation mechanism for a ducted fan electric propulsion system. Background Technology

[0002] Ducted fan electric propulsion systems involve setting up an electric propulsion system inside the duct. Since electric propulsion systems generate heat during operation, additional heat dissipation components are usually required for air cooling. However, additional cooling mechanisms increase structural weight, and the increased surface area of ​​the heat dissipation components causes aerodynamic losses, increases drag, and reduces system efficiency.

[0003] Chinese Patent Announcement CN117318382A discloses an integrated air-cooled ducted fan electric propulsion system. Its key technical features include: a duct with a fan shroud inside, fan blades fixedly mounted on the outer side of the shroud; a motor installed inside the duct, its output shaft connected to the fan blades, and stator blades fixedly mounted on the outer side of the motor; a guide block fixed to the edge of the fan shroud; a support plate fixed to the inner wall of the duct, with a movable rod penetrating its edge; and a fixed tube fixedly penetrating the interior of the support plate, with a connecting tube fixed to its top.

[0004] The above technical solution improves system efficiency by reducing the structural weight of the heat dissipation system and reducing the resistance caused by the air-cooled heat dissipation system. However, in actual operation, it only transfers the heat of the motor through the stator blades. The contact area between the stator blade ends and the motor is small, resulting in low heat dissipation efficiency for the motor and failing to guarantee effective heat dissipation.

[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an integrated heat dissipation mechanism for a ducted fan electric propulsion system.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an integrated heat dissipation mechanism for a ducted fan electric propulsion system, including a duct, a motor is arranged inside the duct, a fan is arranged on the output shaft of the motor, a heat dissipation component is arranged between the duct and the motor, the heat dissipation component includes two first arc-shaped plates covering the surface of the motor, a plurality of heat dissipation plates are evenly arranged along the outer surface of the first arc-shaped plates, and the other end of the heat dissipation plate is detachably connected to the inner wall of the duct.

[0008] The present invention is further configured such that: a second arc-shaped plate is provided at the end of the heat sink plate, and a plurality of slots for inserting the second arc-shaped plate are evenly provided along the inner wall of the duct, the slots passing through the end of the duct located at the tail of the motor.

[0009] The present invention is further configured such that: a positioning component is provided at the tail of the motor, the positioning component includes a heat sink, and a heat sink groove covering the tail of the motor is provided on one side surface of the heat sink.

[0010] The present invention is further configured such that: the heat sink is uniformly provided with a plurality of connecting plates corresponding to the heat sink plate along its outer circumferential side wall, and the end of the connecting plate is provided with a plug plate inserted into a slot.

[0011] The present invention is further configured such that: one end of the insert plate is provided with a limiting edge covering the end of the culvert, and the outer surface of the limiting edge is provided with bolts for fixing to the culvert.

[0012] The present invention is further configured such that the two side walls of the heat sink and the connecting plate are curved.

[0013] The present invention is further configured such that the edge of the outer circumferential surface of the heat sink is arc-shaped.

[0014] The present invention is further configured such that both the heat dissipation component and the positioning component are made of metal with good heat dissipation properties.

[0015] The present invention has the following beneficial effects: When the equipment is working, the motor drives the fan to rotate, and the heat generated by the motor itself is transferred to the first arc plate and then to the heat sink. When the air flows in the duct, the heat can be effectively transferred from the heat sink to the flowing air, thereby effectively cooling the motor. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of this embodiment;

[0017] Figure 2 This is a schematic diagram of the heat dissipation component in this embodiment;

[0018] Figure 3 This is a schematic diagram of the duct structure in this embodiment;

[0019] Figure 4 This is a schematic diagram of the positioning component in this embodiment;

[0020] Figure 5 This is a three-dimensional structural diagram from another angle of this embodiment.

[0021] Figure descriptions: 1. Duct; 2. Motor; 3. Fan; 4. First arc plate; 5. Heat sink; 6. Second arc plate; 7. Slot; 8. Heat sink cover; 9. Heat sink groove; 10. Connecting plate; 11. Insert plate; 12. Limiting edge; 13. Bolt. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0024] As shown in the figure, an integrated heat dissipation mechanism for a ducted fan electric propulsion system includes a duct 1, a motor 2 disposed inside the duct 1, a fan 3 disposed on the output shaft of the motor 2, and a heat dissipation assembly disposed between the duct 1 and the motor 2. The heat dissipation assembly includes two first arc-shaped plates 4 covering the surface of the motor 2, and a plurality of heat dissipation plates 5 are evenly disposed along the outer surface of the first arc-shaped plates 4. The other end of the heat dissipation plates 5 is detachably connected to the inner wall of the duct 1.

[0025] When the equipment is working, the motor 2 drives the fan 3 to rotate. The heat generated by the motor 2 is transferred to the first arc plate 4, and then to the heat sink 5. When the air flows in the duct 1, the heat can be effectively transferred from the heat sink 5 to the flowing air, thus effectively cooling the motor 2.

[0026] The end of the heat sink 5 is provided with a second arc-shaped plate 6. The duct 1 has a number of slots 7 evenly opened along its inner wall for inserting the second arc-shaped plate 6. The slots 7 pass through the end of the duct 1 located at the tail of the motor 2. During installation, the motor 2 is first placed between the two first arc-shaped plates 4, and the motor 2 and the heat sink are installed in the duct 1, so that the second arc-shaped plate 6 is inserted into the corresponding slot 7. This facilitates installation and ensures the stability of the equipment after installation. During operation, some of the heat on the heat sink 5 can be transferred to the second arc-shaped plate 6 and then to the duct 1, thereby further improving the heat dissipation effect of the equipment.

[0027] A positioning component is provided at the tail of the motor 2. The positioning component includes a heat sink 8. A heat sink 9 covering the tail of the motor 2 is provided on one side surface of the heat sink 8. The tail of the motor 2 is attached to the inner wall of the heat sink 9. A plurality of connecting plates 10 corresponding to the heat sink 5 are evenly provided along the outer circumference of the heat sink 8. An insert plate 11 inserted into the slot 7 is provided at the end of the connecting plate 10.

[0028] By covering the tail of the motor 2 with a heat sink 8, the installation stability of the motor 2 is further improved, and the heat generated at the tail of the motor 2 is absorbed and transferred to the connecting plate 10 and into the flowing air, thereby further improving the heat dissipation effect of the motor 2.

[0029] One end of the insert plate 11 is provided with a limiting edge 12 that covers the end of the duct 1. The outer surface of the limiting edge 12 is provided with bolts 13 for fixing to the duct 1 to ensure the installation and positioning of the equipment.

[0030] The heat sink 5 and the connecting plate 10 have curved side walls, and the outer circumferential surface of the heat sink 8 has a curved edge to reduce resistance to airflow and improve system efficiency.

[0031] Both the heat dissipation component and the positioning component are made of metal with good heat dissipation properties, specifically aluminum alloy, to ensure heat dissipation effect.

[0032] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. An integrated heat sink mechanism for a ducted fan electric propulsion system, characterized by: The duct (1) includes a motor (2) installed inside the duct (1), and a fan (3) installed on the output shaft of the motor (2). A heat dissipation assembly is installed between the duct (1) and the motor (2). The heat dissipation assembly includes two first arc-shaped plates (4) covering the surface of the motor (2). Several heat dissipation plates (5) are evenly arranged along the outer surface of the first arc-shaped plates (4). The other end of the heat dissipation plates (5) is detachably connected to the inner wall of the duct (1).

2. The integrated heat dissipation mechanism for a ducted fan electric propulsion system according to claim 1, characterized in that: The end of the heat sink (5) is provided with a second arc plate (6), and the duct (1) is provided with a plurality of slots (7) for inserting the second arc plate (6) along its inner wall. The slots (7) pass through the end of the duct (1) located at the tail of the motor (2).

3. The integrated heat dissipation mechanism for a ducted fan electric propulsion system according to claim 2, characterized in that: The motor (2) is provided with a positioning component at its tail end. The positioning component includes a heat sink (8). A heat sink groove (9) covering the tail end of the motor (2) is provided on one side surface of the heat sink (8).

4. An integrated heat dissipation mechanism for a ducted fan electric propulsion system according to claim 3, characterized in that: The heat sink (8) has a plurality of connecting plates (10) corresponding to the heat sink (5) evenly arranged along its outer circumference wall, and the end of the connecting plate (10) is provided with a plug plate (11) inserted into the slot (7).

5. An integrated heat dissipation mechanism for a ducted fan electric propulsion system according to claim 4, characterized in that: One end of the insert plate (11) is provided with a limiting edge (12) covering the end of the duct (1), and the outer surface of the limiting edge (12) is provided with bolts (13) for fixing to the duct (1).

6. An integrated heat dissipation mechanism for a ducted fan electric propulsion system according to claim 5, characterized in that: The heat sink (5) and the two side walls of the connecting plate (10) are arranged in an arc shape.

7. An integrated heat dissipation mechanism for a ducted fan electric propulsion system according to claim 6, characterized in that: The outer circumferential surface of the heat sink (8) is set with an arc surface.

8. An integrated heat dissipation mechanism for a ducted fan electric propulsion system according to claim 6, characterized in that: Both the heat dissipation component and the positioning component are made of metal with good heat dissipation properties.

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