Ducted power assembly

Abstract

The utility model relates to the technical field of aerospace, in particular to a ducted power assembly which comprises a ducted shell. A stator seat is arranged at the center position in the duct shell; an end cover is arranged at one end of the stator seat; a power piece is arranged in the stator seat; a rotor is rotationally arranged in the duct shell; the rotor comprises a mounting part and blades arranged around the periphery of the mounting part; an output shaft of the power piece penetrates through the end cover and then is connected with the middle part of the mounting part; a first air inlet hole is formed in the end cover in a penetrating manner; and a first heat dissipation channel communicated with the first air inlet hole is formed in the mounting part in a penetrating manner. According to the utility model, the first heat dissipation channel is arranged on the mounting part in a penetrating manner, and the first air inlet hole is arranged on the end cover in a penetrating manner, so that part of airflow sequentially flows through the first heat dissipation channel and the first air inlet hole to dissipate heat of the power piece in the rotating process of the rotor, and heat generated by the power piece can be effectively taken away.

Description

TECHNICAL FIELD

[0001] The utility model relates to aerospace technology field, concretely relates to a ducted power assembly. BACKGROUND

[0002] General aviation, low altitude aircraft and unmanned aerial vehicle are usually equipped with ducted power assembly, which contains motor or engine and paddle, the motor or engine produces lift by driving the paddle to rotate, and the ducted design can protect the paddle from causing harm to personal safety and reduce noise, but there are certain challenges in heat management of the motor or engine.

[0003] Because the stator seat of the motor or engine in the duct is closed, the heat generated by the motor or engine during operation is difficult to effectively dissipate; under long-time operation, the working temperature of the motor or engine continues to rise, which may exceed its safe working temperature range, affecting the performance and service life of the motor or engine. SUMMARY

[0004] The utility model discloses a ducted power assembly to solve the above problems in the prior art.

[0005] The utility model discloses a ducted power assembly, which comprises a duct shell, a stator seat is arranged at the center position in the duct shell, an end cover is arranged at one end of the stator seat, a motor or engine is arranged in the stator seat, and a rotor is rotatably arranged in the duct shell.

[0006] The rotor comprises a mounting portion and paddles arranged around the outer periphery of the mounting portion, the output shaft of the power component penetrates through the end cover and is connected to the middle part of the mounting portion, the end cover is provided with a first air inlet hole, and the mounting portion is provided with a first heat dissipation channel communicated with the first air inlet hole.

[0007] The utility model further sets up, one end of the mounting portion close to the end cover is provided with a third air inlet hole communicated with the first air inlet hole, one end of the mounting portion away from the end cover is provided with a second air inlet hole, and the third air inlet hole and the second air inlet hole are communicated with the first heat dissipation channel respectively.

[0008] The utility model further sets up, one end of the mounting portion away from the end cover is connected with a fairing, and the fairing is provided with a fourth air inlet hole communicated with the second air inlet hole.

[0009] The utility model further sets up, the fairing and the mounting portion are all conical.

[0010] The utility model further sets up, the power component is provided with a second heat dissipation channel communicated with the first air inlet hole.

[0011] The utility model further sets up, the outer wall of power piece is equipped with a plurality of radiating fins, the radiating fin is equipped with stator seat.

[0012] The utility model further sets up, a plurality of radiating fins are along the length direction of power piece setting.

[0013] The utility model further sets up, the bearing is equipped between the installation portion, end cover and the output shaft of power piece, the outer ring of bearing is fixed between installation portion and end cover, the output shaft of power piece is connected with the inner ring of bearing.

[0014] The utility model further sets up, the other end of stator seat is equipped with rear cover, the rear cover is conical, the middle part of the end of rear cover away from stator seat is equipped with radiating hole.

[0015] The utility model further sets up, the guiding support rod is equipped between stator seat and culvert shell, the wire hole is equipped in the guiding support rod.

[0016] The utility model has the advantages that the first radiating passage is set through the installation portion, and the first air inlet is set through the end cover, in the process of the rotation of rotor, part of airflow flows through the first radiating passage and the first air inlet in turn, and then the power piece is radiated, so that the heat generated by the power piece can be effectively taken away. BRIEF DESCRIPTION OF DRAWINGS

[0017] The embodiments in the drawings do not constitute any limitation on the utility model, and other drawings can be obtained by the following drawings without creative labor for the ordinary skilled in the art.

[0018] Figure 1 It is the structural schematic diagram of the utility model,

[0019] Figure 2 It is the structural schematic diagram of another view of the utility model,

[0020] Figure 3 It is the structural exploded view of the utility model,

[0021] Figure 4 It is the structural exploded view of another view of the utility model,

[0022] Figure 5 It is the sectional view of the utility model,

[0023] The components are as follows: 1. Duct housing; 2. Stator base; 21. Heat dissipation fins; 3. End cover; 31. First air inlet; 4. Power component; 41. Second heat dissipation channel; 5. Mounting part; 51. Blade; 52. First heat dissipation channel; 53. Third air inlet; 54. Second air inlet; 6. Fairing; 61. Fourth air inlet; 7. Bearing; 8. Rear cover; 81. Heat dissipation hole; 9. Guide support rod; 91. Cable hole. Detailed Implementation

[0024] The present invention will be further described in conjunction with the following embodiments.

[0025] Depend on Figures 1 to 5 As can be seen, the ducted power assembly described in this embodiment includes a duct housing 1; a stator seat 2 is provided at the center of the duct housing 1; an end cap 3 is provided at one end of the stator seat 2; a power component 4 is provided inside the stator seat 2; and a rotor is rotatably provided inside the duct housing 1; wherein the power component 4 is a motor or an engine.

[0026] The rotor includes a mounting part 5 and blades 51 arranged around the outer periphery of the mounting part 5; the output shaft of the power component 4 passes through the end cover 3 and is connected to the middle of the mounting part 5; the end cover 3 is provided with a first air inlet 31; the mounting part 5 is provided with a first heat dissipation channel 52 communicating with the first air inlet 31.

[0027] Specifically, in this embodiment, when the ducted power assembly is in use, the power component 4 inside the stator base 2 is activated. The output shaft of the power component 4 drives the rotor to rotate. During the rotation of the rotor, under the rotation of the blades 51, an airflow is generated in the duct housing 1 from the blades 51 toward the stator base 2. Since the mounting part 5 is provided with a first heat dissipation channel 52 and the end cover 3 is provided with a first air inlet 31, during the rotation of the rotor, some of the airflow flows through the first heat dissipation channel 52 and the first air inlet 31 in sequence to dissipate heat from the power component 4, thereby effectively removing the heat generated by the power component 4.

[0028] In this embodiment, a ducted power assembly is provided with a third air inlet 53 communicating with a first air inlet 31 at the end of the mounting part 5 near the end cover 3; and a second air inlet 54 at the end of the mounting part 5 away from the end cover 3. The third air inlet 53 and the second air inlet 54 are respectively connected to a first heat dissipation channel 52. This arrangement facilitates airflow to sequentially pass through the second air inlet 54, the first heat dissipation channel 52, the third air inlet 53, and the first air inlet 31, thereby dissipating heat from the power component 4.

[0029] In this embodiment, a ducted power assembly is provided, wherein the end of the mounting part 5 away from the end cover 3 is connected to a fairing 6; the fairing 6 is provided with a fourth air intake 61 that communicates with the second air intake 54.

[0030] Specifically, the fairing 6 serves to disperse the airflow entering the duct shell 1 and guide the airflow, so that the airflow can flow uniformly in the duct shell 1.

[0031] In addition, part of the airflow passes through the fourth air inlet hole 61, the second air inlet hole 54, the first heat dissipation channel 52, the third air inlet hole 53 and the first air inlet hole 31 in sequence, and then dissipates heat for the power component 4.

[0032] The ducted power assembly described in the embodiment has the fairing 6 and the mounting portion 5 in a conical shape. The bottom surface of the fairing 6 is arranged on the top surface of the mounting portion 5, and the bottom surface of the mounting portion 5 is arranged close to the direction of the end cover 3. Specifically, the above arrangement can further disperse the airflow entering the duct shell 1 and guide the airflow, so that the airflow can flow uniformly in the duct shell 1.

[0033] The ducted power assembly described in the embodiment has the power component 4 through which the second heat dissipation channel 41 communicating with the first air inlet hole 31 is arranged. The above arrangement allows part of the airflow to directly enter the power component 4, dissipates heat for the coil inside the power component 4, and further accelerates heat dissipation of the power component 4.

[0034] The ducted power assembly described in the embodiment has the outer wall of the power component 4 provided with a plurality of heat dissipation fins 21, and the heat dissipation fins 21 arranged in the stator base 2. The above arrangement can further improve the heat dissipation performance of the power component 4.

[0035] The ducted power assembly described in the embodiment has the plurality of heat dissipation fins 21 arranged along the length direction of the power component 4. The above arrangement can further improve the heat dissipation performance of the power component 4 and sufficiently dissipate heat for the power component 4.

[0036] The ducted power assembly described in the embodiment has the bearing 7 arranged between the mounting portion 5, the end cover 3 and the output shaft of the power component 4. The outer ring of the bearing 7 is fixedly arranged between the mounting portion 5 and the end cover 3, and the output shaft of the power component 4 is connected with the inner ring of the bearing 7. The above arrangement makes the structure between the mounting portion 5, the end cover 3 and the output shaft of the power component 4 stable and reliable.

[0037] The duct type power assembly, the other end of the stator base 2 is provided with a rear cover 8; the middle part of the end of the rear cover 8 away from the stator base 2 is provided with a heat dissipation hole 81; the rear cover 8 is a conical body. The bottom surface of the rear cover 8 is connected with the other end of the stator base 2; through the above setting, the airflow after heat dissipation of the power piece 4 can be gathered together and sprayed from the heat dissipation hole 81 of the rear cover 8, so that the overall thrust of the duct type power assembly can be compensated; and the heat in the power piece 4 can be conveniently discharged.

[0038] The duct type power assembly, the stator base 2 and the duct shell 1 are provided with a guide support rod 9; the guide support rod 9 is provided with a threading hole 91. Through the above setting, the strength between the stator base 2 and the duct shell 1 can be enhanced, and the threading hole 91 is used for threading motor wires and various sensor lines, or oil pipes or oil lines in and out when oil is driven.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited to the scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A ducted power assembly, characterized by: The utility model provides a kind of wind tunnel shell (1);The central position in the wind tunnel shell (1) is equipped with stator seat (2);The one end of stator seat (2) is equipped with end cover (3);Power part (4) is equipped in stator seat (2);Rotary is equipped with rotor in wind tunnel shell (1); The rotor includes mounting portion (5) and paddle (51) being provided around the outer periphery of mounting portion (5);The output shaft of power part (4) is connected with the middle part of mounting portion (5) after passing through end cover (3);End cover (3) is equipped with first air inlet hole (31);Mounting portion (5) is equipped with first heat dissipation channel (52) communicated with first air inlet hole (31).

2. A ducted power assembly according to claim 1, wherein: The one end of mounting portion (5) close to end cover (3) is equipped with third air inlet hole (53) communicated with first air inlet hole (31);The one end of mounting portion (5) away from end cover (3) is equipped with second air inlet hole (54);Third air inlet hole (53) and second air inlet hole (54) are communicated with first heat dissipation channel (52) respectively.

3. A ducted power assembly according to claim 2, wherein: The one end of mounting portion (5) away from end cover (3) is connected with fairing (6);Fairing (6) is equipped with fourth air inlet hole (61) communicated with second air inlet hole (54).

4. A ducted power assembly according to claim 3, wherein: Fairing (6) and mounting portion (5) are both conical.

5. The ducted power assembly of claim 1, wherein: Power part (4) is equipped with second heat dissipation channel (41) communicated with first air inlet hole (31).

6. The ducted power assembly of claim 1, wherein: The outer wall of stator seat (2) is equipped with a plurality of heat dissipation fins (21).

7. A ducted power assembly according to claim 6, wherein: A plurality of heat dissipation fins (21) are arranged along the length direction of stator seat (2).

8. The ducted power assembly of claim 1, wherein: Bearing (7) is arranged between mounting portion (5), end cover (3) and the output shaft of power part (4);The outer ring of bearing (7) is fixed between mounting portion (5) and end cover (3);The output shaft of power part (4) is connected with the inner ring of bearing (7).

9. The ducted power assembly of claim 1, wherein: The other end of stator seat (2) is equipped with back cover (8);Back cover (8) is conical;The middle part of the one end of back cover (8) away from stator seat (2) is equipped with heat dissipation hole (81).

10. The ducted power assembly of claim 1, wherein: Stator seat (2) and wind tunnel shell (1) are equipped with guide support rod (9);Guide support rod (9) is equipped with threading hole (91).

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