CN219592203U - Small-size duct power system with novel heat radiation structure - Google Patents

Abstract

The utility model discloses a small-size duct power system with a novel heat dissipation structure, wherein a duct shell is of a cylindrical structure, and duct air channels are formed by front and rear through of the duct shell; a motor framework is arranged at the tail end of the duct air duct, and a driving motor is arranged at the tail end of the duct shell through the motor framework; the output shaft of the driving motor penetrates through the motor framework to extend into the duct air channel, and the propeller is arranged on the output shaft of the driving motor through a mounting screw; the driving motor comprises a motor shell and a stator assembly arranged in the motor shell, and a heat dissipation air duct communicated with the duct air duct is formed on the motor shell. The mode of introducing high-flow-rate air discharged from the duct air duct is realized by additionally arranging the heat dissipation air duct in the motor, so that the heat generated by the stator working is quickly taken away, the heat dissipation effect is realized, and the efficient heat dissipation is realized. The problem that a small-sized ducted power system cannot work for a long time in a high-power state due to heat dissipation is solved.

Description

Small-size duct power system with novel heat radiation structure

Technical Field

The utility model belongs to the technical field of aeromodelling airplane power systems, and relates to a small-size duct power system with a novel heat dissipation structure.

Background

The ducted power and the propeller power are the two most commonly used driving modes in the model airplane, and the two driving modes realize driving work through a motor; the motors with the same size have very large power difference in the working states of two power systems, and the rated power of the ducted power system is about 5 times that of the propeller power system, so that the requirements on a heat dissipation structure are higher for the ducted power system, the motors are matched with the conventional rotors and stators, the inside of the motors are cooled through the mode of sealing the rear end cover and heating the heat dissipation holes of the front end cover, the heat dissipation effect on the stators is not obvious, and the coil heating and blackening caused by high power can easily occur.

Disclosure of Invention

In order to solve the technical problems, the utility model adopts the following technical scheme:

a small-sized ducted power system with a novel heat dissipation structure, comprising: the bypass cylinder shell, the driving motor, the propeller and the mounting screw;

the duct cylinder shell is of a cylindrical structure, and the duct cylinder shell is communicated front and back to form a duct air channel; a motor framework is arranged at the tail end of the duct air duct, and a driving motor is arranged at the tail end of the duct shell through the motor framework;

the output shaft of the driving motor penetrates through the motor framework to extend into the duct air channel, and the propeller is arranged on the output shaft of the driving motor through a mounting screw; the driving motor comprises a motor shell and a stator assembly arranged in the motor shell, and a heat dissipation air duct communicated with the duct air duct is formed on the motor shell.

As a further scheme of the utility model: the motor shell consists of a main shell and a front cover; the rear end face of the main shell adopts an open structure to form an air inlet communicated with the duct air channel;

the stator component is directly and fixedly arranged at the position of the inner end surface of the front cover; the front cover is provided with a plurality of through air outlets; the air inlet, the inside of the main shell and the air outlet form a heat dissipation air duct.

The utility model has the beneficial effects that: the mode of introducing high-flow-rate air discharged from the duct air duct is realized by additionally arranging the heat dissipation air duct in the motor, so that the heat generated by the stator working is quickly taken away, the heat dissipation effect is realized, and the efficient heat dissipation is realized. The problem that a small-sized ducted power system cannot work for a long time in a high-power state due to heat dissipation is solved.

Drawings

Fig. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a schematic diagram of the structure of the driving motor in the present utility model.

Fig. 3 is a schematic view of still another structure of the driving motor in the present utility model.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it should be understood that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and the present utility model is not limited by the exemplary embodiments described herein. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

1-3, in an embodiment of the present utility model, a small-sized bypass power system with a novel heat dissipation structure includes: a duct barrel shell 3, a driving motor 4, a propeller 1 and a mounting screw 2;

the duct cylinder shell 3 is in a cylindrical structure, and the duct cylinder shell 3 is communicated front and back to form a duct air channel 32; a motor framework 31 is arranged at the tail end of the duct air duct 32, and a driving motor 4 is arranged at the tail end of the duct cylinder shell 3 through the motor framework 31;

the output shaft of the driving motor 4 passes through the motor framework 31 and extends into the duct air channel 32, and the propeller 1 is arranged on the output shaft of the driving motor 4 through the mounting screw 2; in the working process, the propeller 1 is driven by the driving motor 4 to perform high-speed rotation, high-flow-rate air is introduced from the front end of the duct air channel 32 and then discharged from the rear end, so that high-speed flight driving force is generated;

the drive motor 4 includes a motor housing 41 and a stator assembly 42 mounted in the motor housing 41, the stator assembly 42 mainly including: a stator body, a coil, and a silicon steel sheet;

the motor housing 41 is composed of a main casing 44, a front cover 46; the rear end face of the main shell 44 adopts an open structure to form an air inlet 45 communicated with the duct air duct 32; the front cover 46 is provided with a plurality of through air outlets 47; the air inlet 45, the inside of the main shell 44 and the air outlet 47 form a heat dissipation air duct 43;

the stator body in the stator assembly 42 is fixedly mounted directly on the inner end surface of the front cover 46, so that the coil and the silicon steel sheet leak out,

in the specific implementation, the high-flow-rate air discharged from the duct air duct 32 enters the main casing 44 from the air inlet 45 and is discharged from the air outlet 47, so that the heat generated by the operation of the stator assembly 42 can be rapidly taken away by the high-speed air flow generated by the propeller 1, and the effect of high-efficiency heat dissipation is realized.

It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (2)

1. A small-sized ducted power system with a novel heat dissipation structure, comprising: the bypass cylinder shell, the driving motor, the propeller and the mounting screw;

the duct cylinder shell is of a cylindrical structure, and the duct cylinder shell is communicated front and back to form a duct air channel; a motor framework is arranged at the tail end of the duct air duct, and a driving motor is arranged at the tail end of the duct shell through the motor framework;

the output shaft of the driving motor penetrates through the motor framework to extend into the duct air channel, and the propeller is arranged on the output shaft of the driving motor through a mounting screw; the driving motor is characterized by comprising a motor shell and a stator assembly arranged in the motor shell, wherein the motor shell is formed in a heat dissipation air duct communicated with the duct air duct.

2. The small-sized duct power system with a novel heat dissipation structure as set forth in claim 1, wherein the motor housing is composed of a main housing and a front cover; the rear end face of the main shell adopts an open structure to form an air inlet communicated with the duct air channel;

the stator component is directly and fixedly arranged at the position of the inner end surface of the front cover; the front cover is provided with a plurality of through air outlets; the air inlet, the inside of the main shell and the air outlet form a heat dissipation air duct.