阅读说明：本技术 一种电动无人直升机及电机系统 (Electric unmanned helicopter and motor system ) 是由 印明威 海日汗 包长春 徐震翰 李京阳 王贤宇 于 2021-02-22 设计创作，主要内容包括：本发明公开了一种电动无人直升机及电机系统,该电机系统包括电机,所述电机固定于电动无人直升机的尾梁安装架,所述电机系统还包括两个散热扇和安装支架,所述两个散热扇通过所述安装支架安装于所述尾梁安装架,并且两个所述散热扇的出风口至少部分朝向所述电机的转子部分；本发明中设置有两个散热扇,两个散热扇的出风口朝向电机的转子部分,这样散热扇吹出的风能被快速送至电机的发热部件,进而快速带走发热部件的热量,大大提高了电机的散热效率。(The invention discloses an electric unmanned helicopter and a motor system, wherein the motor system comprises a motor, the motor is fixed on a tail beam mounting frame of the electric unmanned helicopter, the motor system also comprises two heat dissipation fans and a mounting bracket, the two heat dissipation fans are mounted on the tail beam mounting frame through the mounting bracket, and air outlets of the two heat dissipation fans at least partially face to a rotor part of the motor; the two heat dissipation fans are arranged in the motor, and the air outlets of the two heat dissipation fans face the rotor part of the motor, so that wind energy blown by the heat dissipation fans is quickly sent to heating parts of the motor, the heat of the heating parts is further quickly taken away, and the heat dissipation efficiency of the motor is greatly improved.)

1. The utility model provides a motor system of electronic unmanned helicopter, includes motor (3), its characterized in that, motor (3) are fixed in tail boom mounting bracket (4) of electronic unmanned helicopter, motor system still includes two heat dissipation fans (1) and installing support, two heat dissipation fans (1) pass through the installing support install in tail boom mounting bracket (4), and two the air outlet of heat dissipation fan (1) is at least partly towards the rotor part of motor (3).

2. The motor system according to claim 1, wherein each heat dissipation fan (1) comprises an air pipe (11), the air pipe (11) is circumferentially closed, the lower end opening of the air pipe (11) is the air outlet, and fan blades (13) are arranged inside the air pipe (11).

3. The electric machine system according to claim 2, characterized in that the air duct (11) comprises a vertical section (111) and an inclined section (112) connected to each other, the upper end of the vertical section (111) is suspended from the tail beam mounting bracket (4), the inclined section (112) is inclined toward the side of the electric machine, and the fan blades (13) are fixed inside the inclined section (112).

4. The electric machine system according to claim 3, characterized in that the tail boom mounting bracket (4) comprises a plurality of supporting cross beams (41) and supporting longitudinal beams (42) forming a skeleton, the mounting bracket comprising a mounting plate (2), the mounting plate (2) being detachably fixed to the skeleton, the vertical section (111) being fixed to the top plate of the tail boom mounting bracket (4) by means of bolts (6).

5. An electric machine system as claimed in claim 4, characterized in that the mounting plate (2) is detachably mounted to the tail boom mounting bracket (4) by means of bolts.

6. The electric machine system according to claim 4, further comprising a plurality of supports (5), wherein the electric machine (3) is supported and suspended on the frame by the plurality of supports (5).

7. The electric machine system according to any of claims 1 to 6, characterized in that two heat dissipation fans (1) are located on either side of the axial central vertical plane of the electric machine (3).

8. An electric motor system as claimed in claim 7, characterized in that the two air outlets are each located obliquely above the electric motor (3).

9. An electric unmanned helicopter comprising a body and a motor system, characterized in that the motor system is the motor system of the electric unmanned helicopter of any one of claims 1 to 8.

Technical Field

The invention relates to the technical field of aircrafts, in particular to an electric unmanned helicopter and a motor system.

Background

The motor is one of the important components of the electric unmanned helicopter. When the motor works, the coil and the rotor inside the motor can generate heat, especially, the wire of the coil in the motor can generate heat when working due to the resistance problem of the wire and the influence of inductance, and the motor can be burnt out when the generated heat is enough, so that the motor is often used under the rated power of the motor or the working time of the motor is shortened for protecting the motor. This measure also limits the operational capacity of the motor.

There are three heat dissipation methods of the current commonly used motor, which are conduction heat dissipation, air-cooled heat dissipation and liquid-cooled heat dissipation. For the unmanned helicopter, the volume is small, the installation space of the motor is quite compact, and how to improve the heat dissipation efficiency of the motor as much as possible in a small space is a problem which is always concerned by technical personnel in the field.

Disclosure of Invention

The invention aims to provide an electric unmanned helicopter and a motor system with high heat dissipation efficiency.

The invention provides a motor system of an electric unmanned helicopter, which comprises a motor, wherein the motor is fixed on a tail beam mounting rack of the electric unmanned helicopter, the motor system also comprises two heat dissipation fans and a mounting rack, the two heat dissipation fans are mounted on the tail beam mounting rack through the mounting rack, and air outlets of the two heat dissipation fans at least partially face to a rotor part of the motor.

The two heat dissipation fans are arranged in the motor, and the air outlets of the two heat dissipation fans face the rotor part of the motor, so that wind energy blown by the heat dissipation fans is quickly sent to heating parts of the motor, the heat of the heating parts is further quickly taken away, and the heat dissipation efficiency of the motor is greatly improved.

Optionally, each heat dissipation fan includes the tuber pipe, tuber pipe circumference is sealed, the lower extreme opening of tuber pipe does the air outlet, the inside flabellum that is provided with of tuber pipe.

Optionally, the tuber pipe is including continuous vertical section and slope section, the upper end hoist and mount of vertical section in the tail boom mounting bracket, the slope section orientation motor one side slope, the flabellum is fixed in inside the slope section.

Optionally, the tail boom mounting bracket is including many supporting beam and the support longeron that forms the skeleton, the installing support includes the mounting panel, the mounting panel can be dismantled and be fixed in the skeleton, vertical section is fixed in through the bolt on the roof of tail boom mounting bracket.

Optionally, the mounting plate is detachably mounted to the tail beam mounting bracket through a bolt.

Optionally, still include many spinal branchs post, the motor passes through many spinal branchs post support hoist and mount in the skeleton.

Optionally, the two heat dissipation fans are respectively located on two sides of an axial center vertical plane of the motor.

Optionally, the two air outlets are respectively located obliquely above the motor.

In addition, the invention also provides an electric unmanned helicopter which comprises a helicopter body and a motor system, wherein the motor system is the motor system of the electric unmanned helicopter.

Because the electric unmanned helicopter comprises the motor system, the electric unmanned helicopter also has the technical effect of the motor system.

Drawings

Fig. 1 is a schematic structural diagram of a motor system of an electric unmanned helicopter according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the heat dissipation fan in fig. 1.

Wherein, in fig. 1 to 2:

1-a heat dissipation fan; 11-air pipe; 111-vertical section; 112-inclined section; 13-fan blades; 2-mounting a plate; 3, a motor; 4-a tail boom mounting frame; 41-supporting the cross beam; 42-support stringers; 5-a pillar; 6-bolt.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a motor system of an electric unmanned helicopter according to an embodiment of the present invention; fig. 2 is a schematic structural view of the heat dissipation fan in fig. 1.

The invention provides a motor system of an electric unmanned helicopter, which comprises a motor 3, wherein the motor 3 mainly provides electric energy for part of executing elements of the electric unmanned helicopter. The motor is fixed in tail boom mounting bracket 4 of electronic unmanned helicopter, and specifically, motor 3 includes parts such as casing, rotor and stator coil, and the parts such as rotor and stator coil are installed inside the casing, and the casing is installed in tail boom mounting bracket 4.

The motor system further comprises two heat dissipation fans 1 and a mounting bracket, wherein the two heat dissipation fans 1 are mounted on the tail beam mounting frame 4 through the mounting bracket, and at least part of air outlets of the two heat dissipation fans 1 face to a rotor part of the motor. That is, the air outlets of the two heat dissipation fans 1 are partially or entirely directed toward the rotor portion of the electron.

The two heat dissipation fans 1 are arranged in the motor, and the air outlets of the two heat dissipation fans 1 face the rotor part of the motor, so that wind energy blown out by the heat dissipation fans 1 is quickly sent to heating parts of the motor, the heat of the heating parts is further quickly taken away, and the heat dissipation efficiency of the motor is greatly improved.

In a specific embodiment, each heat dissipation fan 1 includes an air duct 11, the air duct 11 is circumferentially closed, the lower end of the air duct 11 is open to form an air outlet, and a fan blade 13 is disposed inside the air duct 11. The fan blades 13 rotate to blow out the wind from the wind outlet. The cross-sectional area of the duct 11 can be sized according to the particular environment of use. The air pipe 11 is beneficial to centralizing air flow and is convenient for efficiently dissipating heat of the motor.

In a specific embodiment, the air duct 11 includes a vertical section 111 and an inclined section 112 connected to each other, an upper end of the vertical section 111 is hung on the tail beam mounting bracket 4, an air outlet end of the inclined section 112 is inclined toward the motor side, and the fan blades 13 are fixed inside the inclined section 112.

In the above embodiment, the air pipe 11 is designed into two sections, the inclined section 112 can be designed according to the specific installation position of the motor, that is, the inclined section 112 is arranged according to the position of the motor in a matching manner, so that the installation of the air pipe 11 can be met, the direction of the air outlet can be ensured, and the purpose of quick heat dissipation of the motor can be realized.

In the above embodiments, the tail boom mounting bracket 4 may include a plurality of supporting cross beams 41 and supporting longitudinal beams 42 forming a framework, the mounting bracket includes the mounting plate 2, the mounting plate 2 is detachably fixed to the framework, and the vertical section 111 is fixed to the top plate of the tail boom mounting bracket 4 through the bolts 6.

The structure of the tail beam mounting rack 4 is as simple as possible, and the tail beam mounting rack 4 is formed by a rod piece, so that ventilation and heat dissipation are facilitated on the premise of providing reliable support.

The mounting plate 2 in the above embodiment is detachably mounted on the tail beam mounting frame 4 by bolts, which is convenient for maintenance and disassembly.

In the above embodiments, the motor system may further include a plurality of pillars 5, and the motor is supported and suspended on the frame through the plurality of pillars 5.

In the above-described lattice embodiment, the two heat dissipation fans 1 are respectively located on both sides of the axial center vertical plane of the motor. Thus being beneficial to the uniform heat dissipation of all parts of the motor.

Specifically, the two air outlets may be respectively located obliquely above the motor 3.

In addition, the invention also provides an electric unmanned helicopter which comprises a helicopter body and a motor system, wherein the motor system is the motor system of the electric unmanned helicopter in any one of the embodiments.

For other structures of the electric unmanned helicopter, reference is made to the prior art, and details are not repeated herein.

Because the electric unmanned helicopter comprises the motor system, the electric unmanned helicopter also has the technical effect of the motor system.

The electric unmanned helicopter and the motor system provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.