CN215835266U

CN215835266U - Brushless motor outer rotor structure for unmanned aerial vehicle

Info

Publication number: CN215835266U
Application number: CN202122265735.5U
Authority: CN
Inventors: 杨能明
Original assignee: Shenzhen Tuohang Innovation Technology Co ltd
Current assignee: Shenzhen Tuohang Innovation Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-02-15
Anticipated expiration: 2031-09-16

Abstract

The utility model belongs to the technical field of brushless motors, and relates to a brushless motor outer rotor structure for an unmanned aerial vehicle, which comprises a bottom shell and an outer rotor casing, wherein the lower surface of the bottom shell is provided with four grooves, the four grooves are symmetrically arranged on the lower surface of the bottom shell in pairs, screws are arranged in the grooves, a fixed plate is fixedly connected in the bottom shell through the screws, the upper surface of the fixed plate is fixedly connected with an inner stator iron core, and the surface of the inner stator iron core is provided with an excitation winding. The brushless motor outer rotor structure for the unmanned aerial vehicle has the advantages that through the arrangement of the heat dissipation holes and the inclined fan blades, when the brushless motor outer rotor structure is used for the unmanned aerial vehicle, the outer rotor casing rotates, air is pumped into the outer rotor casing to dissipate heat under the action of the inclined fan blades, the air flows fast through the motor and is discharged from the heat dissipation holes, and therefore the heat of the motor is dissipated, and people can more conveniently dissipate the heat of the motor under the action of the heat dissipation holes and the inclined fan blades.

Description

Brushless motor outer rotor structure for unmanned aerial vehicle

Technical Field

The utility model belongs to the technical field of brushless motors, and particularly relates to an outer rotor structure of a brushless motor for an unmanned aerial vehicle.

Background

The unmanned aerial vehicle is an unmanned aerial vehicle operated by utilizing radio remote control equipment and a self-contained program control device, and is widely applied to the industries of city management, agriculture, geology, meteorology, electric power, rescue and relief work, video shooting and the like in the civil field Reliability and service life, and even burning the motor in severe cases.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an outer rotor structure of a brushless motor for an unmanned aerial vehicle, which solves the technical problem of poor heat dissipation effect.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a brushless motor outer rotor structure for unmanned aerial vehicle, includes drain pan and outer rotor casing, the drain pan lower surface is seted up flutedly, the recess is total four, and two bisymmetries are seted up at the drain pan lower surface, the inside screw that is provided with of recess, the drain pan is inside through screw fixedly connected with fixed plate, fixed surface fixedly connected with inner stator iron core on the fixed plate, inner stator iron core surface is provided with excitation winding, fixed surface fixedly connected with bearing on the fixed plate, outer rotor casing surface wears to be equipped with the pivot, the pivot is worn to establish in the bearing, outer rotor casing inner wall fixedly connected with permanent magnet magnetic pole, outer rotor casing upper surface is provided with oblique flabellum, oblique flabellum is total a plurality ofly, all sets up at outer rotor casing upper surface.

As a further scheme of the utility model: the outer rotor shell is provided with two through holes which are symmetrically arranged on the surface of the outer rotor shell, and the surface of the inner stator iron core is embedded with a copper condenser pipe which is arranged in the through holes in a penetrating manner.

As a further scheme of the utility model: the surface of the excitation winding is fixedly connected with a power line, the power line penetrates through the through hole, the outer rotor casing is provided with a plurality of heat dissipation holes, and the heat dissipation holes are formed in the surface of the outer rotor casing.

Compared with the prior art, the utility model has the beneficial effects that:

1. this brushless motor outer rotor structure for unmanned aerial vehicle through setting up louvre and oblique flabellum, when using to the device, the outer rotor casing rotates, under the effect of flabellum to one side, and then takes out the air and into the inside heat dissipation that dispels of outer rotor casing, makes the air flow fast through the motor and discharge from the louvre to dispel the heat to the motor, under the effect of louvre and oblique flabellum, the people of being more convenient for dispel the heat to the motor.

2. This brushless motor outer rotor structure for unmanned aerial vehicle through setting up the copper condenser pipe, when using to the device, people go out the outlet end with condenser pipe one end and water pump and be connected, and the other end sets up in the water tank, and people carry the water in the water tank to the condenser pipe in through control switch control water pump operation and carry out the circulation flow to dispel the heat to the motor, under the effect of copper condenser pipe, further improved the thermal diffusivity of the device.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a front cross-sectional structural schematic view of the present invention;

in the figure: 1. a bottom case; 2. a fixing plate; 3. a groove; 4. a screw; 5. an inner stator core; 6. an excitation winding; 7. a rotating shaft; 8. an outer rotor casing; 9. a permanent magnet pole; 10. oblique fan blades; 11. a through hole; 12. a power line; 13. a copper condenser tube; 14. and (4) heat dissipation holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a brushless motor outer rotor structure for an unmanned aerial vehicle comprises a bottom shell 1 and an outer rotor casing 8, wherein the lower surface of the bottom shell 1 is provided with four grooves 3, the four grooves 3 are arranged on the lower surface of the bottom shell 1 in a pairwise symmetrical mode, screws 4 are arranged inside the grooves 3, a fixing plate 2 is fixedly connected inside the bottom shell 1 through the screws 4, an inner stator iron core 5 is fixedly connected to the upper surface of the fixing plate 2, an excitation winding 6 is arranged on the surface of the inner stator iron core 5, a bearing is fixedly connected to the upper surface of the fixing plate 2, a rotating shaft 7 penetrates through the surface of the outer rotor casing 8, a permanent magnet magnetic pole 9 is fixedly connected to the inner wall of the outer rotor casing 8, inclined fan blades 10 are arranged on the upper surface of the outer rotor casing 8, and when the brushless motor outer rotor casing 8 is used, air is pumped into the outer rotor casing 8 to dissipate heat under the action of the inclined fan blades 10, make the air flow fast through the motor and discharge from louvre 14 to dispel the heat to the motor, under louvre 14 and oblique flabellum 10's effect, the people of being more convenient for dispel the heat to the motor, flabellum 10 is total a plurality ofly to one side, all sets up at outer rotor casing 8 upper surface.

Concretely, outer rotor casing 8 has seted up through-hole 11, through-hole 11 is total two, and the symmetry sets up on outer rotor casing 8 surface, the inner stator iron core 5 surface inlays and is equipped with copper condenser pipe 13, through setting up copper condenser pipe 13, when using the device, people are connected condenser pipe 13 one end and water pump play water end, the other end sets up in the water tank, people carry the water in the water tank to condenser pipe 13 in through control switch control water pump operation and carry out circulation flow, thereby dispel the heat to the motor, under copper condenser pipe 13's effect, the thermal diffusivity of the device has further been improved, copper condenser pipe 13 wears to establish in through-hole 11.

Specifically, the surface of the excitation winding 6 is fixedly connected with a power line 12, the power line 12 is arranged in the through hole 11 in a penetrating manner, the outer rotor case 8 is provided with a plurality of heat dissipation holes 14, and the heat dissipation holes 14 are arranged on the surface of the outer rotor case 8.

The working principle of the utility model is as follows:

s1, firstly, connecting one end of the condensation pipe 13 with the water outlet end of the water pump, arranging the other end in the water tank, and connecting the power line 12 with a power supply;

s2, when the device operates, the outer rotor shell 8 rotates to drive the inclined fan blades 10 to rotate, and then air is conveyed into the outer rotor shell 8, so that the air flows rapidly through the motor and is discharged from the heat dissipation holes 14 for heat dissipation;

s3, people can control the operation of the water pump through the control switch to convey water in the water tank into the condensation pipe 13 to circularly flow so as to dissipate heat of the motor.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.

In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a brushless motor outer rotor structure for unmanned aerial vehicle, includes drain pan (1) and outer rotor casing (8), its characterized in that: the lower surface of the bottom shell (1) is provided with four grooves (3), the four grooves (3) are symmetrically arranged on the lower surface of the bottom shell (1) in pairs, screws (4) are arranged in the grooves (3), a fixed plate (2) is fixedly connected in the bottom shell (1) through the screws (4), an inner stator iron core (5) is fixedly connected on the upper surface of the fixed plate (2), an excitation winding (6) is arranged on the surface of the inner stator iron core (5), a bearing is fixedly connected on the upper surface of the fixed plate (2), a rotating shaft (7) is arranged on the surface of the outer rotor shell (8) in a penetrating manner, a permanent magnet magnetic pole (9) is fixedly connected on the inner wall of the outer rotor shell (8), inclined fan blades (10) are arranged on the upper surface of the outer rotor shell (8), and the number of the inclined fan blades (10) is multiple, are all arranged on the upper surface of the outer rotor casing (8).

2. The outer rotor structure of the brushless motor for the unmanned aerial vehicle according to claim 1, wherein: the outer rotor shell (8) is provided with two through holes (11), the through holes (11) are symmetrically formed in the surface of the outer rotor shell (8), a copper condensation pipe (13) is embedded in the surface of the inner stator iron core (5), and the copper condensation pipe (13) penetrates through the through holes (11).

3. The outer rotor structure of the brushless motor for the unmanned aerial vehicle according to claim 1, wherein: the surface of the excitation winding (6) is fixedly connected with a power line (12), the power line (12) is arranged in a through hole (11) in a penetrating mode, heat dissipation holes (14) are formed in the outer rotor casing (8), and the heat dissipation holes (14) are multiple in number and are formed in the surface of the outer rotor casing (8).