CN211958885U

CN211958885U - Brushless motor heat abstractor

Info

Publication number: CN211958885U
Application number: CN201922163868.4U
Authority: CN
Inventors: 郑天彪; 陈兆斌; 郑新义
Original assignee: Zhuhai Shangfei Aviation Science And Technology Co ltd
Current assignee: Zhuhai Shangfei Aviation Science And Technology Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-11-17
Anticipated expiration: 2029-12-05

Abstract

The utility model discloses a brushless motor heat abstractor, including annular fixing base body and a plurality of spliced pole, annular fixing base body upper end is equipped with the annular groove, a plurality of louvres have been seted up on the annular groove, annular fixing base body lower extreme is equipped with a plurality of first fin, a plurality of spliced poles respectively with annular fixing base body lower extreme fixed connection. The annular groove is used for fixed brushless motor's stator, a plurality of spliced poles are used for connecting brushless motor's engine, the heat of stator can transmit the heat dissipation through a plurality of louvres, also can transmit for a plurality of first fin through annular fixing base body and dispel the heat, thereby fixing parts such as a plurality of spliced poles accessible screw, the unmanned aerial vehicle engine is connected to the bolt forms the ventiduct between annular fixing base body and unmanned aerial vehicle engine simultaneously, with the radiating efficiency who guarantees a plurality of first fin, effectual improvement brushless motor radiating effect, thereby improve brushless motor's working property and life.

Description

Brushless motor heat abstractor

Technical Field

The utility model relates to a brushless motor technical field, in particular to brushless motor heat abstractor.

Background

The brushless direct current motor is composed of a motor main body and a driver, and is a typical electromechanical integration product. Because the brushless DC motor is operated in a self-control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor which is started under the condition of heavy load under the condition of frequency conversion and speed regulation, and oscillation and step-out can not be generated when the load suddenly changes. The stator setting of current brushless motor is in the stator fixing base, in order to protect inside components and parts, the stator fixing base is generally relatively poor with the brushless motor rotor between the air permeability, brushless motor during operation, the stator can produce the heat, because the stator is fixed in the stator fixing base, and the heat dispersion of stator fixing base is relatively poor, this just leads to the unable heat dissipation of stator, brushless motor's heat dispersion is not good, along with brushless motor's operating time extension, the temperature between stator fixing base and the brushless motor casing is more and more high, will lead to brushless motor performance to descend, and damage easily.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a brushless motor heat abstractor and brushless motor.

In order to solve the technical problem, the utility model discloses a technical scheme does: the utility model provides a brushless motor heat abstractor, includes annular fixing base body and a plurality of spliced pole, annular fixing base body upper end is equipped with the annular groove, a plurality of louvres have been seted up on the annular groove, annular fixing base body lower extreme is equipped with a plurality of first fin, a plurality of spliced poles respectively with annular fixing base body lower extreme fixed connection.

Optionally, a plurality of second cooling fins are arranged on the inner side of the inner ring of the annular groove.

Optionally, the plurality of second cooling fins are annularly arranged on the inner side of the inner ring of the annular groove.

Optionally, a positioning groove is arranged on the outer side of the inner ring of the annular groove.

Optionally, the plurality of heat dissipation holes are annularly formed in the bottom side of the annular groove or the outer side of the annular groove.

Optionally, the first cooling fins are annularly arranged at the lower end of the annular fixed seat body.

Optionally, a plurality of fixing holes are formed in the lower end of the annular fixing seat body, and the connecting columns are fixedly connected with the lower end of the annular fixing seat body through the fixing holes respectively.

Optionally, the number of the fixing holes is four, and the number of the connecting columns is four

Adopt above-mentioned technical scheme, the annular groove is used for fixed brushless motor's stator, a plurality of spliced poles are used for connecting brushless motor's engine, the heat of stator can be through the transmission heat dissipation of a plurality of louvres, also can give a plurality of first fin through annular fixing base body transmission and dispel the heat, thereby a plurality of spliced pole accessible screws, thereby mounting such as bolt connects the unmanned aerial vehicle engine and forms the ventiduct between annular fixing base body and unmanned aerial vehicle engine, with the radiating efficiency who guarantees a plurality of first fin, effectual improvement brushless motor radiating effect, thereby improve brushless motor's working property and life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the heat dissipation device of the brushless motor of the present invention;

fig. 2 is a schematic structural view of the upper end of the annular fixing seat body in the heat dissipation device of the brushless motor of the present invention;

fig. 3 is a schematic structural view of the lower end of the annular fixing seat body in the heat dissipation device of the brushless motor of the present invention;

fig. 4 is a schematic structural diagram of a brushless motor.

In the figure, 1-annular fixed seat body, 2-connecting column, 3-annular groove, 4-radiating hole, 5-first radiating fin, 6-second radiating fin, 7-positioning groove, 8-fixing hole, 9-rotor, 10-shell and 11-engine.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-3, in an embodiment of the present invention, a heat dissipation device for a brushless motor is provided, which includes an annular fixing base body 1 and a plurality of connecting posts 2, an annular groove 3 is disposed on the upper end of the annular fixing base body 1, a plurality of heat dissipation holes 4 are disposed on the annular groove 3, a plurality of first heat dissipation fins 5 are disposed on the lower end of the annular fixing base body 1, and the plurality of connecting posts 2 are respectively fixedly connected to the lower end of the annular fixing base body 1. Specific, annular groove 3 is used for fixed brushless motor's stator, a plurality of spliced poles 2 are used for connecting brushless motor's engine 11, the heat of stator can be through 4 transmission heat dissipations of a plurality of louvres, also can give a plurality of first fin 5 through 1 transmission of annular fixing base body and dispel the heat, thereby the unmanned aerial vehicle engine is connected to mountings such as a plurality of spliced poles 2 accessible screws simultaneously, thereby form the ventiduct between annular fixing base body 1 and unmanned aerial vehicle engine, with the radiating efficiency who guarantees a plurality of first fin 5, effectual improvement brushless motor radiating effect, thereby improve brushless motor's working property and life.

In this embodiment, a plurality of second fins 6 are provided inside the inner ring of the annular groove 3. Specifically, transmit for a plurality of second fin 6 through annular fixing base body 1 to further supplementary improvement brushless motor radiating effect.

In the present embodiment, a plurality of second fins 6 are annularly arranged inside the inner ring of the annular groove 3. It is understood that the number of the second heat dissipating fins 6 may be two or other numbers, and is annularly disposed inside the inner ring of the annular groove 3 to uniformly dissipate heat, which is not particularly limited herein.

In this embodiment, the outer side of the inner ring of the annular groove 3 is provided with a positioning groove 7, the positioning groove 7 is used for positioning and fixing the stator, and the stator can be conveniently and fixedly installed through the positioning groove 7.

In this embodiment, the plurality of heat dissipation holes 4 are annularly formed at the bottom side of the annular groove 3 or at the outer side of the annular groove 3. It is understood that the opening at the bottom side of the annular groove 3 or at the outer side of the annular groove 3 is for communication with the outside for heat dissipation. Meanwhile, the ring-shaped opening can ensure uniform heat dissipation.

In this embodiment, the first cooling fins 5 are annularly disposed at the lower end of the annular fixing base body 1. It is understood that the number of the first heat radiation fins 5 may be two or other numbers, and are annularly disposed inside the inner ring of the annular groove 3 to uniformly radiate heat, which is not particularly limited herein.

In this embodiment, 1 lower extreme of annular fixing base body is equipped with a plurality of fixed orificess 8, a plurality of spliced poles 2 respectively through a plurality of fixed orificess 8 with 1 lower extreme fixed connection of annular fixing base body.

As shown in fig. 4, a brushless motor including the heat sink for a brushless motor of the above embodiment is provided, the brushless motor includes a rotor 9, a housing 10, a stator, and a motor 11, the housing is connected with the rotor 9 and driven by the motor 11 to rotate, and the stator is disposed in the annular fixing base body 1 and fixedly connected with the motor 11 through the plurality of connecting posts 2.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a brushless motor heat abstractor which characterized in that: including annular fixing base body (1) and a plurality of spliced pole (2), annular fixing base body (1) upper end is equipped with annular groove (3), a plurality of louvres (4) have been seted up on annular groove (3), annular fixing base body (1) lower extreme is equipped with a plurality of first fin (5), a plurality of spliced poles (2) respectively with annular fixing base body (1) lower extreme fixed connection.

2. The heat sink for brushless motor according to claim 1, wherein: and a plurality of second cooling fins (6) are arranged on the inner side of the inner ring of the annular groove (3).

3. The heat sink for brushless motor according to claim 2, wherein: the second cooling fins (6) are annularly arranged on the inner side of the inner ring of the annular groove (3).

4. The heat sink for brushless motor according to claim 1, wherein: and a positioning groove (7) is arranged on the outer side of the inner ring of the annular groove (3).

5. The heat sink for brushless motor according to claim 1, wherein: the heat dissipation holes (4) are annularly formed in the bottom side of the annular groove (3) or the outer side of the annular groove (3).

6. The heat sink for brushless motor according to claim 1, wherein: the first cooling fins (5) are annularly arranged at the lower end of the annular fixed seat body (1).

7. The heat sink for brushless motor according to claim 1, wherein: annular fixing base body (1) lower extreme is equipped with a plurality of fixed orificess (8), a plurality of spliced poles (2) respectively through a plurality of fixed orificess (8) with annular fixing base body (1) lower extreme fixed connection.

8. The heat sink for brushless motor of claim 7, wherein: the number of the fixing holes (8) is four, and the number of the connecting columns (2) is four.