CN109245418A

CN109245418A - A kind of adjustable brushless motor of more rotors

Info

Publication number: CN109245418A
Application number: CN201811137055.1A
Authority: CN
Inventors: 王从玖
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-19
Filing date: 2018-09-19
Publication date: 2019-01-18

Abstract

A multi-rotor adjustable-speed brushless motor belongs to the technical field of brushless motors. It includes a brushless motor and a fan blade. The brushless motor is composed of a stator and a rotor. The rotor is composed of a casing and a rotating shaft. It is characterized in that the stator can move back and forth in the rotor along the rotating shaft. The rear end is provided with a telescopic mechanism that pushes the stator to move back and forth in the rotor along the rotating shaft. The telescopic mechanism includes a telescopic rod and a telescopic motor that controls the back and forth movement of the telescopic rod. The design of the telescopic mechanism of the present invention stably solves the problem that the rotor moves forward and backward along the stator during the rotation process. When the distance between the rotor and the stator increases, the main magnetic flux of the air gap of the brushless motor decreases, so as to improve the brushless motor. The purpose of the motor speed.

Description

A kind of adjustable brushless motor of more rotors

Technical field

The invention belongs to brushless motor technical fields, and in particular to a kind of adjustable brushless motor of more rotors.

Background technique

Brushless motor is a kind of carry-on flying power, and the speed of vehicle flight speeds is turning for brushless motor Fast speed, revolving speed is bigger, and its flight motive force is bigger, and flying speed also will be faster, and the revolving speed of brushless electricity is fast on existing aircraft Slowly it is controlled entirely by adjusting the size of voltage and current, when one timing of voltage and current value, brushless motor speed is basically reached surely Being scheduled on can not be adjusted, and therefore, in one timing of voltage and current, how to improve the revolving speed of brushless motor is then those skilled in the art Urgent problem to be solved.

Summary of the invention

The invention aims to provide a kind of more rotor adjustable speed brushless motors, it periodically leads in voltage and current value one The distance between stator and rotor are overregulated to reach the revolving speed for promoting rotor.

Above-mentioned goal of the invention is achieved through the following technical solutions, and a kind of adjustable brushless motor of more rotors, it is wrapped The flabellum for including brushless motor and connecting with brushless motor, the brushless motor are made of stator and rotor, and the stator is set In the inside of rotor, the rotor is by that can surround the shell of stator rotation and turn through what shell was fixedly connected with housing center Axis composition, the flabellum are fixedly connected with the front end of shaft, are characterized by: the stator can be along shaft in rotor It moves forward and backward, the rear end of the stator is equipped with the telescoping mechanism for pushing stator to move forward and backward in rotor along shaft, described Telescoping mechanism includes the telescope motor that telescopic rod and control telescopic rod move forward and backward；The telescope motor is by stator A and is located at Rotor B composition inside stator A, the end of the rotor B are fixedly connected with the end of stator A by bearing, the rotor B Inner hollow, inner sidewall are equipped with screw thread；The telescopic rod is cylindrical in shape, and the rear end of telescopic rod and the inner sidewall of rotor B revolve It connects, the front end outer side face of telescopic rod is equipped with the baffle for preventing telescopic rod from excessively screwing in rotor B；The baffle and stator is solid Fixed connection；The inside both ends of the telescopic rod are equipped with bearing A, and the bearing A can slide back and forth along shaft；The telescopic rod Lateral wall is equipped with guide groove, is equipped with the sliding block for preventing telescopic rod from swinging in rotary extension in guide groove；The cunning Block one end and guide groove connect, and the other end is fixedly connected with the inner sidewall of stator A.

Preferably, being equipped with telescoping mechanism protective cover on the outside of the telescoping mechanism, the telescoping mechanism protective cover is Telescopic telescoping mechanism protective cover, the telescoping mechanism protective cover are fixedly connected with the end of stator A.

Preferably, the telescoping mechanism protective cover is equipped with the hole being pierced by for conducting wire.

Action process of the invention is as follows: when the rotor B rotation in telescope motor, rotor B drives telescopic rod along spiral shell Line moves forward and backward, and the baffle because being located at telescopic rod front end is fixedly connected with stator, so also driving when telescopic rod moves forward and backward Stator moves forward and backward in rotor along shaft；The telescopic machine being connect when telescopic rod is moved forward and backward with telescopic rod front end baffle Structure protective cover also follows telescopic rod elastic simultaneously.

The beneficial effects of the present invention are: the design stability of telescoping mechanism solves rotor during rotation along stator The problem of moving forward and backward is reduced, while the main magnetic of air gap when the distance between rotor and stator increase by the magnetic flux of stator It is logical and then to reduce, n=(U-RI)/Ce φ is obtained according to the speed formula of brushless motor, wherein U is voltage；R is resistance；I is Electric current；φ is the air gap main flux of brushless motor；Ce is constant, and when U, R, I are definite value, φ reduces, the speed of brushless motor Increase.

Detailed description of the invention

Fig. 1: structural schematic diagram of the invention.

Fig. 2: decomposition diagram of the invention.

Fig. 3: Fig. 1 cross-sectional view.

The structural schematic diagram that stator moves backward in Fig. 4: Fig. 3.

In Fig. 1-4,1- brushless motor, 2- flabellum, 3- stator, 4- rotor, 5- shell, 6- shaft, 7- telescoping mechanism, 8- Telescopic rod, 9- telescope motor, 10- stator A, 11- rotor B, 12- bearing, 13- screw thread, 14- bearing A, 15- guide groove, 16- are sliding Block, 17- telescoping mechanism protective cover, the hole 18-, 19- baffle.

Specific embodiment

Represented by by Fig. 1-4 is one embodiment of the invention, it includes brushless motor 1 and connect with brushless motor 1 Flabellum 2, the brushless motor 1 are made of stator 3 and rotor 4, and the stator 3 is located at the inside of rotor 4, the rotor 4 by that can surround shell 5 that stator 4 rotates and form through the shaft 6 that shell 5 is fixedly connected with 5 center of shell, the flabellum 2 are fixedly connected with the front end of shaft 6；The stator 3 can move forward and backward in rotor 4 along shaft 6, after the stator 3 End is equipped with the telescoping mechanism 7 for pushing stator 3 to move forward and backward in rotor 4 along shaft 6, and the telescoping mechanism 7 includes flexible The telescope motor 9 that bar 8 and control telescopic rod 8 move forward and backward；The telescope motor 9 is by stator A10 and is located inside stator A10 Rotor B11 composition, the end of the rotor B11 passes through bearing 12 with the end of stator A10 and is fixedly connected, the rotor B11 Inner hollow, inner sidewall are equipped with screw thread 13；The telescopic rod 8 is cylindrical in shape, the rear end of telescopic rod 8 and the inside of rotor B11 Wall is screwed on, and the front end outer side face of telescopic rod 8 is equipped with the baffle 19 for preventing telescopic rod 8 from excessively screwing in rotor B11；The gear Plate 19 is fixedly connected with stator 3；The inside both ends of the telescopic rod 8 are equipped with bearing A14, and the bearing A14 can be along shaft 6 It slides back and forth；The lateral wall of the telescopic rod 8 is equipped with guide groove 15, and being equipped in guide groove 15 prevents telescopic rod 8 from stretching in rotation The sliding block 16 to swing when contracting；Described 16 one end of sliding block and guide groove 15 connects, the inside of the other end and stator A10 Wall is fixedly connected.

Telescoping mechanism protective cover 17 is equipped on the outside of the telescoping mechanism 7, the telescoping mechanism protective cover 17 is that can stretch The rear end of the telescoping mechanism protective cover 17 of contracting, the telescoping mechanism protective cover 17 is fixedly connected with the end of stator A10, is stretched The front end of device protection cover 17 is fixedly connected with baffle 19.

The telescoping mechanism protective cover 17 is equipped with the hole 18 being pierced by for conducting wire.

Claims

1. A multi-rotor adjustable brushless motor, comprising a brushless motor (1) and a fan blade (2) connected with the brushless motor (1), wherein the brushless motor (1) is formed by a stator (3) and the rotor (4), the stator (3) is arranged inside the rotor (4), and the rotor (4) is composed of a casing (5) that can rotate around the stator (4) and a casing (5) passing through the casing (5). The outer casing (5) consists of a rotating shaft (6) that is fixedly connected in the center, and the fan blade (2) is fixedly connected to the front end of the rotating shaft (6). It moves back and forth in the rotor (4), and the rear end of the stator (3) is provided with a telescopic mechanism (7) that pushes the stator (3) to move back and forth in the rotor (4) along the rotating shaft (6). The mechanism (7) includes a telescopic rod (8) and a telescopic motor (9) for controlling the front and rear movement of the telescopic rod (8); the telescopic motor (9) is composed of a stator A (10) and a A rotor B (11) is formed, the end of the rotor B (11) is fixedly connected with the end of the stator A (10) through a bearing (12), the interior of the rotor B (11) is hollow, and the inner wall is provided with threads (13). ); the telescopic rod (8) is cylindrical, the rear end of the telescopic rod (8) is screwed to the inner side wall of the rotor B (11), and the outer surface of the front end of the telescopic rod (8) is provided with an anti-telescopic rod ( 8) The baffle plate (19) that is over-screwed into the rotor B (11); the baffle plate (19) is fixedly connected with the stator (3); the inner ends of the telescopic rod (8) are provided with bearings A ( 14), the bearing A (14) can slide back and forth along the rotating shaft (6); the outer side wall of the telescopic rod (8) is provided with a guide groove (15), and the guide groove (15) is provided with an anti-telescopic rod. (8) A slider (16) that swings left and right during rotation and expansion; one end of the slider (16) is in contact with the guide groove (15), and the other end is fixedly connected to the inner wall of the stator A (10).

2. A multi-rotor adjustable brushless motor according to claim 1, characterized in that: said telescopic mechanism (7) is provided with a telescopic mechanism protective cover (17) outside, said telescopic mechanism protective cover ( 17) is a telescopic mechanism protective cover (17), the rear end of the telescopic mechanism protective cover (17) is fixedly connected with the end of the stator A (10), and the front end of the telescopic mechanism protective cover (17) is connected to the baffle plate (19) Fixed connection.

3 . The adjustable multi-rotor brushless motor according to claim 2 , wherein the protective cover ( 17 ) of the telescopic mechanism is provided with a hole ( 18 ) for the wire to pass through. 4 .