CN201517471U - Small-power wind-driven generator with double groups of fan blades - Google Patents

Abstract

The utility model relates to a small-power wind-driven generator with double groups of fan blades for providing power source for mobile communication base stations, repeater stations, microwave stations, LED streetlamps, landscape lamps and the like. The small-power wind-driven generator with double groups of fan blades comprises a permanent rotor casing installed on the upper portion of a machine support bar through a permanent magnet rotation shaft, wherein a coil rotor shaft, a coil and a permanent magnet are coaxially arranged in the rotor casing from inside to outside in turn, the upper end of the coil rotor shaft penetrates out of the rotor casing, the rod body on the upper end of the coil rotor shaft and the rod body of the permanent magnet rotation shaft are respectively provided with a group of fan blades which rotate reversely. When the wind-driven generator generates electric power, two groups of the fan blades which rotate reversely can drive the coil and the permanent magnet of the generator to reversely rotate, thereby improving the rotation speed of the generator by one time, and the small-power wind-driven generator has the advantages of reasonable structure, convenient assembly and installation, full utilization of wind power, high generation efficiency and the like.

Description

Two groups of fan blade low power wind driven generators

Technical field

The utility model content belongs to the power supply unit technical field, relates to a kind of two group fan blade low power wind driven generators that are used to mobile communication base station, repeater, Microwave Station, LED street lamp, landscape light etc. that electric power energy is provided.

Background technique

Low power wind driven generator substantially all is the generator that adopts single group bar shaped fan blade at present, though relatively simple for structure lower with cost, because wind-force can not get second use, under equal wind-force, its generating efficiency is very low, and starts wind-force at least more than 3 grades, can not make full use of wind-force.

The model utility content

The purpose of this utility model is the problem that prior art exists is solved, and then a kind of rational in infrastructure, assembling is easy for installation, wind power utilization is abundant and generating efficiency is high two fan blade low power wind driven generators of organizing are provided.

The technical solution that adopts is so for achieving the above object: the two group fan blade low power wind driven generators that provided have a permanent magnet rotary housing that is installed in body strut top by the permanent magnet rotating shaft, in rotor housing from lining (king line) to outside be coaxially arranged with coil rotor axle, coil and permanent magnet successively, stretch out outside the rotor housing upper end of coil rotor axle, is separately installed with one group of counter-rotational fan blade on the coil rotor shaft body of rod place, upper end and the permanent magnet rotating shaft body of rod.

Further technology implementation scheme of the present utility model comprises: the fan blade of installing at body of rod place, coil rotor shaft upper end is coil rotor hemisphere wind bowl blade or taper blade, and the fan blade of installing on the permanent magnet rotating shaft body of rod is permanent magnet rotary hemisphere wind bowl blade or taper blade; At coil output the three phase rectifier diode is housed.

Compared with prior art, technical characterstic of the present utility model and beneficial effect are as described below.

One, two groups of counter-rotational fan blades is installed on the blower fan, wherein one group of fan blade is fixed on the coil rotor axle of generator, another group fan blade is fixed on the axle of permanent magnet, therefore when the wind generating is arranged, counter-rotational two groups of fan blades drive generator coil and permanent magnet be backward rotation also, thereby the rotating speed of generator is doubled, so its generating efficiency has improved 1.7 times than single efficient of organizing the bar shaped fan blade generator.This product is mainly used in the small-sized autonomous power supply system of wind light mutual complementing and provides electric power energy for communication sites such as mobile communication base station, repeater, Microwave Stations, also can be separately wind energy be converted to the small-sized folk power supply system of electric energy in the area preferably for the wind-force weather conditions, and wind light mutual complementing lighting power supply system such as LED street lamp, landscape light provides electric power energy, and its generating efficiency is far longer than general small-sized wind power generator.

Two, the shape of two of this generator groups of blades adopts hemisphere wind bowl blade or taper blade, and the blowing area of its windward side is big, and the lee face resistance reduces, and the startup sensitivity of blower fan is improved greatly, just can start the blower fan generating when being a bit larger tham 1.5 grades of wind speed.

Three, the rotor brushless of blower fan, do not have wearing and tearing, contact reliably, simple in structure, need not safeguard.

Four, blower fan adopts the vertical shaft set-up mode, and promptly counter-rotational coil axes of blower fan and permanent magnet rotary axle and blower fan strut three are on the same vertical shaft, and the rotation of such two groups of blades is not limited by wind direction, and assembles simple, easy for installation.

Five, centrifugal speed reducer make that blower fan limits the fan blade rotating speed when strong wind can be too not fast so that the output power of blower fan and the output of voltage held stationary.

Six, the coil output in the blower fan is equipped with the power rectifier diode, blower fan can be transformed into Ac (AC) direct current (DC) output automatically so on the one hand, directly charge a battery, on the other hand when the little and blower fan VD of wind speed is lower than accumulator battery voltage, battery current can not poured in down a chimney to blower fan, to guarantee the reliable operation of blower fan and battery pack.

Description of drawings

Accompanying drawing is the structural representation of a specific embodiment of the utility model.

Each label is respectively in the accompanying drawing: 1-permanent magnet rotary housing, 2-bearing, 3-coil rotor axle, 4-coil, the 5-permanent magnet, 6-coil rotor hemisphere wind bowl blade, 7-permanent magnet rotary hemisphere wind bowl blade, 8-three phase rectifier diode, 9-body strut, the rotating shaft of 10-permanent magnet.

Embodiment

Below with reference to accompanying drawing content of the present utility model is described further, but actual fabrication structure of the present utility model is not limited in following embodiment.

Referring to accompanying drawing, two group fan blade low power wind driven generator described in the utility model has a permanent magnet rotary housing 1 that is installed in body strut 9 tops by permanentmagnet rotating shaft 10, the center is provided with coil rotor axle 3 in rotor housing 1, stretch out outside the rotor housing 1 upper end of this coil rotor axle 3, outside coil rotor shaft 3, be respectively equipped with coil 4 and permanent magnet 5, one group of coil rotor hemisphere wind bowl blade 6 is installed at body of rod place, coil rotor shaft 3 upper end, one group of relative coil rotor hemisphere wind bowl blade 6 counter-rotational permanent magnet rotary hemisphere wind bowl blade 7 is installed on permanentmagnet rotating shaft 10 bodies of rod, the three phase rectifier diode 8 that is used for Ac (AC) is transformed into direct current (DC) output is housed at coil 4 output terminals.

Claims (4)

1. organize the fan blade low power wind driven generator for one kind pair, it is characterized in that having one and be installed in permanent magnet rotary housing (1) on the body strut (9) by permanent magnet rotating shaft (10), in rotor housing (1) from the lining to outside be coaxially arranged with coil rotor axle (3), coil (4) and permanent magnet (5) successively, stretch out outside the rotor housing (1) upper end of coil rotor axle (3), is separately installed with one group of counter-rotational fan blade on coil rotor shaft (3) body of rod place, upper end and permanent magnet rotating shaft (10) body of rod.

2. two group fan blade low power wind driven generator according to claim 1, it is characterized in that the fan blade of installing at body of rod place, coil rotor shaft (3) upper end is a coil rotor hemisphere wind bowl blade (6), the fan blade of installing on permanent magnet rotating shaft (10) body of rod is a permanent magnet rotary hemisphere wind bowl blade (7).

3. two group fan blade low power wind driven generator according to claim 1, it is characterized in that the fan blade of installing at body of rod place, coil rotor shaft (3) upper end is a coil rotor taper blade, the fan blade of installing on permanent magnet rotating shaft (10) body of rod is a permanent magnet rotary taper blade.

4. two group fan blade low power wind driven generator according to claim 1 is characterized in that at coil (4) output terminal three phase rectifier diode (8) being housed.

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