CN201531378U

CN201531378U - Windmill structure of wind-mill generator

Info

Publication number: CN201531378U
Application number: CN2009202181720U
Authority: CN
Inventors: 蔡树源
Original assignee: SUPERB ELECTRIC (SUZHOU) Co Ltd
Current assignee: SUPERB ELECTRIC (SUZHOU) Co Ltd
Priority date: 2009-10-20
Filing date: 2009-10-20
Publication date: 2010-07-21
Anticipated expiration: 2019-10-20

Abstract

The utility model discloses a windmill structure of a wind-mill generator, which mainly comprises an impeller and unit vanes arranged on the periphery of the impeller in groups, wherein the impeller has a disc structure, and the periphery of the impeller is provided with a joint edge with structural thickness less than that of the central part of the impeller; the unit vanes are arranged on the joint edge in groups; the end part of the combined unit vanes and the joint edge is provided with a joint groove; the joint edge is embedded in the joint groove; and the unit vanes are fixed on the joint edge by a plurality of fixing elements. Therefore, the wind area of the windmill structure is increased, the utilization rate of wind power thereof is improved, and simultaneously, the wind mill can stably rotate with less swaying, and the rotation is more stable.

Description

The windmill structure of wind-driven generator

Technical field

The utility model is relevant with the windmill structure of wind-driven generator, more detailed it, the utility model proposes the compound mode of the impeller and the blade of new kenel, and windmill structure of the present utility model can increase the wind energy utilization of this wind-driven generator.

Background technique

Wind-power electricity generation briefly is by the wind energy rotor blade, and wind energy is converted to mechanical energy, and utilizes generator that mechanical energy is converted to electric energy, utilizes storage battery with energy storage again.So wind power plant has mainly comprised windmill and generator two major parts.

Wind-driven generator is mainly used wind energy power, so windmill is the wind-engaging main body, so the design of windmill and wind energy are used association is closely arranged.Windmill as shown in Figure 1 is to connect plural fan blade 2 with an impeller 1 haply, and fan blade 2 is long banding pattern cloverleaf, the ratio great disparity of the diameter of the length of fan blade 2 and impeller 1, and the area of impeller 1 only accounts for the minimum some of windmill main body.Yet the swept area of windmill mainly is made of fan blade 2, so will increase the ability of fan blade 2 acquisition wind energies, known techniques is to be main means to increase fan blade 2 length.But according to structural mechanics, fan blade 2 its structural strengths of long banding pattern are also unstable, the phenomenon that bends easily during wind-engaging, and the situation that wind-engaging rocks is comparatively serious, causes the unsettled situation of wind cutting.In addition, in the swept area of above-mentioned windmill, the space between three fan blades has accounted for most ratios, and most wind can pass and not act on the fan blade from the space between the fan blade.

Summary of the invention

The purpose of this utility model is, proposes a kind of ability of promoting fan blade acquisition wind energy, promotes windmill structure intensity, promotes the windmill structure of the wind-driven generator of wind energy utilization.

A kind of wind-driven generator windmill structure, the unit blade that mainly comprises an impeller and be mounted on this impeller periphery; Described impeller is a disc structure, and its outer periphery have the trip edge of a structural thickness less than this impeller middle section structural thickness, and establish for above-mentioned unit vane group this trip edge; The end of this unit blade and this trip edge combination is provided with an engaging groove, and this trip edge embeds in this engaging groove, and with the plurality of fixed element with this unit vanes fixed in this trip edge.

In view of the above, the utility model windmill structure can make blowing area increase, and the wind energy utilization of windmill structure is promoted, and the rotation that windmill can be stable simultaneously reduces the situation of rocking, and has the enhancement effect of steady running.

For ease of explanation the utility model represented central idea in above-mentioned novel content one hurdle, express with specific embodiment now.Various different objects system is described in the ratio that is suitable for illustrating, size, amount of deformation or displacement amount among the embodiment, but not is drawn in the ratio of actual components, close chat earlier bright.And in the following description, similar elements is to represent with identical numbering.

Description of drawings

Fig. 1 is the front view of known windmill structure.

Fig. 2 is the External view of the utility model windmill structure.

Fig. 3 is the sectional perspective exploded view of the utility model windmill structure, the situation that the root of description unit blade combines with the trip edge of impeller.

Fig. 4 is the part sectioned view of the utility model windmill structure, the situation that the root of description unit blade combines with the trip edge of impeller.

Fig. 5 is the combination of side view of the utility model windmill structure.

Embodiment

As Fig. 2 to Fig. 5, the windmill structure 20 of the utility model wind-driven generator mainly comprises an impeller 21 and is mounted on several unit blades 22 on this impeller 21.This impeller 21 is disc structures, and its circumferential location has the trip edge 23 of a structural thickness less than these impeller 21 center portion structural thicknesses, and establish for 22 groups for above-mentioned unit blade this trip edge 23.The root 221 of this unit blade 22 is provided with an engaging groove 24, and this trip edge 23 embeds in this engaging groove 24.The root 221 of this trip edge 23 and this unit blade 22 is provided with several holes 231 in corresponding position, 222, several fixed elements 25 are that the front-back from this root 221 divides other lock to organize in this hole 231,222, thereby this unit blade 22 is fixed in this trip edge 23.

Above-mentioned windmill structure 20 has six unit blades 22.The area of a circle radius that windmill scans is that the sum total of these impeller 21 radiuses and a unit blade 22 length constitutes.By as can be known graphic, impeller 21 radiuses and unit blade 22 length are occupied this separately and are scanned the suitable ratio of area of a circle radius, preferably, the diameter of this impeller 21 account at least this unit blade 22 length 1/2.The unit blade 22 of the utility model windmill structure 20 is the wide plate formula, the area wind-engaging of each unit blade 22 to enlarge, and blowing area increases, and the wind energy utilization of windmill structure 20 is promoted.And unit blade 22 is to be combined in this impeller 21 peripheries with six leaves, cooperate the wide plate area with leafy kenel, make and keep a suitable distance between each unit blade 22, this is apart from supplying air flows, this distance is little than the described cloverleaf windmill structure of prior art, and most wind-force is acted on this impeller 21 and these unit blades 22, passes from this distance and the minimizing of unemployed wind energy, so increased wind energy utilization, realized the run up purpose of windmill of low wind speed.

This impeller 21 is center of mass of the utility model windmill structure, and when the windmill structure wind-engaging rotated, the play stably function of center of gravity of this impeller made the rotation that windmill can be stable, reduces the situation of rocking, and relative rotation noise can significantly reduce.And according to structural mechanics, the unit blade 22 of wide plate type can show preferable strong structure intensity, and wind-engaging is not flexible or rock wind cutting that therefore can be stable.Based on this, the utility model windmill has the impeller 21 of stable center of gravity and the unit blade of stable wind cutting, therefore has the enhancement effect of steady running.

Though the utility model is to do explanation with a most preferred embodiment in graphic, is skillful in this skill person and can makes various multi-form changes not breaking away under the utility model spirit and the category.Above illustrated embodiment is only in order to explanation the utility model, and is non-in order to limit scope of the present utility model.Such as do not disobey various modifications or the variation that the utility model spirit is engaged in, all belong to the utility model claim.

Claims

1. the windmill structure of a wind-driven generator is characterized in that:

One is the impeller of disc type structure, and the circumferential location of this impeller has the trip edge of a structural thickness less than its center portion structural thickness;

Several unit blades, each unit blade has an engaging groove in its root, and this trip edge embeds in this engaging groove;

Several holes are located at the root of this unit blade and the corresponding position of this trip edge respectively; And

Several respectively lock organize fixed element in these holes.

2. the windmill structure of wind-driven generator according to claim 1 is characterized in that: several fixed elements are that the front-back from this root divides other lock to organize this hole.