CN201159201Y

CN201159201Y - Wind blade structure of outdoor set of air-conditioner

Info

Publication number: CN201159201Y
Application number: CNU2008200036573U
Authority: CN
Inventors: 胡晓初
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2008-02-02
Filing date: 2008-02-02
Publication date: 2008-12-03
Anticipated expiration: 2018-02-02

Abstract

The utility model provides a fan blade structure, which comprises a plurality of fan blades, a water retaining ring and connecting portions which connect the fan blades with the water retaining ring, wherein the water retaining ring is formed by an inner ring and an outer ring, and the fan blades are connected with the inner ring of the water retaining ring via the connecting portions. The fan blade structure is characterized in that the inner ring is radially narrower gradually from an optional connecting portion along the circumferential direction to two sides. According to the structure, the fan blade with fine performance can be injection-molded, thereby largely reducing broken problems.

Description

The blade structure of air conditioner outdoor machine

Technical field

The utility model relates to air conditioner outdoor machine, relates in particular to the blade structure of this outdoor unit.

Background technique

Existing window air conditioner outdoor unit all has blade structure as shown in Figure 1, and this blade structure mainly is made of blade 1, hydrosphere 2 and their joint 3.As shown in Figure 1, described hydrosphere 2 is formed (see figure 2) by outer ring 7 and inner ring 6 that cross section is the T type, and a plurality of blades 1 are connected to the inner ring of hydrosphere 2 by the joint 3 of shaped like narrow.The common integrated injection molding of this blade structure, this will form weld mark in the place, about neutral position between two joints 3 on the hydrosphere 2, and this weld mark has that stress is concentrated and the defective of easy-rupturing, and this is that the particularity of integrated injection molding technology causes.As shown in Figure 3, in injection moulding production, part transportation, whole machine installation, product using process, be prone to whiting and phenomenon of rupture at the weld mark place, and in comparing rugged environment, be subjected to the thermal shock of the big and poly-cold heat build-up of the local temperature difference to influence the phenomenon that also can occur rupturing at the weld mark place.

The model utility content

In order to address the above problem, the utility model proposes a kind of novel blade structure, this blade structure can improve the weld mark problem that Shooting Technique is brought, and strengthens the impact resistance and the intensity of blade structure.

For addressing the above problem, the utility model proposes a kind of like this blade structure, it is a kind of blade structure of air conditioner outdoor machine, comprise a plurality of fan blades, hydrosphere and the joint that connects fan blade and hydrosphere, wherein, described hydrosphere is made of inner ring and outer ring, and described fan blade is connected to the inner ring of described hydrosphere by described joint, described inner ring from any joint along circumferentially radially narrowing down gradually to both sides.

Preferably, described inner ring is arch between two adjacent joints.

More preferably, the middle part between two adjacent joints, it is zero that described inner ring radially narrows to form width gradually.

Also preferably, the position of described hydrosphere in the middle of two joints has radially inwardly outstanding reinforcing part.

By above-mentioned setting, no matter from colloidal sol flow away from, still, can both realize good effect from the analysis aspect of power.At first, the hydrosphere of molding and forming itself just is difficult for producing fracture, secondly, considers from stressed aspect, can cushion big impact force or pressure.

Description of drawings

Accompanying drawing constitutes the part of this specification, is used to help further understand the utility model.This accompanying drawing illustrates a concrete embodiment who uses of the present utility model, and is used for illustrating principle of the present utility model with specification.Identical in the accompanying drawings parts are represented with identical label.Wherein:

Fig. 1 is the shaft side figure of blade structure of the prior art;

Fig. 2 is the plan view of blade structure of the prior art, the A-A sectional view of cross section of expression hydrosphere and the enlarged view of the local B among Fig. 1;

Fig. 3 is the enlarged diagram that fracture takes place at the weld mark place shown in Fig. 1;

Fig. 4 is the shaft side figure according to an embodiment's of the present utility model blade structure;

Fig. 5 is the plan view according to an embodiment's of the present utility model blade structure, and the enlarged view of the arch structure that are in two hydrospheres between the blade and the hydrosphere enlarged view at the cross section at C-C place is shown;

Fig. 6 is the enlarged view that specifically illustrates arch structure shown in Figure 5;

Fig. 7 is the injection moulding flow of sol flow analysis figure of blade structure shown in Figure 4;

Fig. 8 is the schematic representation of fetching water of the hydrosphere of blade structure shown in Figure 4;

Fig. 9 is the stressed schematic representation of the hydrosphere in the fan blade mechanism of the prior art;

Figure 10 is the stressed schematic representation of the hydrosphere of blade structure shown in Figure 4;

Figure 11 is the stressed comparative analysis figure of the hydrosphere of the hydrosphere of blade structure of the prior art and blade structure shown in Figure 4.

Embodiment

With reference to the accompanying drawings, concrete real-time mode of the present utility model is elaborated.

Shown in Fig. 4,5,6, hydrosphere 2, the inner ring between two adjacent vanes 6 carries out progressively material reducing from the wide L of existing equal refining, the width of inner ring reaches 0 when it reduces to the centre (P point as shown in Figure 6) of this part inner ring.As shown in Figure 6, promptly from blade and hydrosphere joint (N point), the horizontal width L of inner ring is deducted plastics step by step, equably, when material reducing to the middle when (P point) width be 0 (L has not almost had in as Fig. 5), and then just add plastics step by step, equably by 0 beginning, when being fed to next blade and hydrosphere joint (N '), the inner ring horizontal width returns to L again.In this process, just make the inner ring of hydrosphere form arch structure 4.And the curvature of the curve of this arch is the horizontal width L value that depends on existing hydrosphere inner ring.The L value is big more, the curvature of its ogive curve also big more (as shown in Figure 6).

Adopt said structure to bring many advantages, make a concrete analysis of as follows:

One, consider from injection moulding flow of sol aspect:

As shown in Figure 7, dotted arrow is represented the plastic flow circuit, flowability from plastics, arch hydrosphere structure makes smooth and easy, plastic flow face of the step of flowing more leniently narrow down and make the overall flow enhancing, flowing velocity is more and more faster, can reach the welding of heat material at original weld mark place basically, thereby make the moment of fusion more abundant, the effect of welding is very good like this, occurs the easy-rupturing phenomenon that causes owing to welding in the prior art hardly.

Based on the principle that above-mentioned colloidal sol flows, the hydrosphere part of the utility model between two blades can adopt other structure, as long as the speed that can make plastic flow begins to accelerate gradually to reach welding when the heat material from joint.So just may realize abundant welding, and can not produce because the easy-rupturing phenomenon that welding itself brings.

Preferably, increase a reinforcing part 8 (as shown in Figure 6) at posetionof weld, its size, size are relevant with the size of hydrosphere, usually with transition with connect suitable arch shape and get final product.Its length the most very much not exceeds 25mm, and thickness should be greater than 5mm with exceeding along hydrosphere outer ring inner side surface.Make plastics moments in melting process obtain enough spaces and go welding, enlarged portion is shown in the reinforcing part position and intersects molten mutually among plastics such as the figure.Thereby improve weld mark, obtain better melten gel effect.

Two, illustrate from angle of mechanics:

Shown in Fig. 9,10,11: the P point all has a counteractive resistance F after stressed, whole resistance F (as F1, F2 among the figure) is decomposed to both sides, and the power of always a kind of tangentially direction of decomposing force forms an angle (as α, β among the figure) with being subjected to force direction.Fig. 9 is the force analysis of existing structure.Arch structure elasticity among Figure 10 is good, and the plastic deformation after hydrosphere is stressed is stronger.Take all factors into consideration, two kinds of suffered power of structure are decomposed to both sides, the angle of decomposing force direction and drag direction is influenced by extent of elasticity, and the formed angle of arch bridge type structure hydrosphere is obviously littler than the existing structure.As shown in figure 12, angle α＞β, under the situation the same in stressed size, that direction is consistent, tension force F1, F2 size, the direction of its reaction resistance F being decomposed the past both sides that obtain all are different.At first, the direction of tension force is consistent with the tangential direction of stress deformation back curve all the time.And the size of power depends on tangential and stressed reciprocal angle, and angle is big more, and tension force is big more, the easy more fracture of hydrosphere weld P point.To recently, arch structure improve the suffered impact of external force from force analysis, disperse the stress localization effects of self advanced more a lot of than existing structure, make defectives such as the stressed back of posetionof weld is difficult for whitening, distortion, the more difficult phenomenon of rupture that occurs.

As shown in Figure 8, in the hydrosphere working procedure, the hydrosphere rotation is more flexible, and the area that the arch cambered surface makes hydrosphere inner ring side surface contact with water increases, and the water dumping amount in the unit time rises.Because the feature of arch makes the water dumping process have strong rhythm, allows the weight of fan blade own be lighter than existing structure slightly simultaneously, the energy consumption to motor in the rotary course reduces.Whole result shows that arch hydrosphere structure is not also strengthened in the infringement to some extent than existing structure in the effect of fetching water.

Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

List of reference numerals:

1 blade

2 hydrospheres

3 connecting portions

4 domes

5 posetionof welds

6 inner rings

7 outer rings

8 ribs

9 shells

10 condensed waters

11 hydrospheres and condensed water contact area

P _EnterEnter the glue position

Claims

1. the blade structure of an air conditioner outdoor machine, comprise a plurality of fan blades, hydrosphere and the joint that connects fan blade and hydrosphere, wherein, described hydrosphere is made of inner ring and outer ring, described fan blade is connected to the inner ring of described hydrosphere by described joint, it is characterized in that described inner ring circumferentially radially narrows down to both sides gradually from any joint edge.

2. blade structure according to claim 1 is characterized in that described inner ring is arch between two adjacent joints.

3. blade structure according to claim 1 and 2 is characterized in that, the middle part between two adjacent joints, and it is zero that described inner ring radially narrows to form width gradually.

4. blade structure according to claim 3 is characterized in that, the position of described hydrosphere in the middle of two joints has radially inwardly outstanding reinforcing part.