CN100362245C - Wind turbine device and manufacture thereof - Google Patents

Abstract

To provide a turbofan capable of stabilizing quality while improving productivity. In the turbofan 1, a blade 6 and a suction ring 7 are connected by a fitting part 8 and a receiving part A. By providing a notch 9 to the fitting part 8 of the blade 6, the suction ring 7 can be easily mounted in the blade 6 up to a certain extent even if the fitting part 8 and the rib 10 are not in parallel. The stress of the fitting part 8 and the rib 10 can be also eased. Since the induction part 14 is provided to the blade side of the rib 10 in the suction ring 7, the suction ring 7 can be easily mounted in the blade 6. The stress onto the base 13 of the fitting part 8 and the base 12 of the rib 10 can be reduced, thereby obtaining the turbofan capable of stabilizing quality while improving productivity. (C)2006,JPO&NCIPI.

Description

Turbofan and manufacture method thereof

Technical field

The present invention relates to the method for a kind of turbofan of in such as air conditioner, using and the described turbofan of manufacturing.

Background technique

Fig. 6 has described to be installed to the gate cell 16 of the air conditioner in the ceiling board.As shown in the figure, gate cell 16 has air-supply loop or air circulation path, it comprises air inlet part 17, air filter (not shown), heat exchanger (not shown), turbofan (not shown) and a plurality of air outlet slit part 18, and air is successively by above-mentioned each parts.Turbofan is connected on the motor (not shown) with being driven.

Fig. 7 has described conventional turbofan 1, and it comprises: be positioned at the propeller boss 2 at turbofan 1 center, be used for holding securely therein the rotatingshaft of motor; And mainboard 5, it has dihedral tapered segment 3 and flat substantially annular slab 4, and described tapered segment 3 is from propeller boss 2 oblique outer extensions, so that the covering motor; Described annular slab 4 is along stretching out with the axial vertical direction of propeller boss 2 outer periphery from tapering part 3.Turbofan 1 also comprises a plurality of blades 6 and suction ring 7, and described a plurality of blades 6 are arranged on the annular slab 4 of mainboard 5 at certain intervals, and described suction ring 7 is fixed on the free end of a plurality of blades 6.

Mainboard 5 and a plurality of blade 6 form each other by injection molding, and suction ring 7 forms separately and by ultra-sonic welded or bondingly be fixed to (for example, referring to Japanese publication publication NO.7-103184) on a plurality of blades 6.

The method of this manufacturing turbofan 1 was both time-consuming, and cost is high again.

Summary of the invention

The present invention is developed to overcome above-mentioned shortcoming.

Therefore, the purpose of this invention is to provide a kind of cheap turbofan, it can keep its performance when boosting productivity.

In order to realize above-mentioned and other purpose, according to turbofan of the present invention, comprising: mainboard; The suction ring, it is installed on the mainboard, and is relative with mainboard, and described suction ring has a plurality of receiver portions; With a plurality of blades, described a plurality of blades and described mainboard are integrally formed, and are inserted between mainboard and the suction ring, and each in a plurality of blades has the anastomosis part, engages with one of a plurality of receiver portions, is fixed on a plurality of blades so that will aspirate ring.Wherein said anastomosis part has free end and from the laterally projecting protuberance of free end, so that protuberance can engage with one of a plurality of receiver portions, and each in a plurality of receiver portions comprises a pair of floor, and this is to having groove between the floor, and the anastomosis part is inserted in the described groove.

This structure is convenient to make the relative blade of suction ring and is located and fix.

Protuberance plays the effect that prevents that the anastomosis part from removing from one of a plurality of receiver portions, thereby the suction ring is fixed on a plurality of blades definitely.

Preferably, has groove in the anastomosis part, so that it is divided into two parts.This groove plays the distortion that absorbs the anastomosis part and is convenient to two parts are inserted effect in the receiver portion.This groove also has the effect of stress relaxation.

More preferably, cut sth. askew or sphering in the edge that centers on the anastomosis part of groove.Around groove part cut sth. askew or sphering partly plays the effect that prevents to produce whistle during turbofan is rotated.

Because floor has height and flexible, so can carry out engaging between anastomosis part and the floor smoothly.Moreover floor can be effectively be fixed to the suction ring on the blade definitely, and removes Shi Buhui at the suction ring from blade and cause any crackle.

The anastomosis part is sandwiched between a pair of floor, makes the suction ring be fixedly secured on the blade.

Each has guide portion with the guide engagement part to floor in its underpart.Guide portion plays to be convenient to opposed slot locating engagement part and the anastomosis part is inserted into effect in the groove.Guide portion also plays the effect that reduces to be applied to the stress on the floor.

In another aspect of this invention, the method for making turbofan comprises: on the side relative with the suction ring, form the anastomosis part on each in a plurality of blades; On the suction ring, form a plurality of receiver portions; And with the anastomosis part engage with one of a plurality of receiver portions with will aspirate the ring be fixed on a plurality of blades.

This method has been saved time-consuming ultra-sonic welded or bonding, and steady quality and cheap turbofan might be provided.

Description of drawings

With reference to accompanying drawing, by following description of preferred embodiments, it is more obvious that above and other objects of the present invention and feature will become, and identical in the accompanying drawings label is represented identical parts.Wherein:

Fig. 1 is the perspective view according to the turbofan of the first embodiment of the present invention;

Fig. 2 encircles the perspective view of the turbofan shown in Figure 1 before being installed on the turbofan for suction;

Fig. 3 is the enlarged perspective of the part " Z " of Fig. 2;

The front elevation of Fig. 4 turbofan according to a second embodiment of the present invention;

Fig. 5 A is for when arrow Y watches, before the floor that the anastomosis part and the suction of blade encircles engages along the sectional drawing of the X-X line of Fig. 4;

Fig. 5 B is the view that is similar to Fig. 5 A, but the situation of the anastomosis part that only shows blade when engaging with the floor of suction ring;

Fig. 5 C is the view that is similar to Fig. 5 A, but only shows the anastomosis part and the situation of aspirating after the floor that encircles engages of blade;

Fig. 6 is the perspective view of being installed to the gate cell of the air conditioner in the ceiling board; With

Fig. 7 is the perspective view of conventional turbofan.

Embodiment

To describe embodiments of the invention in detail now.With reference to accompanying drawing, the embodiments described below are intended to explain the present invention.

Fig. 1 is the perspective view according to the turbofan of the first embodiment of the present invention, and Fig. 2 is the perspective view of the turbofan shown in Figure 1 before the suction ring is installed on the turbofan, and Fig. 3 is the enlarged perspective of the part " Z " of Fig. 2.

As shown in Figures 1 to 3, turbofan 1 comprises: propeller boss 2, and the center that it is positioned at turbofan 1 is used for holding securely the rotatingshaft of motor (not shown); And mainboard 5, it has the tapered segment 3 of dihedral and flat substantially annular slab 4, and described tapered segment 3 is from propeller boss 2 oblique outer extensions, so that the covering motor; Described annular slab 4 is along stretching out with the axial vertical direction of propeller boss 2 outer periphery from tapering part 3.Turbofan 1 also comprises a plurality of blades 6 and suction ring 7, and described a plurality of blades 6 are formed on the annular slab 4 at certain intervals, and described suction ring 7 is fixed on the free end of each blade in a plurality of blades 6.

Each blade 6 has the anastomosis part 8 of relative thin, its have with the integrally formed fixed end of blade and with the fixed end opposed free ends.Anastomosis part 8 has protuberance 8a, and itself and free end form, and be laterally projecting from free end.As shown in Figure 3, also have the groove 9 of general rectangular in the core of anastomosis part 8, the anastomosis part being divided into two parts, and cut sth. askew or sphering around the edge 11 of the anastomosis part 8 of groove 9.

Have integrally formed at certain intervals a plurality of receiver portion A on the suction ring 7, so that extend from the suction hoop.Each receiver portion A is used to receive an anastomosis part 8, and comprises relative to each other a pair of floor 10,10a, limit therebetween groove 10b (as, referring to Fig. 5 A).The height of floor 10,10a is decided according to the height of anastomosis part 8, so that anastomosis part 8 can engage definitely with floor 10,10a.At first, each anastomosis part 8 opposed slot 10b is positioned among the receiver portion A, then, to aspirate ring 7 to blade 6 extruding, till the protuberance 8a of each anastomosis part 8 is inserted among the groove 10b, so that anastomosis part 8 is engaged with receiver portion A, be fixed on a plurality of blades 6 thereby will aspirate ring 7.

The groove 9 of anastomosis part 8 plays the effect of the distortion that absorbs anastomosis part 8, not exclusively be parallel to floor 10,10a with convenient anastomosis part 8, promptly, anastomosis part 8 not with floor 10,10a between groove 10b when aliging, the groove 9 that exists in the anastomosis part 8 allows two parts to cooperate floor 10,10a, is inserted among the groove 10b and needed power when reducing to insert thereby be convenient to anastomosis part 8.Moreover, be applied to the stress of floor 10 roots 12 relative and the stress that is applied on the root 13 of anastomosis part 8 all is reduced with anastomosis part 8 protuberance 8a, therefore reduced residual stress, thereby the turbofan of stabilised quality might be provided.Sphering or chamfered portion 11 around groove 9 play the effect that prevents generation whistle during turbofan 1 is rotated.

And, owing to anastomosis part 8 is sandwiched between a pair of floor that faces one another 10, the 10a, and be subjected to this, thereby avoided anastomosis part 8 bendings the floor 10 that faces one another, the support of 10a, therefore can prevent that protuberance 8a from shifting out from floor 10 easily.

Fig. 4 has described turbofan according to a second embodiment of the present invention, and Fig. 5 A to 5C has described the situation when anastomosis part and corresponding floor engage one another.

In the present embodiment, the floor 10 that forms on the suction ring 7 tilts with respect to relative floor 10a, forms guide portion 14 with the bottom at floor 10.That is to say that the groove 10b between floor 10, the 10a widens gradually towards root 12 1 sides of floor 10, cut sth. askew in the bottom 15 of floor 10a relatively.

Utilize this structure, the protuberance 8a in anastomosis part 8 engages (shown in Fig. 5 C) before with floor 10, and the anastomosis part 8 of blade 6 is inserted under the guiding of the guide portion 14 of floor 10 among the groove 10b between floor 10, the 10a, shown in Fig. 5 A and 5B.Therefore, be convenient to suction ring 7 is installed on blade 6, thereby improved the productivity of turbofan.

And, in the process of the anastomosis part 8 of blade 6 and floor 10 joints that aspirate ring 7, when guide portion 14 is soon passed through in anastomosis part 8, floor 10 begins to open, and behind the joint shown in Fig. 5 C, floor 10 turns back to original-shape, thereby has reduced to be applied to the stress of floor 10 roots 12.Therefore, can obtain the turbofan of stabilised quality.

In the above-described embodiment, the groove 9 of anastomosis part 8 can be filled with packing.

Although have a groove 9 in the described in the above-described embodiments anastomosis part 8, anastomosis part 8 can have two or more grooves.

Moreover, used the combination of guide portion 14 and chamfered portion 15 in a second embodiment, but its position can be switched.In addition, can provide two guide portions or two chamfered portion.

Moreover, although described in the above-described embodiment anastomosis part 8 has protuberance 8a, on floor 10, can be provided with protuberance.In this case, forming groove in anastomosis part 8 inserted wherein giving prominence to.

The present invention is effective especially to the turbofan that manufacturing is formed from a resin.

Although by some examples the present invention has been carried out sufficient description, should be noted that clearly can various variations and change be arranged for a person skilled in the art to it with reference to accompanying drawing.Therefore, unless this variation and change have departed from principle of the present invention and essence, they should be in the present invention involved.

Claims (6)

1. turbofan comprises:

Mainboard;

The suction ring, it is installed on the mainboard, and is relative with mainboard, and described suction ring has a plurality of receiver portions; With

A plurality of blades, described a plurality of blades and described mainboard are integrally formed, and are inserted between mainboard and the suction ring, and each in a plurality of blades has the anastomosis part, engages with one of a plurality of receiver portions, be fixed on a plurality of blades so that will aspirate ring,

Wherein said anastomosis part has free end and from the laterally projecting protuberance of free end, so that protuberance can engage with one of a plurality of receiver portions, and

In a plurality of receiver portions each comprises a pair of floor, and this is to having groove between the floor, and the anastomosis part is inserted in the described groove.

2. turbofan according to claim 1 is characterized in that, has groove in the anastomosis part.

3. turbofan according to claim 2 is characterized in that, is cut sth. askew or sphering in the edge that centers on the anastomosis part of groove.

4. turbofan according to claim 1 is characterized in that the anastomosis part is sandwiched between a pair of floor.

5. according to claim 1 or 4 described turbofan, it is characterized in that the bottom of one of a pair of floor has guide portion, be used for the guide engagement part.

6. method of making turbofan, described turbofan comprises: mainboard; Be installed in the suction ring on the mainboard; And a plurality of blades between insertion mainboard and the suction ring, described a plurality of blades and described mainboard are integrally formed, and described method comprises:

On the side relative, form the anastomosis part on each in a plurality of blades with the suction ring; On the suction ring, form a plurality of receiver portions; With

With the anastomosis part engage with one of a plurality of receiver portions with will aspirate the ring be fixed on a plurality of blades,

Wherein said anastomosis part has free end and from the laterally projecting protuberance of free end, so that protuberance can engage with one of a plurality of receiver portions, and

In a plurality of receiver portions each comprises a pair of floor, and this is to having groove between the floor, and the anastomosis part is inserted in the described groove.

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