CN1370934A

CN1370934A - Multiple-winged vane wheel and its manufacture

Info

Publication number: CN1370934A
Application number: CN01122649A
Authority: CN
Inventors: 木下清志; 奥谷隆
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2001-02-26
Filing date: 2001-06-29
Publication date: 2002-09-25
Anticipated expiration: 2021-06-29
Also published as: CN1205417C; JP2002257078A; KR20020069467A; KR100427100B1; CN2502047Y; MY128584A

Abstract

Multi-bladed impeller and its manufacturing method. An annular partition 2 is lightened by making the inner diameter 10 of a blade smaller than the inner diameter 11 of the partition 2, a ring plate 17 is fixed to the tip of an inner diameter part 15 to use as a guide before joining and to easily fit to a hole 27, and a pitch small in slippage of a shaft center and small in unbalance between blades can be kept. By arranging the inner diameter part 15 and the ring plate 17 on the fixed side of an injection molding mold and an outer diameter part on the moving side, mold structure is made simple, resin is poured from the ring plate 17, made to flow from the tip of the blade toward the partition plate 2, and by pressing the surface of the ring plate 17, ejection is made possible.

Description

Multiple-winged vane wheel and manufacture method thereof

Technical field

The present invention relates to employed multiple-winged vane wheel and manufacture methodes thereof such as air conditioner.

Background technique

As air conditioner, for example the structure of using refrigerator to carry out heat exchange between indoor set shown in Figure 35 68 and outdoor unit (not shown) is well-known, make multiple-winged vane wheel 72 rotations by fan motor 69 with indoor set 68, in air imported indoor set 68 from the outside, and when the heat exchanger 70 by the refrigerator that circulating, carry out heat exchange and from blow-off outlet 71 to indoor supply.

The multiple-winged vane wheel 72 that constitutes by thermoplastic resin in the past, be known that with the resin forming product that is injection molded into mode shape or with their in conjunction with and the multiple-winged vane wheel 72 that constitutes.

Again, the structure of the employed multiple-winged vane wheel 72 of air conditioner as shown in figure 36, the impeller 75 that a plurality of uses are made of demarcation strip 73 and a plurality of blade 74, and will have the end plate 76 of axle and have with end plate on the multiple-winged vane wheel 72 that after molding and forming, engages respectively of the wheel hub 77 that is fastenedly connected of fan motor (not shown) and the impeller 78 that constitutes by a plurality of blades 74 with methods such as ultrasonic welding be known.

Again, in multiple-winged vane wheel, as shown in figure 37 the inner face of the demarcation strip 73 of impeller in atresia and under the obstructed state since the central part of impeller peel off and the air quantity reduction, so be provided with the hole at the central part of demarcation strip 73.

Again, as shown in figure 38, on the demarcation strip 73 of impeller, have under the state in hole 79, because be subjected to that pressure oscillations in the impeller 75 of adjacency influence, the blow-off outlet of the filter of indoor set indoor set during by obstructions such as dusts blow out pressure transient, so as the hole of obstruction demarcation strip 73, according to purpose and the form of the demarcation strip 73 of corresponding change multiple-winged vane wheel.

Again, the manufacture method of the molding and forming of the impeller 75 that constitutes by demarcation strip 73 and a plurality of blade 74, be known that with mould shown in Figure 39, the burning mouth 81 that injects resin is set on demarcation strip 73, after moulding, carry out with stretching out pin 82 when after mould is opened, making impeller 75 demouldings, and have the structure of the cold runner of runner 83.

Again, in order to reduce the noise of the employed multiple-winged vane wheel of air conditioner, the spacing of having introduced in for example Japanese Utility Model is registered No. 1839328 communique as shown in figure 40 74 in a plurality of blades of impeller 75 makes irregular.

Again, the multiple-winged vane wheel of employed large-scale or long size such as air conditioner in the past, for example having disclosed as shown in Figure 41 demarcation strip 84 usefulness expansion ratios in Japanese patent laid-open 4-353293 communique is the foamed resin material below 5 times, the multiple-winged vane wheel in the past 86 that a plurality of blade 85 usefulness are made of the resin material of glass fibre enhancing.

But, in the structure of above-mentioned multiple-winged vane wheel in the past, with joints such as ultrasonic welding the time, make the blade 74 of the groove of end plate 76 with axle and impeller 75 chimeric, or it is chimeric with the blade 74 of the impeller of adjacency in the groove of impeller 75, or it is chimeric with the blade 74 of impeller 78 in the groove of impeller 75 with wheel hub 77, be only to be embedded in predetermined place in a circumferential direction because the spacing of 74 in a plurality of blades is random, and, owing to there is not the targeting part when circumferencial direction rotates, exist the problem that productivity reduces.

Again, with joints such as ultrasonic welding the time, since not make the consistent structure in axle center between the impeller 75 of the end plate 76 with axle and adjacency, do not make between the impeller 75 in impeller 75 and adjacency the axle center unanimity structure, do not have impeller 75 with the impeller 78 with wheel hub 77 between make the structure of axle center unanimity, so exist that the axle center of the multiple-winged vane wheel after the welding joint produces skew, inclination and when using fan motor 69 to rotate generation than the problem of large unbalance.

Again, when the irregular impeller of spacing of 74 in molding and forming blade, as shown in figure 42, close position 87 resins in the interval that blade is 74 flow, produce thin difficult the flowing of position 88 resins irregular easily, and the blade at the position 88 of dredging becomes to lack easily expects injection (シヨ-トシヨ Star ト).In addition, because when resin too is filled in close position 87, the resistance at close position 87 is bigger when impeller 75 carries out the demoulding, so exist the problem that the part of the blade at close position 87 remains in the so-called undue filling (Japanese: オ-バ-パ Star Network) in the mould.Therefore, the Draft that forms the mould of blade need make more than 3/1000, exists the relatively problem of difficulty of multiple-winged vane wheel lightweight.

In addition, owing to be the structure of cold runner, there is the long problem of molding cycle.

Again, make weight become heavy owing to make the long sizeization or the maximization of the multiple-winged vane wheel that can save energy of air conditioner, during heated state, the bending deformation imbalance big and that produce by fan motor 69 rotations time that causes because of deadweight that produces multiple-winged vane wheel becomes big, the vibrative problem of indoor set 68 bodies so utilize the condenser heat release.Therefore, it is difficult constituting the multiple-winged vane wheel that is suitable for energy-conservationization most.

Again, the large-scale multiple-winged vane wheel that discloses in Japanese patent laid-open 4-353293 communique 86 is because demarcation strip 84 is different with the material of a plurality of blade 85, so demarcation strip 84 becomes the split part with blade 85 and the part number is increased, and, productivity is reduced so curring time is long owing to form demarcation strip 84 with foamed resin material.

Because demarcation strip 84 adopts foamed resin material, also depositing the problem that reduces in the impact strength that makes multiple-winged vane wheel again.

Disclosure of an invention

The present invention will solve the problem that these existed in the past just, following multiple-winged vane wheel is provided, with the irregular multiple-winged vane wheel of spacing between mode engagement blade such as ultrasonic welding the time, make end plate and impeller chimeric easily with axle, or make the impeller of impeller and adjacency chimeric easily, or make impeller chimeric easily with impeller with wheel hub, can boost productivity, and, the skew in the axle center of the multiple-winged vane wheel that engages with modes such as ultrasonic welding, tilt to diminish and uneven less when rotating.

Again, when being provided at the molding and forming impeller, the position of dredging of blade can not take place to lack the material injection and the manufacture method of the multiple-winged vane wheel of close position filling within reason, and provide the manufacture method of the short multiple-winged vane wheel of molding cycle, the multiple-winged vane wheel that can make air conditioner energy-saving is provided, and the multiple-winged vane wheel that lightweight is provided and impact strength is reduced.

Structure of the present invention is, the demarcation strip of ring-type axially is being connected with methods such as ultrasonic welding and is having end plate at two ends with the impeller with a plurality of blades that is mounted to equidistant or irregular spacing along periphery radially, and the aperture surface internal diameter of a plurality of blades is done also greatlyyer than the internal diameter of described demarcation strip.

The simple declaration of accompanying drawing

Fig. 1 is the stereogram of the multiple-winged vane wheel of expression the invention process form.

Fig. 2 is the side view in partial cross-section of the multiple-winged vane wheel of expression the invention process form.

Fig. 3 is the structural drawing of the multiple-winged vane wheel of expression the invention process form.

Fig. 4 is the side view in partial cross-section of the multiple-winged vane wheel of expression the invention process form.

Fig. 5 is the structural drawing of the multiple-winged vane wheel of expression the invention process form.

Fig. 6 is the side view in partial cross-section of the multiple-winged vane wheel of expression the invention process form.

Fig. 7 is the structural drawing of the multiple-winged vane wheel of expression the invention process form.

Fig. 8 is the stereogram of impeller.

Fig. 9 is the sectional view of the mould of impeller.

Figure 10 is with impeller and the chimeric flow chart of impeller.

Figure 11 is the side view in partial cross-section of the multiple-winged vane wheel of expression the invention process form.

Figure 12 is the structural drawing of the multiple-winged vane wheel of expression the present invention one example.

Figure 13 is the stereogram of impeller.

Figure 14 is the sectional view of the mould of impeller.

Figure 15 is with impeller and the chimeric flow chart of impeller.

Figure 16 is the side view in partial cross-section of the multiple-winged vane wheel of expression the invention process form.

Figure 17 is the structural drawing of the multiple-winged vane wheel of expression the present invention one example.

Figure 18 is the stereogram of impeller.

Figure 19 is the plan view of seeing from the annular plate of impeller.

Figure 20 is the sectional view of the mould of impeller.

Figure 21 is with impeller and the chimeric flow chart of impeller.

Figure 22 is the die cut view with impeller of annular plate.

Figure 23 is the sectional view after the mould of the impeller of Figure 22 is opened.

Figure 24 is the die cut view before the impeller with annular plate is stretched out.

Figure 25 is the die cut view that makes after the impeller with annular plate stretches out.

Figure 26 is the die cut view before the impeller with discoid demarcation strip is stretched out.

Figure 27 is the die cut view that makes after the impeller with discoid demarcation strip stretches out.

Figure 28 is the side view in partial cross-section with impeller of annular plate.

Figure 29 is the E portion enlarged view of Figure 28.

Figure 30 is the die cut view of Figure 29 portion.

Figure 31 is the F portion enlarged view of Figure 28.

Figure 32 is the figure after the welding rib is installed on the enlarging section of the F of Figure 28 portion.

Figure 33 is the side view in partial cross-section of impeller of the wheel hub with multiple-winged vane wheel of expression the invention process form.

Figure 34 is the side view in partial cross-section of end plate of the wheel hub with multiple-winged vane wheel of expression the invention process form.

Figure 35 is the fragmentary perspective cross sectional view of the indoor set of air conditioner.

Figure 36 is the side view in partial cross-section of multiple-winged vane wheel in the past.

Figure 37 is that the G-G of Figure 36 is to sectional view.

Figure 38 is that the G-G of Figure 36 is to sectional view.

Figure 39 is a sectional view of representing the mould structure of impeller in the past.

Figure 40 is the explanatory drawing of the random spacing of blade of expression impeller.

Figure 41 is the stereogram that foam material is used for the multiple-winged vane wheel behind in the past the demarcation strip.

Figure 42 is the major component stereogram of the impeller in the forming process.

The working of an invention form

Example 1

Referring now to Fig. 1-Fig. 5 example 1 of the present invention is described.

Fig. 1-Fig. 3 is the diagrammatic sketch of structure of the multiple-winged vane wheel 1 of expression the invention process form.Multiple-winged vane wheel 1 usefulness thermoplastic resin is made.Thermoplastic resin, for example be with glass fibre (below, be called for short GF) with the ratio of about 20-40% weight sneak into the acrylonitrile phenylethylene resin series (below, be called for short and make the AS resin) material, or with carbon fiber (below, be called for short and make CF) sneak into the material of AS resin with the ratio below about 30% weight, or with glass fibre (below, be called for short and make GF) sneak into by vinyl benzene and the copolymer resins that monomer was generated (the heat-resisting polystyrene resin after investing heat resistance with the ratio of about 20-40% weight, below, be called for short that to make heat-resisting PS be resin) material.

Illustrate with concrete numerical value below, but the present invention is not limited to this numerical value.

To axially constitute multiple-winged vane wheel 1 by the demarcation strip 2 of ring-type and a plurality of impellers 4, the end plate 6 that constitute along a plurality of blades 3 of radial installation, impeller 7, the end plate 9 with axle 8 with a plurality of blades 3 of installing radially along periphery with the wheel hub 5 that is fastenedly connected with motor by engaging with methods such as ultrasound.

In addition, as multiple-winged vane wheel, not only can be the once-through type fan shown in this example (cross-flow type fan), also comprise leafy shape ring-type fan (or claiming Sirocco fan).

The internal diameter 10 of the aperture surface of a plurality of blades 3 of impeller 4 is littler than the internal diameter 11 of ring-type demarcation strip 2.For example, when impeller outer diameter was φ 95mm, the internal diameter of ring-type demarcation strip 2 was φ 77mm, and the internal diameter 10 of aperture surface is also littler than φ 77mm.

Blade 3 with demarcation strip 2 rightabout front ends are planes.Or, also can be to have with the length of center side impeller 13 to axially extended protuberance 12 structures as Fig. 4-shown in Figure 5.

And, adopt this example, owing to the internal diameter 11 of the demarcation strip 2 of ring-type becomes lighter greatly, so can realize the lightweight of multiple-winged vane wheel 1.Therefore, in the time of on the indoor set 68 that light-weighted multiple-winged vane wheel 1 is arranged at air conditioner,, reduce changes in balance even also can reduce the deflection that the deadweight because of multiple-winged vane wheel 1 produces because of the heat release of condenser etc. is heated.Therefore, can keep the performance of stablizing multiple-winged vane wheel 1.

In addition, a plurality of blades 3 of impeller 4 or impeller 13 to the inner face of demarcation strip 2 has effective blade face.Increase the air quantity of multiple-winged vane wheel 1 by the surface area that increases blade 3.And the air quantity that increases multiple-winged vane wheel 1 by the surface area that increases impeller 3 can be advanced-be gone on foot to the length of center side of front end of utilizing blade 3 to axially extended protuberance 12.By these measures, can improve the performance of air conditioner.

In addition, demarcation strip 2 internal diameters 11 of ring-type and protuberance 12 be to axial elongation, can suitably set according to the specification of the resin material of the external diameter of the desired performance of multiple-winged vane wheel, impeller, use and air conditioner.

Example 2

Referring now to Fig. 6-Figure 10 example 2 of the present invention is described.

Fig. 6-Fig. 8 is the structure of the multiple-winged vane wheel 14 of expression the invention process form.Multiple-winged vane wheel 14 usefulness thermoplastic resins are made.Thermoplastic resin, it for example can be the material of GF being sneaked into the AS resin with the ratio of about 20-40% weight, or CF sneaked into the material of AS resin with the ratio below about 30% weight, or GF is sneaked into the material that heat-resisting PS is a resin with the ratio of about 20-40% weight.

Will be by the demarcation strip 2 and a plurality of impellers 19 that constitute along a plurality of blades 3 that periphery is installed radially of ring-type, the end plate 6 with the wheel hub 5 that is fastenedly connected with motor, impeller 20 with a plurality of blades 3, end plate 9 with axle 8 engages with ultrasonic welding etc. vertically and constitute multiple-winged vane wheel 14.

The inside diameter 15 of impeller 19 is littler than the internal diameter 11 of demarcation strip 2.For example, when impeller outer diameter was φ 95mm, the internal diameter of the demarcation strip 2 of ring-type was φ 77mm, and the internal diameter of inside diameter 15 is below the φ 77mm.And impeller 19 has the annular plate 17 that forms ring-type at the opposition side with demarcation strip 2.

The external diameter 18 of annular plate 17 is less than the internal diameter 11 of demarcation strip 2.For example, the internal diameter 11 of the demarcation strip 2 of the ring-type when impeller outer diameter is φ 95 is φ 77mm, and the external diameter 18 of annular plate 17 is less than φ 77mm.

In addition, the section shape of the impeller 16 of the X section of presentation graphs 8 (a), Y section respectively in Fig. 8 (b), (c).As shown in the drawing, inside diameter constitutes: its width little by little diminishes to the demarcation strip side of described ring-type from the tip side opposite with the demarcation strip of the ring-type of blade.Outer diameter part constitutes: its width little by little becomes big from the tip side opposite with the demarcation strip of the described ring-type of described blade to the demarcation strip side of described ring-type.By making like this, under the situation that the mould of cutting apart in order to the inboard and the outside of impeller forms, can easily carry out the demoulding respectively as shown in Figure 9, improve the up-to-standard rate of manufacture view.

The internal diameter 10 of the aperture surface of a plurality of blades 3 of impeller 19 is littler than the internal diameter 11 of the demarcation strip 2 of ring-type.For example, when impeller outer diameter was φ 95, the internal diameter 11 of the demarcation strip 2 of ring-type was φ 77mm, and the internal diameter 10 of aperture surface is also littler than φ 77mm.Fig. 9 is the sectional view that constitutes the mold for injection molding of impeller.Part 22 beyond the blade-side of face 21, outer diameter part 16 and the annular plate 17 that can constitute the blade-side of inside diameter 15 and annular plate 17 respectively with the fixed side 23 and the movable side 24 of forming die.

Figure 10 is with impeller adjacent to each other 19 chimeric flow chart before engaging.Before Figure 10 (a) expression is chimeric, the chimeric back of Figure 10 (b) expression, Figure 10 (c) expression wait diagrammatic sketch behind the joint by welding.The hole 27 of the demarcation strip 2 of ring-type becomes targeting part, and the annular plate 17 of adjacent impeller 19 is chimeric with it and engage with methods such as ultrasonic welding.

Because the interval (spacing) of a plurality of blades 3 utilizes annular plate 17 to fix, thus before joint with the impeller 19 of adjacency when chimeric, the interval of a plurality of blades 3 (spacing) is not destroyed.

And, adopt this example, owing to be the simple mould structure that does not need slider etc., so can become inexpensive mould.

Again, when making the impeller 19 of impeller 19 and adjacency chimeric before joint, because annular plate 17 embeds in the hole 27 of demarcation strips 2 easily, and the interval of a plurality of blade 3 is not destroyed yet, so because of chimericly simply boosting productivity.

Again, because the interval (spacing) of a plurality of blades 3 utilizes annular plate 17 to fix, when methods such as utilizing ultrasonic welding engages, realize that because of can not destroying a plurality of blades 3 arrangement of the irregular spacing of low noise engages, so can realize low noise and well behaved multiple-winged vane wheel 14.

Again, when engaging impeller 19 with methods such as ultrasonic welding, owing to can chimeric status make the hole 27 of demarcation strip 2 of ring-type chimeric mutually with the annular plate 17 of the impeller 19 of adjacency, so impeller 19 tails off with skew, the inclination in the axle center of the impeller 19 of adjacency when ultrasonic welding, the balance in the time of therefore can improving multiple-winged vane wheel 14 revolutions.

Again, the annular plate 2 of the impeller 19 after the ultrasonic welding, for hole 27 is set in the inner face of the demarcation strip 2 of the ring-type of the impeller 19 that it is contained in adjacency and in each demarcation strip 2 inside of multiple-winged vane wheel 14, owing to the resistance that can reduce demarcation strip 2 inside increases air quantity, so can improve the performance of air conditioner.

Again, the size of the internal diameter 11 of the demarcation strip 2 of ring-type and annular plate 17 can be according to the specification of the external diameter of multiple-winged vane wheel 14 desired performances, impeller, employed resin material, air conditioner and is suitably set.

Example 3

Referring now to Figure 16-Figure 21 example 3 of the present invention is described.

Figure 16-Figure 19 is the structure of the multiple-winged vane wheel of expression the invention process form.Multiple-winged vane wheel 39 usefulness thermoplastic resins are made.Thermoplastic resin, it for example is the material of GF being sneaked into the AS resin with the ratio of about 20-40% weight, or CF sneaked into the material of AS resin with the ratio below about 30% weight, or GF is sneaked into the material that heat-resisting PS is a resin with the ratio of about 20-40% weight.

Will by the demarcation strip 2 and a plurality of impellers 41 that constitute along a plurality of impellers 3 that periphery is installed radially of ring-type, have the wheel hub 5 that is fastenedly connected with motor end plate 6, have impeller 42 in periphery along a plurality of blades 3 of radial installation, end plate 9 with axle 8 engages and constitutes multiple-winged vane wheel 39 in methods such as axially utilizing ultrasonic welding.

The inside diameter 15 of impeller 41 is littler than the internal diameter 11 of demarcation strip 2.When for example impeller outer diameter was φ 95mm, the internal diameter 11 of ring-type demarcation strip 2 was φ 77mm, and the internal diameter of inside diameter 15 is below the φ 77mm.And impeller 41 has the annular plate 17 that forms ring-type and at 4 spokes 40 of central direction at the opposition side with demarcation strip 2.

The external diameter 18 of annular plate 17 is less than the internal diameter 11 of demarcation strip 2.When for example impeller outer diameter was φ 95mm, the internal diameter of the demarcation strip 2 of ring-type was φ 77mm, and the external diameter 18 of annular plate 17 is less than φ 77mm.

The internal diameter 10 of the aperture surface of a plurality of blades 3 of impeller 41 is littler than the internal diameter 11 of the demarcation strip 2 of ring-type.When for example impeller outer diameter was φ 95mm, the internal diameter 11 of the demarcation strip 2 of ring-type was φ 77mm, and the internal diameter 10 of aperture surface is littler than φ 77mm.

Again, Figure 20 is that the mold for injection molding that constitutes impeller 41 has sectional view.Face 44 beyond the blade-side of the face 43 of the blade-side of inside diameter 15 and spoke 40, outer diameter part 16 and spoke 40 constitutes with the fixed side 45 and the movable side 46 of forming die respectively.And, be that the central authorities at 4 spokes 40 are provided with the cast gate 47 that injects resin, the mould with hot runner 48 of resin storing section.

Again, Figure 21 carries out chimeric flow chart with impeller 41 with the impeller 41 of adjacency before engaging.Figure 21 (a) be expression chimeric before, Figure 21 (b) is that the chimeric back of expression, Figure 21 (c) they are the diagrammatic sketch that utilizes behind the method joint such as welding.

The hole 27 of the demarcation strip 2 of ring-type becomes targeting part, and the annular plate 17 of the impeller 41 of adjacency is chimeric with it, and engages with methods such as ultrasonic welding.Thus, with the impeller 41 of adjacency when chimeric, the interval of a plurality of impellers 3 (spacing) is not destroyed before joint.

Adopt this example, owing to be the easy mould structure that does not need slider, so can become inexpensive mould.

Again, during impeller 41 tablings of impeller 41 and adjacency, annular plate 17 embeds the holes 27 of demarcation strips 2 easily before joint, and, because the interval of a plurality of blades 3 is not destroyed yet,, therefore, can boost productivity so can carry out chimericly simply.

Because the interval (spacing) of a plurality of blades 3 is being fixed with annular plate 17, arrange and engage so can not can when engaging destroy the irregular spacing of a plurality of blades 3 realization low noises with methods such as ultrasonic welding again.So, can realize low noise and well behaved multiple-winged vane wheel 39.

Again, with joint impellers 41 such as ultrasonic welding the time, owing to can chimeric status make the hole 27 of demarcation strip 2 of ring-type chimeric with the annular plate 17 of the impeller 41 of adjacency, so impeller 41 tails off with skew, the inclination in the axle center of the impeller 41 of adjacency when ultrasonic welding, therefore, the balance in the time of can improving multiple-winged vane wheel 39 rotations.

Again, the annular plate 17 of the impeller 41 after the ultrasonic welding and spoke 40, owing to be contained in the inner face of demarcation strip of ring-type of the impeller 41 of adjacency, and can make resistances in the demarcation strip 2 reduce ground to increase air quantity, can improve the performance of air conditioner because of each demarcation strip 2 that opening is located at multiple wing shape 39 is inner.

At the central part of a plurality of spokes,, boost productivity so can accelerate forming period owing to the cast gate that injects resin can be set, can become the mould structure of hot runner 48 and can not have the shaping of runner again.

Again, the radical of the size of the internal diameter 11 of the demarcation strip 2 of ring-type and annular plate 17, spoke can suitably be set according to the specification of the external diameter of multiple-winged vane wheel 39 desired performances, impeller, employed resin material, air conditioner.

Example 4

Referring now to Figure 28-Figure 30 example 4 of the present invention is described.

Figure 28-Figure 29 is the diagrammatic sketch of annular plate 17 of impeller 19 of the multiple-winged vane wheel 14 of expression the invention process form.The impeller 19 usefulness thermoplastic resins of multiple-winged vane wheel are made.Thermoplastic resin, it for example is the material of GF being sneaked into the AS resin with the ratio of about 20-40% weight, or CF sneaked into the material of AS resin with the ratio below about 30% weight, or GF is sneaked into the material that heat-resisting PS is a resin with the ratio of about 20-40% weight.

A plurality of blades 3 that the impeller 19 of present embodiment has the demarcation strip 2 of ring-type, install radially along periphery, the demarcation strip 2 of ring-type, form the annular plate 17 of ring-type in the inboard of the front end of its opposition side.Annular plate 17 on the direction face of the demarcation strip 2 of ring-type from the aperture surface of annular plate 17 to outside diameter, for example be the width that the occasion of φ 95mm has 3mm at the external diameter of impeller 19.And annular plate 17 has is axially doing thick heavy section 58.For example, be that the occasion of φ 95 thickens 1.5mm at the external diameter of impeller 19.In addition, Figure 30 is the sectional view of mould of injection molded of annular plate 17 parts of impeller 19.The cast gate 51 that injects resin is arranged on the heavy section 58 of annular plate 17.

Adopt this example, because resin flows, plays the resin flow leading role to the low heavy section 58 of resistance, resin can suppress the irregular of resin flow, thereby can stably form by evenly flowing radially to thinner wall section from heavy section 58.

In addition, also can obtain same effect even make resin inject resin and flow to heavy section 58 from spoke.The width of heavy section 58, thickness can suitably be set according to the external diameter of the desired performance of multiple-winged vane wheel, impeller, the structure of mould, employed resin material.

Example 5

Referring now to Figure 11-Figure 15 example 5 of the present invention is described.

Figure 11-Figure 13 is the diagrammatic sketch of structure of the multiple-winged vane wheel of expression the invention process form.Multiple-winged vane wheel 28 usefulness thermoplastic resins are made.Thermoplastic resin, it for example is the material of GF being sneaked into the AS resin with the ratio of about 20-40% weight, or CF sneaked into the material of AS resin with the ratio below about 30% weight, or GF is sneaked into the material that heat-resisting PS is a resin with the ratio of about 20-40% weight.

Will be by the demarcation strip 2 and a plurality of impellers 31 that constitute along a plurality of blades 3 that periphery is installed radially of ring-type, have the end plate 6 that is fastenedly connected with motor, have impeller 32 along periphery along a plurality of blades 3 of installing radially, end plate 9 with axle 8 engages and constitutes multiple-winged vane wheel 28 in the method for axially utilizing ultrasonic welding etc.

The inside diameter 15 of impeller 31 is littler than the internal diameter 11 of demarcation strip 2.When for example impeller outer diameter was φ 95mm, the internal diameter 11 of the demarcation strip 2 of ring-type was φ 77mm, and the internal diameter of inside diameter 15 is below the φ 77mm.In addition, impeller 31 has discoid demarcation strip 29 at the opposition side with demarcation strip 2.

The external diameter 30 of discoid demarcation strip 29 is less than the internal diameter 11 of the demarcation strip 2 of ring-type.When for example impeller outer diameter was φ 95mm, the internal diameter 11 of the demarcation strip 2 of ring-type was φ 77mm, and the external diameter 30 of discoid demarcation strip 29 is below the φ 77mm.

The internal diameter 10 of the aperture surface of a plurality of blades 3 of impeller 31 is littler than the internal diameter 11 of the demarcation strip 2 of ring-type.For example, when impeller outer diameter was φ 95mm, the internal diameter of the demarcation strip 2 of ring-type was φ 77mm, and the internal diameter 10 of aperture surface is less than φ 77mm.

Again, Figure 14 is the sectional view that constitutes the mold for injection molding of impeller.Face 34 beyond the blade-side of the face 33 of the blade-side of inside diameter 15 and discoid demarcation strip 29, outer diameter part 16 and discoid demarcation strip 29 is made of the fixed side 35 and the movable side 36 of forming die respectively.In addition, be that central authorities at discoid demarcation strip 29 are provided with the cast gate 37 that injects resin, have the mould of the hot runner 38 that resin stores.

Again, Figure 15 will carry out chimeric flow chart with the impeller 31 of impeller 31 adjacency before engaging.Figure 15 (a) be expression chimeric before, Figure 15 (b) be expression chimeric after, Figure 15 (c) is the diagrammatic sketch after expression utilizes method joint such as welding.

The hole 27 of the demarcation strip 2 of ring-type becomes targeting part, and its discoid demarcation strip 29 with the impeller 31 of adjacency is chimeric and engage with methods such as ultrasonic welding.And the interval of a plurality of blades 3 (spacing) utilizes discoid demarcation strip 29 to fix.So with the impeller 31 of adjacency when chimeric, the interval of a plurality of blades 3 (spacing) is not destroyed before joint.

Adopt this example,, can become the mould of cheapness owing to be the easy mould structure that does not need slider etc.

Again, when the impeller 31 of impeller 31 and adjacency was chimeric before joint, discoid demarcation strip 29 embedded in the hole 27 of demarcation strip 2 of ring-types easily, and the interval of a plurality of blades 3 is not destroyed yet.So, chimeric owing to carrying out simply, so can boost productivity.

Again, the interval of a plurality of blades 3 (spacing) utilizes discoid demarcation strip to fix.Therefore, when utilizing method such as ultrasonic welding to engage, can not destroy a plurality of blades 3 realize low noises irregular spacing arrangement and can engage.So, can realize the multiple-winged vane wheel 28 of low noise and function admirable.

When impeller 31 being engaged, can make the hole 27 of demarcation strip 2 of ring-type chimeric with chimeric status with the discoid demarcation strip 29 of the impeller 31 of adjacency with methods such as ultrasonic welding again.So impeller 31 tails off with skew, the inclination in the axle center of the impeller 31 of adjacency when ultrasonic welding, therefore can improve multiple-winged vane wheel 28 balance when rotated.

Again, carry out the discoid demarcation strip 29 of the impeller 31 after the ultrasonic welding etc., owing to be contained in demarcation strip 2 inner faces of ring-type of the impeller 31 of adjacency, therefore, by stopping up each demarcation strip 2 inside of multiple-winged vane wheel 28, impeller 31 is with regard to the pressure oscillation in the impeller 31 that does not influence adjacency.So, can improve the static pressure of multiple-winged vane wheel 28, can improve the performance of air conditioner.

Again and since with cast gate be arranged on demarcation strip central authorities, can become the mould structure of hot runner 38, can not have the shaping of runner, therefore can accelerate forming period and boost productivity.

Again, the internal diameter 11 of the demarcation strip 2 of ring-type and the size of discoid demarcation strip 29 can suitably be set according to the specification of the external diameter of multiple-winged vane wheel 28 desired performances, impeller, employed resin material, air conditioner.

Example 6

Referring now to Figure 28 and Figure 31 example 6 of the present invention is described.

Figure 28 and Figure 31 are the impellers of the multiple-winged vane wheel 14 of expression the invention process form.The impeller 19 usefulness thermoplastic resins of multiple-winged vane wheel 14 are made.For example be that GF is sneaked into the material of AS resin with the ratio of about 20-40% weight, or CF is sneaked into the material of AS resin with the ratio of about 30% weight, or GF is sneaked into the material that heat-resisting PS is a resin with the ratio of about 20-40% weight.

Impeller 19 constitutes by the demarcation strip 2 of ring-type with along a plurality of blades 3 that periphery is installed radially, and has the annular plate 17 that forms ring-type in the inboard of the front end of demarcation strip 2 opposition sides blade 3 and ring-type.The demarcation strip 2 of ring-type has chamfer shape on the corner part 59 that the side opposite by the direction that a plurality of blades 3 are housed and aperture surface are constituted.It for example is the chamfering of R0.5mm.

Figure 10 carries out chimeric flow chart with the impeller 19 of impeller 19 and adjacency before joint.The corner part 59 that makes chamfer shape becomes the targeting part of annular plate 17.

And, adopting this example, impeller 19 is boosted productivity easily with chimeric the becoming of the impeller 19 of adjacency.

Again, even annular plate 17 discoid demarcation strips 29 also have effect same, and even the chamfer shape of corner part 59 also has same effect for the C chamfering, chamfer dimesion can suitably be set according to the specification of multiple-winged vane wheel.

Example 7

Referring now to Figure 28 and Figure 32 example 7 of the present invention is described.

Figure 28 and Figure 32 are the diagrammatic sketch of impeller 19 of the multiple-winged vane wheel 14 of expression the invention process form.The impeller 19 usefulness thermoplastic resins of multiple-winged vane wheel 14 are made.For example be that GF is sneaked into the material of AS resin with the ratio of about 20-40% weight, or CF is sneaked into the material of AS resin with the ratio below about 30% weight, or GF is sneaked into the material that heat-resisting PS is a resin with the ratio of about 20-40% weight.

Impeller 19 has the demarcation strip 2 of ring-type and a plurality of blades 3 of installing radially along periphery, and the internal diameter 10 of the aperture surface of a plurality of blades is littler than the internal diameter 11 of the demarcation strip 2 of ring-type.The internal diameter of the demarcation strip 2 of ring-type was φ 77mm when for example impeller outer diameter was φ 95mm, and the internal diameter 10 of aperture surface is littler than φ 77mm.And, the hot melt rib 61 of welding usefulness is set on the face 60 of the parallel inside diameter 15 of demarcation strip a plurality of blades 3 and ring-type 2.

Adopt example, strengthen owing to impeller 19 engages the combination force that makes between impeller with the annular plate 17 of the impeller 19 of adjacency, so can improve the rerum natura intensity of multiple-winged vane wheel 14.

Again, even annular plate 17 discoid demarcation strips 29 also have same effect, and the internal diameter 11 of the demarcation strip 2 of ring-type can suitably be set according to the specification of the external diameter of multiple-winged vane wheel 14 desired performances, impeller, employed resin material, air conditioner.

Example 8

Referring now to Figure 14, Figure 20, Figure 22, Figure 23 example 9 of the present invention is described.

Figure 22, Figure 23 are the diagrammatic sketch of manufacture method of the multiple-winged vane wheel of expression the invention process form.Figure 22 is the sectional view of cold runner forming die with impeller 19 of annular plate 17.The inside diameter 15 of blade and the blade-side of annular plate 17 are formed by fixed side mold 23, and part is formed by movable side mold 24 beyond the outer diameter part 16 of blade and the blade-side of annular plate 17.

Figure 23 is a sectional view of opening state behind Figure 22 mould.The outer diameter part 16 of impeller becomes near thicker and the thin gradient of blade parts 50 annular plate 17 of the blade part 49 of demarcation strip side.And, on annular plate 17, be provided with and inject the cast gate 51 that resin is used.Resin is injected from cast gate 51 by running channel 52 and runner 53, resin flows to thicker blade part 49, demarcation strip 2 from thin blade part 50 by annular plate 17.

Again, Figure 14 is the sectional view of forming die of hot runner with impeller 31 of discoid demarcation strip 29, form the face 33 of the blade-side of the inside diameter 15 of blades and discoid demarcation strip 29 with fixed side mold 35, form the outer diameter part 16 of blades and the blade-side face 34 in addition of discoid demarcation strip 29 with movable side mold 36.

Therefore, the outer diameter part 16 of blade becomes near the thin gradient of blade part 50 of blade part 49 thicker, discoid demarcation strips of demarcation strip side.In addition, the cast gate 37 that injects resin is located at the central authorities of discoid demarcation strip 29, injects resins from cast gate 37 by resin storing section and hot runner 38.Resin flows to thicker blade part 49, demarcation strip 2 from thin blade part 50 by discoid demarcation strip 29.

Figure 20 is the sectional view of forming die of hot runner with impeller 41 of annular plate 17 and spoke 40.Form inside diameter 15 and the blade-side of annular plate 17 and the blade-side 43 of spoke 40 of blade with fixed side mold 45.Form part 44 beyond the blade-side of part and spoke 40 beyond the blade-side of the outer diameter part 16 of blades and annular plate 17 with movable side mold 46.

Therefore, the outer diameter part 16 of blade become that the blade part of demarcation strip side is 49 thicker, near the thin gradient of blade parts 50 the annular plate 17.In addition, the cast gate 47 that injects resin is located at the central part that spoke 40 intersects, injects resin from cast gate 47 by resin storing section and hot runner 48.Resin flows to thicker blade part 49, demarcation strip 2 from thin blade part 50 by spoke 40 and annular plate 17.

And, adopt this example, flow from the so-called thin blade 50 of blade front end by making resin, eliminate the scarce material injection that causes because of the resin fill deficiency.And, also eliminate the undue filling that causes to the over packing of blade because of resin.Therefore, can stably be shaped.

Again, flow to the little thicker blade part 49 of resistance from the big thin blade part 50 of resistance by making resin, near the little thicker blades 49 of resistance the demarcation strip 2 can be done thinly, Draft can be done little is below 2/1000.Therefore, can realize the lightweight of multiple-winged vane wheel, in the occasion of the indoor set 68 that multiple-winged vane wheel is arranged on air conditioner, even owing under because of heated states such as hot blasts, also can make the caused deflection of deadweight of multiple-winged vane wheel reduce, make changes in balance to reduce.That is to say, can keep the stable performance of multiple-winged vane wheel.

In addition, Draft can suitably be set according to the external diameter of the desired performance of multiple-winged vane wheel, impeller, axial length, employed resin material.

Example 9

Referring now to Figure 24-Figure 27 example 9 of the present invention is described.

Figure 24, Figure 25 are the diagrammatic sketch of manufacture method of the multiple-winged vane wheel impeller of expression the invention process form.

Figure 24 is the structure sectional view before the forming die of expression Figure 25 or Figure 23 the stretching out when opening.Side at the annular plate 17 of the impeller 19 that is shaped has the plate of stretching out 54 near the side view of annular plate 17, and is provided with between a plurality of blades 3 and stretches out pin 55.Figure 25 is the diagrammatic sketch after impeller 19 is stretched out, and makes and stretches out plate 54 and stretch out demarcation strip 2 and the annular plate 17 that pin 55 stretches out impeller 19 simultaneously with the plate 56 that stretches out of resin molding machine.

Figure 26 is the structure sectional view before forming die the stretching out when opening of expression Figure 14.The side of the discoid demarcation strip 29 of the impeller 31 after shaping has the plate of stretching out 57 near the side view of discoid demarcation strip 29, and is provided with between a plurality of blades 3 and stretches out pin 55.

Figure 27 is that expression makes impeller 31 stretch out the diagrammatic sketch of back state.The plate 56 that stretches out with resin molding machine makes to stretch out plate 57 and stretch out pin 55 and stretches out the demarcation strip 2 of impeller 31 and discoideus demarcation strip 29 simultaneously.

Adopt this example, stretch out pin 55 and annular plate 17 or discoid demarcation strip 29, when the stretching out of resin forming operation, in mould, can the part of blade 3 residually not arranged and can stably be shaped by what push 3 in blade with face.

Example 10

Referring now to Figure 33 example 10 of the present invention is described.

Figure 33 is the diagrammatic sketch of the impeller 62 with wheel hub 5 that the motor with multiple-winged vane wheel is fastenedly connected of expression the invention process form.Impeller 62 usefulness thermoplastic resins with wheel hub 5 that the motor with multiple-winged vane wheel is fastenedly connected are made.Thermoplastic resin for example is that GF is sneaked into the material of AS resin with the ratio of about 20-40% weight, or CF is sneaked into the material of AS resin with the ratio below about 30% weight, or GF is sneaked into the material that heat-resisting PS is a resin with the ratio of 20-40% weight.Impeller 62 has the end plate 6 of the wheel hub 5 that is fastenedly connected with motor and a plurality of blades 3 of installing radially along periphery.A plurality of blades 3 with the front-end face 63 of the blade of this end plate opposition side on have notch part 64.Notch part 64 has the width of regulation from outside diameter to internal side diameter.For example, when impeller outer diameter is φ 95mm, be 1mm axially.Carry out before making impeller 62 with wheel hub and impeller engages when chimeric, the hole 27 of the demarcation strip 2 of the ring-type of impeller becomes targeting part, and chimeric with the breach 64 of the front end of the blade 3 of the impeller 62 with wheel hub.

And, adopt this example, make impeller 62 engage preceding chimeric becoming with impeller and boost productivity easily with wheel hub.

In addition, the shape of breach 64 can suitably be set according to the specification of the external diameter of the desired performance of multiple-winged vane wheel, impeller, employed resin material, air conditioner.

Example 11

Referring now to Figure 34 example 10 of the present invention is described.

Figure 34 is the diagrammatic sketch of the end plate 6 with wheel hub 5 that the motor with multiple-winged vane wheel is fastenedly connected of expression the invention process form.End plate 6 usefulness thermoplastic resins with wheel hub 5 that the motor with multiple-winged vane wheel is fastenedly connected are made.Thermoplastic resin for example is that GF is sneaked into the material of AS resin with the ratio of 20-40% weight, or CF is sneaked into the material of AS resin with the ratio below about 30% weight, or GF is sneaked into the material that heat-resisting PS is a resin with the ratio of about 20-40% weight.

Annular plate 65 is formed at and the reciprocal side of motor annularly.Protuberance 66 is used for impeller the location when chimeric.For example, when the external diameter of impeller was φ 95mm, the location was about 1.5mm with the axial height of protuberance 66.And formation end plate 67.

The hole 27 of the demarcation strip 2 of the ring-type of impeller becomes targeting part, and the annular plate 65 of end plate 6 with wheel hub 5 is chimeric with it.And available location positions with protuberance 66.

Adopt this example, the end plate 67 with wheel hub is boosted productivity easily with chimeric the becoming of impeller before engaging.And, when impeller engages with impeller, the groove (not shown) of blade 3 that has the impeller of chimeric adjacency on the demarcation strip 2 of impeller utilizes the end plate 67 that has with the wheel hub of the chimeric protuberance 66 of this groove, makes the chimeric method generalization of the end plate 67 with impeller and wheel hub and boosts productivity.

Again, the specification of annular plate 65 and the location performance that can require according to multiple-winged vane wheel, the external diameter of impeller, employed resin material, air conditioner and suitably setting with the size of protuberance 66.

In addition, also can adapt with part beyond the outside dimension of impeller in the above-mentioned example, and, with the thermoplastic resin beyond the example and add material and also can obtain same effect.In addition, as the joint method of impeller, though be illustrated with ultrasonic welding, also can be with other joint method.Again, though on end plate, be provided with in the above-mentioned example the axle, even on impeller, be provided with the axle also can obtain same effect.Though on end plate, be provided with and the fixing wheel hub of motor, wheel hub be set on impeller can obtain same effect again.

Again, the shape of the number of the shape of the shape of the amount of extending vertically of the internal diameter 11 of the demarcation strip 2 of ring-type, protuberance 12, annular plate 17, discoid demarcation strip 29, spoke 40, heavy section 58 can obtain same effect according to the specification difference of the external diameter of the desired performance of multiple-winged vane wheel, impeller, employed resin material, air conditioner.

Claims

1. multiple-winged vane wheel, it comprises:

Equidistant radially along periphery or unequal-interval ground is installed a plurality of blades (3);

Have the demarcation strip (2) with the ring-type of the embedding part of described a plurality of blades of adjacency, described demarcation strip (2) is integrally formed with described a plurality of blades (3);

Be located at the end plate (6) on the end of described multiple-winged vane wheel, it has the wheel hub (5) that is fastenedly connected with described motor;

Be located at the end plate (9) on the other end of described multiple-winged vane wheel, described end plate (9) is maintained fixed running shaft (8); It is characterized in that,

The aperture surface internal diameter (10) of described a plurality of blade (3) is bigger than the internal diameter (11) of described demarcation strip (2).

2. multiple-winged vane wheel as claimed in claim 1 is characterized in that, inside diameter that described a plurality of blades (3) are formed by the internal diameter less than the demarcation strip (2) of described ring-type to the external diameter side direction from aperture surface and the outer diameter part beyond the described inside diameter are constituted.

3. multiple-winged vane wheel as claimed in claim 2, it is characterized in that, the width of described inside diameter diminishes gradually from demarcation strip (2) side of the tip side opposite with the demarcation strip (2) of described ring-type to described ring-type, and the width of described outer diameter part becomes big from the tip side opposite with the demarcation strip (2) of described ring-type gradually to the demarcation strip side of described ring-type.

4. multiple-winged vane wheel as claimed in claim 2, it is characterized in that, described inside diameter with the end face side of the blade of demarcation strip (2) opposition side of described ring-type, combine with the annular plate (17) of ring-type, the external diameter of the annular plate of described ring-type (17) is less than the internal diameter of the demarcation strip (2) of described ring-type.

5. multiple-winged vane wheel as claimed in claim 4 is characterized in that, the annular plate of described ring-type (17) is shaped integratedly with described blade (3).

6. multiple-winged vane wheel as claimed in claim 4 is characterized in that, the annular plate of described ring-type (17) has a plurality of spokes (40) to the central direction extension of combination at the center.

7. multiple-winged vane wheel as claimed in claim 5 is characterized in that, the annular plate of described ring-type (17) has a plurality of spokes (40) at central direction.

8. multiple-winged vane wheel as claimed in claim 4, it is characterized in that, the annular plate of described ring-type (17) is than the connecting part of described inside diameter and described blade (3) internal side diameter more, has heavy section (58), the thicker formation of thickness at described inside diameter of direction ratio of its demarcation strip (2) and place, the connecting part of described blade (13) in described ring-type.

9. multiple-winged vane wheel as claimed in claim 2, it is characterized in that, described inside diameter with the vane end faces side of the opposition side of the demarcation strip (2) of described ring-type, combine with discoid demarcation strip (29), the external diameter (30) of described discoid demarcation strip (29) is less than the internal diameter (11) of the demarcation strip (2) of described ring-type.

10. multiple-winged vane wheel as claimed in claim 9 is characterized in that, described discoid demarcation strip (29) is shaped integratedly with blade (3).

11. multiple-winged vane wheel as claimed in claim 9, it is characterized in that, described discoid demarcation strip (29) is than the connecting part of described inside diameter and described blade (3) internal side diameter more, have heavy section, the direction thickness of its demarcation strip in described ring-type (2) is also thicker than the thickness at the place, connecting part of described inside diameter and described blade.

12. multiple-winged vane wheel as claimed in claim 1 is characterized in that, described end plate (6) has from the notch part (64) of outside diameter to internal side diameter at described blade (3) and end face described end plate (6) opposition side.

13. multiple-winged vane wheel as claimed in claim 1, it is characterized in that, described end plate (6) or described end plate (9) with motor mounting side or running shaft stretch out reciprocal of side, have chimeric with the embedding part of the demarcation strip (2) of described ring-type and the location that impeller is positioned at assigned position with protuberance (66).

14. multiple-winged vane wheel as claimed in claim 2 is characterized in that, the inside diameter of described a plurality of blades (3) has welding hot melt rib (61) on the face (60) parallel with the demarcation strip (2) of described ring-type.

15. manufacture method as each described multiple-winged vane wheel in the claim 1 to 14, it is characterized in that, for a plurality of blades (3), inject resin from form the annular plate (17) of ring-type or the regulation position of discoid demarcation strip (29) or spoke (40) at front end, and resin being formed from the thin thicker side flow of a side direction of described blade with demarcation strip (2) opposition side of a plurality of ring-types.

16. the manufacture method of multiple-winged vane wheel as claimed in claim 2 is characterized in that, has the operation that fixed side (23,35,45) with forming die and movable side (24,36,46) are shaped to the inside diameter and the outer diameter part of blade (3) respectively.

17. manufacture method as each described multiple-winged vane wheel in the claim 1 to 14, it is characterized in that having being pushed the operation of stretching out forming the annular plate (17) of ring-type or discoid demarcation strip (29) or the spoke faces vertical (40) with axle center multiple-winged vane wheel with the front end of the demarcation strip opposition side of ring-type.