CN1266150A - Impeller of blower and its making method, and the blower - Google Patents
Impeller of blower and its making method, and the blower Download PDFInfo
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- CN1266150A CN1266150A CN00104125A CN00104125A CN1266150A CN 1266150 A CN1266150 A CN 1266150A CN 00104125 A CN00104125 A CN 00104125A CN 00104125 A CN00104125 A CN 00104125A CN 1266150 A CN1266150 A CN 1266150A
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- layer
- foam forming
- blade
- impeller
- forming layer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/30—Manufacture with deposition of material
- F05D2230/31—Layer deposition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/612—Foam
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a impeller of blower and its making method, and the blower. The impeller having a large aperture is obtained easily. As a result, the blower is enhanced in performance. Having a hub and vanes projecting from the hub, the vanes have multiple layers, and at least one of the multiple layers has a foamed molded layer. This impeller is used in a blower. This blower is used in an outdoor unit of an air conditioner.
Description
The present invention relates to a kind of blower, in more detail, relate to a kind of impeller and manufacture method thereof that is used for blower.
In the past, the used impeller of blower was by the stress metal manufacturing.Particularly, in recent years, the used impeller of blower utilizes the ester moulding manufacturing, and has begun to use in large quantities this resinous impeller.In order to improve the performance of this blower,, proposed to have impeller according to the shape of this blade Design Theory according to the theoretical section configuration that designs impeller blade of blade.For example, the used impeller diameter of the outdoor unit of domestic air conditioner is 300mm, and the maximum ga(u)ge of blade is 15mm.
But, under the situation of the impeller that has this thickness by use resin injection mould-forming, because the pore that thermal shrinkage was directed at or the bending of resin can produce concavo-convex on blade surface.To have the impeller that has formed this concavo-convex blade when being used for air conditioner, and can produce turbulent flow along the mobile of laminar flow of blade surface, thereby can increase noise.On the other hand, in order to prevent aforementioned gas holes and bending, the cool time when prolonging injection molding forming, the method that makes it slowly to cool off have been adopted.But this method can increase forming period, and its result can make productivity reduce.
In recent years, hollow forming method, and the scheme of two operation multilevel shaping methods have been proposed to adopt again.The hollow forming method of impeller comprises the operation of extrusion resin in the metal pattern die cavity and is pressed into inert gas such as compressed nitrogen afterwards to die cavity, forms the operation of hollow portions in a plurality of blade interior.The multilevel shaping method of impeller comprises the operation of the impeller that is shaped at twice.
But, because impeller is a solid of rotation, so need a plurality of blades to keep the shape of balance mutually.And in described hollow forming method, the thickness of blade is difficult to correctly to obtain the thickness stipulated.That is, the hollow space of blade can not utilize the dependency relation of air pressure and Resin Flow to control.Therefore, be difficult to obtain have the blade of the shape of mutual maintenance balance.Like this, the hollow forming method just can not be expected the completeness equal with injection moulding method.In addition, the common multilevel shaping method parts of moderate thickness that can only be shaped.In order to improve the performance of air conditioner, need bigbore impeller.For this reason, under the situation of utilizing multilevel shaping method shaping heavy caliber impeller, the maximum ga(u)ge of heavy section is wanted thickening.Therefore, the weight of impeller will increase the weight of, its result, and when utilizing motor to make the impeller rotation, in the driving of motor, it is big that loads such as driving moment will become.
The invention provides good, the light and high performance impeller of a kind of productivity.
The impeller that is used for blower of the present invention comprises:
Wheel hub (hub),
From the outstanding blade of described wheel hub;
Described blade has multilayer, and,
One deck at least in the described multilayer has the foam forming layer.
The manufacture method that is used for the impeller of blower of the present invention comprises:
Shaping wheel hub and from first operation of the first outstanding blade layer of described wheel hub,
Second blade that will have a foam forming layer amasss second operation on the described first blade layer layer by layer.
Blower of the present invention comprises:
Motor,
The wheel hub that is connected with described motor,
From the outstanding blade of described wheel hub;
Described blade has rigid layer and the foam forming layer of lamination on described rigid layer,
Described blade can rotate along with the driving of described motor.
The outdoor unit of air conditioner of the present invention comprises:
Heat exchanger,
Be arranged near the blower of described heat exchanger,
Described blower comprises:
Motor,
The wheel hub that is connected with described motor,
From the outstanding blade of described wheel hub;
Described blade has rigid layer and the foam forming layer of lamination on described rigid layer,
Described blade can rotate along with the driving of described motor.
According to said structure, can obtain having the impeller of the thickness of desired thickness, required slight weight, required heavy caliber and required shape.Its result can obtain having the blade of good wind pushing performance.And then can obtain having the blower of desirable wind pushing performance.Further can obtain having the air conditioner of good heat exchange performance.
Brief description of drawings is as follows:
Fig. 1 is the exploded stereogram of outdoor unit of air conditioner with blower of the impeller that has used one embodiment of the invention;
Fig. 2 is the stereoscopic figure of the impeller of blower of one embodiment of the invention;
Fig. 3 is the 6A-6B line sectional drawing of the blade of impeller shown in Figure 2.
The impeller of blower of one embodiment of the invention comprises: wheel hub (hub) and the blade with multilayer; And the one deck at least in the described multilayer has the foam forming layer, and one deck has rigid layer at least in addition.The foam forming layer is expressed as existing in the body layer of a plurality of spaces, a plurality of foaming portion, a plurality of hollow portions etc.The foam forming layer is shaped the moulding material that contains for example stabilizer or dilatant etc. and obtains.Rigid layer is represented layer anti-blast, that have high rigidity such as mechanical strength.Rigid layer is for example void-free plastics forming body, has the plastics forming body of rigidity or contain formed body of reinforcing material etc.This rigid layer is for example by common injection moulding method manufacturing.
According to this structure, can obtain having the impeller of the thickness of desired thickness, required slight weight, required heavy caliber and required shape.
It is desirable to especially, described blade has two-layer, and the one deck during this is two-layer has the foam forming layer.Can obtain having impeller with above-mentioned same performance according to this structure.
It is desirable to especially, described foam forming layer is arranged on face one side that air is peeled off with respect to sense of rotation.According to this structure, the face of accepting air has more rigidity than air release surface.Therefore, when the impeller high speed rotating, blast is accepted the face side joint by the air with rigidity and is subjected to, so but high speed rotating, even under the situation of high speed rotating, also can obtain good wind pushing performance.And then, the weight saving of air release surface side.Pretend to impeller integral body and can obtain light impeller.
It is desirable to especially, described foam forming layer has the thickness thicker than other layer.According to this structure, can obtain lighter impeller.
The manufacture method of the impeller of one embodiment of the invention comprises: utilize the operation of injection molding forming shaping rigid layer and the operation of foam forming.According to this structure, can continuous operation finish impeller.
It is desirable to especially, after utilizing injection molding forming to form rigid layer, implement foam forming rapidly.
It is desirable to especially, the first surface of rigid layer has the surface roughness Ra of about 50 μ m to 500 mu m ranges.Implement foam forming in this first surface side, the foam forming layer is engaged be arranged at this first surface side.Like this, be the suitable roughened surface of roughness by the first surface that makes rigid layer, the foam forming layer firmly is engaged on the rigid layer.Therefore, can fully guarantee to have the foam forming layer of heavy section and the bond strength of rigid layer.
It is desirable to especially, the expansion ratio of foam forming layer is 1.5 times～4 times.Do not produce the impeller of unfavorable condition when utilizing this expansion ratio that practicality can be obtained.
Describe exemplary embodiments of the present invention with reference to the accompanying drawings in detail.
Exemplary embodiments 1
Be used for exemplary embodiments of the present invention air conditioner blower impeller exploded perspective view as shown in Figure 1.The stereogram of the impeller of exemplary embodiments of the present invention as shown in Figure 2.The 6A-6B line sectional drawing of the blade of impeller shown in Figure 2 as shown in Figure 3.
Among Fig. 1, the outdoor unit body 1 of air conditioner has blower 10 and is arranged near this blower 10 heat exchanger 12.Blower 10 has fan electromotor 3 and impeller 2.Impeller 2 is fixed on the fan electromotor 3 by bolt and nut 4.By making blower 10 rotations, air is accepted face 15 sides from air and is sent to air release surface 16 sides.Utilize this air cooling that is transferred or reheat heat exchanger.
Among Fig. 2, the multi-disc blade 6 that impeller 2 has wheel hub 5 and gives prominence to from wheel hub 5.
As shown in Figure 3, blade 6 has as the rigid layer 7 of the first blade layer with as the foam forming layer 8 of the second blade layer.Among Fig. 3, by making the impeller rotation, blade 6 is subjected to air by rigid layer 7 side joints, and delivers to the direction of foam forming layer 8 side.Blade 6 centrifugal rotations.
Use contains the AES plastic materials of the glass fibre of 20wt%, utilizes injection molding forming, makes wheel hub 5 and rigid layer 7.AES represents acrylate and EPDM and cinnamic copolymer.EPDM represents EPT.Formed article has wheel hub 5 that is positioned at the center and three rigid layers 7 giving prominence to from wheel hub 5.The air release surface side 16 of rigid layer 7 has the surface roughness of 50 μ mRa.Rigid layer 7 has uniform wall thickness 2mm.
Then, behind shaping rigid layer 7, use the AES plastic materials of the microcapsule expansion agent of having added 1wt% rapidly,, foam forming layer 8 is set on the surface of rigid layer 7 by injection molding forming with thermal expansivity.In this case, foam forming layer 8 directly is bonded on the air release surface side 16 of rigid layer 7.It is 1.5 foam molding that foam forming layer 8 has expansion ratio.The foam forming layer 8 of foam forming directly is bonded on the rigid layer 7.Like this, made foam forming layer 8 with thick wall thickness.Foam forming is implemented by following method.At the temperature cylinder of forming machine is that 230 ℃, metal pattern cavity temperature are that the AES plastic materials that will contain dilatant is squeezed in the die cavity under 5 ℃ the condition.Afterwards, open model rapidly a little, so that the surface of contact of blade and metal pattern sharply cools off.Thereby form shell 18, simultaneously, foamed state was stable when implementation model was opened.The shell 18 that form this moment has the thickness of about 100 μ m.Foam forming layer 8 has a plurality of foamed cell.
The size of each foamed cell of foam forming layer 8 is for below about 1mm.
Like this, just made impeller 2 with rigid layer 7 and foam forming layer 8.The weight of the impeller of making is about 760g, and the thickness of the thickest portion of blade 6 is 20mm.The maximum boundary dimension of blade 2 is 400mm.
In addition, among Fig. 2, when the direction of arrow is sense of rotation, the upper side of air release surface side 16 expression blades 6.
Exemplary embodiments 2
Use contains the AES plastic materials of the glass fibre of 20wt%, utilizes injection molding forming, makes wheel hub 5 and rigid layer 7.Formed article has wheel hub 5 that is positioned at the center and three rigid layers 7 giving prominence to from wheel hub 5.The air release surface side 16 of rigid layer 7 has the surface roughness of 100 μ mRa.Rigid layer 7 has uniform wall thickness 2mm.
Then, behind shaping rigid layer 7, use the AES plastic materials of the microcapsule expansion agent of having added 2.5wt% rapidly,, foam forming layer 8 is set on the surface of rigid layer 7 by injection molding forming with thermal expansivity.It is 2.0 foam molding that foam forming layer 8 has expansion ratio.The foam forming layer 8 of foam forming directly is bonded on the rigid layer 7.Like this, just, produce foam forming layer 8 with thick wall thickness.Foam forming utilization and exemplary embodiments 1 identical method is carried out.
Like this, just made impeller 2 with rigid layer 7 and foam forming layer 8.The weight of the impeller of making is about 670g, and the thickness of the thickest portion of blade 6 is 20mm.The maximum boundary dimension of blade 2 is 400mm.
Exemplary embodiments 3
Use contains the AES plastic materials of the glass fibre of 20wt%, utilizes injection molding forming, makes wheel hub 5 and rigid layer 7.Formed article has wheel hub 5 that is positioned at the center and three rigid layers 7 giving prominence to from wheel hub 5.The air release surface side 16 of rigid layer 7 has the surface roughness of 300 μ mRa.Rigid layer 7 has uniform wall thickness 2mm.
Then, behind shaping rigid layer 7, use the AES plastic materials of the microcapsule expansion agent of having added 4wt% rapidly,, foam forming layer 8 is set on the surface of rigid layer 7 by injection molding forming with thermal expansivity.It is 2.0 foam molding that foam forming layer 8 has expansion ratio.The foam forming layer 8 of foam forming directly is bonded on the rigid layer 7.Like this, made foam forming layer 8 with thick wall thickness.Foam forming utilization and described exemplary embodiments 1 identical method is carried out.
Like this, just made impeller 2 with rigid layer 7 and foam forming layer 8.The weight of the impeller of making is about 620g, and the thickness of the thickest portion of blade 6 is 20mm.In addition, the maximum boundary dimension of blade 2 is 400mm.
Exemplary embodiments 4
Use contains the AES plastic materials of the glass fibre of 20wt%, utilizes injection molding forming, makes wheel hub 5 and rigid layer 7.Formed article has wheel hub 5 that is positioned at the center and three rigid layers 7 giving prominence to from wheel hub 5.The air release surface side 16 of rigid layer 7 has the surface roughness of 500 μ mRa.Rigid layer 7 has uniform wall thickness 2mm.
Then, use the AES plastic materials of the microcapsule expansion agent of having added 6wt%,, foam forming layer 8 is set on the surface of rigid layer 7 by injection molding forming with thermal expansivity.It is 2.0 foam molding that foam forming layer 8 has expansion ratio.The foam forming layer 8 of foam forming directly is bonded on the rigid layer 7.Like this, made foam forming layer 8 with thick wall thickness.Foam forming utilization and described exemplary embodiments 1 identical method is carried out.
Like this, just made impeller 2 with rigid layer 7 and foam forming layer 8.The weight of the impeller of making is about 580g, and the thickness of the thickest portion of blade 6 is 20mm.In addition, the maximum boundary dimension of blade 2 is 400mm.
Exemplary embodiments 5
Use contains the AES plastic materials of the glass fibre of 20wt%, utilizes injection molding forming, makes wheel hub 5 and rigid layer 7.Formed article has wheel hub 5 that is positioned at the center and three rigid layers 7 giving prominence to from wheel hub 5.The air release surface side 16 of rigid layer 7 has the surface roughness of 800 μ mRa.Rigid layer 7 has uniform wall thickness 2mm.
Then, use the AES plastic materials of the microcapsule expansion agent of having added 8wt%,, foam forming layer 8 is set on the surface of rigid layer 7 by injection molding forming with thermal expansivity.It is 5.0 foam molding that foam forming layer 8 has expansion ratio.The foam forming layer 8 of foam forming directly is bonded on the rigid layer 7.Like this, made foam forming layer 8 with thick wall thickness.Foam forming utilization and described exemplary embodiments 1 identical method is carried out.
Like this, just made impeller 2 with rigid layer 7 and foam forming layer 8.The weight of the impeller of making is about 550g, and the thickness of the thickest portion of blade 6 is 20mm.In addition, the maximum boundary dimension of blade 2 is 400mm.
(comparative example 1)
Use contains the AES plastic materials of the glass fibre of 20wt%, utilizes injection molding forming, makes wheel hub 5 and rigid layer 7.The material that this AES plastic materials and exemplary embodiments 1 that contains the glass fibre of 20wt% is used is identical.This formed article has wheel hub 5 that is positioned at the center and three rigid layers 7 giving prominence to from wheel hub 5.Rigid layer 7 has the shape identical with the blade made 6 in the exemplary embodiments 1.That is, the blade 6 of this comparative example only is made of rigid layer 7.
The weight of the impeller of making is about 1150g, and the thickness of the thickest portion of blade 6 is 20mm.The maximum boundary dimension of blade 2 is 400mm.
The impeller that this comparative example 1 is made has the heavy weight of making than exemplary embodiments 1-5 of impeller.
In above-mentioned various exemplary embodiments, the expansion ratio of foam molding that is engaged in this rigid layer 7 is big more, and the air release surface side 16 of rigid layer 7 just has big more surface roughness.According to this structure, when the foam forming layer 8 that will have more weak rigidity is engaged in rigid layer 7, the bond strength of this rigid layer 7 and foam forming layer 8 will be improved.
In the impeller that above-mentioned exemplary embodiments 1 to 5 is made, three blades 6 have the shape that meets design and the weight of regulation separately.Has the balance that meets design mutually on three blade 6 each comfortable shapes and the weight.
When being used on the blower of outdoor unit of air conditioner at the impeller that above-mentioned exemplary embodiments 1 to 5 is made, the blower that can obtain having required draft capacity.Even run up most, noise is also very low.Load moment when in addition, blower starts is also little.
Relative therewith, use the blower of the impeller of comparative example 1 manufacturing to compare with the impeller of exemplary embodiments manufacturing, need big starting torque.
In the present embodiment, the expansion ratio of foam forming layer is preferably about 1.5 times to about 4 times.When 1.5 times of expansion ratio less thaies,, can not bring into play big effect for the light-weighted purpose that realizes impeller.In addition, when expansion ratio surpassed 4 times, each foamed cell of foaming portion became big, and the unbalanced of foamed state also strengthened, its result, the tendency that exists the spin balancing of blower to reduce.And when expansion ratio surpassed 4 times, also there was the tendency of reduction in the mechanical strength of blade.
In exemplary embodiments, made blade 6 with maximum ga(u)ge 20mm and the impeller 2 of maximum boundary dimension 400mm, but the method according to this invention can be made the impeller with bigger shape.For example, rigid layer with 3mm and the impeller of foam forming layer, blade and overall dimensions 700mm have been confirmed also can make with maximum ga(u)ge 30mm.
Use blower such, that have the impeller of big shape to have and above-mentioned identical desirable wind pushing performance and effect.
That is, in impeller of the present invention, the foam forming layer has the bigger volume of specific rigidity layer.The weight of this foam forming layer is lower than the weight of rigid layer significantly.Therefore, when manufacturing had the impeller of big blade, even strengthen the shape that has than the foam forming layer of light weight, the increase degree of this impeller weight was also more slow.Therefore, can make the blower of blade with bigger boundary dimension.
Using other plastic materialss to replace the AES plastic materials that uses in the exemplary embodiments also can make and exemplary embodiments 1 impeller same, that have rigid layer 7 and foam forming layer 8.Though do not have particular determination as other plastic materialss, for example can use: acrylic resin, polycarbonate (PC), polyamide resin, polyester resin, polyacetal resin, acrylic resin, polystyrene resin, ethylene propylene rubber or their plastic materialss such as copolymer.
Plastic materials especially it is desirable to have the material of good weathering resistance.Used at the blower of air conditioner under the situation of the impeller that utilizes this material forming with good weathering resistance, be arranged at when outdoor at the outdoor unit with air conditioner, this impeller with material forming of good weathering resistance can use with stable performance chronically.
The plastic materials that use contains other packing (filler) replaces the glass fibre that uses in the exemplary embodiments and also can make and exemplary embodiments 1 impeller same, that have rigid layer 7 and foam forming layer 8.Though do not have particular determination as other packings, can use inorganic powder, organic dust and fibrous powder etc.These packings have the function of the mechanical strength that improves rigid layer.
As dilatant or stabilizer, though there is not particular determination, the heating in the time of can using the material that produces gaseous matter when being shaped or utilize shaping produces the material of gaseous matter etc.
In above-mentioned exemplary embodiments, after utilizing injection molding forming to form rigid layer, form the foam forming layer rapidly, thereby rigid layer and foam forming layer are engaged, but be not limited to this method, also can use other manufacture method.For example.The foam forming layer that also can use binder etc. to make rigid layer and form in addition engages.
In addition, also can utilize compression forming and transfer feed shaping to wait other mould-forming method to make rigid layer and foam forming layer.But injection moulding method has best batch process.
By above-mentioned exemplary embodiments as can be known, the foam forming layer can be realized the character of thick thickness and light weight two aspects.Therefore, can easily obtain having the impeller of big bore.Its result can make the blower high performance.
The blower of present embodiment is the outdoor unit that is used for air conditioner, but is not limited thereto, and can be used for the blower of the cooling unit of electronic equipment, the air cycle machine that makes air circulation, generation wind etc.But, when being used for the blower of the large-sized impeller of needs, especially can improve above-mentioned effect.
Claims (27)
1, a kind of impeller that is used for blower comprises:
Wheel hub (hub) (5),
From the outstanding blade (6) of described wheel hub;
It is characterized in that described blade has multilayer (7,8), and,
One deck at least in the described multilayer has foam forming layer (8).
2, impeller as claimed in claim 1 is characterized in that,
Described multilayer (7,8) has the double-layer structure of the first layer (8) and the second layer (7),
Described first layer has described foam forming layer (8).
3, impeller as claimed in claim 2 is characterized in that,
Described foam forming layer is arranged on the air release surface side (16) with respect to the sense of rotation of described blower.
4, as claim 2 or 3 described impellers, it is characterized in that,
Described foam forming layer has the thickness than described second bed thickness.
5, impeller as claimed in claim 1 is characterized in that,
Described multilayer has rigid layer (7) and the described foam forming layer (8) of lamination on described rigid layer,
Described rigid layer has than the strong mechanical strength of described foam forming layer,
Described foam forming layer has the proportion littler than described rigid layer.
6, impeller as claimed in claim 1 is characterized in that,
Described multilayer has rigid layer (7), lamination at the described foam forming layer (8) on the described rigid layer be formed at shell (18) on the described foam forming laminar surface.
7, impeller as claimed in claim 1 is characterized in that,
Described blade has a plurality of blades (6),
Described a plurality of blade is that the center is symmetrical arranged with described wheel hub.
8, impeller as claimed in claim 1 is characterized in that,
Described foam forming layer has about 1.5 times of expansion ratios to about 4 times of scopes.
9, impeller as claimed in claim 1 is characterized in that,
Described multilayer has rigid layer and the described foam forming layer of lamination on described rigid layer,
Described rigid layer has the plastics forming body,
Described foam forming layer has the foam molding of plastics.
10, impeller as claimed in claim 1 is characterized in that,
The first surface of described rigid layer has the surface roughness of Ra 50 μ m to Ra 500 mu m ranges.
Described foam forming layer directly is bonded on the described first surface.
11, impeller as claimed in claim 1 is characterized in that,
Described foam forming layer has a plurality of foamed cell.
12, impeller as claimed in claim 1 is characterized in that,
Described blower is used for the outdoor unit of air conditioner.
13, a kind of manufacture method that is used for the impeller of blower is characterized in that, comprising:
Shaping wheel hub (5) and from first operation of the first outstanding blade layer (7) of described wheel hub, and
Second operation of second blade layer (8) lamination on the described first blade layer that will have foam forming layer (8).
14, manufacture method as claimed in claim 13 is characterized in that,
Described first operation has the operation with the time of its injection mould-forming.
15, as claim 13 or 14 each described manufacture methodes, it is characterized in that,
Described first operation has the operation of the described first blade layer that is shaped, the surface roughness of first surface that makes the described first blade layer in Ra 50 μ m to Ra 500 mu m ranges,
Described second operation has the operation that described foam forming layer is engaged in described first surface.
16, manufacture method as claimed in claim 15 is characterized in that,
Described first surface is the air release surface side (16) with respect to the sense of rotation of described blower.
17, as each described manufacture method of claim 13 to 15, it is characterized in that,
Described second operation has the operation of the described second blade layer that is shaped, and the expansion ratio that makes described foam forming layer is about 1.5 times to about 4 times.
18, as each described manufacture method of claim 13 to 17, it is characterized in that,
Described second operation also has the operation that forms shell (18) on described foam forming layer (8) surface.
19, as each described manufacture method of claim 13 to 18, it is characterized in that,
Described second operation has and will comprise the operation of time of its injection mould-forming at least a in stabilizer and the dilatant.
20, as each described manufacture method of claim 13 to 19, it is characterized in that,
Described second operation has with the be shaped operation of described foam forming layer of the mode that contains a plurality of foamed cell.
21, as each described manufacture method of claim 13 to 20, it is characterized in that,
Described blower is used for the outdoor unit of air conditioner.
22, a kind of blower comprises:
Motor (3),
The wheel hub (5) that is connected with described motor,
From the outstanding blade (6) of described wheel hub;
It is characterized in that described blade has rigid layer (7) and the foam forming layer (8) of lamination on described rigid layer,
Described blade can rotate along with the driving of described motor.
23, blower as claimed in claim 22 is characterized in that,
Described rigid layer has the plastics forming body,
Described foam forming layer has the expandable plastic formed body that comprises a plurality of foamed cell.
24, blower as claimed in claim 22 is characterized in that,
Described foam forming layer is arranged on air release surface side (16) with respect to the sense of rotation of described blade.
25, a kind of outdoor unit of air conditioner comprises:
Heat exchanger (12), and
Be arranged at the blower (10) of described heat exchanger rear side,
It is characterized in that described blower comprises:
Motor (3),
The wheel hub (5) that is connected with described motor, and
From the outstanding blade (6) of described wheel hub;
Described blade has rigid layer (7) and the foam forming layer (8) of lamination on described rigid layer,
Described blade can rotate along with the driving of described motor.
26, the outdoor unit of air conditioner as claimed in claim 25 is characterized in that,
Described rigid layer has the plastics forming body,
Described foam forming layer has the expandable plastic formed body that comprises a plurality of foamed cell.
27, the outdoor unit of air conditioner as claimed in claim 25 is characterized in that,
Described foam forming layer is arranged on air release surface side with respect to the sense of rotation of described blade.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11059788A JP2000257592A (en) | 1999-03-08 | 1999-03-08 | Impeller for air blower and manufacture thereof |
| JP059788/1999 | 1999-03-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1266150A true CN1266150A (en) | 2000-09-13 |
| CN1116522C CN1116522C (en) | 2003-07-30 |
Family
ID=13123387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00104125A Expired - Fee Related CN1116522C (en) | 1999-03-08 | 2000-03-08 | Impeller of blower and its making method, and the blower |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1035330B1 (en) |
| JP (1) | JP2000257592A (en) |
| CN (1) | CN1116522C (en) |
| DE (1) | DE60015628T2 (en) |
| ES (1) | ES2232339T3 (en) |
| MY (1) | MY122606A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687638A (en) * | 2011-07-13 | 2014-03-26 | 费雪派克医疗保健有限公司 | Impeller and motor assembly |
| US10137264B2 (en) | 2011-07-13 | 2018-11-27 | Fisher & Paykel Healthcare Limited | Respiratory assistance apparatus |
| US10471225B2 (en) | 2012-12-18 | 2019-11-12 | Fisher & Paykel Healthcare Limited | Impeller and motor assembly |
| US11401974B2 (en) | 2017-04-23 | 2022-08-02 | Fisher & Paykel Healthcare Limited | Breathing assistance apparatus |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1741933B1 (en) * | 2005-07-04 | 2019-03-06 | MAHLE Behr GmbH & Co. KG | Rotor and fabricating method thereof |
| CN102022377B (en) * | 2005-08-30 | 2012-11-28 | 台达电子工业股份有限公司 | Fan and fan blades |
| DE202010011507U1 (en) * | 2010-08-18 | 2010-11-04 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Two-impeller |
| JP6132380B2 (en) * | 2012-02-06 | 2017-05-24 | ミネベアミツミ株式会社 | Impeller structure of axial fan |
| DE102022200940A1 (en) | 2022-01-28 | 2023-08-03 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Fan wheel of a motor vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1048479A (en) * | 1959-10-17 | 1966-11-16 | Rolls Royce | Improvements in or relating to blades, vanes or struts for gas turbine engine axial flow compressors |
| US3647317A (en) * | 1970-03-19 | 1972-03-07 | Fluor Prod Co Inc | Fiberglass fan assembly |
| GB2240588B (en) * | 1990-01-31 | 1994-08-03 | Toshiba Kk | Ventilating fan |
| US5392514A (en) * | 1992-02-06 | 1995-02-28 | United Technologies Corporation | Method of manufacturing a composite blade with a reinforced leading edge |
| DE4234292A1 (en) * | 1992-10-12 | 1994-04-14 | Behr Gmbh & Co | Axial-flow fan with plastics blades and hub - has hub divided in peripheral direction into parts, whose number corresponds proportionally to that of blades, and supports integrally moulded blade |
| GB2279114A (en) * | 1993-06-15 | 1994-12-21 | Nuaire Ltd | Fan impeller blade |
| AU1362297A (en) * | 1996-12-11 | 1998-07-03 | Springer Carrier S/A | Condensate drain path for a room air conditioner |
-
1999
- 1999-03-08 JP JP11059788A patent/JP2000257592A/en active Pending
-
2000
- 2000-03-01 MY MYPI20000797A patent/MY122606A/en unknown
- 2000-03-02 ES ES00104398T patent/ES2232339T3/en not_active Expired - Lifetime
- 2000-03-02 EP EP00104398A patent/EP1035330B1/en not_active Expired - Lifetime
- 2000-03-02 DE DE60015628T patent/DE60015628T2/en not_active Expired - Fee Related
- 2000-03-08 CN CN00104125A patent/CN1116522C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687638A (en) * | 2011-07-13 | 2014-03-26 | 费雪派克医疗保健有限公司 | Impeller and motor assembly |
| CN103687638B (en) * | 2011-07-13 | 2017-05-10 | 费雪派克医疗保健有限公司 | Impeller and motor assembly |
| US10137264B2 (en) | 2011-07-13 | 2018-11-27 | Fisher & Paykel Healthcare Limited | Respiratory assistance apparatus |
| US10286167B2 (en) | 2011-07-13 | 2019-05-14 | Fisher & Paykel Healthcare Limited | Impeller and motor assembly |
| US11571536B2 (en) | 2011-07-13 | 2023-02-07 | Fisher & Paykel Healthcare Limited | Impeller and motor assembly |
| US10471225B2 (en) | 2012-12-18 | 2019-11-12 | Fisher & Paykel Healthcare Limited | Impeller and motor assembly |
| US11534565B2 (en) | 2012-12-18 | 2022-12-27 | Fisher & Paykel Healthcare Limited | Impeller and motor assembly |
| US11992613B2 (en) | 2012-12-18 | 2024-05-28 | Fisher & Paykel Healthcare Limited | Impeller and motor assembly |
| US11401974B2 (en) | 2017-04-23 | 2022-08-02 | Fisher & Paykel Healthcare Limited | Breathing assistance apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1035330B1 (en) | 2004-11-10 |
| EP1035330A3 (en) | 2002-05-08 |
| DE60015628T2 (en) | 2005-11-10 |
| DE60015628D1 (en) | 2004-12-16 |
| ES2232339T3 (en) | 2005-06-01 |
| JP2000257592A (en) | 2000-09-19 |
| EP1035330A2 (en) | 2000-09-13 |
| CN1116522C (en) | 2003-07-30 |
| MY122606A (en) | 2006-04-29 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20030730 Termination date: 20100308 |