CN105793575A - Bladed wheel for fan - Google Patents
Bladed wheel for fan Download PDFInfo
- Publication number
- CN105793575A CN105793575A CN201480065273.2A CN201480065273A CN105793575A CN 105793575 A CN105793575 A CN 105793575A CN 201480065273 A CN201480065273 A CN 201480065273A CN 105793575 A CN105793575 A CN 105793575A
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- CN
- China
- Prior art keywords
- flabellum
- impeller
- parts
- flabellum parts
- component units
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
- F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
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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
-
- 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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
- F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
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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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
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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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/665—Sound attenuation by means of resonance chambers or interference
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The purpose of the present invention is to provide a low noise, inexpensive bladed wheel that removes or reduces blade-passing frequency noise. A bladed wheel for a fan, which is formed by creating a constituent unit by forming a plurality of blade members in a cylinder on a disc-shaped mounting plate and connecting the blade members of the constituent unit to the disc-shaped mounting plate of another constituent unit, is configured so that: fitting grooves into which the blade member tips fit are provided, in a number equal to the number of blade members, on the face opposite the side where the blade members of the disc-shaped mounting plate are formed; the position of the fitting groove is shifted with respect to the position of the blade member on the disk-shaped mounting plate; and each constituent unit is connected by fitting the blade member tip into the fitting groove.
Description
Technical field
The present invention relates to a kind of impeller for pressure fan such as through-flow pressure fan.
Background technology
In recent years, in order to coordinate environmental conservation and resource-effective trend, will promoting pressure fan performance, need to make impeller lightweight, impeller is in the urgent need to low noise and low vibration simultaneously.
First the composition of the impeller of prior art is described.As shown in figure 11, previous impeller 200 comprises the Component units 202 of multiple impeller, the fixing plate 205 of projection seat side discs shape and axle portion 206 and protruding base part 207.Component units 202 comprises disc-shaped part 203 and flabellum 204.Axle portion 206 is installed on the disc-shaped part 203 of the Component units 202 of a side end of impeller 200.The fixing plate 205 of projection seat side discs shape is installed on the flabellum component side of the Component units of the end side of impeller 200.Protruding base part 207 is arranged at the fixing plate 205 of projection seat side discs shape.Hereinafter, this impeller is called previous product.
In order to this kind of previous impeller realizes low noise, it is especially desirable to eliminate or reduce Nz sound.So-called Nz sound, corresponds to the fan leaf number of blower-use impeller and rotating speed and the peak value sound that produces.Because Nz sound is the peak value sound of characteristic frequency, once produce, acoustically easily it is sick of.In order to reduce this Nz sound, patent documentation 1 proposes a kind of following impeller.
Impeller described in patent documentation 1 is described.The flabellum of impeller 300 presents shape as shown in figure 12, and multiple flabellums 304 are cylindrically arranged on Component units 302.Propose to make to be integrally attached to the flabellum 304 of the discoid fixing plate 303 of Component units, integrally formed with the state that its other end reverses relative to deviation angle with one end, multiple this kind of Component units are connected and forms impeller.But, the impeller of patent documentation 1 forms step and the mould complexity of the Component units comprising its flabellum, and impeller cost increases.Hereinafter, this impeller is called existing product.
[background technology document]
[patent documentation]
[patent documentation 1] Japanese Patent Laid-Open 08-049689
Summary of the invention
[problem that invention to solve]
The present invention completes in view of described practical situation, its object is to the low cost impeller providing a kind of noise low and eliminating or reduce Nz sound.
[solving the means of problem]
In order to solve described problem, the impeller of the 1st invention is on disc-shaped part, cylindrically shape multiple flabellum parts, make Component units, the air feeder vane wheel flabellum parts of described Component units being connected to the described disc parts of another Component units and formed, it is characterized in that: at the opposing face being formed with flabellum component side of described discoid fixing plate, according to the quantity identical with described flabellum parts, the embeded slot chimeric for flabellum member forward end is set, the position of described embeded slot offsets relative to the position of the described flabellum parts on described disc-shaped part, chimeric described flabellum member forward end portion in described embeded slot, and connect each Component units.
Impeller according to the 1st invention, embodies following effect.It is configured to, shape multiple Component units, the opposing face being formed with flabellum component side at the disc-shaped part of Component units, according to the quantity identical with flabellum parts, the embeded slot chimeric for flabellum member forward end is set, the position of described embeded slot offsets relative to the position of the described flabellum parts on described disc-shaped part, chimeric described flabellum member forward end portion in described embeded slot, and connects each Component units.Thus, the mould manufacturing impeller with prior art is compared, and mould structure when impeller shapes significant becomes simple.Therefore, comparing with the impeller of prior art, the impeller of the present invention is significant becomes low cost.
Additionally, in the impeller of the 1st invention, the embeded slot of the disc-shaped part of Component units is to configure relative to the skew of flabellum member forward end position, so the front end of flabellum parts is to reverse to insert.Therefore, the material of flabellum parts (Component units) preferably has the raw material of flexibility, even if being applied with the deformation such as torsion without producing be full of cracks etc..Such as, it is set to the synthetic resin with flexibility, and the gauge of flabellum parts is set to prior art level, it is possible to suppress as level same as the prior art Nz sound.
According to the 1st invention, the impeller of the 2nd invention is characterised by: the material of the flabellum parts of impeller is set to the composite of synthetic resin material and glass fibre, the average wall thickness of the flabellum parts of impeller is formed in the scope of 0.3～0.8mm, makes orientation (oriented) in the face, surface of flabellum parts of the glass fibre contained by flabellum parts further.
The raw material of flabellum parts is set to composite by the impeller of the 2nd invention, and the wall thickness making flabellum parts when being not result in intensity and reducing is thinning.On the other hand, the thinning reduction being unfavorable for Nz sound of the wall thickness of flabellum parts.But, the content of the 1st invention is used, it is possible to the level of Nz sound is set to the equal level with the impeller of prior art.Additionally, the forming die structure of described impeller is simple.Further, described impeller cost is low.
Impeller according to the 2nd invention, also embodies following effect.In the impeller of the 2nd invention, the material of its flabellum parts is the composite of synthetic resin material and glass fibre, and the average wall thickness thin-walled of flabellum parts turns to 0.3～0.8mm.Therefore, the orientation in the face, surface of flabellum parts of the glass fibre contained by flabellum parts.Constitute impeller in this way, and previous product and existing condition ratio, it is possible to make it lightweight be quantified as less than half.Flabellum parts thin-walled property and lightweight but be not result in reducing as the performance of impeller such that it is able to reduce the power being used for driving impeller.Additionally, the wall thickness of flabellum parts is previous less than half, therefore the cost of fee of material also becomes less than half.It addition, the average wall thickness thin-walled of the flabellum parts of the present invention turns to 0.3mm to 0.8mm, not only weight is lighter, moreover it is possible to allow the glass fibre orientation in the face, surface of flabellum parts in composite, thus promoting the intensity of these flabellum parts further.Therefore, when the torsion of flabellum member forward end being fitted together to embeded slot in order to embody the effect of the present invention, without the unfavorable condition producing such as flabellum component breakage.
According to the 2nd invention, the impeller of the 3rd invention is characterised by: the material of flabellum parts is set to the composite of synthetic resin material and glass fibre, and is set to the resin composite materials that containing ratio is weight rate 10% to 40% of glass fibre.
The impeller of the 3rd invention is set to the composite of synthetic resin material and glass fibre, and the containing ratio being set to glass fibre becomes the resin composite materials of 10% to 40% in weight rate.Therefore, the effect of the 2nd invention can not only be embodied, moreover it is possible to embody following effect.Even if the average wall thickness thin-walled of the flabellum parts of impeller turns to 0.3mm to 0.8mm, also can configure glass fibre in the face of flabellum parts, therefore, it is possible to promote the intensity of flabellum parts.
According to the 2nd invention or the 3rd invention, the impeller of the 4th invention is characterised by: the material of flabellum parts is set to the composite of synthetic resin material and glass fibre, and the coefficient of elasticity (E ') in the direction, face, surface of these flabellum parts is 2.5 × 109Pa～1.2 × 1010Pa.
In addition, in the impeller of the 4th invention, the material of flabellum parts is set to the composite of synthetic resin material and glass fibre, uses the resin material that coefficient of elasticity (E ') is 2.5 × 109Pa～1.2 × 1010Pa in the direction, face, surface of these flabellum parts and the composite of glass fibre.Therefore, the effect of the 2nd invention can not only be embodied, moreover it is possible to embody following effect.That is, the impeller of the present invention makes flabellum parts thin-walled property, thus compares with situation about shaping with same compound material heavy wall, and the impeller made has high elastic coefficient, and easily restores the characteristic of (restorative).
Accompanying drawing explanation
Fig. 1 is the front view of the impeller of the present invention.
Fig. 2 is the explanation figure of the Component units of the impeller of the present invention and embeded slot.
Fig. 3 is the explanation figure of the embodiment 1 of the embeded slot of Component units.
Fig. 4 is the explanation figure of the embodiment 2 of the embeded slot of Component units.
Fig. 5 is the explanation figure of the embodiment 3 of the embeded slot of Component units.
Fig. 6 is the impeller comparison diagram with previous product and the air-supply efficiency of existing product of the present invention.
Fig. 7 is the impeller comparison diagram with previous product and the noise characteristic of existing product of the present invention.
Fig. 8 is the noise pattern of previous product.
Fig. 9 is the noise pattern of the impeller of the present invention.
Figure 10 is the spectrogram that the high spectrum part of the previous Nz sound of coincidence pattern 8 on Fig. 9 obtains.
Figure 11 is the explanation figure of previous product.
Figure 12 is the explanation figure of existing product (impeller of patent documentation 1).
Detailed description of the invention
Utilize figure so that embodiments of the present invention to be described.
Fig. 1 is the front view of the impeller of the present invention, Fig. 2 is the explanation figure of the Component units of the impeller of the present invention and embeded slot, Fig. 3 is the explanation figure of the embodiment 1 of the embeded slot of Component units, Fig. 4 is the explanation figure of the embodiment 2 of the embeded slot of Component units, Fig. 5 is the explanation figure of the embodiment 3 of the embeded slot of Component units, Fig. 6 is the impeller comparison diagram with previous product and the air-supply efficiency of existing product of the present invention, Fig. 7 is the impeller comparison diagram with previous product and the noise characteristic of existing product of the present invention, Fig. 8 is the noise pattern of previous product, Fig. 9 is the noise pattern of the impeller of the present invention, Figure 10 is the spectrogram that the high spectrum part of the previous Nz sound of coincidence pattern 8 on Fig. 9 obtains, Figure 11 is the explanation figure of previous product, and Figure 12 is the explanation figure of existing product (impeller of patent documentation 1).
<1>structure of the impeller of the present invention
The impeller 1 of Fig. 1 of the present invention comprises the Component units 2 of the impeller of multiple Fig. 2, the fixing plate 5 of projection seat side discs shape and axle portion 6 and protruding base part 7.Axle portion 6 is installed on the disc-shaped part 3 of the Component units 2 of a side end of impeller 1.The fixing plate 5 of projection seat side discs shape is installed on the flabellum component side of the Component units of the end side of impeller 1.Protruding base part 7 is arranged at the fixing plate 5 of projection seat side discs shape.
<2>structure of flabellum parts (Component units 2)
The Component units 2 of impeller 1 comprises disc-shaped part 3 and flabellum parts 4.Material uses AS resin, ABS resin or PP resin.It is further possible to use the composite of described various kinds of resin and glass fibre.Resins recited herein etc. are an example, as long as allow formed products have the synthetic resin of some strength, just can use as the normal synthetic resin used fully.In addition it is also possible to use the composite of this synthetic resin and glass fibre.Disc-shaped part 3 and flabellum parts 4 are formed integrally by injection molding, pressing or extrusion molding etc..The connection of each Component units 2 can be passed through the then method such as ultrasonic fusing method and engage.Additionally, utilize the then method such as ultrasonic fusing method, fixing for projection seat side discs shape plate 5 can be engaged with the flabellum parts 4 of the Component units 2 of the projection seat side end of impeller 1.
Different from the flabellum parts of the Component units of existing product (Figure 12), the present invention shapes the Component units of multiple shape such as Fig. 2.That is, different from the existing product of Figure 12, the length direction of flabellum parts 4 is absent from reverse wait and be straight.As it has been described above, utilize the then method such as ultrasonic fusing method to be engaged by described flabellum parts and form impeller.
About the flabellum parts 4 of the Component units 2 of impeller 1, its wall thickness is provided with the draw taper of molding.The wall thickness of flabellum parts 4 is calculated as 0.3～1.5mm with average wall thickness.Preferably 0.3～0.8mm, more preferably 0.4～0.6mm.If the average wall thickness of flabellum parts is thinner than 0.3mm, then the formability that can there is forming process is deteriorated and produces cacoplastic misgivings in the front of flabellum parts.If the average wall thickness of flabellum parts is thicker than 1.5mm, then can there are following misgivings: the rigidity of flabellum parts increases, then the power that deformation is required becomes big, and flabellum parts are difficult to when applying to reverse to be fitted together to the embeded slot being located at following disc-shaped part.
<3>material of flabellum parts (Component units 2)
The Component units 2 of impeller 1 and the material of the fixing plate 5 of projection seat side discs shape are illustrated.As material, it is possible to use synthetic resin such as AS resin, ABS resin or PP resins.In the present invention, as described below, in order to make the shifting ground, front end of flabellum parts be fitted together to the embeded slot being arranged at discoid fixing plate, the front end of flabellum parts need to be set to the average wall thickness with flexibility.
In addition it is possible to use the composite of described multiple synthetic resin and glass fibre.In this case, the average wall thickness of flabellum parts preferably 0.3～0.8mm, more preferably 0.4～0.6mm.If the average wall thickness of flabellum parts is thinner than 0.3mm, then the formability that can there is forming process is deteriorated and produces cacoplastic misgivings in the front of flabellum parts.If the average wall thickness of flabellum parts is thicker than 0.8mm, then can there is the glass fibre in flabellum parts will not orientation and the coefficient of elasticity (E ') of flabellum parts reduce in the face, surface of flabellum parts misgivings.It addition, about coefficient of elasticity (E '), will describe hereinafter.When using composite, the containing ratio of glass fibre is preferably set to the 10% to 40% of entirety in weight rate, is more preferably set to 10% to 30%.If the weight rate of the containing ratio of glass fibre exceedes the 40% of entirety, then can there are the cacoplastic misgivings of the flabellum parts producing Component units.If additionally, lower than 10%, then can there are the misgivings that the intensity of flabellum parts reduces.
Additionally, the flabellum parts of the impeller about the present invention, the material of flabellum parts can use the composite of resin material and glass fibre, and the coefficient of elasticity (E ') of this composite is 2.5 × 109Pa～1.2 × 1010Pa.If the coefficient of elasticity (E ') of this composite is less than 2.5 × 109Pa, so can there is coefficient of elasticity low and do not embody the misgivings of effect of the characteristic easily restoring (restorative) completely, if it exceeds 1.2 × 1010Pa, then can exist the flabellum parts that can produce Component units cob webbing and cannot the misgivings of commercialization.
It addition, described coefficient of elasticity (E ') is the test piece utilizing the flabellum parts shaped to make specific dimensions, and determination of viscoelasticity machine (RSA3 that TAInstrumen company manufactures) is utilized to be measured.Additionally, the mensuration of coefficient of elasticity carries out when being at 7.2 DEG C/min of programming rate and measure frequency 1Hz.Additionally, measured value when coefficient of elasticity is set to 20 DEG C.
Additionally, the coefficient of elasticity (E ') of the composite of the resin material that the flabellum parts of the impeller of the present invention use and glass fibre is, along with the wall thickness of the flabellum parts shown in Fig. 2 is thinning and tend to increasing, along with the wall thickness of flabellum parts is thickening and tend to reducing.If wall thickness thickens to 2mm from 0.5mm, coefficient of elasticity (E ') then becomes only about half of.
Additionally, along with the content of glass fibre increases, coefficient of elasticity (E ') also tends to increase.If the content of glass fibre increases to 40% from 10% with mass ratio range, coefficient of elasticity (E ') then becomes about 3 times.
<4>method of attachment of Component units
Secondly, the method for attachment of Component units is described.When connecting the Component units shown in Fig. 2, in the side of the unshaped flabellum parts of disc-shaped part, the flabellum parts of the Component units that correspondence to connect, and the embeded slot 8 that the front end for flabellum parts is chimeric is set.To the front end of the embedded hinge leaf parts of described embeded slot, and with then method connections such as ultrasonic fusings, thus forming impeller.In the present invention, in order to promote the noiseproof feature of impeller, carry out discussing with keen determination to the shape of the embeded slot chimeric for these flabellum parts.Hereinafter, the embodiment of embeded slot 8 is described according to Fig. 3 to Fig. 5.It addition, as shown in Fig. 2 (c), embeded slot 8 is provided with multiple on the disc-shaped part 3 of Component units 2, but only describe one of them (the M portion in figure) here in detail.
[embodiment 1]
According to Fig. 3, the embodiment 1 of embeded slot is illustrated.It is same shape that the embeded slot 8 of Fig. 3 is set to the leading section of the flabellum parts 4 with Component units, position on disc-shaped part 3, is the shape project in the flabellum member forward end portion relative to the Component units position on disc-shaped part 3 and shaped Offset phase place and configures.Shown in offset method such as Fig. 3 (a) and Fig. 3 (b).In Fig. 3 (a) and Fig. 3 (b), dotted line is the shape project of the leading section of above-mentioned flabellum parts shape on disc-shaped part.In Fig. 3 (a), the intersection point of the flabellum shape of this dotted line Yu its centrage is set to P1 and P2, Fig. 3 (b) is set to Q1 and Q2.Fig. 3 (a) is that embeded slot makes the embeded slot shape relative to centrage P1-P2 right direction and left direction (direction of arrow) offsetting rotational angle θ with P1 for basic point.The centrage of the embeded slot after left direction rotation offset is P1-P3, and the centrage of the embeded slot after right direction rotation offset is P1-P4.Fig. 3 (b) is that embeded slot makes the embeded slot shape relative to centrage Q1-Q2 right direction and left direction (direction of arrow) offsetting rotational angle θ with Q1 for basic point.The centrage of the embeded slot after left direction skew is Q1-Q3, and the centrage of the embeded slot after right direction skew is Q1-Q4.Anglec of rotation θ is 1 degree to 15 degree.This kind of flabellum parts 4 are to be entrenched in embeded slot 8 with the state reversed.Afterwards, ultrasonic fusing etc. is utilized to engage.
Herein, if anglec of rotation θ is less than 1 degree, then can exist and lose the misgivings of effect eliminating or reducing Nz sound, if it exceeds 15 degree, then can there is flabellum excessive parts and deform and misgivings that impeller cannot be shaped.
[embodiment 2]
According to Fig. 4, the embodiment 2 of embeded slot is illustrated.It is same shape that the embeded slot 8 of Fig. 4 is set to the leading section of the flabellum parts 4 with Component units, position on disc-shaped part, is the shape project in the flabellum member forward end portion relative to the Component units position on disc-shaped part 3 and shape slightlys offset inside radial direction and configures.Offset method is as shown in Figure 4.In the diagram, dotted line is the shape project of the leading section of above-mentioned flabellum parts shape on discoid fixing plate.The intersection point of the centrage of the flabellum shape of this dotted line is set to R1 and R2.Fig. 4 makes embeded slot relative to centrage R1-R2 in the direction of the arrow to the shape of radial direction offset inboard.The centrage of embeded slot is R3-R4.Embeded slot is 0.5mm to 2mm to the side-play amount inside radial direction.This kind of flabellum parts are to be entrenched in embeded slot with the state bent slightly towards radial direction.Afterwards, ultrasonic fusing etc. is utilized to engage.
Herein, if side-play amount is less than 0.5mm, then can exist and lose the misgivings of effect eliminating or reducing Nz sound, if it exceeds 2mm, then can there is the deformation of flabellum excessive parts and the misgivings of impeller cannot be shaped.
[embodiment 3]
According to Fig. 5, the embodiment 3 of embeded slot is illustrated.It is same shape that the embeded slot 8 of Fig. 5 is set to the leading section of the flabellum parts 4 with Component units, position on disc-shaped part, the shape project in the flabellum member forward end portion relative to the Component units position on disc-shaped part 3 and shape, the centerline direction skew of the shape being projected on disc-shaped part 3 towards flabellum member forward end portion and configure.Shown in offset method such as Fig. 5 (a) and Fig. 5 (b).In Fig. 5 (a) and Fig. 5 (b), dotted line is the shape project of the leading section of above-mentioned flabellum parts shape on disc-shaped part.In Fig. 5 (a), the intersection point of the flabellum shape of this dotted line Yu its centrage is set to S1 and S2, Fig. 5 (b) is set to T1 and T2.Fig. 5 (a) makes embeded slot offset along the centrage S1-S2 of the flabellum shape of dotted line to the peripheral direction of impeller to form.The centrage of the embeded slot after offseting to the direction is S3-S4, identical with S1-S2.Fig. 5 (b) makes embeded slot offset along the centrage T1-T2 of the flabellum shape of dotted line to the interior circumferential direction of impeller to form.The centrage of the embeded slot after offseting to the direction is T3-T4, identical with T1-T2.The flabellum parts of embeded slot are 0.5mm to 2mm to the side-play amount of peripheral direction or interior circumferential direction.Therefore, flabellum parts are to be entrenched in embeded slot with the state along the centrage slight curvature of the shape project of the front end of flabellum parts shape on disc-shaped part 3.Afterwards, ultrasonic fusing etc. is utilized to engage.
Herein, if side-play amount is less than 0.5mm, then can exist and lose the misgivings of effect eliminating or reducing Nz sound, if it exceeds 2mm, then can there is the deformation of flabellum excessive parts and the misgivings of impeller cannot be formed.
[embodiment 4]
The embodiment 4 of embeded slot 8 is illustrated.Present embodiment although not shown, but also is able to use by the embeded slot Composite of embodiment 1 to embodiment 3 and after combining.
<5>embodiment of the impeller of the present invention
Hereinafter, enumerate embodiment and the present invention is more specifically illustrated by comparative example, but the present invention is not limited to following embodiment.
[embodiment 1]
In the present embodiment, the containing ratio utilizing glass fibre is set to the composite of the AS resin of the 20% of entirety and makes Component units plate fixing with projection seat side discs shape with weight rate.The flabellum parts of Component units are the form shown in Fig. 2, and its average wall thickness is set to 0.4mm, and length is set to 79mm, and its sheet number is set to 35.Additionally, the diameter of Component units is set to 106mm in the most external of flabellum parts 4.This kind of Component units is that the raw material utilizing described material is shaped by injection molding.And, utilize ultrasonic fusing method by 8 this kind of Component units with and Component units 2 be identical material the fixing plate 5 of projection seat side discs shape engage and make the impeller of Fig. 1.Made impeller total length is 635mm, and diameter is 106mm, and gross weight is 385gr.
Additionally, the embeded slot 8 of the disc-shaped part being arranged in the present embodiment is set to Fig. 3 (a) of embodiment 1.Embeded slot is set to 5 degree relative to the anglec of rotation θ of the flabellum parts of disc-shaped part.
[embodiment 2]
In the present embodiment, the embeded slot 8 being arranged at disc-shaped part is set to embodiment 2, is arranged in inside 1mm radial direction by the embeded slot of the flabellum parts relative to disc-shaped part.In addition, impeller is made in the same manner as example 1.
[embodiment 3]
In the present embodiment, the embeded slot being arranged at disc-shaped part is set to embodiment 3, is make embeded slot offset 1mm along the centrage S1-S2 of the flabellum shape of dotted line to the interior circumferential direction of impeller according to Fig. 5 (a) relative to the embeded slot of the flabellum parts of discoid fixing plate.In addition, impeller is made in the same manner as example 1.
[comparative example 1]
The impeller of this comparative example is previous product (Figure 11).Material is set to AS resin, and the average wall thickness of flabellum is about 1.8mm.Flabellum parts are to be inserted into embeded slot and be connected to discoid fixing plate torsion with embeded slot etc., i.e. the flabellum parts 204 of Component units 200 are absent from torsion etc. when being absent from.In addition, the impeller of Figure 11 is made in the same manner as example 1.The weight of the impeller obtained is 733gr.
[comparative example 2]
The impeller of this comparative example is existing product (Figure 12).The flabellum parts 304 of the Component units 302 of Figure 12 (a) are configured to simulating the shape of Figure 12 (c).Use tool to become flabellum fixed engagement in the way of the state of 5 degree is reversed in the front end that makes each flabellum relative to the root of the flabellum of discoid fixing plate at discoid fixing plate.Reverse to a direction of Figure 12 (c) and b direction and when reversing 5 degree, flabellum parts 304 are fastened on discoid fixing plate 303.It addition, in Figure 12 (c), the flabellum parts of dotted line represent the flabellum parts 204 (or flabellum parts 4 of Fig. 2) of Figure 11.Material is set to AS resin, and the average wall thickness of flabellum is set to about 1.8mm.In addition, the impeller of Figure 12 is made in the way of identical with embodiment.The weight of the impeller obtained is 733gr.
For the impeller made in embodiment 1 to embodiment 3 and comparative example 1 to comparative example 2, herein below is tested and compares.
[1] air-supply efficiency
For the impeller obtained in embodiment 1 to embodiment 3 and comparative example 1 to comparative example 2, as follows air-supply efficiency is evaluated.The impeller that will utilize described method and make is set into indoor apparatus of air conditioner, air-conditioning real machine is arranged at air-quantity measuring device, and the required power consumption that drives of air output with impeller is measured.
[2] noise characteristic
For the impeller obtained in embodiment 1 to embodiment 3 and comparative example 1 to comparative example 2, as follows noise characteristic is evaluated.The impeller that will utilize described method and make is set into indoor apparatus of air conditioner, air-conditioning real machine is arranged at air-quantity measuring device, and the rotating speed of air output Yu impeller is measured.And, air-conditioning real machine is arranged at noise level measurement room with the state being suspended on wall, the rotating speed of noise figure Yu impeller is measured.Make the relationship graph of the air output under same rotating speed and noise figure.
[3] Nz sound
When measuring the noise characteristic of described [2], the level of the Nz sound in noise pattern is compared evaluation.
<6>performance evaluation of embodiment and comparative example
The evaluation result of air-supply efficiency (power consumption) is shown in Fig. 6.Fig. 6 is the figure that embodiment is compared with the relation of power consumption (W) with the air quantity (m3/min) of the impeller of comparative example.According to Fig. 6, when air quantity is 12m3/min, about its power consumption, relative to previous product and existing product, the power consumption of the impeller of the present invention reduces about 5～6%.
The evaluation result of noise characteristic is shown in Fig. 7.Fig. 7 is the figure that embodiment is compared with the relation of noise figure (dB (A)) with the air quantity (m3/min) of the impeller of comparative example.Being able to confirm that according to Fig. 7, condition of the present invention is equal performance for previous product and existing product.
About the degree that Nz sound reduces, confirm product of the present invention equal with the impeller of existing product (Figure 12).Additionally, the degree reduced about Nz sound, the impeller of product of the present invention Yu previous product (Figure 11) is compared confirmation.
Fig. 8 is the noise pattern of the impeller of previous product.The part being expressed as " Nz sound " and " 2Nz " in figure is denoted as the intensity (grade) of Nz sound.Fig. 9 is the noise pattern of invention product.The part being expressed as " Nz sound " and " 2Nz " in figure is denoted as the intensity (grade) of Nz sound.Figure 10 is under the frequency of the 194Hz to 6100Hz of Fig. 8 and Fig. 9, and overlap with the noise pattern (Fig. 9) of product of the present invention after part mark × labelling high to the part being equivalent to Nz sound of the noise pattern (Fig. 8) of previous product and the intensity (grade) of noise the figure represented by it.Learning according to Figure 10, relative to previous product, the Nz sound of product of the present invention is significant to be eliminated or reduced.
[explanation of symbol]
1: impeller (product of the present invention)
2: the Component units of impeller
3: disc-shaped part
4: flabellum parts
5: projection seat side discs shape fixes plate
6: axle portion
7: protruding base part
8: embeded slot
200: the impeller (previous product) of prior art
300: the impeller (existing product) of prior art
Claims (4)
1. an impeller, it is on disc-shaped part, cylindrically shapes multiple flabellum parts, makes Component units, the flabellum parts of described Component units is connected to the described disc-shaped part of another Component units and the air feeder vane wheel that formed, it is characterised in that:
At the opposing face being formed with flabellum component side of described disc-shaped part, according to the quantity identical with described flabellum parts, the embeded slot chimeric for flabellum member forward end is set,
The position of described embeded slot offsets relative to the position of the described flabellum parts on described disc-shaped part,
Chimeric described flabellum member forward end portion in described embeded slot, and connect each Component units.
2. impeller according to claim 1, it is characterized in that: the material of the flabellum parts of impeller is set to the composite of synthetic resin material and glass fibre, the average wall thickness of the flabellum parts of impeller is formed in the scope of 0.3～0.8mm, makes the orientation in the face, surface of flabellum parts of the glass fibre contained by flabellum parts further.
3. impeller according to claim 2, it is characterised in that: the material of flabellum parts is set to the composite of synthetic resin material and glass fibre, and is set to the resin composite materials that containing ratio is weight rate 10% to 40% of glass fibre.
4. the impeller according to Claims 2 or 3, it is characterized in that: the material of flabellum parts is set to the composite of synthetic resin material and glass fibre, and the coefficient of elasticity (E ') in the direction, face, surface of these flabellum parts is 2.5 × 109Pa～1.2 × 1010Pa.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-203875 | 2013-09-30 | ||
| JP2013203875A JP6431663B2 (en) | 2013-09-30 | 2013-09-30 | Blower impeller |
| PCT/JP2014/075010 WO2015046110A1 (en) | 2013-09-30 | 2014-09-22 | Bladed wheel for fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105793575A true CN105793575A (en) | 2016-07-20 |
Family
ID=52743246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480065273.2A Pending CN105793575A (en) | 2013-09-30 | 2014-09-22 | Bladed wheel for fan |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6431663B2 (en) |
| KR (1) | KR20160062076A (en) |
| CN (1) | CN105793575A (en) |
| WO (1) | WO2015046110A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751279A (en) * | 2017-11-01 | 2019-05-14 | 日清纺精密机器株式会社 | Fan impeller |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017133371A (en) * | 2016-01-25 | 2017-08-03 | 東芝ホームテクノ株式会社 | Blower device |
| DE102016118504A1 (en) * | 2016-09-29 | 2018-03-29 | Hanon Systems | Blower wheel of a blower arrangement for an air conditioning system of a motor vehicle and method for producing the blower wheel |
| JP2017214937A (en) * | 2017-09-19 | 2017-12-07 | 日清紡メカトロニクス株式会社 | Cross flow fan |
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| JPS5919838Y2 (en) * | 1981-10-26 | 1984-06-08 | 三国プラスチツクス株式会社 | cross flow impeller |
| CN1118844A (en) * | 1994-08-09 | 1996-03-20 | 东芝株式会社 | Transversly blowing fan and method and apparatus for making same |
| JPH09242694A (en) * | 1996-03-05 | 1997-09-16 | Sanko Gosei Kk | Cylindrical impeller |
| CN1230636A (en) * | 1998-03-30 | 1999-10-06 | 三洋电机株式会社 | Cross-flow fan and air-conditioner using it |
| CN102187100A (en) * | 2008-10-22 | 2011-09-14 | 夏普株式会社 | Molding machine for following-through fan, blower and blade wheel |
| CN102235380A (en) * | 2010-04-28 | 2011-11-09 | 日清纺精密机器株式会社 | Pressure fan impeller and impeller producing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3107711B2 (en) | 1994-08-09 | 2000-11-13 | 株式会社東芝 | Cross flow fan |
| JP5030115B2 (en) * | 2010-02-16 | 2012-09-19 | シャープ株式会社 | Cross-flow fan, blower and impeller molding machine |
| JP5550181B2 (en) * | 2010-04-28 | 2014-07-16 | 日清紡メカトロニクス株式会社 | Blower impeller |
-
2013
- 2013-09-30 JP JP2013203875A patent/JP6431663B2/en active Active
-
2014
- 2014-09-22 KR KR1020167010624A patent/KR20160062076A/en not_active Application Discontinuation
- 2014-09-22 WO PCT/JP2014/075010 patent/WO2015046110A1/en active Application Filing
- 2014-09-22 CN CN201480065273.2A patent/CN105793575A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919838Y2 (en) * | 1981-10-26 | 1984-06-08 | 三国プラスチツクス株式会社 | cross flow impeller |
| CN1118844A (en) * | 1994-08-09 | 1996-03-20 | 东芝株式会社 | Transversly blowing fan and method and apparatus for making same |
| JPH09242694A (en) * | 1996-03-05 | 1997-09-16 | Sanko Gosei Kk | Cylindrical impeller |
| CN1230636A (en) * | 1998-03-30 | 1999-10-06 | 三洋电机株式会社 | Cross-flow fan and air-conditioner using it |
| CN102187100A (en) * | 2008-10-22 | 2011-09-14 | 夏普株式会社 | Molding machine for following-through fan, blower and blade wheel |
| CN102235380A (en) * | 2010-04-28 | 2011-11-09 | 日清纺精密机器株式会社 | Pressure fan impeller and impeller producing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751279A (en) * | 2017-11-01 | 2019-05-14 | 日清纺精密机器株式会社 | Fan impeller |
| CN109751279B (en) * | 2017-11-01 | 2022-04-05 | 日清纺精密机器株式会社 | Impeller for fan |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015068269A (en) | 2015-04-13 |
| WO2015046110A1 (en) | 2015-04-02 |
| JP6431663B2 (en) | 2018-11-28 |
| KR20160062076A (en) | 2016-06-01 |
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