CN109751279A - Fan impeller - Google Patents
Fan impeller Download PDFInfo
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- CN109751279A CN109751279A CN201811234311.9A CN201811234311A CN109751279A CN 109751279 A CN109751279 A CN 109751279A CN 201811234311 A CN201811234311 A CN 201811234311A CN 109751279 A CN109751279 A CN 109751279A
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- Prior art keywords
- blade part
- degree
- embeded slot
- mentioned
- impeller
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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
- F04D29/26—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
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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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Be low noise the purpose of the present invention is to provide a kind of fan impeller, eliminate or reduce Nz because cheap impeller.Multiple blade parts are molded into cylindrical shape on disc-shaped part to form component, and the above-mentioned disc-shaped part that the blade part of said modules is incorporated into another component are formed；In the opposite face in the side for the blade part for forming above-mentioned disc-shaped part, the embeded slot of the front end for being fitted into blade part of quantity identical as above-mentioned blade part is formed；The position of embeded slot is formed on the basis of the position of the above-mentioned blade part on above-mentioned disc-shaped part, when from the direction of the opening of above-mentioned embeded slot, the position that is rotated in a clockwise direction；It is fitted into above-mentioned blade part front end in embeded slot, and combines each component.
Description
Technical field
The present invention relates to for the impeller in the fans such as tubular type fan.
Background technique
Recently it is used as environmental problem or resource-effective countermeasure, for the performance of raising fan, to light-weight, low noise and low
The requirement of vibration impeller becomes higher and higher.
Firstly, the blade wheel structure to the prior art is illustrated.As shown in figure 12, the impeller 200 of the prior art is by multiple
Component 202, propeller boss side discs shape fixed plate 205, axle portion 206 and the shaft hub 207 of impeller are constituted.Component 202 is by disc portion
Part 203 and blade 204 are constituted.Axle portion 206 is installed on the disc-shaped part 203 of the component 202 of the end of the side of impeller 200
On.Propeller boss side discs shape fixed plate 205 is installed on the blade part side of the component of the end of the other side of impeller 200.Shaft hub
207 are set in propeller boss side discs shape fixed plate 205.In the following, above-mentioned impeller is referred to as " previous product ".
For the low noise of the impeller of the above-mentioned prior art of realization, it is especially desirable to eliminate or reduce Nz sound.Nz sound refers to basis
The peak value sound that the quantity and rotation number of the blade of fan impeller generate.If generating Nz sound, because being the peak value of specific frequency,
It is easy that people is allowed to feel bad.To reduce above-mentioned Nz sound, following impeller is disclosed in patent document 1.
In the following, explanation is recorded in the impeller of patent document 1.The blade of impeller 300 has shape as shown in fig. 13 that, multiple
Blade 304 is cylindrical to be set on component 302.A kind of impeller is disclosed, the circle that component is fixed in relative variability is integrally formed
One end of the blade 304 of dish type fixed plate 303 and the angle of its other end are connected on multiple with forming the blade of twisting states
State component.But the impeller of patent document 1, the technique or mold of component of the molding comprising above-mentioned blade are complicated, improve impeller
Cost.In the following, above-mentioned impeller is referred to as " current production ".
Advanced technical literature
Patent document
Japanese Patent Open Publication H08-049689
Summary of the invention
Project to be solved
A kind of low noise is provided it is an object of the invention to overcome the deficiencies in the prior art, eliminate or reduce Nz because it is honest and clean
The impeller of valence.
Problem solution
In order to achieve the above objectives, the impeller of first invention has following feature:
A kind of fan impeller, multiple blade parts are molded into cylindrical shape on disc-shaped part to form component, and
The above-mentioned disc-shaped part that the blade part of said modules is incorporated into another component is formed；
The material of the blade part of impeller is the composite material of synthetic resin material and glass fibre, the blade part of impeller
Average thickness be 0.3mm~0.8mm range, moreover, making the glass fibre for being contained in blade part towards blade part
The inside on surface；
Multiple blade parts of said modules are formed with straight line；
In the face opposite with the side for the blade part for forming above-mentioned disc-shaped part, formed and above-mentioned blade part phase
With the embeded slot of the front end for being fitted into blade part of quantity；
Above-mentioned embeded slot is formed as, and the position of center line of above-mentioned embeded slot is configured at upper on above-mentioned disc-shaped part
On the basis of the center for stating the position of blade part, when from the direction of the opening of above-mentioned embeded slot, along clockwise direction
The position of the range of 1 degree~7 degree of rotation；
When being fitted into the front end of above-mentioned blade part in above-mentioned embeded slot, make blade part front end torsional deflection it
After be fitted into, with combine each component.
According to the impeller of first invention, have the effect that
The impeller of first invention, by the embeded slot of the disc-shaped part of component, with the center of the position of above-mentioned blade part
On the basis of position, when from the direction of the opening of above-mentioned embeded slot, it is rotated in a clockwise direction 1 degree~7 degree of range setting,
To reverse the front end of insertion blade part.Therefore, blade part (component) as long as material have apply distortion etc. become
The material flexible of cracking etc. will not occur for shape.Has synthetic resin flexible for example, selecting, and by by blade part
The thickness control of part can inhibit Nz sound at level identical with current techniques in the present art.
Above-mentioned embeded slot is formed in using the center of the position of the above-mentioned blade part on above-mentioned disc-shaped part as base
Standard is rotated in a clockwise direction the position of 1 degree~7 degree of range.If the variation angle of embeded slot is less than 1 degree, it is likely that nothing
Method obtains the effect for reducing Nz sound.In addition, if its angle is greater than 7 degree, when reversing chimeric blade part in embeded slot, blade
Front end be possible to local deformation.In addition, the distortion angle of embeded slot is preferably 2 degree~6 degree.Most preferably 3 degree~5 degree.
The impeller of first invention, the material selection synthetic resin material of blade part and the composite material of glass fibre,
And the average thickness of blade part is controlled in relatively thin 0.3mm~0.8mm.Therefore, make the glass being contained in blade part
The inside on surface of the fiber towards blade part.Impeller with this configuration, product and current production as compared with the past can be heavy by its
Amount is reduced to less than half.Even if making blade part thinning, weight will not reduce the performance as impeller, so as to save
Save the energy for driving impeller.Especially, because the thickness of blade part becomes less than half of the prior art, Master Cost
It is reduced to less than half.In addition, 0.3mm~0.8mm that the average thickness of blade part of the invention is relatively thin, to can realize
The purpose of weight is reduced, moreover, making the glass fibre in composite material towards the surface the inside of blade part, to further mention
The intensity of high blade part.In addition, even if reversing chimeric blade part front end to play effect of the invention to embeded slot, also not
The problems such as blade part cracking can occur.
The structure of the impeller of first invention are as follows: multiple components are formed, in the blade part for forming disc-shaped part of component
The opposite face in the side of part forms the embeded slot for being used to be fitted into blade part front end of quantity identical as blade part, will be above-mentioned
The position of embeded slot is changed relative to the position of the above-mentioned blade part on above-mentioned disc-shaped part, embedding in above-mentioned embeded slot
It closes and states blade part front end, and combine each component.Used mold when impeller is formed as a result, is recorded in compared with manufacture
The mold of the impeller of the prior art of patent document 1, structure become very simple.Therefore, compared with the impeller of the prior art, originally
The impeller of invention becomes very cheap.
The impeller of first invention, the material selection composite material of blade part, and the thickness of blade part are ensuring not drop
It is thinning under low intensive precursor.In addition, the reduction for Nz sound, it is very unfavorable that the thickness of blade part, which thickens,.But because making
With the content of first invention, the front end of chimeric blade part is reversed in embeded slot, the level of Nz sound can be maintained with it is existing
The identical level of the impeller of technology.
The fan impeller of second invention has following feature on the basis of first invention:
The bottom of above-mentioned embeded slot is in shape identical with the front end geometry of chimeric blade part, and will be to embeded slot
When being inserted into blade part the part of the above-mentioned embeded slot of the front end contact of blade part be formed as from the central portion of embeded slot to
Peripheral portion is formed by inclination in slowly varying inclined surface.
According to the impeller of the second invention, the blade part that has disc-shaped part in component is had the effect that
The edge part of the embeded slot in the opposite face in side forms smooth inclined surface.Therefore, blade part can make when being inserted into embeded slot
The front end of blade part is smoothly fitted to embeded slot while torsional deflection.
The fan impeller of third invention has following feature on the basis of first invention or the second invention:
The material selection synthetic resin material of blade part and the composite material of glass fibre, and select containing for glass fibre
Having rate is 10%~40% resin composite materials in terms of weight rate.
The impeller of third invention selects the composite material of synthetic resin material and glass fibre, and selects containing for glass fibre
Having rate is 10%~40% resin composite materials in terms of weight rate.Therefore, if playing the second The effect of invention, have
Following effect: even if by the control of the average thickness of the blade part of impeller in relatively thin 0.3mm~0.8mm, because can be by glass fibers
The inside of blade part is arranged in dimension, so that the intensity of blade part can be improved.
The fan impeller of 4th invention has as follows on the basis of any invention that first invention to third is invented
Feature:
The material selection synthetic resin material of blade part and the composite material of glass fibre, and the surface of the blade part
Face direction coefficient of elasticity (E') be 2.5 × 109Pa~1.2 × 1010Pa。
In addition, the impeller of the 4th invention, the material selection synthetic resin material of blade part and the composite wood of glass fibre
Material, and selecting the coefficient of elasticity (E') in the surface face direction of blade part is 2.5 × 109Pa~1.2 × 1010The resin material of Pa
With the composite material of glass fibre.Therefore, if playing the second The effect of invention, impeller i.e. of the invention is had the effect that
By keeping blade part thinning, relatively it is used same compound material and is fabricated to thick situation, can produce and have high elastic coefficient
Meanwhile it being easy to restore the impeller of the characteristic of (restoration).
Detailed description of the invention
Fig. 1 is the front elevation of impeller of the invention；
Fig. 2 is the component of impeller of the invention and the explanatory diagram of embeded slot；
Fig. 3 is the explanatory diagram of the embodiment of the embeded slot of component；
Fig. 4 is the detailed description figure of the cross sectional shape of embeded slot；
Fig. 5 is the explanatory diagram of the chimeric process of blade part front end and embeded slot；
Fig. 6 is the relational graph of windup-degree and air quantity；
Fig. 7 is the relational graph of windup-degree and noise level；
Fig. 8 is the noise pattern of the impeller of (1 degree~2 degree of windup-degree, 6 degree~7 degree of windup-degree) of the invention；
Fig. 9 is the noise pattern of the impeller of (2 degree~3 degree of windup-degree, 5 degree~6 degree of windup-degree) of the invention；
Figure 10 is the noise pattern of the impeller of (3 degree~5 degree of windup-degree) of the invention；
Figure 11 is the noise pattern of the impeller of previous product；
Figure 12 is the explanatory diagram of previous product；
Figure 13 is the explanatory diagram of current production (impeller of patent document 1).
Drawing reference numeral explanation:
1: impeller (product of the present invention)
2: component
3: disc-shaped part
4: blade part
5: propeller boss side discs shape fixed plate
6: axle portion
7: shaft hub
8: embeded slot
200: the impeller (previous product) of comparative example
300: the impeller of current techniques
Specific embodiment
In the following, embodiments of the present invention are described with reference to the accompanying drawings.
Fig. 1 is the front elevation of impeller of the invention；Fig. 2 is the component of impeller of the invention and the explanatory diagram of embeded slot；Fig. 3
For the explanatory diagram of the embodiment of the embeded slot of component；Fig. 4 is the detailed description figure of the cross sectional shape of embeded slot；Fig. 5 is blade part
The explanatory diagram for the process that part front end and embeded slot are fitted into；Fig. 6 is the relational graph of windup-degree and air quantity；Fig. 7 is windup-degree
With the relational graph of noise level；Fig. 8 is the noise of the impeller of (1 degree~2 degree of windup-degree, 6 degree~7 degree of windup-degree) of the invention
Spectrogram；Fig. 9 is the noise pattern of the impeller of (2 degree~3 degree of windup-degree, 5 degree~6 degree of windup-degree) of the invention；Figure 10
For the noise pattern of the impeller of (3 degree~5 degree of windup-degree) of the invention；Figure 11 is the noise spectrum of the impeller of previous product
Figure；Figure 12 is the explanatory diagram of previous product；Figure 13 is the explanatory diagram of current production (impeller of patent document 1).
<1>structure of impeller of the invention
Impeller 1 as shown in Figure 1 of the invention is fixed by the component 2 of multiple impellers as shown in Figure 2, propeller boss side discs shape
Plate 5, axle portion 6 and shaft hub 7 are constituted.Axle portion 6 is installed on the disc-shaped part 3 of the component 2 of the end of the side of impeller 1.Axis
Hub side discs shape fixed plate 5 is installed on the blade part side of the component of the end of the other side of impeller 1.Shaft hub 7 is set to axis
In hub side discs shape fixed plate 5.
<2>structure of blade part (component 2)
The component 2 of impeller 1 is made of disc-shaped part 3 and blade part 4.Material selection AS resin, ABS resin or PP tree
Rouge.In addition, the composite material of above-mentioned resin and glass fibre also can be selected.Resin recorded herein etc. is an example, as long as
It is usually used synthetic resin, the synthetic resin of certain intensity can be assigned to molded product.In addition, it also can be selected
The composite material of synthetic resin and glass fibre.Disc-shaped part 3 and blade part 4 pass through extrusion molding, pressing or extrusion
Method etc. is molded as one.The combination of each component 2 can be engaged by bonding methods such as ultrasonic bondings.In addition, propeller boss side circle
Dish type fixed plate 5 can pass through the blade part 4 of the bonding methods such as ultrasonic bonding and the component 2 of the end of the propeller boss side of impeller 1
Engagement.
In the present invention, different from the blade part of component of current production (please referring to Figure 13), form the shape of multiple Fig. 2
The component of shape.I.e. different from the current production of Figure 13, the torsion etc. of the length direction of on-bladed component 4, is straight line.These
It engages to form impeller by bonding methods such as ultrasonic bondings as described above.
The blade part 4 of the component 2 of impeller 1, thickness have the drafting angle (draft angle) of molding.Blade
Thickness average out to 0.3mm~0.8mm of component 4.Preferably 0.4mm~0.6mm.If the average thickness of blade part is less than
0.3mm, then because being died down by the mouldability of the method for forming, it is possible to it is bad that molding occur in the front end side of blade part.If leaf
The average thickness of chip part is greater than 0.8mm, it is likely that is difficult to have by reversing etc. to be embedded in will aftermentioned disc
Embeded slot on component.
<3>material of blade part (component 2)
In the following, the material of component 2 and propeller boss side discs shape fixed plate 5 to impeller 1 is illustrated.AS tree can be selected in material
The synthetic resin such as rouge, ABS resin or PP resin.In the present invention, for having in will be in aftermentioned disc fixed plate
The front end of blade part is fitted by embeded slot by deformation, needs to make the front end of blade part to possess and has flexible put down
Equal thickness.
In addition, the composite material of its synthetic resin and glass fibre also can be selected.At this point, the average thickness of blade part
Preferably 0.3mm~0.8mm, more preferably 0.4mm~0.6mm.If the average thickness of blade part is less than 0.3mm, because passing through
The mouldability of the method for forming dies down, it is possible to which it is bad that molding occurs in the front end side of blade part.If the average thickness of blade part
Degree is greater than 0.8mm, then inside the surface because of the glass fibre in blade part not towards blade part, it is possible to reduce blade part
The coefficient of elasticity (E ') of part.In addition, coefficient of elasticity (E ') will be illustrated in later content.When using composite material,
The containing ratio of glass fibre preferably accounts for whole 10%~40% with weight rate, more preferably accounts for 10%~30%.If glass
The containing ratio of fiber is greater than whole 40% with weight rate, it is likely that the molding of the blade part of generating assembly is bad.Separately
Outside, if less than 10%, it is likely that reduce the intensity of blade part.
In addition, the blade part of impeller of the invention, the optional synthetic resin material of material and glass fibre is compound
Material, and the coefficient of elasticity (E') of the composite material is 2.5 × 109Pa~1.2 × 1010The composite material of Pa.If the composite wood
The coefficient of elasticity (E') of material is less than 2.5 × 109Pa, it is likely that do not exhibit low elastic coefficient completely and be easy to restore and (restore
Property) characteristic, and if more than 1.2 × 1010Pa, then because the molding of the blade part of generating assembly is bad, it is difficult to realize commercialization.
In addition, coefficient of elasticity (E') is the test piece from molding blade part production certain size and utilizes viscoelasticity measurement
Instrument (RSA3 of TA INSTRUMENTS company manufacture) measures.In addition, the measurement of coefficient of elasticity is at 7.2 DEG C 7 of heating rate
Point and measurement frequency 1Hz under carry out.In addition, coefficient of elasticity takes the measured value at 20 DEG C.
In addition, the elasticity system of the composite material of the resin material and glass fibre of the blade part for impeller of the invention
Number (E'), having makes the thickness of blade part as shown in Figure 2 is thinning just to get higher, and so that the thickness of blade part is thickend and is just lower
Tendency.If thickness to be made into thicker 0.5mm~2mm, coefficient of elasticity (E') becomes about half.
In addition, also having coefficient of elasticity (E') the also increased tendency if the oil content for increasing glass fibre.If by glass
The amount of fiber increases to 10%~40% with weight ratio, then coefficient of elasticity (E') becomes about three times.
<4>the combination method of component
Then, the combination method of component is illustrated.When combining component as shown in Figure 2, in disc-shaped part 3
The side of unformed blade part 4 forms the front end for being fitted into blade part corresponding to the blade part of the component combined
Embeded slot 8 (please referring to (c) in Fig. 2).It is fitted into the front end of blade part in this embeded slot, and passes through ultrasonic bonding etc.
Bonding method jointing-and-forming impeller.It in the present invention, is the noise performance for improving impeller, this for having studied chimeric blade part is chimeric
The shape of slot.In the following, engagement Fig. 3 to Fig. 5 is illustrated the embodiment of embeded slot.In addition, as shown in (c) in Fig. 2, although
Embeded slot 8 has multiple on the disc-shaped part 3 of component 2, but one of those (portion M in figure) is described in detail.
Remaining is all identical.
[embodiment of embeded slot]
Fig. 3 to Fig. 5 of embeded slot combination the present embodiment is illustrated.As shown in figure 3, the embeded slot 8 of the present embodiment, slot
The bottom in portion is in the shape almost the same with the front end of blade part 4 of component, and being set to the position of disc-shaped part 3 is
Following phase is carried out to by the shape project of the blade part front end of component to the position of disc-shaped part 3 and shape
's.The method of variation is as shown in Figure 3.In Fig. 3,1 chain line is by the shape project of the front end of above-mentioned blade part to circle
The shape of disc-shaped part, the shape almost the same with the bottom of fitting portion 8.
The center of the shape of this 1 chain line is set as 0.Center 0 is also the center on the center line of embeded slot 8
Position.Embeded slot 8 is that 1 degree~7 degree are rotated centered on its central location 0.When Fig. 3 is from disc-shaped part side, phase
The central location 0 of embeded slot 8 is rotated along clockwise direction.If the variation angle of embeded slot is less than 1 degree, having can
It can not obtain the effect for reducing Nz sound.If its angle is greater than 7 degree, when reversing chimeric blade part front end in embeded slot,
The front end of blade is possible to local deformation.In addition, the distortion angle of embeded slot is preferably 2 degree~6 degree.More preferably 3 degree~5
Degree.
The cross sectional shape of embeded slot 8 is shape as shown in Figure 4.Fig. 4 indicates the embeded slot as shown in (a) in Fig. 3
Position A, position B, position C, position D and the slot in the E of position cross sectional shape.Position A, position B, position C, position D in the figure
And each section corresponding A-A position E to the section E-E.Position C is the cross sectional shape in the central location of embeded slot 0.Position A and position
The center side that B is disc-shaped part is set, and position D and position E is the periphery side of disc-shaped part.In embeded slot 8
In, rake T1 and rake T2 are formed in its edge part.Rake T1 is to be formed in the edge part L1 of fitting portion 8 (to join
Examine Fig. 3) rake, and rake T2 is the rake for being formed in the edge part L2 (please referring to Fig. 3) of fitting portion 8.Rake
Center 0 point-symmetrically shape of the T1 and rake T2 relative to embeded slot.Week of the rake T1 from groove center 0 to disc-shaped part
Side side slowly tilts.Center side of the rake T2 from groove center 0 to disc-shaped part slowly tilts.
Although straight line forms blade part 4 along its length, the amount of above-mentioned angle is changed relative to this embeded slot.Cause
This, as shown in (a) in Fig. 3, when being fitted into blade part in the embeded slot of torsion, both ends of the front end of blade part first
It contacts, is gently smoothly fitted into embeded slot with rake T1 and rake T2.That indicate the state is Fig. 5.Fig. 5 indicates to expand
The rake T1 and rake T2 of big embeded slot, so that blade is slowly embedded in the feelings that embeded slot is contacted with the bottom of embeded slot
Condition.Being fitted into embeded slot 8 of the front end of blade part 4, in Fig. 5Sequence completed.As above
Described, the front end of blade part is fitted into the state reversed to embeded slot.Embeded slot is embedded in the front end portion of blade part
In the state of, the front end portion of the crest line A and crest line B of the blade part in (d) in Fig. 2 will be twisted.The length of blade part 4
There is no torsions for 6~7 one-tenth parts of the length L in degree direction.In addition, the center line of the blade part 4 of (d) in Fig. 2, from it
Bottom is to front end in the state that do not reverse.The front end of blade part in this way is embedded in after embeded slot, fitting portion
Divide through the engagement such as ultrasonic bonding.
<5>embodiment of impeller of the invention
In the following, in conjunction with the embodiments and comparative example carries out more specific description to the present invention, but the present invention is not limited to following realities
Apply example.
[embodiment 1 to 6]
In the present embodiment, using the containing ratio of glass fibre with weight rate account for whole 20% AS resin it is compound
Material makes component and propeller boss side discs shape fixed plate.The blade part of component is shape as shown in Figure 2, and average thickness is
0.4mm, length 79mm, quantity are 35.In addition, the diameter of component is the most external 106mm in blade part 4.Above-mentioned group
Part is formed using the material of above-mentioned material by extrusion molding.In addition, by component 8 and propeller boss side with 2 same material of component
Disc fixed plate 5 is combined by ultrasonic bonding, makes impeller as shown in Figure 1.The entirety for the impeller being made is long
Degree is 635mm, diameter 106mm, overall weight 385gr.
In addition, the embeded slot 8 for being formed in disc-shaped part in the present embodiment is using (a) in Fig. 3 of embodiment.Disk
The rotation angle, θ of the center relative to embeded slot of the blade part of shape component, from the direction of the opening of embeded slot
When, it is arranged to 1 degree, 2 degree, 3 degree, 4 degree, 5 degree, 6 degree, 7 degree along clockwise direction.The said sequence of windup-degree uses embodiment
1 to embodiment 7.
[comparative example 1 to 3]
The impeller of this comparative example, in addition to by the windup-degree θ of embeded slot 8, when from the direction of the opening of embeded slot, edge
It is arranged to except 0 degree, 7.5 degree, 10 degree clockwise, is made by method identical with embodiment.Impeller obtained
Weight, it is same as Example 1 be 385gr.The sequence of windup-degree is using embodiment 1 to embodiment 3.
To the impeller made in Examples and Comparative Examples, it is compared by testing as follows.
[1] air quantity characteristic and noise level
To impeller obtained in Examples and Comparative Examples, its air quantity characteristic is evaluated as follows.Above-mentioned system will be passed through
The impeller sets obtained are loaded on the indoor unit of such as air-conditioning, and air conditioner indoor unit is installed on apparatus for measuring air quantity, measure air output
(m37min) and the rotation number of impeller.In addition, measurement is made an uproar after air conditioner indoor unit is installed on noise-measuring room with wall hanging state
Sound level (dB (A)).The relationship of windup-degree and air quantity is shown in Fig. 6 by measurement result, and by windup-degree and identical air quantity
The relationship of noise level be shown in Fig. 7.
[2] Nz sound
Compare par measure above-mentioned [1] noise properties when noise pattern in Nz because level.Product of the present invention, will
Windup-degree is to (1 degree~2 degree of windup-degree, windup-degree 6 degree~7), (2 degree~3 degree of windup-degree, windup-degree 5 degree~6
Degree) and the case where (3 degree~5 degree of windup-degree) be shown in Fig. 8 to Figure 10.The noise pattern of current techniques is shown in Figure 11.
<6>performance evaluation of embodiment and comparative example
The relationship of Fig. 6 expression windup-degree and air output.If windup-degree increases since 0 degree, until windup-degree 7
It is almost the same until degree, if but windup-degree is more than 7 degree, show the tendency of sharply reduction.In the invention of embodiment 1 to 7
It can ensure stable air quantity in product.
The relationship of Fig. 7 expression windup-degree and noise book review.In embodiment 1 to embodiment 7, (windup-degree is at 1 degree~7 degree
Between) invention product in, noise level be 55.8dB (A)~56.2dB (A), belonging to does not influence the level that fan uses.Most
Good state is windup-degree when 3 degree~5 degree.It in comparative example 1 to 3, is belonged to more than the numerical value of 56.5dB (A)
Influence the level that fan uses.
Fig. 8 to 10 indicates the level that the Nz sound of invention product (embodiment 1 to 7) reduces with noise pattern.Figure 11 is to make an uproar
Sound spectrum figure indicates the level of the Nz sound of current techniques.The part labeled as " Nz sound " and " 2Nz " indicates to be used as Nz sound in the figure
Intensity (level).
Fig. 8 is the noise pattern of the invention product in 1 degree~2 degree of windup-degree and 6 degree~7 degree of windup-degree.Fig. 9
For the noise pattern of the invention product in 2 degree~3 degree of windup-degree and 5 degree~6 degree of windup-degree.Figure 10 is in torsion angle
The noise pattern of invention product at 3 degree~5 degree of degree.Noise pattern to foregoing invention product and as current techniques
Figure 11's of noise pattern is compared as follows:
The noise level of Nz sound and 2Nz sound in the systolic murmur figure of product of the present invention (embodiment), compared with current skill
The noise level of art is lower.In identical invention product, find when windup-degree is set as 3 degree~5 degree, Nz sound and
The noise level of 2Nz sound is minimum.
Claims (5)
1. a kind of fan impeller, multiple blade parts are molded into cylindrical shape on disc-shaped part to form component, and will
The above-mentioned disc-shaped part that the blade part of said modules is incorporated into another component forms；
The material of the blade part of impeller is the composite material of synthetic resin material and glass fibre, and the blade part of impeller is put down
With a thickness of the range of 0.3mm~0.8mm, moreover, making surface of the glass fibre towards blade part for being contained in blade part
The inside；
Multiple blade parts of said modules are formed with straight line；
In the face opposite with the side for the blade part for forming above-mentioned disc-shaped part, number identical as above-mentioned blade part is formed
The embeded slot of the front end for being fitted into blade part of amount；
Above-mentioned embeded slot is formed as, and the position of center line of above-mentioned embeded slot is configured at the above-mentioned leaf on above-mentioned disc-shaped part
On the basis of the center of the position of chip part, when from the direction of the opening of above-mentioned embeded slot, it is rotated in a clockwise direction 1
The position of the range of~7 degree of degree；
When being fitted into the front end of above-mentioned blade part in above-mentioned embeded slot, make embedding after the front end torsional deflection of blade part
It closes, to combine each component.
2. fan impeller according to claim 1, it is characterised in that: the bottom of above-mentioned embeded slot is in and chimeric leaf
The identical shape of the front end geometry of chip part, and the front end of blade part when being inserted into blade part to embeded slot is contacted upper
The part for stating embeded slot is formed as being formed by inclination in slowly varying inclined surface from the central portion of embeded slot to peripheral portion.
3. fan impeller according to claim 1 or 2, it is characterised in that: the material selection synthetic resin of blade part
The composite material of material and glass fibre, and select the containing ratio of glass fibre for 10%~40% tree in terms of weight rate
Resin composite material.
4. fan impeller according to claim 1 or 2, it is characterised in that: the material selection synthetic resin of blade part
The composite material of material and glass fibre, and the coefficient of elasticity (E') in the face direction on the surface of the blade part is 2.5 × 109Pa
~1.2 × 1010Pa。
5. fan impeller according to claim 3, it is characterised in that: the material selection synthetic resin material of blade part
With the composite material of glass fibre, and the coefficient of elasticity (E') in the face direction on the surface of the blade part be 2.5 × 109Pa~
1.2×1010Pa。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017212185A JP6479934B1 (en) | 2017-11-01 | 2017-11-01 | Blower impeller |
| JP2017-212185 | 2017-11-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109751279A true CN109751279A (en) | 2019-05-14 |
| CN109751279B CN109751279B (en) | 2022-04-05 |
Family
ID=65655735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811234311.9A Active CN109751279B (en) | 2017-11-01 | 2018-10-23 | Impeller for fan |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6479934B1 (en) |
| KR (1) | KR20190049436A (en) |
| CN (1) | CN109751279B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5864885U (en) * | 1981-10-26 | 1983-05-02 | 三国プラスチツクス株式会社 | cross flow impeller |
| JPS5877188U (en) * | 1981-11-20 | 1983-05-25 | 太平洋工業株式会社 | cross flow fan |
| JPS5919838Y2 (en) * | 1981-10-26 | 1984-06-08 | 三国プラスチツクス株式会社 | cross flow impeller |
| CN101233324A (en) * | 2005-08-05 | 2008-07-30 | 大金工业株式会社 | Cross-flow fan made of resin and method of manufacturing the same |
| CN105793575A (en) * | 2013-09-30 | 2016-07-20 | 日清纺精密机器株式会社 | Bladed wheel for fan |
Family Cites Families (1)
| 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 |
-
2017
- 2017-11-01 JP JP2017212185A patent/JP6479934B1/en active Active
-
2018
- 2018-09-03 KR KR1020180104849A patent/KR20190049436A/en unknown
- 2018-10-23 CN CN201811234311.9A patent/CN109751279B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5864885U (en) * | 1981-10-26 | 1983-05-02 | 三国プラスチツクス株式会社 | cross flow impeller |
| JPS5919838Y2 (en) * | 1981-10-26 | 1984-06-08 | 三国プラスチツクス株式会社 | cross flow impeller |
| JPS5877188U (en) * | 1981-11-20 | 1983-05-25 | 太平洋工業株式会社 | cross flow fan |
| CN101233324A (en) * | 2005-08-05 | 2008-07-30 | 大金工业株式会社 | Cross-flow fan made of resin and method of manufacturing the same |
| CN105793575A (en) * | 2013-09-30 | 2016-07-20 | 日清纺精密机器株式会社 | Bladed wheel for fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109751279B (en) | 2022-04-05 |
| JP2019085886A (en) | 2019-06-06 |
| KR20190049436A (en) | 2019-05-09 |
| JP6479934B1 (en) | 2019-03-06 |
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