CN100381707C - Propeller fan, propeller molding mold, and fluid feeding device - Google Patents

Propeller fan, propeller molding mold, and fluid feeding device Download PDF

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Publication number
CN100381707C
CN100381707C CNB200510107013XA CN200510107013A CN100381707C CN 100381707 C CN100381707 C CN 100381707C CN B200510107013X A CNB200510107013X A CN B200510107013XA CN 200510107013 A CN200510107013 A CN 200510107013A CN 100381707 C CN100381707 C CN 100381707C
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blade
rotor fan
coordinate
diameter
fan
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CN1743683A (en
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大塚雅生
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Sharp Corp
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Sharp Corp
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Abstract

In a propeller fan (1) according to the present invention, when coordinates in a cylindrical coordinate system having a z axis as a rotation axis of the propeller fan (1) are (r, [theta], z), a curved shape defined by prescribed r, [theta] and z coordinate values is determined as a base shape of a surface of a blade (3) of the propeller fan (1), and the surface of the blade (3) of the propeller fan (1) is configured by a curved surface obtained by enlarging or reducing the base shape in at least one of r, [theta] and z directions.

Description

Rotor fan and mold for forming thereof and fluid feeder
Technical field
The present invention relates to constitute the mold for forming of rotor fan, this rotor fan of gas fan and air conditioner outdoor unit, air cleaning machine, humidifier, dehumidifier, electric fan, fan-type heater, cooling unit, air interchanger and so on fluid feeder jointly with said gas fan with drive motor.
Background technique
In the past, in gas fan and Coolers, using the rotor fan.For example, cooling rotor fan is housed in the outdoor unit of air conditioner.
Existing above-mentioned cooling exists problems such as big, the efficient difference of when rotation noise with the rotor fan.For this reason, reduce noise, only need reduce air quantity and get final product, but do like this, can't give full play to cooling action.
In addition, because weight is big, drive motor will bear bigger load when therefore manufacture cost height not only, and gas fan started.For this reason, alleviate the weight of rotor fan, the thickness that only need reduce blade gets final product.Yet, reduce vane thickness merely, not only cause easily fluid on aerofoil, produce peel off, noise increases, and the rigidity of blade reduces, under the action of centrifugal force when gas fan is worked, the blade easy deformation causes the axial height of fan to reduce, thereby causes air quantity to reduce.
In addition, because near the intensity the root of blade is low, when gas fan is subjected to the surprise attack of high wind and during the fan high speed rotating, the centrifugal force during this high speed rotating might cause fan to damage.For this reason, increase the intensity of rotor fan, only need the local thickness that increases root of blade to get final product.But behind the thickness of local increase root of blade, will prolong significantly cool time in the process of making, and cause cost to increase.
Disclosure of an invention
The problems referred to above that The present invention be directed to the prior art existence propose, an object of the present invention is, rotor fan, its mold for forming that can realize big air quantity, high efficiency, low noise and the fluid feeder that can realize big air quantity, high efficiency, low noise are provided.
Another object of the present invention is, provides can realize big air quantity, high efficiency, low noise, rotor fan, its mold for forming that cost in light weight is low and can realize big air quantity, high efficiency, low noise, the fluid feeder that cost in light weight is low.
Another purpose of the present invention is, provides can realize big air quantity, high efficiency, low noise, cost in light weight is low, intensity improves rotor fan, its mold for forming and can realize big air quantity, high efficiency, low noise, the fluid feeder that cost in light weight is low, intensity improves.
Rotor fan of the present invention, at the running shaft with the rotor fan is that the coordinate of the cylindrical-coordinate system of z axle is when being made as (r, θ, z), with the curve form that determined by r coordinate figure shown in following table 3 and the table 4, θ coordinate figure and z coordinate figure basic shape as the blade surface of rotor fan
Figure C20051010701300131
So that above-mentioned basic shape is enlarged or dwindles and the curved surface that obtains constitutes the surface of the blade of rotor fan at least one direction of r, θ, z direction.
In table 3 and table 4, r represents that the running shaft with the rotor fan is the dimensionless r coordinate that the footpath of the cylindrical-coordinate system of z axle makes progress, θ represents that the running shaft with the rotor fan is the dimensionless θ coordinate that makes progress in week of the cylindrical-coordinate system of z axle, and z represents that the running shaft with the rotor fan is the dimensionless z coordinate on axial (short transverse) of cylindrical-coordinate system of z axle.
In addition, the last lattice (z in each row u) be the coordinate figure of the suction surface (suction side) of rotor fan, following lattice (z d) for the coordinate figure of pressure surface (blowing out side).Table 3 is listed the dimensionless coordinate figure of the z of r when scope 0.042～1 of 0.4～0.95 scope and θ, and table 4 is listed r, the θ of blade outer edge, the dimensionless coordinate figure of z.The content of table 1 is identical with table 3, and the content of table 2 is identical with table 4.
In addition, for the coordinate figure of calculating with transformation for mula of the present invention ± value in 5% scope, it should be interpreted as the value in the error allowed band and with the value of coordinate figure equivalence of the present invention.That is, for by the coordinate figure of calculating with transformation for mula of the present invention ± the shape that coordinate figure was determined in 5% scope, it should be interpreted as belonging to the shape in the technical scope of the present invention.
In addition, the shape that coordinate figure determined that obtains by each coordinate figure shown in table 1～table 4 is carried out the conformity conversion, also it should be interpreted as is shape in the impartial scope that changes of basic shape of the present invention.
On the rotor fan mold for forming that relates to a kind of local surfaces of the present invention, its that part surface that forms the rotor fan blade surface is to enlarge above-mentioned basic shape or to dwindle and the curved surface formation that obtains at least one direction of r, θ and z direction.
At the diameter of establishing rotor fan of the present invention is that the height of D, axial z direction is the angle of spread of h, said blade when being λ, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in table 3 and the table 4 to obtain from following transformation for mula (7).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Utilizing transformation for mula to change the occasion of the form of basic shape as mentioned above,, also can access identical result if utilize the coordinate figure that obtains through the conformity conversion by 3 dimension coordinate values shown in table 3 and the table 4.Therefore, even utilize the coordinate figure of calculating,, also it should be interpreted as belonging in the technical scope of the present invention as long as can calculate from following each transformation for mula through this conversion gained coordinate figure.
Figure C20051010701300161
On the rotor fan mold for forming that relates to another kind of local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (7) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan be the height of D, axial z direction be h, when blade sheet number is n, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in table 3 and the table 4 to obtain from following transformation for mula (8).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300171
On the rotor fan mold for forming that relates to another local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (8) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan is the height of D, axial z direction when being h, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in table 3 and the table 4 to obtain from following transformation for mula (9).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300181
On the rotor fan mold for forming that relates to another local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (9) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan is that the hub ratio of D, rotor fan diameter and hub portion diameter ratio is that the height of v, axial z direction is the angle of spread of h, blade when being λ, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in table 3 and the table 4 to obtain from following transformation for mula (10).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
On the rotor fan mold for forming that relates to another local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (10) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan be the hub ratio of D, rotor fan diameter and hub portion diameter ratio be the height of v, axial z direction be h, when blade sheet number is n, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in table 3 and the table 4 to obtain from following transformation for mula (11).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300201
On the rotor fan mold for forming that relates to another kind of local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (11) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan is that the hub ratio of D, rotor fan diameter and hub portion diameter ratio is the height of v, axial z direction when being h, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in table 3 and the table 4 to obtain from following transformation for mula (12).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300211
On the rotor fan mold for forming that relates to another kind of local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (12) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Fluid feeder of the present invention possesses the gas fan of the drive motor that has above-mentioned a certain rotor fan and this rotor fan is driven.
Rotor fan of the present invention, at the running shaft with the rotor fan is that the coordinate of the cylindrical-coordinate system of z axle is when being made as (r, θ, z), with the curve form that determined by r coordinate figure shown in the following table 2, θ coordinate figure and z coordinate figure basic shape as the blade surface of rotor fan
Figure C20051010701300221
So that above-mentioned basic shape is enlarged or dwindles and the curved surface that obtains constitutes the surface of the blade of rotor fan at least one direction of r, θ, z direction.
In table 102, r represents that the running shaft of rotor fan is the dimensionless r coordinate that the footpath of the cylindrical-coordinate system of z axle makes progress, θ represents that the running shaft of rotor fan is the dimensionless θ coordinate that makes progress in week of the cylindrical-coordinate system of z axle, and z represents that the running shaft of rotor fan is the dimensionless z coordinate on axial (short transverse) of cylindrical-coordinate system of z axle.
In addition, the last lattice (z in each row u) be the coordinate figure of the suction surface (suction side) of rotor fan, following lattice (z d) for the coordinate figure of pressure surface (blowing out side).Table 102 is listed the dimensionless coordinate figure of the z of r when scope 0.042～1 of 0.3～0.95 scope and θ.The content of table 101 is identical with table 102.
In addition, for the coordinate figure of calculating with transformation for mula of the present invention ± value in 5% scope, it should be interpreted as the value in the error allowed band and with the value of coordinate figure equivalence of the present invention.That is, for by the coordinate figure of calculating with transformation for mula of the present invention ± the shape that coordinate figure was determined in 5% scope, it should be interpreted as belonging to the shape in the technical scope of the present invention.
In addition, the shape that coordinate figure determined that obtains by each coordinate figure shown in the table 102 is carried out the conformity conversion, also it should be interpreted as is shape in the impartial scope that changes of basic shape of the present invention.
On the rotor fan mold for forming that relates to a kind of local surfaces of the present invention, its that part surface that forms the rotor fan blade surface is to enlarge above-mentioned basic shape or dwindle and the curved surface that obtains forms at least one direction of r, θ and z direction.
At the diameter of establishing rotor fan of the present invention is that the height of D, axial z direction is the angle of spread of h, blade when being λ, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the table 2 to obtain from following transformation for mula (107).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Utilizing transformation for mula to change the occasion of the form of basic shape as mentioned above,, also can access identical result if utilize the coordinate figure that obtains through the conformity conversion by 3 dimension coordinate values shown in the table 2.Therefore, even utilize the coordinate figure of calculating,, also it should be interpreted as belonging in the technical scope of the present invention as long as can calculate from following each transformation for mula through this conversion gained coordinate figure.
Figure C20051010701300241
On the rotor fan mold for forming that relates to another kind of local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (107) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan be the height of D, axial z direction be h, when blade sheet number is n, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the table 2 to obtain from following transformation for mula (108).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
On the rotor fan mold for forming that relates to another local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (108) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan is the height of D, axial z direction when being h, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the above-mentioned table 2 to obtain from following transformation for mula (109).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300261
On the rotor fan mold for forming that relates to another local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (109) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan is that the hub ratio of D, rotor fan diameter and hub portion diameter ratio is that the height of v, axial z direction is the angle of spread of h, blade when being λ, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the table 102 to obtain from following transformation for mula (110).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
On the rotor fan mold for forming that relates to another local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (110) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan be the hub ratio of D, rotor fan diameter and hub portion diameter ratio be the height of v, axial z direction be h, when blade sheet number is n, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the table 2 to obtain from following transformation for mula (111).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300281
On the rotor fan mold for forming that relates to another kind of local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (111) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan is that the hub ratio of D, rotor fan diameter and hub portion diameter ratio is the height of v, axial z direction when being h, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u), and the r that blows out side surface, θ, the z coordinate (r of decision blade 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the table 102 to obtain from following transformation for mula (112).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300291
On the rotor fan mold for forming that relates to another kind of local surfaces of the present invention, it forms that part surface of rotor fan blade surface, with the coordinate (r that obtains from above-mentioned transformation for mula (112) 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Fluid feeder of the present invention possesses the gas fan of the drive motor that has above-mentioned a certain rotor fan and this rotor fan is driven.
Rotor fan of the present invention, at the running shaft with the rotor fan is that the coordinate of the cylindrical-coordinate system of z axle is when being made as (r, θ, z), with the curve form that determined by r coordinate figure shown in the following table 202, θ coordinate figure and z coordinate figure basic shape as the blade surface of rotor fan
Figure C20051010701300301
So that above-mentioned basic shape is enlarged or dwindles and the curved surface that obtains constitutes the surface of the blade of rotor fan at least one direction of r, θ, z direction.
In table 202, r represents that the running shaft of rotor fan is the dimensionless r coordinate that the footpath of the cylindrical-coordinate system of z axle makes progress, θ represents that the running shaft of rotor fan is the dimensionless θ coordinate that makes progress in week of the cylindrical-coordinate system of z axle, and z represents that the running shaft of rotor fan is the dimensionless z coordinate on axial (short transverse) of cylindrical-coordinate system of z axle.
In addition, the last lattice (z in each row u) be the coordinate figure of the suction surface (suction side) of rotor fan, following lattice (z d) for the coordinate figure of pressure surface (blowing out side).Table 202 is listed the dimensionless coordinate figure of the z of r when scope 0.042～1 of 0.3～0.95 scope and θ.The content of table 201 is identical with table 202.
In addition, for the coordinate figure of calculating with transformation for mula of the present invention ± value in 5% scope, it should be interpreted as the value in the error allowed band and with the value of coordinate figure equivalence of the present invention.That is, for by the coordinate figure of calculating with transformation for mula of the present invention ± the shape that coordinate figure was determined in 5% scope, it should be interpreted as belonging to the shape in the technical scope of the present invention.
In addition, the shape that coordinate figure determined that obtains by each coordinate figure shown in the table 202 is carried out the conformity conversion, also it should be interpreted as is shape in the impartial scope that changes of basic shape of the present invention.
On the rotor fan mold for forming that relates to a kind of local surfaces of the present invention, its that part surface that forms the rotor fan blade surface is to enlarge above-mentioned basic shape or dwindle and the curved surface that obtains forms at least one direction of r, θ and z direction.
At the diameter of establishing rotor fan of the present invention is that the height of D, axial z direction is the angle of spread of h, blade when being λ, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the table 2 to obtain from following transformation for mula (207).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Utilizing transformation for mula to change the occasion of the form of basic shape as mentioned above,, also can access identical result if utilize the coordinate figure that obtains through the conformity conversion by 3 dimension coordinate values shown in the table 2.Therefore, even utilize the coordinate figure of calculating,, also it should be interpreted as belonging in the technical scope of the present invention as long as can calculate from following each transformation for mula through this conversion gained coordinate figure.
Figure C20051010701300321
On the rotor fan mold for forming that relates to another kind of local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (207) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan be the height of D, axial z direction be h, when blade sheet number is n, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the table 2 to obtain from following transformation for mula (208).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300331
On the rotor fan mold for forming that relates to another local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (208) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan is the height of D, axial z direction when being h, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the above-mentioned table 202 to obtain from following transformation for mula (209).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300341
On the rotor fan mold for forming that relates to another local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (209) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan is that the hub ratio of D, rotor fan diameter and hub portion diameter ratio is that the height of v, axial z direction is the angle of spread of h, blade when being λ, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the table 202 to obtain from following transformation for mula (210).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300351
On the rotor fan mold for forming that relates to another local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (210) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan be the hub ratio of D, rotor fan diameter and hub portion diameter ratio be the height of v, axial z direction be h, when blade sheet number is n, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the table 202 to obtain from following transformation for mula (211).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300361
On the rotor fan mold for forming that relates to another kind of local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (211) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
When the diameter of establishing the rotor fan is that the hub ratio of D, rotor fan diameter and hub portion diameter ratio is the height of v, axial z direction when being h, r, θ, the z coordinate (r on the surface, suction side of decision blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) can utilize 3 dimension coordinate values shown in the table 2 to obtain from following transformation for mula (212).And the surface of the blade of rotor fan is with by coordinate (r 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Figure C20051010701300371
On the rotor fan mold for forming that relates to another kind of local surfaces of the present invention, it forms that part surface coordinate (r to obtain from above-mentioned transformation for mula (212) of rotor fan blade surface 1, θ 1, z 1u) and coordinate (r 1, θ 1, z 1d) curved surface that determined constitutes.
Fluid feeder of the present invention possesses the gas fan of the drive motor that has above-mentioned a certain rotor fan and this rotor fan is driven.
The simple declaration of accompanying drawing
Fig. 1 is the plan view of the rotor fan of embodiments of the invention 1.
Fig. 2 is the stereogram of the rotor fan (suction surface) of embodiments of the invention 1.
Fig. 3 is the stereogram of the rotor fan (pressure surface) of embodiments of the invention 1.
Fig. 4 is the plan view of the rotor fan of comparative example 1.
Fig. 5 is the stereogram of the rotor fan (suction surface) of comparative example 1.
Fig. 6 is the stereogram of the rotor fan (pressure surface) of comparative example 1.
Fig. 7 is the side elevation in partial section of rotor fan mold for forming of the present invention.
Fig. 8 A and Fig. 8 C are the side views of fluid feeder of the present invention, and Fig. 8 B is the front pie graph of fluid feeder of the present invention.
Fig. 9 is the stereogram of a form of implementation of the gas fan of fluid feeder of the present invention.
Figure 10 is the stereogram of a form of implementation of the gas fan of fluid feeder of the present invention.
Figure 11 is the plan view of the rotor fan of the embodiment of the invention 21.
Figure 12 is the stereogram of the rotor fan (suction surface) of embodiments of the invention 21.
Figure 13 is the stereogram of the rotor fan (pressure surface) of embodiments of the invention 21.
Figure 14 is the plan view of the rotor fan of comparative example 4.
Figure 15 is the stereogram of the rotor fan (suction surface) of comparative example 4.
Figure 16 is the stereogram of the rotor fan (pressure surface) of comparative example 4.
Figure 17 is the side elevation in partial section of rotor fan mold for forming of the present invention.
Figure 18 A and Figure 18 C are the side views of fluid feeder of the present invention, and Figure 18 B is the front pie graph of fluid feeder of the present invention.
Figure 19 is the stereogram of another form of implementation of the gas fan of fluid feeder of the present invention.
Figure 20 is the stereogram of another form of implementation of the gas fan of fluid feeder of the present invention.
Figure 21 is the plan view of the rotor fan of the embodiment of the invention 41.
Figure 22 is the stereogram of the rotor fan (suction surface) of embodiments of the invention 41.
Figure 23 is the stereogram of the rotor fan (pressure surface) of embodiments of the invention 41.
Figure 24 is the plan view of the rotor fan of comparative example 7.
Figure 25 is the stereogram of the rotor fan (suction surface) of comparative example 7.
Figure 26 is the stereogram of the rotor fan (pressure surface) of comparative example 7.
Figure 27 is the side elevation in partial section of rotor fan mold for forming of the present invention.
Figure 28 A and Figure 28 C are the side views of fluid feeder of the present invention, and Figure 28 B is the front pie graph of fluid feeder of the present invention.
Figure 29 is the stereogram of another form of implementation of the gas fan of fluid feeder of the present invention.
Figure 30 is the stereogram of another form of implementation of the gas fan of fluid feeder of the present invention.
The optimal way that carries out an invention
Below, the form of implementation to rotor fan involved in the present invention, rotor fan mold for forming and fluid feeder 1～30 describes in conjunction with the accompanying drawings.
Fig. 1 illustrates the plan view of rotor fan 1 of the present invention.Rotor fan 1 of the present invention is for example to be made of one piece by the synthetic resin such as AS resin of interior combined glass glass fiber.The diameter D=400mm of rotor fan 1, the axial height h=140mm of (z direction), the blade sheet is counted the n=3 sheet, the angle of spread λ of blade=120 degree (deg), hub ratio v=0.35 (hub diameter vD=140mm) is provided with 3 blades 3 that are wholely set radially around hub portion 2.
In addition, a key character of the present invention is, to be obtained the surface configuration of the blade 3 of rotor fan 1 as the basis by the basic shape that specific coordinate figure was determined.That is, each coordinate figure of basic shape is carried out conversion by set transformation for mula respectively on r, θ, z direction, and with the curve form that determined by the conversion gained coordinate figure surface configuration as the blade 3 of rotor fan 1.
Basic shape of the present invention, its typical shape are determined by coordinate figure shown in aforementioned table 3 and the table 4.But, multiply by that set coefficient carries out the conversion of this coordinate figure and the shape that coordinate figure determined that obtains also should be interpreted as it and basic shape equivalence of the present invention by coordinate figure shown in aforementioned table 3 and the table 4.
At the running shaft with rotor fan 1 is the cylindrical-coordinate system of z axle when expressing, the coordinate (r on the suction surface surface of blade 3 1, θ 1, z 1u) and the coordinate (r on the pressure surface surface of blade 3 1, θ 1, z 1d) be with the 3 dimension coordinate values of dimensionless shown in table 3, the table 4 through following transformation for mula 13 carry out conversion and the curved surface that coordinate figure was determined that obtains, promptly by coordinate figure shown in table 5, the table 6 specific curved surface constitute.
This curved surface also can be by the coordinate figure of each coordinate ± coordinate figure in 5% scope specific curved surface.In addition, though can utilize the coordinate figure that obtains through the conformity conversion by coordinate figure shown in aforementioned table 3 and the table 4 to obtain coordinate figure shown in table 5, the table 6, but in this occasion, only need make transformation for mula 13 have some distortion to meet the demands, thereby it should to be interpreted as be distortion in the impartial excursion of the present invention.
Figure C20051010701300411
Figure C20051010701300421
Among Fig. 1, cylindrical-coordinate system r, θ illustrate with the single-point line.The z axle is not shown in Fig. 1, the z axle in Fig. 1 be pass rotor fan 1 hub portion 2 rotating center O and perpendicular to the line (i.e. the line that overlaps with the axis of rotation of rotor fan 1) of paper.
Among Fig. 1, blade 3 for rotor fan 1, the scope of drawing on the r direction 80mm～190mm is the line of cutting apart at interval with 10mm, and the scope of drawing on the θ direction 0deg～125deg is the line of cutting apart at interval with 5deg, and the coordinate figure of the z at each intersection point place is shown in Table 5.Wherein, the last lattice in each row illustrate the value of the suction surface (suction side) of rotor fan, and following lattice illustrate the value of pressure surface (blowing out side).In addition, r, the θ of the outer edge of the blade 3 in θ is the scope of 0deg～125deg, each coordinate figure of z are shown in table 6.
The thick root thickening of the sheet of blade 3 at blade 3.In addition, the shape on the surface of blade 3 both can be level and smooth shape, also can be provided with groove or projection, be the concavo-convex of counter sink shape and so on.In addition, the trailing edge of blade 3 also can indentation.In each transformation for mula, d: arbitrarily, f u=f d: be arbitrarily because no matter d and f u=f dElect what value as, all can make the identical cause of shape of rotor fan.
In addition, rotor fan 1 of the present invention, both can be one-body molded by ABS (acrylonitrile-butadiene-styrene (ABS)) resin or polypropylene synthetic resin such as (PP), also the synthetic resin that can intensity be increased by containing mica etc. is one-body molded, but can not be integrated also.
Fig. 7 illustrates and is used for forming example rotor fan 1 shown in Figure 1, rotor fan mold for forming 4.As shown in Figure 7, mould 4 is to be used for mould with molding synthetic resin rotor fan 1, has fixed mould 5 and flexible mould 6.
And, roughly the same by the shape of the shape of two moulds 5,6 die cavitys that determined and rotor fan 1.Form the coordinate (r of that a part of die surface on blade 3 surfaces on the said fixing mould 5 1, θ 1, z 1u) and flexible mould 6 on form the coordinate (r of that a part of die surface on blade 3 surfaces 1, θ 1, z 1d), can carry out conversion by dimensionless 3 dimension coordinate values shown in following transformation for mula 14 his-and-hers watches 3, the table 4 and obtain.
Figure C20051010701300441
That is, fixed mould 5 and flexible mould 6 have respectively by coordinate figure shown in table 5, the table 6 specific curvature portion.And in this occasion, each curved surface also can by each coordinate figure ± coordinate figure institute in 5% scope is specific.
Here, the size of the above-mentioned curve form of mould is determined on the basis that also can the contraction to moulding the time takes in.In this occasion, shaping die 4 also can form like this, promptly, for can after contraction, form have curved surface by 3 dimension coordinate values shown in above-mentioned table 5, the table 6 ± the rotor fan 1 of the blade 3 of the specific 3 dimension curved surfaces of coordinate figure in 5% scope, factors such as the contraction in the time of can be with moulding, warpage, distortion are taken into account and above-mentioned coordinate data are revised; Include these contents in the shaping die of the present invention.
In addition, rotor fan mold for forming 4 in this form of implementation as shown in Figure 7, the suction surface surface of rotor fan 1 forms by fixed mould 5, the pressure surface surface of rotor fan 1 forms by flexible mould 6, but the pressure surface surface that also can be rotor fan 1 forms by fixed mould 5, and the suction surface surface of rotor fan 1 forms by flexible mould 6.
Below, embodiments of the invention and comparative example are carried out specific description.
(embodiment 1)
The rotor fan 1 of the height h=140mm of diameter D=400mm shown in Figure 1, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.35 (hub diameter vD=140mm) that the blade sheet is counted n=3 sheet, blade, the surface of its blade forms with the dimension of 3 shown in above-mentioned table 5, the table 6 curved surface.Fig. 2 and Fig. 3 illustrate the stereogram of the rotor fan 1 of present embodiment 1.
(embodiment 2)
The surface of the blade of the rotor fan 1 of the height h=154mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 15, that is, with by table 7 and table 8 specific 3 dimension curved surfaces form.
Figure C20051010701300471
(embodiment 3)
The rotor fan 1 of the height h=147mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 16, that is, with by table 9 and table 10 specific 3 dimension curved surfaces form.
Figure C20051010701300501
(embodiment 4)
The rotor fan 1 of the height h=133mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 17, that is, with by table 11, table 12 specific 3 dimension curved surfaces form.
Figure C20051010701300511
Figure C20051010701300531
(embodiment 5)
The rotor fan 1 of the height h=126mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 18, that is, with by table 13, table 14 specific 3 dimension curved surfaces form.
Figure C20051010701300541
Figure C20051010701300551
Figure C20051010701300561
(embodiment 6)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 19, that is, with by table 15, table 16 specific 3 dimension curved surfaces form.
Figure C20051010701300571
Figure C20051010701300591
(embodiment 7)
The rotor fan 1 of the height h=126mm of diameter D=400mm, axial (z direction), angle of spread λ=108deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 20, that is, with by table 17, table 18 specific 3 dimension curved surfaces form.
Figure C20051010701300601
Figure C20051010701300611
Figure C20051010701300621
(embodiment 8)
The rotor fan 1 of the height h=140mm of diameter D=400mm, axial (z direction), angle of spread λ=90deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 21, that is, with by table 19, table 20 specific 3 dimension curved surfaces form.
Figure C20051010701300631
Figure C20051010701300651
(embodiment 9)
The rotor fan 1 of the height h=140mm of diameter D=400mm, axial (z direction), angle of spread λ=132deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 22, that is, with by table 21, table 22 specific 3 dimension curved surfaces form.
Figure C20051010701300661
Figure C20051010701300671
Figure C20051010701300681
(embodiment 10)
The rotor fan 1 of the height h=140mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 23, that is, with by table 23, table 24 specific 3 dimension curved surfaces form.
Figure C20051010701300691
Figure C20051010701300711
(embodiment 11)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 24, that is, with by table 25, table 26 specific 3 dimension curved surfaces form.
Figure C20051010701300721
Figure C20051010701300731
(embodiment 12)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 25, that is, with by table 27, table 28 specific 3 dimension curved surfaces form.
Figure C20051010701300761
Figure C20051010701300771
(embodiment 13)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 26, that is, with by table 29, table 30 specific 3 dimension curved surfaces form.
Figure C20051010701300781
Figure C20051010701300801
(embodiment 14)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 27, that is, with by table 31, table 32 specific 3 dimension curved surfaces form.
Figure C20051010701300811
Figure C20051010701300821
Figure C20051010701300831
(embodiment 15)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=90deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=4 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 28, that is, with by table 33, table 34 specific 3 dimension curved surfaces form.
Figure C20051010701300851
Figure C20051010701300861
(embodiment 16)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=72deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=5 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 29, that is, with by table 35, table 36 specific 3 dimension curved surfaces form.
Figure C20051010701300871
Figure C20051010701300881
Figure C20051010701300891
(embodiment 17)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=108.5deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=5 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 30, that is, with by table 37, table 38 specific 3 dimension curved surfaces form.
Figure C20051010701300901
Figure C20051010701300911
Figure C20051010701300921
(embodiment 18)
The rotor fan 1 of the height h=161mm of diameter D=460mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.326 (hub diameter v D=150mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 31, that is, with by table 39, table 40 specific 3 dimension curved surfaces form.
Figure C20051010701300931
Figure C20051010701300941
Figure C20051010701300951
(embodiment 19)
The rotor fan 1 of the height h=168mm of diameter D=460mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.326 (hub diameter v D=150mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 32, that is, with by table 41, table 42 specific 3 dimension curved surfaces form.
Figure C20051010701300961
Figure C20051010701300971
Figure C20051010701300981
(embodiment 20)
The rotor fan 1 of the height h=140mm of diameter D=460mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.326 (hub diameter v D=150mm) that the blade sheet is counted n=3 sheet, blade, with with table 3, table 4 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 33, that is, with by table 43, table 44 specific 3 dimension curved surfaces form.
Figure C20051010701300991
Figure C20051010701301001
Below, describe in conjunction with Fig. 4～Fig. 6 with regard to comparative example of the present invention.Fig. 4 is the plan view of the rotor fan of comparative example 1, and Fig. 5 and Fig. 6 are the stereograms of the rotor fan of comparative example 1.
(comparative example 1)
As shown in Figure 4, diameter D=400mm, axially height h=140mm, the blade sheet of (z direction) are counted the rotor fan 1 of n=3 sheet, hub ratio v=0.35 (hub diameter v D=140mm), the surface of its blade 3 with by following table 45 3 specific dimension curved surfaces form.Among the figure 2 is hub portion.In addition, r, θ, z set similarly to Example 1.
Figure C20051010701301031
(comparative example 2)
Diameter D=316mm, axially height h=100mm, the blade sheet of (z direction) are counted the rotor fan 1 of n=5 sheet, hub ratio v=0.253 (hub diameter v D=80mm), the surface of its blade with by following table 46 3 specific dimension curved surfaces form.In addition, r, θ, z set similarly to Example 1.
Figure C20051010701301051
(comparative example 3)
Diameter D=460mm, axially height h=168mm, the blade sheet of (z direction) are counted the rotor fan 1 of n=3 sheet, hub ratio v=0.35 (hub diameter v D=161mm), the surface of its blade with by following table 47 3 specific dimension curved surfaces form.In addition, r, θ, z set similarly to Example 1.
Figure C20051010701301071
With aforesaid embodiment 1 to embodiment 20 and, comparative example 1 to the rotor fan of comparative example 3 is installed in the outdoor unit of air conditioner and to air quantity, power consumption, noise etc. and measures.
At first, for fan diameter be φ 400, embodiment 1 is to the fan of embodiment 13 and comparative example 1, uses the outdoor unit of refrigerating capacity as the 28kW level, drive with the DC motor.It the results are shown in following table 48.
Secondly, for fan diameter be φ 316, embodiment 14 is to the fan of embodiment 17 and comparative example 2, uses the built in type outdoor unit, drive with the AC motor.It the results are shown in following table 49.
Figure C20051010701301111
Secondly, for fan diameter be φ 460, embodiment 18 is to the fan of embodiment 20 and comparative example 3, uses the large-scale outdoor unit of multi-mode, drive with the AC motor.It the results are shown in following table 50.
Figure C20051010701301131
By above-mentioned table 48 as can be known, embodiments of the invention 1 are compared with the comparative example 1 of the rotor fan of same diameter to rotor fan shown in the embodiment 13, and power consumption had reduced more than 40% when air quantity was identical, and in addition, noise can reduce by 4～6db.
In addition, by above-mentioned table 49 as can be known, embodiments of the invention 14 are compared with the comparative example 2 of the rotor fan of same diameter to rotor fan shown in the embodiment 17, and power consumption had reduced 15～30% when air quantity was identical, and in addition, noise can reduce by 3～5db.
In addition, by above-mentioned table 50 as can be known, embodiments of the invention 18 are compared with the comparative example 3 of the rotor fan of same diameter to rotor fan shown in the embodiment 20, and power consumption had reduced 40～45% when air quantity was identical, and in addition, noise can reduce by 3～5db.
In addition, the embodiment 1 of above-mentioned table 48 under the situation of same diameter D=400mm, identical angle of spread λ=120deg, can satisfy the height h of following formula 34 as its height to embodiment 6, be the embodiment 1 of h=140, have superiority most aspect efficient and the noise.
c = λ = 360 / n = 2400 7 × h D . . . ( 34 )
In addition, among the embodiment 1 of above-mentioned table 48, embodiment 8 and the embodiment 9, mounted blade angle λ when same diameter D=400mm, equal height h=140mm can satisfy the mounted blade angle of following formula 35, and promptly the embodiment 1 of λ=120 has superiority most aspect efficient and the noise.
c = λ = 360 / n = 2400 7 × h D . . . ( 35 )
Among the embodiment 5 and embodiment 7 of above-mentioned table 48, the mounted blade angle λ when same diameter D=400mm, equal height h=126mm, compared with embodiment 5, embodiment 7 more presents superiority.That is, in following formula 36, when the former and the latter were inequality, the latter had superiority.
c = λ = 360 / n c = λ = 2400 7 × h D . . . ( 36 )
In addition, among the embodiment 1 and embodiment 10 of above-mentioned table 48, with regard to the hub ratio v during with regard to same diameter D=400mm, equal height h=140mm, identical mounted blade angle λ=120deg, because embodiment 10 carries out conversion with respect to embodiment 1 to satisfy following formula 37, therefore, aspect efficient and noise, embodiment 10 presents superiority similarly to Example 1.
a = 10 13 D ( 1 - v ) b = - 10 13 D ( 1 - v ) × 0.35 + vD 2 . . . ( 37 )
In addition, for the embodiment 1 of above-mentioned table 48, embodiment 6, embodiment 11 to embodiment 13, e during with regard to same diameter D=400mm, equal height h=112mm, identical mounted blade angle λ=120deg u, e d, f u, f dHow to determine to describe.
Embodiment 6 compares with embodiment 1, and h/D is little, i.e. the thin thickness of fin.Therefore, be applied to when fan rotates under the action of centrifugal force on the fin (blade), fin produces moderate finite deformation makes the height of fin reduce, thereby efficient difference noise is big.
For preventing the generation of this situation, as long as set e according to following transformation for mula 38 u, e d, f uAnd f dBetween relation, the thickness that increases fin gets final product, embodiment 11 presents superiority with respect to embodiment 6 to embodiment 13.
Figure C20051010701301152
Work as e u＜e d, f u＞f dThe time, because very big change takes place the fin mold shape, will cause deterioration of efficiency, noise to increase; And work as e u=e d, f u＜f dThe time, e u＞e d, f u＜f dThe time, e u＜e d, f u＜f dThe time, e u＜e d, f u=f dThe time, airfoil shape is untenable.
In addition, the embodiment 14 of above-mentioned table 49 is to embodiment 16, blade sheet number is the embodiment 14 of the value n=3 sheet of the most approaching following formula 39 when same diameter D=316mm, equal height h=100mm, mounted blade angle λ=360/n, has superiority most aspect efficient and the noise.
2400 7 × h D = 2400 7 × 100 316 = 108.5 . . . ( 39 )
In addition, when the embodiment 16 and the embodiment 17 of above-mentioned table 49 compared, compare with embodiment 16, embodiment 17 more presents superiority.This is the result that the mounted blade angle λ during to same diameter D=316mm, equal height h=100mm, identical blade sheet number=5 compares.That is, in following formula 40, when the former and the latter were inequality, the latter presented superiority.
c = λ = 360 / n c = λ = 2400 7 × h D . . . ( 40 )
In addition, the embodiment 18 of above-mentioned table 50 compares with embodiment 19, embodiment 20 to embodiment 20, and embodiment 18 presents superiority.This is to same diameter D=460mm, mounted blade angle λ and the result that compares of height h when identical blade sheet is counted the n=3 sheet.Promptly, when selecting mounted blade angle λ and height h, not only to select λ, also select the blade sheet to count n, mounted blade angle λ and height h, thereby make it have more superiority with the 2nd formula (Chinese style) that can satisfy in the formula 41 with the 1st formula (following formula) that can satisfy in the following formula 41.That is, for rotor fan of the present invention, the 3rd formula (following formula) in the following formula 41 is very important when the decision design phiolosophy.
c = λ = 360 / n = 2400 7 × h D . . . ( 41 )
360 / n = 2400 7 × h D
Below, describe with regard to fluid feeder involved in the present invention.Fluid feeder 7 shown in Figure 8 possesses the gas fan 9 that is made of embodiment 1 rotor fan 1 and drive motor 8, by this gas fan 9 fluid is sent.
As the fluid feeder of this structure, air conditioner, air cleaning machine, humidifier, fan, fan-type heater, cooling unit, air interchanger etc. are for example arranged, and the fluid feeder 7 of this form of implementation is the outdoor unit 10 of air conditioner.
Possess outdoor heat converter 11 in this outdoor unit 10, carry out heat exchange effectively by above-mentioned gas fan 9.At this moment, gas fan 9 is arranged in the outdoor unit 10 by motor angle steel 12, and the blow-off outlet 13 of outdoor unit 10 is horn mouth 14 as shown in Figure 9.
In addition, also can be provided with in the fluid feeder 7 and have ring-type back-up ring 15 to be arranged on gas fan 9 around the rotor fan 1 as shown in figure 10.In this occasion,, can stir discharge water and discharge water is blown on the outdoor heat converter 11 to seek higher efficient as the air conditioners such as window formula that indoor set and outdoor unit are made of one.
The outdoor unit 10 of this form of implementation possesses embodiment 1 rotor fan 1, thereby is the quiet outdoor unit of low noise.In addition, because rotor fan 1 is the fan that fan efficiency is improved, thereby be to realize energy-conservation high efficiency outdoor unit.Can infer, also can access same result when adopting other embodiment's rotor fan.
Below, another form of implementation with regard to rotor fan involved in the present invention, rotor fan mold for forming and fluid feeder describes in conjunction with Figure 11 to Figure 20.
Figure 11 illustrates the plan view of rotor fan 1 of the present invention.Rotor fan 1 of the present invention is for example to be made of one piece by the synthetic resin such as AS resin that include glass fibre.The diameter D=400mm of rotor fan 1, the axial height h=140mm of (z direction), the blade sheet is counted the n=3 sheet, the angle of spread λ of blade=120 degree (deg), hub ratio v=0.275 (hub diameter v D=110mm) is provided with 3 blades 3 that are wholely set radially around hub portion 2.
In addition, a key character of the present invention is, to be obtained the surface configuration of the blade 3 of rotor fan 1 as the basis by the basic shape that specific coordinate figure was determined.That is, each coordinate figure of basic shape is carried out conversion by set transformation for mula respectively on r, θ, z direction, and with the curve form that determined by the conversion gained coordinate figure surface configuration as the blade 3 of rotor fan 1.
Basic shape of the present invention, its typical shape are determined by coordinate figure shown in the aforementioned table 2.But, multiply by that set coefficient carries out the conformity conversion of this coordinate figure and the shape that coordinate figure determined that obtains also should be interpreted as it and basic shape equivalence of the present invention by coordinate figure shown in the aforementioned table 2.
At the running shaft with rotor fan 1 is the cylindrical-coordinate system of z axle when expressing, the coordinate (r on the suction surface surface of blade 3 1, θ 1, z 1u) and the coordinate (r on the pressure surface surface of blade 3 1, θ 1, z 1d) by with the 3 dimension coordinate values of dimensionless shown in the table 102 through following transformation for mula 113 carry out conversion and the coordinate figure that obtains specific curved surface, promptly by coordinate figure shown in the table 103 specific curved surface constitute.
This curved surface also can be by the coordinate figure of each coordinate ± coordinate figure in 5% scope specific curved surface.In addition, though can utilize the coordinate figure that obtains through the conformity conversion by coordinate figure shown in the aforementioned table 102 to obtain coordinate figure shown in the table 103, but in this occasion, only need make transformation for mula 113 have some distortion to meet the demands, thereby it should to be interpreted as be distortion in the impartial excursion of the present invention.
Figure C20051010701301181
Among Figure 11, cylindrical-coordinate system r, θ illustrate with the single-point line.The z axle is not shown in Figure 11, the z axle in Fig. 1 be pass rotor fan 1 hub portion 2 rotating center O and perpendicular to the line (i.e. the line that overlaps with the axis of rotation of rotor fan 1) of paper.
Among Figure 11, blade 3 for rotor fan 1, the scope of drawing on the r direction 60mm～190mm is the line of cutting apart at interval with 10mm, and the scope of drawing on the θ direction 0deg～125deg is the line of cutting apart at interval with 5deg, and the coordinate figure of the z at each intersection point place is shown in the table 103.Wherein, the last lattice in each row illustrate the value of the suction surface (suction side) of rotor fan, and following lattice illustrate the value of pressure surface (blowing out side).
The sheet of blade 3 is thick in the root place of blade 3 thickening.In addition, for weight reduction, the edge of blade 3 is done as thin as a wafer, and therefore, when the not smooth situation of resin flows occurring when moulding, also can compare with table 3 increases local thickness.In addition, the shape on blade 3 surfaces both can be level and smooth shape, also can be provided with groove or projection, be the concavo-convex of counter sink shape and so on.In addition, the trailing edge of blade 3 also can indentation.In each transformation for mula, d why: arbitrarily, and f u=f d: arbitrarily, be because no matter d and f u=f dElect what value as, all can make the identical cause of shape of rotor fan.
In addition, rotor fan 1 of the present invention, both can be one-body molded by ABS (acrylonitrile-butadiene-styrene) resin or polypropylene synthetic resin such as (PP), also the synthetic resin that can intensity be increased by containing mica etc. is one-body molded, but can not be integrated also.
Figure 17 illustrates and is used for forming example rotor fan 1 shown in Figure 11, rotor fan mold for forming 4.As shown in figure 17, mould 4 is to be used for mould with molding synthetic resin rotor fan 1, has fixed mould 5 and flexible mould 6.
And, roughly the same by the shape of the shape of two moulds 5,6 die cavitys that determined and rotor fan 1.Form the coordinate (r of that a part of die surface on blade 3 surfaces on the said fixing mould 5 1, θ 1, z 1u) and flexible mould 6 on form the coordinate (r of that a part of die surface on blade 3 surfaces 1, θ 1, z 1d) can carry out conversion by dimensionless 3 dimension coordinate values shown in following transformation for mula 114 his-and-hers watches 102 and obtain.
Figure C20051010701301211
That is, fixed mould 5 and flexible mould 6 have respectively by coordinate figure shown in the table 103 specific curvature portion.And in this occasion, each curved surface also can by each coordinate figure ± coordinate figure institute in 5% scope is specific.
Here, determined on the basis that the size of the above-mentioned curve form of mould also can the contraction to moulding the time takes in.In this occasion, shaping die 4 also can form like this, promptly, for can after contraction, form have curved surface by 3 dimension coordinate values shown in the above-mentioned table 3 ± the rotor fan 1 of the blade 3 of the specific 3 dimension curved surfaces of coordinate figure in 5% scope, factors such as the contraction in the time of can be with moulding, warpage, distortion are taken into account and above-mentioned coordinate data are revised; Include these contents in the shaping die of the present invention.
In addition, rotor fan mold for forming 4 in this form of implementation as shown in figure 17, the suction surface surface of rotor fan 1 forms by fixed mould 5, the pressure surface surface of rotor fan 1 forms by flexible mould 6, but also can be, the pressure surface surface of rotor fan 1 forms by fixed mould 5, and the suction surface surface of rotor fan 1 forms by flexible mould 6.
Below, other embodiments of the invention and comparative example are carried out specific description.
(embodiment 21)
The rotor fan 1 of the height h=140mm of diameter D=400mm shown in Figure 11, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, the surface of its blade forms with the dimension of 3 shown in the above-mentioned table 103 curved surface.Figure 12 and Figure 13 illustrate the stereogram of the rotor fan 1 of present embodiment 21.
(embodiment 22)
The surface of the blade of the rotor fan 1 of the height h=154mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 115, that is, with by table 104 specific 3 dimension curved surfaces form.
Figure C20051010701301231
(embodiment 23)
The rotor fan 1 of the height h=147mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 116, that is, with by table 105 specific 3 dimension curved surfaces form.
Figure C20051010701301241
Figure C20051010701301251
(embodiment 24)
The rotor fan 1 of the height h=133mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 117, that is, with by table 106 specific 3 dimension curved surfaces form.
Figure C20051010701301261
Figure C20051010701301271
(embodiment 25)
The rotor fan 1 of the height h=126mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 118, that is, with by table 107 specific 3 dimension curved surfaces form.
Figure C20051010701301281
Figure C20051010701301291
(embodiment 26)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 119, that is, with by table 108 specific 3 dimension curved surfaces form.
Figure C20051010701301301
Figure C20051010701301311
(embodiment 27)
The rotor fan 1 of the height h=126mm of diameter D=400mm, axial (z direction), angle of spread λ=108deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 120, that is, with by table 109 specific 3 dimension curved surfaces form.
Figure C20051010701301321
(embodiment 28)
The rotor fan 1 of the height h=140mm of diameter D=400mm, axial (z direction), angle of spread λ=90deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 121, that is, with by table 110 specific 3 dimension curved surfaces form.
Figure C20051010701301351
(embodiment 29)
The rotor fan 1 of the height h=140mm of diameter D=400mm, axial (z direction), angle of spread λ=132deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 122, that is, with by table 111 specific 3 dimension curved surfaces form.
Figure C20051010701301361
Figure C20051010701301371
(embodiment 30)
The rotor fan 1 of the height h=140mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 123, that is, with by table 112 specific 3 dimension curved surfaces form.
Figure C20051010701301381
Figure C20051010701301391
(embodiment 31)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 124, that is, with by table 113 specific 3 dimension curved surfaces form.
Figure C20051010701301401
Figure C20051010701301411
(embodiment 32)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 125, that is, with by table 114 specific 3 dimension curved surfaces form.
Figure C20051010701301431
(embodiment 33)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 126, that is, with by table 115 specific 3 dimension curved surfaces form.
Figure C20051010701301441
Figure C20051010701301451
(embodiment 34)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 127, that is, with by table 116 specific 3 dimension curved surfaces form.
Figure C20051010701301461
Figure C20051010701301471
(embodiment 35)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=90deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=4 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 128, that is, with by table 117 specific 3 dimension curved surfaces form.
Figure C20051010701301481
Figure C20051010701301491
(embodiment 36)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=72deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=5 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 129, that is, with by table 118 specific 3 dimension curved surfaces form.
Figure C20051010701301501
Figure C20051010701301511
(embodiment 37)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=108.5deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=5 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 130, that is, with by table 119 specific 3 dimension curved surfaces form.
Figure C20051010701301521
Figure C20051010701301531
(embodiment 38)
The rotor fan 1 of the height h=161mm of diameter D=460mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.326 (hub diameter v D=150mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 131, that is, with by table 120 specific 3 dimension curved surfaces form.
Figure C20051010701301541
Figure C20051010701301551
(embodiment 39)
The rotor fan 1 of the height h=168mm of diameter D=460mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.326 (hub diameter v D=150mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 132, that is, with by table 121 specific 3 dimension curved surfaces form.
Figure C20051010701301561
Figure C20051010701301571
(embodiment 40)
The rotor fan 1 of the height h=140mm of diameter D=460mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.326 (hub diameter v D=150mm) that the blade sheet is counted n=3 sheet, blade, with with table 102 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 133, that is, with by table 122 specific 3 dimension curved surfaces form.
Figure C20051010701301581
Below, describe in conjunction with Figure 14～Figure 16 with regard to comparative example of the present invention.Figure 14 is the plan view of the rotor fan of comparative example 4, and Figure 15 and Figure 16 are the stereograms of the rotor fan of comparative example 4.
(comparative example 4)
Diameter D=400mm shown in Figure 4, axially height h=140mm, the blade sheet of (z direction) the rotor fan 1 of counting n=3 sheet, hub ratio v=0.35 (the hub diameter v D=140mm) surface that forms its blade for by following table 123 specific 3 tie up curved surfaces.Among the figure 2 is hub portion.In addition, r, θ, z set similarly to Example 21.
Figure C20051010701301611
(comparative example 5)
Diameter D=316mm, axially height h=100mm, the blade sheet of (z direction) the rotor fan 1 of counting n=5 sheet, hub ratio v=0.253 (the hub diameter v D=80mm) surface that forms its blade for by following table 124 specific 3 tie up curved surfaces.In addition, r, θ, z set similarly to Example 21.
Figure C20051010701301631
(comparative example 6)
The rotor fan 1 that height h=168mm, the blade sheet of diameter D=460mm, axial (z direction) counted n=3 sheet, hub ratio v=0.35 (hub diameter v D=161mm) forms the surface of its blade by being formed by 3 specific dimension curved surfaces of following table 125.In addition, r, θ, z set similarly to Example 21.
Figure C20051010701301651
With aforesaid embodiment 21 to embodiment 40 and, comparative example 4 to the rotor fan of comparative example 6 is installed in the outdoor unit of air conditioner and to air quantity, power consumption, noise etc. and measures.
At first, for fan diameter be φ 400, embodiment 21 is to the fan of embodiment 33 and comparative example 4, uses the outdoor unit of refrigerating capacity as the 28kW level, drive with the DC motor.It the results are shown in following table 126.
Figure C20051010701301671
Secondly, for fan diameter be φ 316, embodiment 34 is to the fan of embodiment 37 and comparative example 5, uses the built in type outdoor unit, drive with the AC motor.It the results are shown in following table 127.
Figure C20051010701301691
Secondly, for fan diameter be φ 460, embodiment 38 is to the fan of embodiment 40 and comparative example 6, uses the large-scale outdoor unit of multi-mode, drive with the AC motor.It the results are shown in following table 128.
Figure C20051010701301711
By above-mentioned table 126 as can be known, embodiments of the invention 21 are compared with the comparative example 1 of the rotor fan of same diameter to rotor fan shown in the embodiment 33, and power consumption had reduced more than 40% when air quantity was identical, and in addition, noise can reduce by 4～7db.In addition, the common problem of slim vane do not occur and promptly peel off noise, come therefore to cause noise to increase.
In addition, embodiments of the invention 21 are compared with comparative example 4 to the rotor fan shown in the embodiment 33, performance do not reduce and weight saving about 25%, cost has also reduced.And, because weight saving 25%, also realized reducing of detent torque when gas fan starts, the cost of drive motor also can reduce.The common problem of slim vane, be that deformable blade is identical substantially with comparative example 4.
In addition, by above-mentioned table 127 as can be known, embodiments of the invention 34 are compared with the comparative example 5 of the rotor fan of same diameter to rotor fan shown in the embodiment 37, and power consumption had reduced 15～30% when air quantity was identical, and in addition, noise can reduce by 4～6db.In addition, the common problem of slim vane do not occur and promptly peel off noise, therefore do not cause noise to increase.
In addition, embodiments of the invention 34 are compared with comparative example 5 to the rotor fan shown in the embodiment 37, performance do not reduce and weight saving about 20%, cost has also reduced.And, because weight saving 20%, also realized reducing of detent torque when gas fan starts, the cost of drive motor also can reduce.The common problem of slim vane, be that deformable blade is identical substantially with comparative example 5.
In addition, by above-mentioned table 128 as can be known, embodiments of the invention 38 are compared with the comparative example 6 of the rotor fan of same diameter to rotor fan shown in the embodiment 40, and power consumption had reduced 42～47% when air quantity was identical, and in addition, noise can reduce by 4～6db.In addition, the common problem of slim vane do not occur and promptly peel off noise, therefore do not cause noise to increase.
In addition, embodiments of the invention 38 are compared with comparative example 6 to the rotor fan shown in the embodiment 40, performance do not reduce and weight saving about 20%, cost has also reduced.And, because weight saving 20%, also realized reducing of detent torque when gas fan starts, the cost of drive motor also can reduce.The common problem of slim vane, be that deformable blade is identical substantially with comparative example 6.
In addition, the embodiment 21 of above-mentioned table 126 is to embodiment 26, at same diameter D=400mm, under the situation of identical angle of spread λ=120deg, as its height h that highly can satisfy following formula 34, promptly the embodiment 21 of h=140 has superiority most aspect efficient and the noise.
c = λ = 360 / n = 2400 7 × h D . . . ( 134 )
In addition, among the embodiment 21 of above-mentioned table 126, embodiment 28 and the embodiment 29, mounted blade angle λ can satisfy the mounted blade angle of following formula 135 when same diameter D=400mm, equal height h=140mm, and promptly the embodiment 21 of λ=120 has superiority most aspect efficient and the noise.
c = λ = 360 / n = 2400 7 × h D . . . ( 135 )
Among the embodiment 25 and embodiment 27 of above-mentioned table 126, the mounted blade angle λ when same diameter D=400mm, equal height h=126mm compares with embodiment 25, and embodiment 27 more presents superiority.That is, in following formula 136, when the former and the latter were inequality, the latter presented superiority.
c = λ = 360 / n c = λ = 2400 7 × h D . . . ( 136 )
In addition, among the embodiment 21 and embodiment 30 of above-mentioned table 126, with regard to the hub ratio v during with regard to same diameter D=400mm, equal height h=140mm, identical mounted blade angle λ=120deg, because embodiment 30 carries out conversion with respect to embodiment 21 to satisfy following formula 137, therefore, aspect efficient and noise, embodiment 30 presents superiority similarly to Example 21.
a = 20 29 D ( 1 - v ) b = - 20 29 D ( 1 - v ) × 0.275 + vD 2 . . . ( 137 )
In addition, for the embodiment 21 of above-mentioned table 126, embodiment 36, embodiment 31 to embodiment 33, e during with regard to same diameter D=400mm, equal height h=112mm, identical mounted blade angle λ=120deg u, e d, f u, f dHow to determine to describe.
Embodiment 26 compares with embodiment 21, and h/D is little, i.e. the thin thickness of fin.Therefore, be applied to when fan rotates under the action of centrifugal force on the fin (blade), fin produces moderate finite deformation makes the height of fin reduce, thereby efficient difference noise is big.
For preventing the generation of this situation, as long as set e according to following transformation for mula 138 u, e d, f uAnd f dBetween relation, the thickness that increases fin gets final product, embodiment 31 presents superiority with respect to embodiment 26 to embodiment 33.
Figure C20051010701301741
Work as e u＜e d, f u＞f dThe time, because very big change takes place the fin mold shape, will cause deterioration of efficiency, noise to increase; And work as e u=e d, f u＜f dThe time, e u＞e d, f u＜f dThe time, e u＜e d, f u＜f dThe time, e u＜e d, f u=f dThe time, airfoil shape is untenable.
In addition, the embodiment 34 of above-mentioned table 127 is to embodiment 36, blade sheet number is the embodiment 34 of the value n=3 sheet of the most approaching following formula 139 when same diameter D=316mm, equal height h=100mm, mounted blade angle λ=360/n, has superiority most aspect efficient and the noise.
2400 7 × h D = 2400 7 × 100 316 = 108.5 . . . ( 139 )
In addition, when the embodiment 36 and the embodiment 37 of above-mentioned table 127 compared, compare with embodiment 36, embodiment 37 more presents superiority.This is the result that the mounted blade angle λ during to same diameter D=316mm, equal height h=100mm, identical blade sheet number=5 compares.That is, in following formula 140, when the former and the latter were inequality, the latter presented superiority.
c = λ = 360 / n c = λ = 2400 7 × h D . . . ( 140 )
In addition, the embodiment 38 of above-mentioned table 128 compares with embodiment 39, embodiment 40 to embodiment 40, and embodiment 38 presents superiority.This is the result that mounted blade angle λ during to same diameter D=460mm, identical blade sheet number=3 and height h compare.Promptly, when selecting mounted blade angle λ and height h, not only to select λ with the 1st formula (following formula) that can satisfy in the following formula 141, also select the blade sheet to count n, mounted blade angle λ and height h, thereby make it have more superiority with the 2nd formula (Chinese style) that can satisfy in the formula 141.That is, for rotor fan of the present invention, the 3rd formula (following formula) in the following formula 141 is very important when the decision design phiolosophy.
c = λ = 2400 7 × h D c = λ = 360 / n = 2400 7 × h D 360 / n = 2400 7 × h D . . . ( 141 )
Below, describe with regard to fluid feeder involved in the present invention.Fluid feeder 7 shown in Figure 180 possesses the gas fan 9 that is made of embodiment 21 rotor fan 1 and drive motor 8, by this gas fan 9 fluid is sent.
As the fluid feeder of this structure, air conditioner, air cleaning machine, humidifier, dehumidifier, fan, fan-type heater, cooling unit, air interchanger etc. are for example arranged, and the fluid feeder 7 of this form of implementation is the outdoor unit 10 of air conditioner.
Possess outdoor heat converter 11 in this outdoor unit 10, carry out heat exchange effectively by above-mentioned gas fan 9.At this moment, gas fan 9 is arranged in the outdoor unit 10 by motor angle steel 12, and the blow-off outlet 13 of outdoor unit 10 is horn mouth 14 as shown in figure 19.
In addition, also can be provided with in the fluid feeder 7 and have ring-type back-up ring 15 to be arranged on gas fan 9 around the rotor fan 1 as shown in figure 20.In this occasion,, can stir discharge water and discharge water is blown on the outdoor heat converter 11 to seek higher efficient as the air conditioners such as window formula that indoor set and outdoor unit are made of one.
The outdoor unit 10 of this form of implementation possesses embodiment 21 rotor fan 1, thereby is the quiet outdoor unit of low noise.In addition, because rotor fan 1 is the fan that fan efficiency is improved, thereby be to realize energy-conservation high efficiency outdoor unit.And, because the weight saving of rotor fan 1, so can also alleviate the weight of outdoor unit 10.In addition, can infer, also can access same result when adopting other embodiment's rotor fan.
Below, another rotor fan, rotor fan mold for forming and fluid feeder with regard to involved in the present invention describe in conjunction with Figure 21 to Figure 30.
Figure 21 illustrates the plan view of rotor fan 1 of the present invention.Rotor fan 1 of the present invention is for example to be made of one piece by the synthetic resin such as AS resin that include glass fibre.The diameter D=400mm of rotor fan 1, the axial height h=140mm of (z direction), the blade sheet is counted the n=3 sheet, the angle of spread λ of blade=120 degree (deg), hub ratio v=0.275 (hub diameter v D=110mm) is provided with 3 blades 3 that are wholely set radially around hub portion 2.
In addition, a key character of the present invention is, to be obtained the surface configuration of the blade 3 of rotor fan 1 as the basis by the basic shape that specific coordinate figure was determined.That is, each coordinate figure of basic shape is carried out conversion by set transformation for mula respectively on r, θ, z direction, and with the curve form that determined by the conversion gained coordinate figure surface configuration as the blade 3 of rotor fan 1.
Basic shape of the present invention, its typical shape are determined by coordinate figure shown in the aforementioned table 202.But, multiply by that set coefficient carries out the conformity conversion of this coordinate figure and the shape that coordinate figure determined that obtains also should be interpreted as it and basic shape equivalence of the present invention by coordinate figure shown in the aforementioned table 202.
At the running shaft with rotor fan 1 is the cylindrical-coordinate system of z axle when expressing, the coordinate (r on the suction surface surface of blade 3 1, θ 1, z 1u) and the coordinate (r on the pressure surface surface of blade 3 1, θ 1, z 1d) by with the 3 dimension coordinate values of dimensionless shown in the table 202 through following transformation for mula 213 carry out conversion and the coordinate figure that obtains specific curved surface, promptly by coordinate figure shown in the table 203 specific curved surface constitute.
This curved surface also can be by the coordinate figure of each coordinate ± coordinate figure in 5% scope specific curved surface.In addition, though can utilize the coordinate figure that obtains through the conformity conversion by coordinate figure shown in the aforementioned table 202 to obtain coordinate figure shown in the table 203, but in this occasion, only need make transformation for mula 213 have some distortion to meet the demands, thereby it should to be interpreted as be distortion in the impartial excursion of the present invention.
Figure C20051010701301771
Figure C20051010701301781
Among Figure 21, cylindrical-coordinate system r, θ illustrate with the single-point line.The z axle is not shown in Figure 21, the z axle in Figure 21 be pass rotor fan 1 hub portion 2 rotating center O and perpendicular to the line (i.e. the line that overlaps with the axis of rotation of rotor fan 1) of paper.
Among Figure 21, blade 3 for rotor fan 1, the scope of drawing on the r direction 60mm～190mm is the line of cutting apart at interval with 10mm, and the scope of drawing on the θ direction 0deg～125deg is the line of cutting apart at interval with 5deg, and the coordinate figure of the z at each intersection point place is shown in the table 203.Wherein, the last lattice in each row illustrate the value of the suction surface (suction side) of rotor fan, and following lattice illustrate the value of pressure surface (blowing out side).
The sheet of blade 3 is thick in the root place of blade 3 thickening.In addition, for weight reduction, the edge of blade 3 is done as thin as a wafer, and therefore, when the not smooth situation of resin flows occurring when moulding, also can compare with table 203 increases local thickness.In addition, the shape on blade 3 surfaces both can be level and smooth shape, also can be provided with groove or projection, be the concavo-convex of counter sink shape and so on.In addition, the trailing edge of blade 3 also can indentation.In each transformation for mula, d why: arbitrarily, and f u=f d: arbitrarily, be because no matter d and f u=f dElect what value as, all can make the identical cause of shape of rotor fan.
In addition, rotor fan 1 of the present invention, both can be one-body molded by ABS (acrylonitrile-butadiene-styrene) resin or polypropylene synthetic resin such as (PP), also the synthetic resin that can intensity be increased by containing mica etc. is one-body molded, but can not be integrated also.
Figure 27 illustrates and is used for forming example rotor fan 1 shown in Figure 21, rotor fan mold for forming 4.As shown in figure 27, mould 4 is to be used for mould with molding synthetic resin rotor fan 1, has fixed mould 5 and flexible mould 6.
And, roughly the same by the shape of the shape of two moulds 5,6 die cavitys that determined and rotor fan 1.Form the coordinate (r of that a part of die surface on blade 3 surfaces on the said fixing mould 5 1, θ 1, z 1u) and flexible mould 6 on form the coordinate (r of that a part of die surface on blade 3 surfaces 1, θ, z 1d), can carry out conversion by dimensionless 3 dimension coordinate values shown in following transformation for mula 214 his-and-hers watches 202 and obtain.
Figure C20051010701301801
That is, fixed mould 5 and flexible mould 6 have respectively by coordinate figure shown in the table 203 specific curvature portion.And in this occasion, each curved surface also can by each coordinate figure ± coordinate figure institute in 5% scope is specific.
Here, determined on the basis that the size of the above-mentioned curve form of mould also can the contraction to moulding the time takes in.In this occasion, shaping die 4 also can form like this, promptly, for can after contraction, form have curved surface by 3 dimension coordinate values shown in the above-mentioned table 203 ± the rotor fan 1 of the blade 3 of the specific 3 dimension curved surfaces of coordinate figure in 5% scope, factors such as the contraction in the time of can be with moulding, warpage, distortion are taken into account and above-mentioned coordinate data are revised; Include these contents in the shaping die of the present invention.
In addition, rotor fan mold for forming 4 in this form of implementation as shown in figure 27, the suction surface surface of rotor fan 1 forms by fixed mould 5, the pressure surface surface of rotor fan 1 forms by flexible mould 6, but also can be, the pressure surface surface of rotor fan 1 forms by fixed mould 5, and the suction surface surface of rotor fan 1 forms by flexible mould 6.
Below, other embodiments of the invention and comparative example are carried out specific description.
(embodiment 41)
The rotor fan 1 of the height h=140mm of diameter D=400mm shown in Figure 21, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, the surface of its blade forms with the dimension of 3 shown in the above-mentioned table 203 curved surface.Figure 22 and Figure 23 illustrate the stereogram of the rotor fan 1 of present embodiment 41.
(embodiment 42)
The surface of the blade of the rotor fan 1 of the height h=154mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 215, that is, with by table 204 specific 3 dimension curved surfaces form.
Figure C20051010701301821
(embodiment 43)
The rotor fan 1 of the height h=147mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 216, that is, with by table 205 specific 3 dimension curved surfaces form.
Figure C20051010701301831
(embodiment 44)
The rotor fan 1 of the height h=133mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 217, that is, with by table 206 specific 3 dimension curved surfaces form.
Figure C20051010701301851
Figure C20051010701301861
(embodiment 45)
The rotor fan 1 of the height h=126mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the wheel hub v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 218, that is, with by table 207 specific 3 dimension curved surfaces form.
Figure C20051010701301871
Figure C20051010701301881
(embodiment 46)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 219, that is, with by table 208 specific 3 dimension curved surfaces form.
Figure C20051010701301891
Figure C20051010701301901
(embodiment 47)
The rotor fan 1 of the height h=126mm of diameter D=400mm, axial (z direction), angle of spread λ=108deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 220, that is, with by table 209 specific 3 dimension curved surfaces form.
Figure C20051010701301911
Figure C20051010701301921
(embodiment 48)
The rotor fan 1 of the height h=140mm of diameter D=400mm, axial (z direction), angle of spread λ=90deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 221, that is, with by table 210 specific 3 dimension curved surfaces form.
Figure C20051010701301941
(embodiment 49)
The rotor fan 1 of the height h=140mm of diameter D=400mm, axial (z direction), angle of spread λ=132deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 222, that is, with by table 211 specific 3 dimension curved surfaces form.
Figure C20051010701301951
Figure C20051010701301961
(embodiment 50)
The rotor fan 1 of the height h=140mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.35 (hub diameter v D=140mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 223, that is, with by table 212 specific 3 dimension curved surfaces form.
Figure C20051010701301971
Figure C20051010701301981
(embodiment 51)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 224, that is, with by table 213 specific 3 dimension curved surfaces form.
Figure C20051010701301991
Figure C20051010701302001
(embodiment 52)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 225, that is, with by table 214 specific 3 dimension curved surfaces form.
Figure C20051010701302011
Figure C20051010701302021
(embodiment 53)
The rotor fan 1 of the height h=112mm of diameter D=400mm, axial (z direction), the angle of spread=120deg, the hub ratio v=0.275 (hub diameter v D=110mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 226, that is, with by table 215 specific 3 dimension curved surfaces form.
Figure C20051010701302031
Figure C20051010701302041
(embodiment 54)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 227, that is, with by table 216 specific 3 dimension curved surfaces form.
Figure C20051010701302051
Figure C20051010701302061
(embodiment 55)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=90deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=4 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 228, that is, with by table 217 specific 3 dimension curved surfaces form.
Figure C20051010701302071
Figure C20051010701302081
(embodiment 56)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=72deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=5 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 229, that is, with by table 218 specific 3 dimension curved surfaces form.
Figure C20051010701302101
(embodiment 57)
The rotor fan 1 of the height h=100mm of diameter D=316mm, axial (z direction), angle of spread λ=108.5deg, the hub ratio v=0.272 (hub diameter v D=86mm) that the blade sheet is counted n=5 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 230, that is, with by table 219 specific 3 dimension curved surfaces form.
Figure C20051010701302111
Figure C20051010701302121
(embodiment 58)
The rotor fan 1 of the height h=161mm of diameter D=460mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.326 (hub diameter v D=150mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 231, that is, with by table 220 specific 3 dimension curved surfaces form.
Figure C20051010701302131
Figure C20051010701302141
(embodiment 59)
The rotor fan 1 of the height h=168mm of diameter D=460mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.326 (hub diameter v D=150mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 232, that is, with by table 221 specific 3 dimension curved surfaces form.
Figure C20051010701302161
(embodiment 60)
The rotor fan 1 of the height h=140mm of diameter D=460mm, axial (z direction), angle of spread λ=120deg, the hub ratio v=0.326 (hub diameter v D=150mm) that the blade sheet is counted n=3 sheet, blade, with with table 202 the curved surface of specific dimensionless 3 dimension coordinates carry out the curved surface that conversion forms through following transformation for mula 233, that is, with by table 222 specific 3 dimension curved surfaces form.
Figure C20051010701302181
Below, describe in conjunction with Figure 24～Figure 26 with regard to comparative example of the present invention.Figure 24 is the plan view of the rotor fan of comparative example 7, and Figure 25 and Figure 26 are the stereograms of the rotor fan of comparative example 7.
(comparative example 7)
Diameter D=400mm shown in Figure 24, axially height h=140mm, the blade sheet of (z direction) the rotor fan 1 of counting n=3 sheet, hub ratio v=0.35 (the hub diameter v D=140mm) surface that forms its blade 3 for by following table 223 specific 3 tie up curved surfaces.Among the figure 2 is hub portion.In addition, r, θ, z similarly set with embodiment 41.
Figure C20051010701302201
(comparative example 8)
Diameter D=316mm, axially height h=100mm, the blade sheet of (z direction) the rotor fan 1 of counting n=5 sheet, hub ratio v=0.253 (the hub diameter v D=80mm) surface that forms its blade for by following table 224 specific 3 tie up curved surfaces.In addition, r, θ, z similarly set with embodiment 41.
Figure C20051010701302221
(comparative example 9)
Diameter D=460mm, axially height h=168mm, the blade sheet of (z direction) the rotor fan 1 of counting n=3 sheet, hub ratio v=0.35 (the hub diameter v D=161mm) surface that forms its blade for by following table 225 specific 3 tie up curved surfaces.In addition, r, θ, z similarly set with embodiment 41.
Figure C20051010701302241
With aforesaid embodiment 41 to embodiment 60 and, comparative example 7 to the rotor fan of comparative example 9 is installed in the outdoor unit of air conditioner and to air quantity, power consumption, noise etc. and measures.
At first, for fan diameter be φ 400, embodiment 41 is to the fan of embodiment 53 and comparative example 7, uses the outdoor unit of refrigerating capacity as the 28kW level, drive with the DC motor.It the results are shown in following table 226.
Figure C20051010701302261
Secondly, for fan diameter be φ 316, embodiment 54 is to the fan of embodiment 57 and comparative example 8, uses the built in type outdoor unit, drive with the AC motor.It the results are shown in following table 227.
Figure C20051010701302281
Secondly, for fan diameter be φ 460, embodiment 58 is to the fan of embodiment 60 and comparative example 9, uses the large-scale outdoor unit of multi-mode, drive with the AC motor.It the results are shown in following table 228.
Figure C20051010701302301
By above-mentioned table 226 as can be known, embodiments of the invention 41 are compared with the comparative example 7 of the rotor fan of same diameter to rotor fan shown in the embodiment 53, and power consumption had reduced more than 40% when air quantity was identical, and in addition, noise can reduce by 4.5～7.5db.In addition, the common problem of slim vane do not occur and promptly peel off noise, therefore do not cause noise to increase.
In addition, embodiments of the invention 41 are compared with comparative example 7 to the rotor fan shown in the embodiment 53, performance do not reduce and weight saving about 20%, cost has also reduced.And, because weight saving is about 20%, also realized reducing of detent torque when gas fan starts, the cost of drive motor also can reduce.The common problem of slim vane, be that deformable blade is compared significantly with comparative example 7 and reduced.
In addition, embodiments of the invention 41 to the rotor fan shown in the embodiment 53 is compared with comparative example 7, and rotation fatigue strength that is blade have improved 15% because of the tired rotating speed that centrifugal action damages.In addition, also be less than comparative example 1 cool time in the manufacture process.
In addition, by above-mentioned table 227 as can be known, embodiments of the invention 54 are compared with the comparative example 8 of the rotor fan of same diameter to rotor fan shown in the embodiment 57, and power consumption had reduced 15～30% when air quantity was identical, and in addition, noise can reduce by 4.5～6.5db.In addition, the common problem of slim vane do not occur and promptly peel off noise, therefore do not cause noise to increase.
In addition, embodiments of the invention 54 are compared with comparative example 8 to the rotor fan shown in the embodiment 57, performance do not reduce and weight saving about 15%, cost has also reduced.And, because weight saving is about 15%, also realized reducing of detent torque when gas fan starts, the cost of drive motor also can reduce.The common problem of slim vane, be that deformable blade is compared significantly with comparative example 8 and reduced.
In addition, embodiments of the invention 54 to the rotor fan shown in the embodiment 57 is compared with comparative example 7, and rotation fatigue strength that is blade have improved 13% because of the tired rotating speed that centrifugal action damages.In addition, also be less than comparative example 2 cool time in the manufacture process.
In addition, by above-mentioned table 228 as can be known, embodiments of the invention 58 are compared with the comparative example 9 of the rotor fan of same diameter to rotor fan shown in the embodiment 60, and power consumption had reduced 40～45% when air quantity was identical, and in addition, noise can reduce by 4.5～6.5db.In addition, the common problem of slim vane do not occur and promptly peel off noise, come therefore to cause noise to increase.
In addition, embodiments of the invention 58 are compared with comparative example 9 to the rotor fan shown in the embodiment 60, performance do not reduce and weight saving about 17%, cost has also reduced.And, because weight saving is about 17%, also realized reducing of detent torque when gas fan starts, the cost of drive motor also can reduce.The common problem of slim vane, be that deformable blade is compared significantly with comparative example 7 and reduced.
In addition, embodiments of the invention 58 to the rotor fan shown in the embodiment 60 is compared with comparative example 9, and rotation fatigue strength that is blade have improved 17% because of the tired rotating speed that centrifugal action damages.In addition, also be less than comparative example 9 cool time in the manufacture process.
In addition, the embodiment 41 of above-mentioned table 226 is to embodiment 46, at same diameter D=400mm, under the situation of identical angle of spread λ=120deg, as its height h that highly can satisfy following formula 234, promptly the embodiment 41 of h=140 has superiority most aspect efficient and the noise.
c = λ = 360 / n = 2400 7 × h D . . . ( 234 )
In addition, among the embodiment 41 of above-mentioned table 226, embodiment 48 and the embodiment 49, mounted blade angle λ when same diameter D=400mm, equal height h=140mm can satisfy the mounted blade angle of following formula 235, be the embodiment 41 of λ=120, have superiority most aspect efficient and the noise.
c = λ = 360 / n = 2400 7 × h D . . . ( 235 )
Among the embodiment 45 and embodiment 47 of above-mentioned table 226, the mounted blade angle λ when same diameter D=400mm, equal height h=126mm, compared with embodiment 45, embodiment 47 has more superiority.That is, in following formula 236, when the former and the latter were inequality, the latter presented superiority.
c = λ = 360 / n c = λ = 2400 7 × h D . . . ( 236 )
In addition, among the embodiment 41 and embodiment 50 of above-mentioned table 226, with regard to the hub ratio v during with regard to same diameter D=400mm, equal height h=140mm, identical mounted blade angle λ=120deg, because embodiment 50 carries out conversion with respect to embodiment 41 to satisfy following formula 237, therefore, aspect efficient and noise, embodiment 50 and embodiment 41 present superiority equally.
a = 20 29 D ( 1 - v ) b = - 20 29 D ( 1 - v ) × 0.275 + vD 2 . . . ( 237 )
In addition, for the embodiment 41 of above-mentioned table 226, embodiment 46, embodiment 51 to embodiment 53, e during with regard to same diameter D=400mm, equal height h=112mm, identical mounted blade angle λ=120deg u, e d, f u, f dHow to determine to describe.
Embodiment 46 compares with embodiment 41, and h/D is little, i.e. the thin thickness of fin.Therefore, be applied to when fan rotates under the action of centrifugal force on the fin (blade), fin produces moderate finite deformation makes the height of fin reduce, thereby efficient difference noise is big.
For preventing the generation of this situation, as long as set e according to following transformation for mula 238 u, e d, f uAnd f dBetween relation, the thickness that increases fin gets final product, embodiment 51 presents superiority with respect to embodiment 46 to embodiment 53.
Figure C20051010701302332
Work as e u＜e d, f u＞f dThe time, because very big change takes place the fin mold shape, will cause deterioration of efficiency, noise to increase; And work as e u=e d, f u＜f dThe time, e u＞e d, f u＜f dThe time, e u＜e d, f u＜f dThe time, e u＜e d, f u=f dThe time, airfoil shape is untenable.
In addition, the embodiment 54 of above-mentioned table 227 is to embodiment 56, the blade sheet is counted the embodiment 54 of n for the value n=3 sheet of the most approaching following formula 239 when same diameter D=316mm, equal height h=100mm, mounted blade angle λ=360/n, has superiority most aspect efficient and the noise.
2400 7 × h D = 2400 7 × 100 316 = 108.5 . . . ( 239 )
In addition, when the embodiment 56 and the embodiment 57 of above-mentioned table 227 compared, compare with embodiment 56, embodiment 57 more presents superiority.This is the result that the mounted blade angle λ during to same diameter D=316mm, equal height h=100mm, identical blade sheet number=5 compares.That is, in following formula 240, when the former and the latter were inequality, the latter presented superiority.
c = λ = 360 / n c = λ = 2400 7 × h D . . . ( 240 )
In addition, the embodiment 58 of above-mentioned table 228 compares with embodiment 59, embodiment 60 to embodiment 60, and embodiment 58 presents superiority.This is to same diameter D=460mm, mounted blade angle λ and the result that compares of height h when identical blade sheet is counted the n=3 sheet.Promptly, when selecting mounted blade angle λ and height h, not only to select λ with the 1st formula (following formula) that can satisfy in the following formula 241, also select the blade sheet to count n, mounted blade angle λ and height h, thereby make it have more outstanding superiority with the 2nd formula (Chinese style) that can satisfy in the formula 241.That is, for rotor fan of the present invention, the 3rd formula (following formula) in the following formula 241 is very important when the decision design phiolosophy.
c = λ = 2400 7 × h D c = λ = 360 / n = 2400 7 × h D 360 / n = 2400 7 × h D . . . ( 241 )
Below, describe with regard to fluid feeder involved in the present invention.Fluid feeder 7 shown in Figure 28 possesses the gas fan 9 that is made of embodiment 41 rotor fan 1 and drive motor 8, by this gas fan 9 fluid is sent.
As the fluid feeder of this structure, air conditioner, air cleaning machine, humidifier, dehumidifier, fan, fan-type heater, cooling unit, air interchanger etc. are for example arranged, and the fluid feeder 7 of this form of implementation is the outdoor unit 10 of air conditioner.
Possess outdoor heat converter 11 in this outdoor unit 10, carry out heat exchange effectively by above-mentioned gas fan 9.At this moment, gas fan 9 is arranged in the outdoor unit 10 by motor angle steel 12, and the blow-off outlet 13 of outdoor unit 10 is horn mouth 14 as shown in figure 29.
In addition, also can be provided with in the fluid feeder 7 and have ring-type back-up ring 15 to be arranged on gas fan 9 around the rotor fan 1 as shown in figure 30.In this occasion,, can stir discharge water and discharge water is blown on the outdoor heat converter 11 to seek higher efficient as the air conditioners such as window formula that indoor set and outdoor unit are made of one.
The outdoor unit 10 of this form of implementation possesses embodiment 41 rotor fan 1, thereby is the quiet outdoor unit of low noise.In addition, because rotor fan 1 is the fan that fan efficiency is improved, thereby be to realize energy-conservation high efficiency outdoor unit.And, because the weight saving of rotor fan 1, so can also alleviate the weight of outdoor unit 10.And the raising of the rotation fatigue strength of rotor fan 1 makes the rotating speed of rotor fan 1 be improved, and the ability of outdoor unit 10 is improved.Can infer, also can access same result when adopting other embodiment's rotor fan.
Rotor fan of the present invention, the surface configuration of its blade are that the basic shape that will for example be determined by 3 dimension coordinate values shown in table 1 and the table 2 obtains through suitably being out of shape.More particularly, be the curved surface that coordinate figure was determined that obtains in r, θ, the enterprising line translation of z direction by set transformation for mula with 3 dimension coordinate values shown in table 1 and the table 2, as the surface configuration of the blade of rotor fan.The surface configuration of the blade of rotor fan adopts such curve form, makes the rotor fan can reach the high efficiency shown in table 48～table 50, and with the diameter of rotor fan, highly irrelevant, but also can reduce noise.Therefore, according to rotor fan of the present invention, under the identical situation identical of power consumption, can access the air quantity bigger than prior art with noise.
The rotor fan mold for forming that a kind of local surfaces of the present invention is related, it forms that part surface of blade surface, be so that above-mentioned basic shape is enlarged or dwindles and the curved surface that obtains constitutes at least one direction of r, θ, z direction, therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (1) by the basic shape that 3 dimension coordinate values shown in table 1 and the table 2 are determined, also can be shown in table 48 (for example with reference to embodiment 1), improve the efficient of rotor fan, and with the diameter of rotor fan, highly irrelevant, and can reduce noise.Therefore, no matter select which type of diameter, highly, blade sheet number, the angle of spread, all can obtain the efficient height and the little rotor fan of noise.In addition, by satisfying h=e u〉=e dAnd f u〉=f dSuch condition, can solve that the D value is big, the h value hour thickness that might produce, fin as thin as a wafer thereby during the fan rotation fin under centrifugal action, produces moderate finite deformation and causes that fin height reduces, and so and causes problem such as the remarkable variation of performance.And, can not can because of centrifugal action cause degradation and, realize obtaining best effect aspect high efficiency and the low noise.That is, can under action of centrifugal force can not cause the situation of degradation, not realize high efficiency and low noise simultaneously, and can select best moldability.
The rotor fan mold for forming that another kind of local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in table 1 and the table 2 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (1), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (2) by the basic shape that 3 dimension coordinate values shown in table 1 and the table 2 are determined, also can be shown in table 48 (for example with reference to embodiment 2), improve the efficient of rotor fan, and with the diameter of rotor fan, highly irrelevant, and can reduce noise.In addition, not only can realize the high efficiency low noise, and the rotor fan that can to obtain blade blade sheet number not overlapped, that can reduce die cost very simply be n.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in table 1 and the table 2 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (2), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (3) by the basic shape that 3 dimension coordinate values shown in table 1 and the table 2 are determined, also can be shown in table 48 (for example with reference to embodiment 7), improve the efficient of rotor fan, and irrelevant, and can reduce noise with diameter, height and the blade sheet number of rotor fan.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in table 1 and the table 2 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (3), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (4) by the basic shape that 3 dimension coordinate values shown in table 1 and the table 2 are determined, also can be shown in table 48 (for example with reference to embodiment 10), improve the efficient of rotor fan, and with the diameter of rotor fan, highly, blade sheet number and fan diameter and hub ratio be irrelevant, and can reduce noise.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in table 1 and the table 2 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (4), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (5) by the basic shape that 3 dimension coordinate values shown in table 1 and the table 2 are determined, also can be shown in table 49 (for example with reference to embodiment 14), improve the efficient of rotor fan, and with the diameter of rotor fan, highly, blade sheet number and hub ratio be irrelevant, and can reduce noise.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in table 1 and the table 2 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (5), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (6) by the basic shape that 3 dimension coordinate values shown in table 1 and the table 2 are determined, also can be shown in table 49 (for example with reference to embodiment 17), improve the efficient of rotor fan, and with the diameter of rotor fan, highly, blade sheet number and hub ratio be irrelevant, and can reduce noise.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in table 1 and the table 2 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (6), therefore, can mold the rotor fan of the invention described above.
According to this feeder of stream of the present invention,, can become the low noise fluid feeder of efficient height, province's energy owing to possess above-mentioned any rotor fan.
Another kind of rotor fan of the present invention, the surface configuration of its blade are that the basic shape that will for example be determined by 3 dimension coordinate values shown in the table 101 obtains through suitably being out of shape.More particularly, be so that 3 dimension coordinate values shown in the table 101 are carried out the curved surface that coordinate figure was determined that conversion obtains respectively as the surface configuration of the blade of rotor fan by set transformation for mula on r, θ, z direction.The surface configuration of the blade of rotor fan adopts such curve form, makes the rotor fan can reach the high efficiency shown in table 126～table 128, and with the diameter of rotor fan, highly irrelevant, but also can reduce noise.And, can alleviate the weight of rotor fan, reduce cost.Therefore, according to rotor fan of the present invention, under the identical situation identical of power consumption, can access the air quantity bigger, but also can weight reduction reduce cost than prior art with noise.
Rotor fan mold for forming of the present invention, it forms that part surface of blade surface, be above-mentioned basic shape is enlarged or dwindles and the curved surface that obtains constitutes at least one direction of r, θ, z direction, therefore, can mold the rotor fan of the invention described above.
The occasion that the basic shape that 3 dimension coordinate values shown in the table 101 are determined is carried out conversion by transformation for mula (101), also can be shown in table 126 (for example with reference to example example 21), improve the efficient of rotor fan, and with the diameter of rotor fan, highly irrelevant, and can reduce noise.And, can weight reduction reduce cost.Therefore, no matter select which type of diameter, highly, blade sheet number, the angle of spread, all can obtain in light weight and efficient is high and rotor fan that noise is little with low cost.In addition, by satisfying h=e u〉=e dAnd f u〉=f dSuch condition, can solve that the D value is big, the h value hour thickness that might produce, fin as thin as a wafer thereby during the fan rotation fin under centrifugal action, produces moderate finite deformation and causes that fin height reduces, and so and causes problem such as the remarkable variation of performance.And, can not can because of centrifugal action cause degradation and, realize that high efficiency, low noise and cost in light weight obtain best effect aspect low.That is, can under action of centrifugal force can not cause the situation of degradation, not realize that simultaneously high efficiency and low noise and cost in light weight are low, and can select best moldability.
The rotor fan mold for forming that another kind of local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 101 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (101), therefore, can mold the rotor fan of the invention described above.
In the time of will carrying out conversion by transformation for mula (102) by the basic shape that 3 dimension coordinate values shown in the table 101 are determined, also can be shown in table 126 (for example with reference to embodiment 2), improve the efficient of rotor fan, and irrelevant with diameter, height and the blade sheet number of rotor fan, and can reduce noise.In addition, not only can realize high efficiency, low noise, in light weight, cost is low, and the rotor fan that can to obtain blade blade sheet number not overlapped, that can reduce die cost very simply be n.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 101 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (102), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (103) by the basic shape that 3 dimension coordinate values shown in the table 101 are determined, also can be shown in table 126 (for example with reference to embodiment 27), the efficient and the cost in light weight that improve the rotor fan are low, and irrelevant, and can reduce noise with diameter, height and the blade sheet number of rotor fan.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 101 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (103), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (104) by the basic shape that 3 dimension coordinate values shown in the table 101 are determined, also can be shown in table 126 (for example with reference to embodiment 30), the efficient and the cost in light weight that improve the rotor fan are low, and with the diameter of rotor fan, highly, blade sheet number and fan diameter and hub ratio be irrelevant, and can reduce noise.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 101 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (104), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (105) by the basic shape that 3 dimension coordinate values shown in the table 101 are determined, also can be shown in table 127 (for example with reference to embodiment 34), the efficient and the cost in light weight that improve the rotor fan are low, and with the diameter of rotor fan, highly, blade sheet number and hub ratio be irrelevant, and can reduce noise.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 101 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (105), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (106) by the basic shape that 3 dimension coordinate values shown in the table 101 are determined, also can be shown in table 127 (for example with reference to embodiment 37), the efficient and the cost in light weight that improve the rotor fan are low, and with the diameter of rotor fan, highly, blade sheet number and hub ratio be irrelevant, and can reduce noise.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 101 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (106), therefore, can mold the rotor fan of the invention described above.
Fluid feeder involved in the present invention owing to possess the gas fan with the said rotor fan of above-mentioned a certain embodiment, therefore, is the efficient height, can realizes energy-conservation low noise and lightweight device.
Another rotor fan of the present invention, the surface configuration of its blade are that the basic shape that will for example be determined by 3 dimension coordinate values shown in the table 201 obtains through suitably being out of shape.More particularly, be so that 3 dimension coordinate values shown in the table 201 are carried out the curved surface that coordinate figure was determined that conversion obtains respectively as the surface configuration of the blade of rotor fan by set transformation for mula on r, θ, z direction.The surface configuration of the blade of rotor fan adopts such curve form, makes the rotor fan can reach the high efficiency shown in table 226～table 228, and with the diameter of rotor fan, highly irrelevant, but also can reduce noise.And, can alleviate the weight of rotor fan, reduce cost.Therefore, according to rotor fan of the present invention, under the identical situation identical of power consumption, can access the air quantity bigger, but also can weight reduction reduce cost than prior art with noise.And, cause to have superiority aspect the tired intensity of distortion and anti-rotation resisting centrifugal force, therefore the local thickening of thickness that will root of blade.
Rotor fan mold for forming of the present invention, it forms that part surface of blade surface, be above-mentioned basic shape is enlarged or dwindles and the curved surface that obtains constitutes at least one direction of r, θ, z direction, therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (201) by the basic shape that 3 dimension coordinate values shown in the table 201 are determined, also can be shown in table 226 (for example with reference to embodiment 1), improve the efficient of rotor fan, and have nothing to do, and can reduce noise with the diameter of rotor fan, height etc.And, can weight reduction reduce cost.In addition, can not improve the intensity of rotor fan to the local thickening of the thickness of root of blade.Therefore, no matter select which type of diameter, highly, blade sheet number, the angle of spread, all can obtain in light weight and intensity is big and efficient is high and rotor fan that noise is little with low cost.In addition, by satisfying h=e u〉=e dAnd f u〉=f dSuch condition, can solve that the D value is big, the h value hour thickness that might produce, fin become as thin as a wafer thereby during the fan rotation fin under centrifugal action, produces moderate finite deformation and causes that fin height reduces, and so and causes problem such as the remarkable variation of performance.And, can not can because of centrifugal action cause degradation and, realize high efficiency, low noise, cost in light weight is low and improve and obtain best effect aspect the intensity.That is, can realize simultaneously that under action of centrifugal force can not cause the situation of degradation high efficiency and low noise and cost in light weight are low and improve intensity, and can select best moldability.
The rotor fan mold for forming that another kind of local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 201 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (201), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (202) by the basic shape that 3 dimension coordinate values shown in the table 201 are determined, also can be shown in table 226 (for example with reference to embodiment 42), improve the efficient of rotor fan, and have nothing to do, and can reduce noise with the diameter of rotor fan, height etc.In addition, not only can realize high efficiency, low noise, in light weight, cost low and improve intensity, and the rotor fan that can to obtain blade blade sheet number not overlapped, that can reduce die cost very simply be n.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 201 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (202), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (203) by the basic shape that 3 dimension coordinate values shown in the table 201 are determined, also can be shown in table 226 (for example with reference to embodiment 47), improve the low and raising intensity of efficient, realization cost in light weight of rotor fan, and irrelevant, and can reduce noise with diameter, height and the blade sheet number of rotor fan.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 201 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (203), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (204) by the basic shape that 3 dimension coordinate values shown in the table 201 are determined, also can be shown in table 226 (for example with reference to embodiment 50), improve the low and raising intensity of efficient, realization cost in light weight of rotor fan, and with the diameter of rotor fan, highly, blade sheet number and fan diameter and hub ratio be irrelevant, and can reduce noise.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 201 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (204), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (205) by the basic shape that 3 dimension coordinate values shown in the table 201 are determined, also can be shown in table 227 (for example with reference to embodiment 54), improve the low and raising intensity of efficient, realization cost in light weight of rotor fan, and with the diameter of rotor fan, highly, blade sheet number and hub ratio be irrelevant, and can reduce noise.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 201 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (205), therefore, can mold the rotor fan of the invention described above.
The occasion that to carry out conversion by transformation for mula (206) by the basic shape that 3 dimension coordinate values shown in the table 201 are determined, also can be shown in table 227 (for example with reference to embodiment 57), improve the low and raising intensity of efficient, realization cost in light weight of rotor fan, and with the diameter of rotor fan, highly, blade sheet number and hub ratio be irrelevant, and can reduce noise.
The rotor fan mold for forming that another local surfaces of the present invention is related, it forms that part surface of blade surface, be so that 3 dimension coordinate values shown in the table 201 are carried out conversion and the curved surface that coordinate figure was determined that obtains constitutes through transformation for mula (206), therefore, can mold the rotor fan of the invention described above.
Fluid feeder involved in the present invention owing to possess the gas fan with the said rotor fan of above-mentioned a certain embodiment, therefore, is the efficient height, can realize device energy-conservation, that the noise low weight light and intensity is improved.
The possibility of utilizing on the industry
The present invention can be applicable to rotor fan and rotor fan mold for forming and fluid feeder.

Claims (15)

1. a rotor fan is characterized in that,
When the running shaft with the rotor fan is the coordinate of the cylindrical-coordinate system of z axle when being made as (r, θ, z),
With the curve form that determined by the r coordinate figure shown in following table 1 and the table 2, θ coordinate figure and z coordinate figure basic shape as the blade surface of said rotor fan,
Table 1
Hub ratio v=0.35
Table 2
r θ z 0.383 0.641 0.453 0.448 0.466 0.880 0.487 0.490 0.569 0.724 0.577 0.571 0.697 0.814 0.721 0.714 0.859 0.984 0.923 0.916 0.824 1.034 0.984 0.978 0.972 0.981 0.998 0.991 0.993 0.910 0.985 0.977 1.000 0.838 0.953 0.946 1.000 0.757 0.900 0.883
r θ z 1.000 0.678 0.829 0.823 1.000 0.539 0.680 0.874 1.000 0.403 0.515 0.509 1.000 0.334 0.415 0.411 1.000 0.280 0.279 0.276 1.000 0.200 0.157 0.154 0.972 0.181 0.092 0.080 0.946 0.170 0.077 0.075 0.877 0.147 0.051 0.049 0.847 0.136 0.044 0.042
r θ z 0.808 0.125 0.038 0.037 0.762 0.110 0.033 0.031 0.728 0.098 0.023 0.028 0.704 0.090 0.028 0.024 0.680 0.079 0.023 0.022 0.641 0.062 0.015 0.013 0.584 0.034 0.006 0.004 0.521 0.014 0.027 0.020
So that said basic shape is enlarged or dwindles and the curved surface that obtains constitutes the surface of the blade of said rotor fan at least one direction of r, θ, z direction.
2. one kind is used for the mould of moulding rotor fan, it is characterized in that,
Form that part surface of said rotor fan blade surface on this mould, by the said basic shape of claim 1 is enlarged or dwindles and the curved surface that obtains constitutes at least one direction of r, θ and z direction.
3. as the said rotor fan of claim 1, it is characterized in that,
At the diameter of establishing said rotor fan is that the height of D, said z direction is the angle of spread of h, said blade when being λ,
Determine r, θ, the z coordinate (r on the surface, suction side of said blade 1, θ 1, z 1u) and the decision blade the r that blows out side surface, θ, z coordinate (r 1, θ 1, z 1d) be to utilize 3 dimension coordinate values shown in said table 1 and the table 2 to obtain from following transformation for mula (1),
Figure C2005101070130005C1
The surface of the blade of said rotor fan is with by said (r 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
4. one kind is used for the mould of moulding rotor fan, it is characterized in that,
Form the said (r of that part surface to obtain of said rotor fan blade surface on this mould by the said transformation for mula of claim 3 (1) 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
5. as the said rotor fan of claim 1, it is characterized in that,
When the diameter of establishing said rotor fan be the height of D, said z direction be h, when blade sheet number is n,
Determine r, θ, the z coordinate (r on the surface, suction side of said blade 1, θ 1, z 1u) and the r that blows out side surface, the θ, the z coordinate (r that determine said blade 1, θ 1, z 1d) be to utilize 3 dimension coordinate values shown in said table 1 and the table 2 to obtain from following transformation for mula (2),
Figure C2005101070130006C1
The surface of the blade of said rotor fan is with by said (r 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
6. one kind is used for the mould of moulding rotor fan, it is characterized in that,
Form the said (r of that part surface to obtain of said rotor fan blade surface on this mould by the said transformation for mula of claim 5 (2) 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
7. as the said rotor fan of claim 1, it is characterized in that,
When the diameter of establishing said rotor fan is the height of D, said z direction when being h, determine r, θ, the z coordinate (r on the surface, suction side of said blade 1, θ 1, z 1u) and the r that blows out side surface, the θ, the z coordinate (r that determine said blade 1, θ 1, z 1d) be to utilize 3 dimension coordinate values shown in said table 1 and the table 2 to obtain from following transformation for mula (3),
Figure C2005101070130007C1
The surface of the blade of said rotor fan is with by said (r 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
8. one kind is used for the mould of moulding rotor fan, it is characterized in that,
Form the said (r of that part surface to obtain of said rotor fan blade surface on this mould by the said transformation for mula of claim 7 (3) 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
9. as the said rotor fan of claim 1, it is characterized in that,
Said rotor fan has hub portion,
When the diameter of establishing said rotor fan is that the hub ratio of the diameter ratio of the diameter of D, said rotor fan and said hub portion is that the height of v, said z direction is the angle of spread of h, said blade when being λ,
Determine r, θ, the z coordinate (r on the surface, suction side of said blade 1, θ 1, z 1u) and the r that blows out side surface, the θ, the z coordinate (r that determine said blade 1, θ 1, z 1d) be to utilize 3 dimension coordinate values shown in said table 1 and the table 2 to obtain from following transformation for mula (4),
Figure C2005101070130008C1
The surface of the blade of said rotor fan is with by said (r 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
10. one kind is used for the mould of moulding rotor fan, it is characterized in that,
Form the said (r of that part surface to obtain of said rotor fan blade surface on this mould by the said transformation for mula of claim 9 (4) 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
11. as the said rotor fan of claim 1, it is characterized in that,
Said rotor fan has hub portion,
When the diameter of establishing said rotor fan be the hub ratio of the diameter ratio of the diameter of D, said rotor fan and said hub portion be the height of v, said z direction be h, when said blade sheet number is n,
Determine r, θ, the z coordinate (r on the surface, suction side of said blade 1, θ 1, z 1u) and the r that blows out side surface, the θ, the z coordinate (r that determine said blade 1, θ 1, z 1d) be to utilize 3 dimension coordinate values shown in said table 1 and the table 2 to obtain from following transformation for mula (5),
Figure C2005101070130009C1
The surface of the blade of said rotor fan is with by said (r 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
12. a mould that is used for moulding rotor fan is characterized in that,
Form the said (r of that part surface to obtain of said rotor fan blade surface on this mould by the said transformation for mula of claim 11 (5) 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
13. as the said rotor fan of claim 1, it is characterized in that,
Said rotor fan has hub portion,
When the diameter of establishing said rotor fan is that the hub ratio of the diameter ratio of the diameter of D, said rotor fan and said hub portion is the height of v, said z direction when being h,
Determine r, θ, the z coordinate (r on the surface, suction side of said blade 1, θ 1, z 1u) and the r that blows out side surface, the θ, the z coordinate (r that determine said blade 1, θ 1, z 1d) be to utilize 3 dimension coordinate values shown in said table 1 and the table 2 to obtain from following transformation for mula (6),
Figure C2005101070130010C1
The surface of the blade of said rotor fan is with by said (r 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
14. a mould that is used for moulding rotor fan is characterized in that,
Form the said (r of that part surface to obtain of said rotor fan blade surface on this mould by the said transformation for mula of claim 13 (6) 1, θ 1, z 1u) and said (r 1, θ 1, z 1d) curved surface that determined constitutes.
15. fluid feeder, it is characterized in that possessing and have claim 1, the said rotor fan of some claims in claim 3, claim 5, claim 7, claim 9, claim 11 and the claim 13 and the gas fan that drives the drive motor of this rotor fan.
CNB200510107013XA 2000-07-04 2001-07-03 Propeller fan, propeller molding mold, and fluid feeding device Expired - Lifetime CN100381707C (en)

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JP2000202717A JP3673148B2 (en) 2000-07-04 2000-07-04 Propeller fan, mold for propeller fan and fluid feeder
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JP256867/00 2000-08-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11965522B2 (en) 2015-12-11 2024-04-23 Delta Electronics, Inc. Impeller

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS6165098A (en) * 1984-09-06 1986-04-03 Mitsubishi Electric Corp Axial fan
JPH0968200A (en) * 1995-08-29 1997-03-11 Matsushita Electric Works Ltd Propeller fan
JPH10159795A (en) * 1996-11-26 1998-06-16 Matsushita Electric Works Ltd Propeller fan and die for molding same
JPH10159793A (en) * 1996-11-26 1998-06-16 Matsushita Electric Works Ltd Propeller fan and die for molding same
JPH10159794A (en) * 1996-11-26 1998-06-16 Matsushita Electric Works Ltd Propeller fan and die for molding same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6165098A (en) * 1984-09-06 1986-04-03 Mitsubishi Electric Corp Axial fan
JPH0968200A (en) * 1995-08-29 1997-03-11 Matsushita Electric Works Ltd Propeller fan
JPH10159795A (en) * 1996-11-26 1998-06-16 Matsushita Electric Works Ltd Propeller fan and die for molding same
JPH10159793A (en) * 1996-11-26 1998-06-16 Matsushita Electric Works Ltd Propeller fan and die for molding same
JPH10159794A (en) * 1996-11-26 1998-06-16 Matsushita Electric Works Ltd Propeller fan and die for molding same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11965522B2 (en) 2015-12-11 2024-04-23 Delta Electronics, Inc. Impeller

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