CN207879686U - A kind of fan for air conditioner on vehicle impeller mechanism - Google Patents
A kind of fan for air conditioner on vehicle impeller mechanism Download PDFInfo
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- CN207879686U CN207879686U CN201721898980.7U CN201721898980U CN207879686U CN 207879686 U CN207879686 U CN 207879686U CN 201721898980 U CN201721898980 U CN 201721898980U CN 207879686 U CN207879686 U CN 207879686U
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Abstract
The utility model discloses a kind of fan for air conditioner on vehicle impeller mechanisms, the impeller and be set to the motor wheel hub that the other end is connected with blade that blade and shroud including arc form, the outer end of blade surrounds an outer circle, and the inner end of blade surrounds an inner circle, it is characterised in that：The top rake of impeller is 7 8.5 °, inclination angle is the angle of the diameter and diameter of the impeller center of circle to blade inner end in the conplane impeller center of circle to blade outer end portion on same blade, flow inlet angle is 60 80 °, flow inlet angle is the angle of the tangent line and the tangent line of its own camber line at the blade inner end in the inner circle at blade inner end, efflux angles is 20 40 °, efflux angles is the angle of the tangent line and the tangent line of its own camber line at the blade outer end portion in the outer circle at blade outer end portion, the utility model is reasonable for structure, air quantity can be made to increase, improved efficiency, and reduce noise.
Description
Technical field
The utility model is related to draught fan impeller technical fields, and in particular to a kind of fan for air conditioner on vehicle impeller mechanism.
Background technology
With popularizing for automobile, people are also higher and higher for comfort level requirement in the car, and air conditioning for automobiles has become vapour
One of vehicle necessary devices, in air conditioning for automobiles, air blower provides the power source of air flowing, and air quantity affects the entirety of air-conditioning
Performance, the noise of air conditioning for automobiles is greatly mostly from air blower, and the noise level of air blower is particularly important to comfort, air quantity and noise
As the important indicator for weighing air blower, the impeller of air blower has decisive role to air quantity, noise, efficiency, when air blast electromechanics
When machine rotates, impeller rotates therewith, and impeller generates centrifugal force and throws away air from impeller when rotated, the collect air thrown away
In spiral case, since speed is slow, pressure is high, air is just discharged from centrifugal blower exit, flow ipe, the air quilt in impeller
After discharge, negative pressure is formd, the air outside air inlet is pressed into impeller again under atmospheric pressure effect, and therefore, impeller constantly revolves
Turn, air also just under the action of centrifugal blower, constantly flows, due to blade short-wide, and curvature is larger, gas in the duct
It is detached seriously in the roads Liu Ye, therefore less efficient, and existing draught fan impeller can not take into account the requirement of air quantity and noise.
Invention content
The technical problem to be solved by the present invention is to provide a kind of reasonable for structure, air quantity under same rotating speed, effect are improved
Rate and the fan for air conditioner on vehicle impeller mechanism for reducing noise.
The task of the utility model is done in such a way that a kind of fan for air conditioner on vehicle impeller mechanism, includes the leaf of arc
The impeller and be set to the motor wheel hub that the other end is connected with blade that piece and shroud form, the outer end of blade surrounds one
The inner end of outer circle, blade surrounds an inner circle, it is characterised in that：The top rake of impeller is 7-8.5 °, and inclination angle is same leaf
The angle of the diameter and diameter of the impeller center of circle to blade inner end in the conplane impeller center of circle of on piece to blade outer end portion, into
Air horn is 60-80 °, and flow inlet angle is that the tangent line in the inner circle at blade inner end is cut with its own camber line at the blade inner end
The angle of line, efflux angles are 20-40 °, efflux angles be at tangent line and the blade outer end portion in the outer circle at blade outer end portion its
The angle of the tangent line of itself camber line.
Preferably, the blade tip of impeller air inlet is provided with axial chamfer, axial chamfer is the leaf on front view
Piece end projects it and is formed by the angle for tilting lines and vertical direction, the length of the horizontal direction of axial chamfer on side view
Degree and the ratio of shroud height are 0.8-0.95.
Preferably, the end both sides of blade inner circle are respectively arranged with chamfering, and the radius of one of chamfering is 0.1mm-
0.5mm.The radius of another chamfering is 0.2mm-0.8mm.
Preferably, the height of shroud and the height of impeller ratio are 0.1-0.12,
Preferably, the width of blade of 0.25-0.35 times smaller than the outside diameter of impeller of motor wheel hub diameter.Air quantity is set to increase
Add.
Preferably, motor wheel hub is bowl-type, and the junction of blade and motor wheel hub is provided with arc angling.
The utility model is reasonable for structure, air quantity can be made to increase, improved efficiency, and reduces noise.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the front view of the utility model；
Fig. 3 is the side view of the utility model.
Drawing explanation：1, blade, 2, shroud, 3, motor wheel hub, 4, outer circle, 5, inner circle.
Specific implementation mode
It is described in detail the technical solution of the utility model in conjunction with attached drawing, a kind of fan for air conditioner on vehicle impeller mechanism, including
Arc blade 1 and shroud 2 composition impeller and be set to the motor wheel hub 3 that the other end is connected with blade, blade outside
End surrounds an outer circle 4, and the inner end of blade surrounds an inner circle 5, and the top rake α of impeller is 7-8.5 °, and inclined angle alpha is same
The folder of the diameter in the conplane impeller center of circle to blade outer end portion and diameter of the impeller center of circle to blade inner end on one blade
Angle, flow inlet angle β are 60-80 °, and flow inlet angle β is its own at tangent line and the blade inner end in the inner circle at blade inner end
The angle of the tangent line of camber line, efflux angles γ are 20-40 °, and efflux angles γ is tangent line and the leaf in the outer circle at blade outer end portion
The angle of the tangent line of its own camber line at piece outer end, by the change of the parameter to inclined angle alpha, flow inlet angle β, efflux angles γ,
Fan performance is set to be optimized, air-flow flows more smooth, interlobate vortex reduction, to make air blower wind between impeller blade
Amount improves, and lower noise, static pressure efficiency is promoted, it is preferred that top rake α is 7.7 °, flow inlet angle β is 66 °, and efflux angles γ is
22 ° or top rake α are 8.0 °, and flow inlet angle β is 75 °, when efflux angles γ is 36 ° of combination, fan performance is made to reach largest optimization.
The blade tip of impeller air inlet is provided with axial chamfer θ, axial chamfer θ is the blade tip on front view
Project its be formed by side view tilt lines and vertical direction angle, the length g of the horizontal direction of axial chamfer θ with
The ratio of shroud height b is 0.8-0.95, can effectively reduce impact of the air-flow to blade, reduces noise, it is preferred that ratio is
The level of noise that can be reduced when 0.85 or 0.91 is maximum, and the end both sides of blade inner circle are respectively arranged with chamfering, one of them falls
The radius of angle h is 0.1mm-0.5mm, the radius of another chamfering i is 0.2mm-0.8mm can be reduced by the chamfering of setting
Air urges the impact of impeller, reduces noise, the height b of shroud and the height c ratios of impeller are 0.1-0.12, ensure that impeller has enough
Intensity, the width of blade f that 0.25-0.35 times smaller than the outside diameter e of impeller of motor wheel hub diameter d, the width f of blade is outer
The difference of radius of circle and inner circle radius reduces blocking of the motor wheel hub to impeller air-flow, increases blade net inflow area, make air quantity
Increase, motor wheel hub is bowl-type, and the junction of blade and motor wheel hub is provided with arc angling, avoids stress concentration.
It after the draught fan impeller mechanism, is tested in the case where blowing surface model, air quantity promotes 10%, the effect of blowing machine static pressure
Rate promotes 15%, while effectively reducing noise.
The basic principle of the utility model, main feature and advantage has been shown and described above, it is new not departing from this practicality
Under the premise of type spirit and scope, the utility model also has various changes and modifications, these changes and improvements both fall within requirement and protect
The scope of the utility model of shield.
Claims (6)
1. a kind of fan for air conditioner on vehicle impeller mechanism, including the impeller of the blade of arc and shroud composition and it is set to another
The motor wheel hub being connected with blade, the outer end of blade is held to surround an outer circle, the inner end of blade surrounds an inner circle,
It is characterized in that：The top rake of impeller is 7-8.5 °, and inclination angle is the conplane impeller center of circle on same blade to blade outer end
The angle of the diameter in portion and the impeller center of circle to the diameter of blade inner end, flow inlet angle are 60-80 °, and flow inlet angle is blade inner end
The angle of tangent line and the tangent line of its own camber line at the blade inner end in the inner circle at place, efflux angles are 20-40 °, efflux angles
For the angle of tangent line and the tangent line of its own camber line at the blade outer end portion in the outer circle at blade outer end portion.
2. a kind of fan for air conditioner on vehicle impeller mechanism according to claim 1, it is characterised in that：In impeller air inlet
Blade tip be provided with axial chamfer, axial chamfer is that the blade tip on front view projects it and is formed by side view
The angle of lines and vertical direction is tilted, the length of the horizontal direction of axial chamfer is 0.8-0.95 with the ratio of shroud height.
3. a kind of fan for air conditioner on vehicle impeller mechanism according to claim 1, it is characterised in that：The end of blade inner circle
Both sides are respectively arranged with chamfering, and the radius of one of chamfering is 0.1mm-0.5mm, and the radius of another chamfering is 0.2mm-
0.8mm。
4. a kind of fan for air conditioner on vehicle impeller mechanism according to claim 1, it is characterised in that：The height and leaf of shroud
The height ratio of wheel is 0.1-0.12.
5. a kind of fan for air conditioner on vehicle impeller mechanism according to claim 1, it is characterised in that：Motor wheel hub diameter ratio
0.25-0.35 times smaller than the outside diameter of impeller of width of blade, makes air quantity increase.
6. a kind of fan for air conditioner on vehicle impeller mechanism according to claim 1, it is characterised in that：Motor wheel hub is bowl
The junction of shape, blade and motor wheel hub is provided with arc angling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721898980.7U CN207879686U (en) | 2017-12-29 | 2017-12-29 | A kind of fan for air conditioner on vehicle impeller mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721898980.7U CN207879686U (en) | 2017-12-29 | 2017-12-29 | A kind of fan for air conditioner on vehicle impeller mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207879686U true CN207879686U (en) | 2018-09-18 |
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ID=63504936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721898980.7U Active CN207879686U (en) | 2017-12-29 | 2017-12-29 | A kind of fan for air conditioner on vehicle impeller mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207879686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975493A (en) * | 2017-12-29 | 2018-05-01 | 豫新汽车空调股份有限公司 | A kind of fan for air conditioner on vehicle impeller mechanism |
-
2017
- 2017-12-29 CN CN201721898980.7U patent/CN207879686U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975493A (en) * | 2017-12-29 | 2018-05-01 | 豫新汽车空调股份有限公司 | A kind of fan for air conditioner on vehicle impeller mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 168 Jianzhong Road, Xinxiang City, Henan Province, 453000 Patentee after: Yuxin Automotive Thermal Management Technology Co., Ltd. Address before: 453000 No. 168 Jianzhong Road, Xinxiang City, Henan Province Patentee before: Yuxin Automotive Air Conduitioner Co.,Ltd. |