CN105587686A - Impeller of centrifugal fan - Google Patents
Impeller of centrifugal fan Download PDFInfo
- Publication number
- CN105587686A CN105587686A CN201610070937.5A CN201610070937A CN105587686A CN 105587686 A CN105587686 A CN 105587686A CN 201610070937 A CN201610070937 A CN 201610070937A CN 105587686 A CN105587686 A CN 105587686A
- Authority
- CN
- China
- Prior art keywords
- impeller
- end cap
- centrifugal blower
- connecting portion
- blower according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
Abstract
The invention provides an impeller of a centrifugal fan, and belongs to the technical field of machinery, and the impeller solves the problem of high manufacturing difficulty in the prior art. The impeller of the centrifugal fan comprises an impeller body and an end cover, wherein the impeller body comprises a connecting base and a plurality of blades; the blades and the connecting base are of an integrated structure; the impeller body and the end cover are of an split type structure; the inner side edges of the blades are connected to the connecting base; the outer side edges of the bases are provided with a connecting part I; the end cover is in the shape of a circular ring, and is provided with a connecting part II which corresponds to the connecting part I; and the connecting part I and the connecting part II are connected through a fastener. The impeller of the centrifugal fan provided by the invention is compact in structure and is relatively low in processing difficulty.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of impeller, particularly centrifugal blowerIn impeller.
Background technology
Centrifugal blower is the mechanical energy that relies on input, improves the gas pressure body of supplying gas side by sideMachinery, it is a kind of driven fluid machinery. Centrifugal blower be widely used in factory, mine,The ventilation of tunnel, cooling tower, vehicle, boats and ships and building, dust discharge and cooling; BoilerVentilation and air inducing with industrial furnace; Cold in the apparatus of air conditioning and domestic electric applianceBut and ventilate; The oven dry of cereal and selecting and recommending; The inflation of wind-tunnel wind regime and aircushion vehicle and propellingDeng.
Centrifugal blower is the principle that is converted to potential energy according to kinetic energy, utilizes the leaf of High Rotation SpeedWheel accelerates gas, then slows down, changes the flow direction, makes kinetic energy convert potential energy (pressure) to.In one-stage centrifugal blower fan, gas is from axially entering impeller, and gas flow changes in the time of impellerBecome radially, then enter diffuser. In diffuser, gas and changing flow direction alsoAnd conduit section area increases slows down air-flow, and this decelerating effect converts kinetic energy to pressurePower energy. Increased pressure mainly occurs in impeller, and next occurs in diffusion process. ManyIn level centrifugal blower, make air-flow enter next impeller with return channel, produce more high pressure.
Wherein impeller is the important composition part in centrifugal blower, and existing impeller normallyIntegral structure, because the blade of impeller is polymorphic structure, therefore, makes impeller like thisDifficulty of processing is higher.
Its publication number of Chinese patent CN202149068U discloses a kind of split type low ratio and has turnedNumber centrifugal pump impellers, impeller adopts Split type structure, by impeller cover, impeller body be used forFastening their securing member composition, impeller body by blade, back shroud and wheel hub by die castingIntegral molding structure.
Can find out, rate revolution centrifugal pump impeller adopts split-type structural, at impeller bodyAfter die casting, be convenient to impeller channel surface to carry out reconditioning, guaranteed the work effect of centrifugal pumpRate; Blade thickeies gradually from inlet side to Exit-edge thickness that (Exit-edge thickness is that inlet side is thick3.5～4.5 times of degree), in this way, make in situation that impeller channel area is equal,Impeller outlet width strengthens, thereby makes width-diameter ratio (the impeller outlet width B/ impeller of impellerDiameter D) strengthen, make impeller channel structure more reasonable, improve the operating efficiency of impeller.
But above-mentioned impeller body and impeller cover are to be directly connected by securing member,Because the blade on impeller body is thinner, cause its connective stability not high.
Existing other centrifugal blower fan blade wheel also all exists similar problem.
Summary of the invention
The object of the invention is the problems referred to above that exist for prior art, a kind of knot is providedStructure is compact and be convenient to the impeller of the centrifugal blower of processing.
Object of the present invention can realize by following technical proposal:
An impeller for centrifugal blower, comprises impeller body and end cap, and described impeller body comprisesConnection Block and some blades, above-mentioned blade and Connection Block are integral type structure, its feature existsIn, described impeller body and end cap are split-type structural, the inside edge of above-mentioned blade and companyJoint chair is connected, and the outer edge of described blade has connecting portion one, and described end cap is annularAnd on end cap, there is the connecting portion corresponding with connecting portion one two, described connecting portion one withConnecting portion two-way is crossed securing member and is connected.
Because this impeller is applied on centrifugal blower, the blade of centrifugal blower is arc slightlyPolymorphic structure. The impeller of this centrifugal blower creationary using impeller body and end cap as pointBody formula structure, impeller body can conveniently be made by existing compression molding process. Certainly,End cap also can conveniently be made by existing extrusion process.
Can find out, although this impeller adopts split-type structural, structure is complicated a little,Be that it is convenient to processing, reduced on the contrary difficulty of processing.
In the impeller of above-mentioned centrifugal blower, the number of described connecting portion one and connecting portion twoMeasure identical and position correspondence one by one.
Each connecting portion one to one one and connecting portion two are all connected by securing member.
In the impeller of above-mentioned centrifugal blower, described connecting portion one is blade outer edgeThe contiguous block protruding, has the screwed hole running through on described contiguous block.
Contiguous block is larger, and it can provide stable link position to securing member.
In the impeller of above-mentioned centrifugal blower, described connecting portion two is inside end capConnecting cylinder cylindraceous, described connecting cylinder inner side is screwed hole.
Connecting cylinder also can provide stable link position to securing member.
In the impeller of above-mentioned centrifugal blower, described end cap inner side has energy and bladeThe contact chip matching, above-mentioned connecting cylinder is positioned at contact chip sidepiece.
The sidepiece of connecting cylinder is connected on contact chip, and the end of connecting cylinder is connected on end cap,Such structure can improve connecting cylinder intensity.
In the impeller of above-mentioned centrifugal blower, described contact chip, connecting cylinder and end capFor integral type structure.
The end cap of integral structure is by the one-shot forming of existing die carter artistic skill.
In the impeller of above-mentioned centrifugal blower, described securing member is screw.
Screw is low and be connected firmly as its cost compare of standard component.
In the impeller of above-mentioned centrifugal blower, described Connection Block upper end has ringwiseRecessed positioned edge, above-mentioned end cap external diameter and positioned edge matches and end cap is embedded in positioned edgePlace.
Connect along thering are two effects: can be to end cap when one, end cap are connected with impeller bodyPlay pre-determined bit effect; Its two, after end cap is connected with impeller body, can make both connections moreClosely with firm.
In the impeller of above-mentioned centrifugal blower, described positioned edge and Connection Block are integratedFormula structure.
Impeller body adopts the one-shot forming of existing die carter artistic skill.
In the impeller of above-mentioned centrifugal blower, described end cap is circular, above-mentioned connecingContact is along being circumferentially distributed on end cap inner side.
When circumferentially uniform contact chip can be with impeller body close contact, contact chip is also rightEnd cap has booster action, makes end cap have enough intensity.
In the impeller of above-mentioned centrifugal blower, described impeller body and end cap are aluminium and closeGold copper-base alloy.
In the impeller of above-mentioned centrifugal blower, described impeller body and end cap are magnesium and closeGold copper-base alloy.
No matter to adopt aluminum alloy materials or magnesium alloy materials can make impeller body, end capWhen having sufficient intensity, its weight is also low weight.
According to actual conditions also can impeller body and one of them of end cap be aluminium alloy materialMaterial, and another one is magnesium alloy materials.
Compared with prior art, the impeller of this centrifugal blower due to impeller body and end cap for pointBody formula structure, makes whole Impeller Machining easy.
Meanwhile, on end cap, have with blade edge along the contact chip, end cap and the impeller that contactIts contact stabilization after body connects, whole impeller stability is high.
In addition, the setting of positioned edge not only further increases the stability of impeller, andIn assembling process, can play the effect of pre-determined bit, assemble also easylier, have very highPractical value.
Brief description of the drawings
Fig. 1 is the stereo decomposing structural representation of the impeller of this centrifugal blower.
Fig. 2 is the Facad structure schematic diagram of end cap in the impeller of this centrifugal blower.
Fig. 3 is the structure schematic diagram of the loyal end cap of impeller of this centrifugal blower.
Fig. 4 is the structural representation of impeller body in the impeller of this centrifugal blower.
In figure, 1, impeller body; 1a, Connection Block; 1b, blade; 1b1, contiguous block;1c, positioned edge; 2, end cap; 2a, connecting cylinder; 2b, contact chip.
Detailed description of the invention
Embodiment mono-
As shown in Fig. 1 and Fig. 2 and Fig. 3 and Fig. 4, the impeller of this centrifugal blower comprises leafWheel body 1 and end cap 2, described impeller body 1 comprises Connection Block 1a and some blade 1b, onStating blade 1b and Connection Block 1a is integral type structure, described impeller body 1 and end cap 2For split-type structural, the inside edge of above-mentioned blade 1b and Connection Block 1a are connected, described leafThe outer edge of sheet 1b has connecting portion one, and described end cap 2 is annular and at end cap 2On there is the connecting portion corresponding with connecting portion one two, described connecting portion one and connecting portion twoBe connected by securing member.
The quantity of described connecting portion one and connecting portion two is identical and position is corresponding one by one.
The contiguous block 1b1 that described connecting portion one protrudes for blade outer edge, described companyConnect and on piece 1b1, there is the screwed hole running through.
Described connecting portion two is connecting cylinder 2a cylindraceous for end cap 2 inner sides, described companyExtend neck 2a inner side is screwed hole.
Described end cap 2 inner sides have the contact chip 2b that can match with blade 1b, onThe connecting cylinder 2a stating is positioned at contact chip 2b sidepiece.
Described contact chip 2b, connecting cylinder 2a and end cap 2 are integral type structure.
Described securing member is screw.
Described Connection Block 1a upper end has recessed ringwise positioned edge 1c, above-mentioned endCover that 2 external diameters and positioned edge 1c match and end cap 2 is embedded in positioned edge 1c place.
Described positioned edge 1c and Connection Block 1a are integral type structure.
Described end cap 2 is circular, and above-mentioned contact chip 2b is along being circumferentially distributed on end cap 2Inner side.
Because this impeller is applied on centrifugal blower, the blade 1b of centrifugal blower is arc slightlyThe polymorphic structure of shape. The impeller of this centrifugal blower is creationary by impeller body 1 and end cap 2As split-type structural, impeller body 1 can conveniently be made by existing compression molding process.Certainly, end cap 2 also can conveniently be made by existing extrusion process.
Can find out, although this impeller adopts split-type structural, structure is complicated a little,Be that it is convenient to processing, reduced on the contrary difficulty of processing.
In the present embodiment, in order to reduce the weight of whole impeller and to ensure its intensity, leafWheel body and end cap are aluminum alloy materials.
Embodiment bis-
The present embodiment is basic identical with the structure of embodiment mono-, and different place is:Impeller body and end cap are magnesium alloy materials.
Claims (10)
1. an impeller for centrifugal blower, comprises impeller body and end cap, described impeller body bagDraw together Connection Block and some blades, above-mentioned blade and Connection Block are integral type structure, its featureBe, described impeller body and end cap are split-type structural, the inside edge of above-mentioned blade withConnection Block is connected, and the outer edge of described blade has connecting portion one, and described end cap is annulusShape and there is the connecting portion corresponding with connecting portion one two on end cap, described connecting portion oneCrossing securing member with connecting portion two-way is connected.
2. the impeller of centrifugal blower according to claim 1, is characterized in that, instituteState that the quantity of connecting portion one and connecting portion two is identical and position is corresponding one by one.
3. the impeller of centrifugal blower according to claim 2, is characterized in that, instituteThe connecting portion one of stating, for the contiguous block that blade outer edge protrudes, has on described contiguous blockThe screwed hole running through.
4. the impeller of centrifugal blower according to claim 2, is characterized in that, instituteThe connecting portion two of stating is connecting cylinder cylindraceous inside end cap, and described connecting cylinder inner side isScrewed hole.
5. the impeller of centrifugal blower according to claim 4, is characterized in that, instituteThe end cap inner side of stating has the contact chip that can match with blade, and above-mentioned connecting cylinder is positioned atContact chip sidepiece.
6. the impeller of centrifugal blower according to claim 4, is characterized in that, instituteContact chip, connecting cylinder and the end cap of stating is integral type structure.
7. the impeller of centrifugal blower according to claim 1, is characterized in that, instituteThe securing member of stating is screw.
8. the impeller of centrifugal blower according to claim 1, is characterized in that, instituteThe Connection Block upper end of stating has recessed ringwise positioned edge, above-mentioned end cap external diameter and locationEdge matches and end cap is embedded in positioned edge place.
9. the impeller of centrifugal blower according to claim 8, is characterized in that, instituteThe positioned edge of stating and Connection Block are integral type structure.
10. the impeller of centrifugal blower according to claim 5, is characterized in that,Described end cap is circular, and above-mentioned contact chip is along being circumferentially distributed on end cap inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610070937.5A CN105587686A (en) | 2016-01-31 | 2016-01-31 | Impeller of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610070937.5A CN105587686A (en) | 2016-01-31 | 2016-01-31 | Impeller of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105587686A true CN105587686A (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610070937.5A Pending CN105587686A (en) | 2016-01-31 | 2016-01-31 | Impeller of centrifugal fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN105587686A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165859A (en) * | 2017-04-28 | 2017-09-15 | 广东威灵电机制造有限公司 | Movable vane wheel, blower fan system and electric tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946067A (en) * | 2008-02-22 | 2011-01-12 | 霍顿公司 | Fan manufacturing and assembly |
| US20110318183A1 (en) * | 2010-06-29 | 2011-12-29 | Turbocam, Inc. | Method for Producing a Shrouded Impeller from Two or More Components |
| CN202520586U (en) * | 2012-03-22 | 2012-11-07 | 德昌电机(深圳)有限公司 | Fan and vacuum cleaner and hand dryer with same |
| CN104405682A (en) * | 2014-12-01 | 2015-03-11 | 重庆德固科技有限公司 | Fan propeller assembly |
| CN104806565A (en) * | 2014-01-23 | 2015-07-29 | 德昌电机(深圳)有限公司 | Centrifugal impeller, fan and household device |
| CN204828041U (en) * | 2015-06-19 | 2015-12-02 | 富泰净化科技(昆山)有限公司 | Pin -connected panel impeller |
| CN205388042U (en) * | 2016-01-31 | 2016-07-20 | 上海卡固电气设备有限公司 | Centrifugal fan's impeller |
-
2016
- 2016-01-31 CN CN201610070937.5A patent/CN105587686A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946067A (en) * | 2008-02-22 | 2011-01-12 | 霍顿公司 | Fan manufacturing and assembly |
| US20110318183A1 (en) * | 2010-06-29 | 2011-12-29 | Turbocam, Inc. | Method for Producing a Shrouded Impeller from Two or More Components |
| CN202520586U (en) * | 2012-03-22 | 2012-11-07 | 德昌电机(深圳)有限公司 | Fan and vacuum cleaner and hand dryer with same |
| CN104806565A (en) * | 2014-01-23 | 2015-07-29 | 德昌电机(深圳)有限公司 | Centrifugal impeller, fan and household device |
| CN104405682A (en) * | 2014-12-01 | 2015-03-11 | 重庆德固科技有限公司 | Fan propeller assembly |
| CN204828041U (en) * | 2015-06-19 | 2015-12-02 | 富泰净化科技(昆山)有限公司 | Pin -connected panel impeller |
| CN205388042U (en) * | 2016-01-31 | 2016-07-20 | 上海卡固电气设备有限公司 | Centrifugal fan's impeller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165859A (en) * | 2017-04-28 | 2017-09-15 | 广东威灵电机制造有限公司 | Movable vane wheel, blower fan system and electric tool |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160518 |
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| RJ01 | Rejection of invention patent application after publication |