CN104279185A - Impeller - Google Patents
Impeller Download PDFInfo
- Publication number
- CN104279185A CN104279185A CN201410261036.5A CN201410261036A CN104279185A CN 104279185 A CN104279185 A CN 104279185A CN 201410261036 A CN201410261036 A CN 201410261036A CN 104279185 A CN104279185 A CN 104279185A
- Authority
- CN
- China
- Prior art keywords
- impeller
- cover plate
- lower cover
- blade
- central shaft
- 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
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an impeller, which is applied to a brushless dust collector motor. The impeller comprises a lower cover plate, wherein the center of the lower cover is gradually convex upwards, the upper surface and the lower surface of the lower cover plate are respectively provided with an arc-shaped surface, and blades are fixedly arranged on the upper surface of the lower cover plate. The impeller has the advantages that the impeller only comprises the lower cover plate and the arc-shaped blades on the lower cover plate, and the semi-opening type impeller is formed, so the size is relatively smaller, and the carrying is convenient; the usage amount of material is little, and the production cost is lower; the center of the lower cover plate is convex upwards to form the arc-shaped surface, so under the condition of the same coverage area of the lower cover plate, the length of each blade is obviously increased, the structure of the impeller is more compact, the size of the impeller is effectively reduced, the deformation or breakage of the blades is avoided when the motor runs at high speed, and the service life of the impeller is prolonged; the blades, the lower cover plate and a center shaft are integrally processed and formed, so the structure strength is higher, the use property is better, the looseness and damage to the cover plate and the blades are avoided, and the service life of the impeller is prolonged.
Description
Technical field
The invention belongs to the manufacturing technology field of motor of dust collector, be specifically related to a kind of impeller.
Background technique
Vacuum cleaner utilizes driven by motor blade High Rotation Speed, in the housing of sealing, produce air negative pressure, thus dirt bits are sucked the cleaning appliance in collection bag, and vacuum cleaner generally can be divided into vertical, horizontal and portable etc. by structure composition.
Motor of dust collector is the core component of vacuum cleaner, generally be made up of two-part, motor part and fan section, because motor of dust collector is very high to rotation speed requirements, usually at 20000-30000 rpm, therefore, conventional motor of dust collector generally adopts series excitation motor of dust collector and little DC dust collector motor.Series excitation motor of dust collector and little DC dust collector motor all belong to brush motor, and its rotating speed is between 20000-40000, although its rotating speed can meet the requirement of motor of dust collector, brush motor volume is large, and motor fan is large, and load is large, and the noise of motor is high.
The impeller of traditional series excitation motor of dust collector is aluminum impeller, and it is enclosed impeller structure, the blade generally including upper cover plate, lower cover plate and be arranged between upper and lower cover plate, material all adopts aluminum alloy, the working efficiency of double shrouded wheel is higher, but its manufacture difficulty is comparatively large, and the upper and lower cover plate of aluminum impeller and blade are formed for assembling, complex structure, upper and lower cover plates easily gets loose damage, and general volume is comparatively large, quality weight, cost of production is higher, and during running, noise is larger.Half-opened impeller is relatively little relative to its volume of double shrouded wheel with unshrouded impeller, but its working efficiency is lower.
And general upper and lower cover plates is slab construction, and blade is uniformly distributed between upper and lower cover plates, in order to increase the working efficiency of impeller, then must increase the length of blade, so just needing the enlarged leather area of upper and lower cover plates, cause the overall volume of impeller to increase.
Along with the development of electric utility, motor of dust collector is also gradually to high-performance, efficient and miniaturization, and brshless DC motor possesses with it that volume is little, noise is low, efficiency is high, and the advantage such as good reliability, strong adaptability in industry obtains applying more and more widely.
In order to reduce the overall volume of vacuum cleaner, general employing brushless electric machine drives, in order to meet the user demand of brushless electric machine, generally blade wheel structure need be done little, traditional aluminum double shrouded wheel is no longer applicable to brushless electric machine, and traditional blade wheel structure performance is lower, energy consumption is comparatively large, and user cost is higher.
Therefore, in view of above problem, be necessary to propose a kind of novel blade wheel structure, to meet the user demand of brushless electric machine impeller, ensureing that motor is high-revolving while, reduce the volume of motor, be convenient for carrying, improve the performance of motor, reduce energy consumption, reduce operating noise, improve environmental quality.
Summary of the invention
In view of this, the invention provides a kind of impeller, comprise integrated lower cover plate and blade, lower cover plate center raises up formation cambered surface, and when lower cover plate area coverage is constant, the length of blade obviously increases, make the structure of impeller comparatively compact, to meet the user demand of brushless electric machine impeller, ensureing that motor is high-revolving while, reduce the volume of motor, be convenient for carrying, improve the performance of motor, reduce energy consumption, reduce operating noise, improve environmental quality.
A kind of impeller that object according to the present invention proposes, is applied on brushless motor of dust collector, and the lower cover plate of described impeller is designed to the structure that center is cambered surface, and in cambered surface, design multiple arc shaped blade.
Preferably, the lower cover plate center of described impeller is upwards protruding gradually, and the upper and lower surface of described lower cover plate all forms cambered surface, and described blade is fixedly installed on the upper surface of described lower cover plate.
Preferably, described impeller also comprises central shaft, and described central shaft is provided with axis hole, and described lower cover plate centered by described central shaft, and is fixedly connected on the outer wall of described central shaft.
Preferably, described lower cover plate is connected to the middle position of described central shaft outer wall.
Preferably, described blade is array distribution centered by described central shaft, and extends to the edge of lower cover plate from central shaft outer wall.
Preferably, described blade, lower cover plate and described central shaft are one-body molded.
Preferably, the top rounding of described blade.
Preferably, be provided with impeller chimney above described blade, the center of described impeller chimney offers intake grill, described blade and described impeller chimney Spielpassung.
Preferably, the interior side direction center indent that described impeller chimney is relative with described blade forms cambered surface, after described blade rotation outer rim formed cambered surface and described impeller chimney inside cambered surface parallel matched, when described impeller chimney is assembled to after above described blade, described impeller chimney becomes Spielpassung with described blade.
Compared with prior art, the advantage of impeller disclosed by the invention is:
1, this impeller is applicable to high vacuum, high rotating speed brushless direct-current motor of dust collector.
2, this impeller only comprises lower cover plate and the multiple arc shaped blades on it, and form half-opened impeller, this impeller volume is relatively little, is convenient for carrying; Materials'use amount is few, and cost of production is lower.The center of lower cover plate raises up formation cambered surface, and when lower cover plate area coverage is constant, the length of blade obviously increases, make the structure of impeller comparatively compact, effectively reduce the volume of impeller, and blade can not be out of shape or rupture when motor runs up, improve the working life of impeller.
3, impeller chimney is provided with above blade, blade and impeller chimney are Spielpassung, impeller chimney plays the effect of upper cover plate in the structure shown here simultaneously, double shrouded wheel structure is formed between itself and lower cover plate and blade, while reduction motor volume, in turn ensure that the working efficiency of impeller, meet motor small volume, high-revolving user demand.
4, blade and lower cover plate and the machine shaping of central shaft one, structural strength is higher, and usability is better, avoids cover plate with interlobate getting loose is damaged, the working life of raising impeller.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of a kind of impeller disclosed by the invention.
Fig. 2 is the sectional view of a kind of impeller disclosed by the invention.
Fig. 3 is blade and impeller chimney Spielpassung sketch.
Fig. 4 is the explosive view of impeller.
The title of the numeral in figure or the corresponding part representated by letter:
1, lower cover plate 2, blade 3, impeller chimney 4, intake grill 5, projection 6, cambered surface 7, central shaft 8, axis hole
Embodiment
The impeller of traditional motor of dust collector is aluminum impeller, it is enclosed impeller structure, the blade generally including upper cover plate, lower cover plate and be arranged between upper and lower cover plate, and the working efficiency of double shrouded wheel is higher, but its manufacture difficulty is larger, and the upper and lower cover plate of aluminum impeller and blade are formed for assembling, complex structure, upper and lower cover plates easily gets loose damage, and general volume is larger, quality weight, cost of production is higher, and during running, noise is larger.And general upper and lower cover plates is slab construction, and blade is uniformly distributed between upper and lower cover plates, in order to increase the working efficiency of impeller, then must increase the length of blade, so just needing the enlarged leather area of upper and lower cover plates, cause the overall volume of impeller to increase.
The present invention is directed to deficiency of the prior art, provide a kind of impeller, comprise integrated lower cover plate and blade, lower cover plate center raises up formation cambered surface, and when lower cover plate area coverage is constant, the length of blade obviously increases, make the structure of impeller comparatively compact, to meet the user demand of brushless electric machine impeller, ensureing that motor is high-revolving while, reduce the volume of motor, be convenient for carrying, improve the performance of motor, reduce energy consumption, reduce operating noise, improve environmental quality.
A kind of impeller that object according to the present invention proposes, is applied on brushless motor of dust collector, and the lower cover plate of impeller is designed to the structure that center is cambered surface, and in cambered surface, design multiple arc shaped blade.
Preferably, the lower cover plate center of described impeller is upwards protruding gradually, and the upper and lower surface of described lower cover plate all forms cambered surface, and described blade is fixedly installed on the upper surface of described lower cover plate.
Preferably, described impeller also comprises central shaft, and described central shaft is provided with axis hole, and described lower cover plate centered by described central shaft, and is fixedly connected on the outer wall of described central shaft.
Preferably, described lower cover plate is connected to the middle position of described central shaft outer wall.
Preferably, described blade is array distribution centered by described central shaft, and extends to the edge of lower cover plate from central shaft outer wall.
Preferably, described blade, lower cover plate and described central shaft are one-body molded.
Preferably, the top rounding of described blade.
Preferably, be provided with impeller chimney above described blade, the center of described impeller chimney offers intake grill, described blade and described impeller chimney Spielpassung.
Preferably, the interior side direction center indent that described impeller chimney is relative with described blade forms cambered surface, after described blade rotation outer rim formed cambered surface and described impeller chimney inside cambered surface parallel matched, when described impeller chimney is assembled to after above described blade, described impeller chimney becomes Spielpassung with described blade.
To be clearly and completely described technological scheme of the present invention by embodiment below.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please also refer to Fig. 1, Fig. 2, as shown in the figure, a kind of impeller, be applied on brushless motor of dust collector, impeller comprises lower cover plate 1, lower cover plate 1 is provided with multiple arc shaped blade 2.Lower cover plate 1 center of impeller upwards forms protruding 5 gradually, and the upper and lower surface of lower cover plate 1 all forms cambered surface 6, and blade is fixedly installed on the upper surface of lower cover plate 1.Cambered surface 6 is formed by being raised up the center of lower cover plate 1, when lower cover plate 1 area coverage is constant, the length of blade 2 obviously increases, make the structure of impeller more compact, effectively reduce the volume of impeller, and blade 2 can not be out of shape or rupture when motor runs up, improve the working life of impeller.
Impeller also comprises central shaft 7, central shaft 7 is provided with axis hole 8, and lower cover plate 1 centered by central shaft 7, and is fixedly connected on the outer wall of central shaft 7.Blade 2 is array distribution centered by central shaft 7, and extends to the edge of lower cover plate 1 from central shaft 7 outer wall.
By arranging central shaft 7, and be fixedly installed lower cover plate 1 and blade 2 with central shaft 7 for benchmark, improve structural strength and the stability of impeller, the rotating shaft of blower fan is inserted by axis hole 8 and is connected with impeller, improve the structural strength of joint, realize the stability of impeller operation.
Lower cover plate 1 is connected to the middle position of central shaft 7 outer wall, and blade 2, lower cover plate 1 and central shaft 7 are one-body molded.Traditional impeller needs first by upper and lower cover plates and blade impact briquetting, after assemble, complex process, inefficiency, the present invention by adopting injection molding, one-body molded go out impeller, production and processing facilitates, and manufacturing efficiency is high, and the structural strength of impeller is better.
The top rounding of blade 2.Carry out rounding process by the intersection, two sides by blade 2, make blade 2 entirety in streamlined structure, air intake is smooth, and working efficiency is higher.The accumulation of dust can be reduced simultaneously, ensure the clean of impeller internal, improve the working life of impeller.
Refer to Fig. 3 and Fig. 4, as shown in the figure, be provided with impeller chimney 3 above blade 2, the center of impeller chimney 3 offers intake grill 4, blade 2 and impeller chimney 3 Spielpassung.During impeller work, outer gas stream enters in impeller through intake grill 4 place, after enter impeller rear end cooling processing carried out to motor circuit board and winding.
The interior side direction center indent that impeller chimney 3 is relative with blade 2 forms cambered surface 6, blade 2 rotate rear outer rim formed cambered surface and impeller chimney inside cambered surface 6 parallel matched, when impeller chimney 3 is assembled to after above blade 2, impeller chimney 3 and 2 one-tenth, blade Spielpassung.
Impeller chimney 3 plays the effect of upper cover plate in the structure shown here simultaneously, forms double shrouded wheel structure between itself and lower cover plate 1 and blade 2, while reduction motor volume, in turn ensure that the working efficiency of impeller, meets motor small volume, high-revolving demand.
The invention discloses a kind of impeller, be applied on brushless motor of dust collector, impeller comprises lower cover plate, and the center of lower cover plate is upwards protruding gradually, and the upper and lower surface of lower cover plate all forms cambered surface, and blade is fixedly installed on the upper surface of described lower cover plate.This impeller only comprises lower cover plate and the multiple arc shaped blades on it, and form half-opened impeller, this impeller volume is relatively little, is convenient for carrying; Materials'use amount is few, and cost of production is lower.The center of lower cover plate raises up formation cambered surface, and when lower cover plate area coverage is constant, the length of blade obviously increases, make the structure of impeller comparatively compact, effectively reduce the volume of impeller, and blade can not be out of shape or rupture when motor runs up, improve the working life of impeller.
Impeller chimney is provided with above blade, blade and impeller chimney are Spielpassung, impeller chimney plays the effect of upper cover plate in the structure shown here simultaneously, double shrouded wheel structure is formed between itself and lower cover plate and blade, while reduction motor volume, in turn ensure that the working efficiency of impeller, meet motor small volume, high-revolving user demand.
Blade and lower cover plate and the machine shaping of central shaft one, structural strength is higher, and usability is better, avoids cover plate with interlobate getting loose is damaged, the working life of raising impeller.
This impeller is applicable to high vacuum, high rotating speed brushless direct-current motor of dust collector.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. an impeller, is applied on brushless motor of dust collector, it is characterized in that, the lower cover plate of described impeller is designed to the structure that center is cambered surface, and in cambered surface, design multiple arc shaped blade.
2. impeller as claimed in claim 1, is characterized in that, the lower cover plate center of described impeller is upwards protruding gradually, and the upper and lower surface of described lower cover plate all forms cambered surface, and described blade is fixedly installed on the upper surface of described lower cover plate.
3. impeller as claimed in claim 2, it is characterized in that, described impeller also comprises central shaft, and described central shaft is provided with axis hole, and described lower cover plate centered by described central shaft, and is fixedly connected on the outer wall of described central shaft.
4. impeller as claimed in claim 3, it is characterized in that, described lower cover plate is connected to the middle position of described central shaft outer wall.
5. impeller as claimed in claim 3, is characterized in that, described blade is array distribution centered by described central shaft, and extends to the edge of lower cover plate from central shaft outer wall.
6. impeller as claimed in claim 3, it is characterized in that, described blade, lower cover plate and described central shaft are one-body molded.
7. impeller as claimed in claim 1, is characterized in that, the top rounding of described blade.
8. impeller as claimed in claim 2, it is characterized in that, be provided with impeller chimney above described blade, the center of described impeller chimney offers intake grill, described blade and described impeller chimney Spielpassung.
9. impeller as claimed in claim 8, it is characterized in that, the interior side direction center indent that described impeller chimney is relative with described blade forms cambered surface, after described blade rotation outer rim formed cambered surface and described impeller chimney inside cambered surface parallel matched, when described impeller chimney is assembled to after above described blade, described impeller chimney becomes Spielpassung with described blade.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261036.5A CN104279185B (en) | 2014-06-12 | 2014-06-12 | A kind of impeller |
| PCT/CN2015/081155 WO2015188748A1 (en) | 2014-06-12 | 2015-06-10 | Impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261036.5A CN104279185B (en) | 2014-06-12 | 2014-06-12 | A kind of impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104279185A true CN104279185A (en) | 2015-01-14 |
| CN104279185B CN104279185B (en) | 2018-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410261036.5A Active CN104279185B (en) | 2014-06-12 | 2014-06-12 | A kind of impeller |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104279185B (en) |
| WO (1) | WO2015188748A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015188748A1 (en) * | 2014-06-12 | 2015-12-17 | 莱克电气股份有限公司 | Impeller |
| CN108468654A (en) * | 2018-04-09 | 2018-08-31 | 张家港市海工船舶机械制造有限公司 | A kind of half-opened impeller and its manufacturing method |
| CN113958536A (en) * | 2020-07-20 | 2022-01-21 | 株式会社丰田自动织机 | Centrifugal compressor |
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| JPS58195098A (en) * | 1982-05-11 | 1983-11-14 | Matsushita Electric Ind Co Ltd | Vaccum cleaner |
| DE19733687A1 (en) * | 1996-08-12 | 1998-02-19 | Kwang Ju Electronics Co Ltd | Motor driven fan for vacuum cleaner with suction effected by rotor impeller |
| JPH11107990A (en) * | 1997-10-02 | 1999-04-20 | Matsushita Electric Ind Co Ltd | Motor driven blower |
| JP2006009669A (en) * | 2004-06-24 | 2006-01-12 | Nidec Shibaura Corp | Centrifugal blower |
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| DE102013102755A1 (en) * | 2012-03-22 | 2013-09-26 | Johnson Electric S.A. | fan |
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2014
- 2014-06-12 CN CN201410261036.5A patent/CN104279185B/en active Active
-
2015
- 2015-06-10 WO PCT/CN2015/081155 patent/WO2015188748A1/en active Application Filing
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015188748A1 (en) * | 2014-06-12 | 2015-12-17 | 莱克电气股份有限公司 | Impeller |
| CN108468654A (en) * | 2018-04-09 | 2018-08-31 | 张家港市海工船舶机械制造有限公司 | A kind of half-opened impeller and its manufacturing method |
| CN113958536A (en) * | 2020-07-20 | 2022-01-21 | 株式会社丰田自动织机 | Centrifugal compressor |
| CN113958536B (en) * | 2020-07-20 | 2023-06-13 | 株式会社丰田自动织机 | Centrifugal compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104279185B (en) | 2018-01-30 |
| WO2015188748A1 (en) | 2015-12-17 |
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