CN108700084A - Air-supply arrangement and dust catcher - Google Patents
Air-supply arrangement and dust catcher Download PDFInfo
- Publication number
- CN108700084A CN108700084A CN201780013657.3A CN201780013657A CN108700084A CN 108700084 A CN108700084 A CN 108700084A CN 201780013657 A CN201780013657 A CN 201780013657A CN 108700084 A CN108700084 A CN 108700084A
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- CN
- China
- Prior art keywords
- air
- shield
- blade
- substrate
- supply arrangement
- 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
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
- F04D29/162—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of a centrifugal flow wheel
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- 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
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2238—Special flow patterns
-
- 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
-
- 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
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
Abstract
A kind of air-supply arrangement, has:It can be around the impeller of the central axis rotation vertically extended;Positioned at the downside of the impeller and make the motor of impeller rotation;And the pipeline of the impeller is accommodated, there is current path in the inner space of the pipeline, so that fluid is flowed into the suction inlet of the inner space and the blow-off outlet of fluid is discharged from the inner space, the impeller has:The multiple blades arranged in the circumferential;Link the top of multiple blades and there is the cricoid shield of opening portion in the position opposed in the axial direction with the suction inlet;And the substrate for linking the lower part of multiple blades and extending radially, the pipeline has the cover portion of the top of at least part and the shield for covering the blade, the internal diameter of the shield is more than or equal to the outer diameter of the substrate, the cover portion has the first protrusion, and first protrusion is prominent from the lower surface of the cover portion towards axial downside and is configured at the position that radially inner side is leaned on than the inner peripheral surface of the shield.
Description
Technical field
The present invention relates to air-supply arrangement and dust catchers.
Background technology
Previous air-supply arrangement is disclosed in Japanese Kokai special open 2002-156128 bulletins.Japanese Kokai
The turbofan of special open 2002-156128 bulletins has shell, motor, substrate, blade and shield.Substrate, blade and
Shield is housed inside in shell.It is arranged with multiple blades in the circumferential.Shield links the end of multiple blades.Multiple blades arrangements
On substrate periphery.
Shell has sucking side end, straight line portion and angled step portion.The internal diameter of sucking side end is formed as and substrate
Outer diameter it is identical or bigger than the outer diameter.
Air is by from turbofan central part, circumferencial direction is discharged outward.Moreover, because shield is as characterized above,
Therefore opinion can reduce the noise of turbofan.
Existing technical literature
Patent document
Patent document 1:Japanese Kokai:Special open 2002-156128 bulletins
Invention content
Problems to be solved by the invention
But according to turbofan disclosed in above-mentioned Japanese Kokai special open 2002-156128 bulletins, to blade
Radial outside discharge air gap of the part between shield and shell to radially inner side adverse current.At this point, in shell
Turbulent flow or the air-flow generation air drag because of adverse current can occur in internal current path, to which there are make air-supply arrangement
The problem of air supply efficiency declines.
Therefore, the purpose of the present invention is to provide a kind of air-supply arrangement, can inhibit to occur in the current path of pipeline
Turbulent flow or air-flow can improve air supply efficiency to radially inner side adverse current.Also, the purpose of the present invention is to provide one kind to have
The dust catcher of the air-supply arrangement of air supply efficiency can be improved.
Means for solving the problems
Air-supply arrangement involved by the illustrative embodiment of the present invention has:Impeller, the impeller can be around edges
The central axis rotation that upper and lower directions extends;Motor part, the motor part are located at the downside of the impeller, make the impeller in
Mandrel line rotates;And pipeline, the pipeline accommodate the impeller, the pipeline has current path, makes in the interior space
Fluid flows into the suction inlet of the inner space and the blow-off outlet of fluid is discharged from the inner space, the air-supply arrangement
It is characterized in that, the impeller has:Multiple blades, the multiple blade arrange in the circumferential;Cricoid shield, the shield connect
The top of multiple blades is tied, and there is opening portion in the position opposed in the axial direction with the suction inlet;And substrate,
The substrate links the lower part of multiple blades, and extends radially, and the pipeline, which has, covers the blade at least
The cover portion of the top of a part of and described shield, the internal diameter of the shield are more than or equal to the outer diameter of the substrate, the cover portion
With the first protrusion, first protrusion is prominent from the lower surface of the cover portion towards axial downside, and is configured at than the shield
The inner peripheral surface of cover leans on the position of radially inner side.
Invention effect
An illustrative embodiment according to the present invention is capable of providing a kind of air-supply dress that can improve air supply efficiency
It sets.Also, an illustrative embodiment according to the present invention is capable of providing a kind of dust suction with such air-supply arrangement
Device.
Description of the drawings
Fig. 1 is the sectional view of the clean robot involved by embodiments of the present invention.
Fig. 2 is the stereogram of the air-supply arrangement involved by embodiments of the present invention.
Fig. 3 is the longitudinal section view of the air-supply arrangement involved by embodiments of the present invention.
Fig. 4 is the stereogram of the impeller involved by embodiments of the present invention viewed from above.
Fig. 5 is the vertical view of the impeller involved by embodiments of the present invention.
Fig. 6 is the side view cutaway drawing of the impeller involved by embodiments of the present invention.
Fig. 7 is the longitudinal section view for amplifying the part for showing the air-supply arrangement involved by embodiments of the present invention.
Fig. 8 is the longitudinal section view for amplifying the part for showing the air-supply arrangement involved by embodiments of the present invention.
Fig. 9 is that the vertical profile for the part for amplifying the air-supply arrangement for showing the variation involved by embodiments of the present invention regards
Figure.
Figure 10 is to amplify indulging near the shield for the air-supply arrangement for showing the variation involved by embodiments of the present invention
Sectional view.
Figure 11 is to amplify indulging near the shield for the air-supply arrangement for showing the variation involved by embodiments of the present invention
Sectional view.
Specific implementation mode
Hereinafter, the illustrative embodiment of the present invention is described in detail with reference to attached drawing.In addition, in following explanation
In, the extending direction of the central axis A of air-supply arrangement 1 shown in Fig. 3 is referred to as " axial direction ", it will be with the center of air-supply arrangement 1
Radial direction and circumferential direction centered on axis A are referred to as " radial direction " and " circumferential direction ".Similarly, about impeller shown in fig. 4 to fig. 6
20, it also will be simple with the axial of air-supply arrangement 1, radial direction and circumferential consistent direction in the state of being assembled in air-supply arrangement 1
Referred to as " axial direction ", " radial direction " and " circumferential direction ".In addition, upper and lower directions is only intended to the title of explanation, actual position is not limited
Set relationship and direction.
The structure > of 1. dust catchers of <
The air-supply arrangement of the illustrative embodiment of the present invention is illustrated.Fig. 1 is the illustrative of the present invention
The sectional view of clean robot 100 involved by one embodiment, as shown in Figure 1, air-supply arrangement 1 is equipped on clean robot
(dust catcher) 100 and be used as aspiration means.
From walking on the ground F of installation position, sucking on one side includes the dust on the F of ground on clean robot 100 one side
Air, and discharge the air in addition to dust, thus cleaned on the F of ground.Clean robot 100 is in discoidal shell
The inside of body 101 has suction path 104, dust collecting container 105, filter portion 106, exhaust channel 107 and air-supply arrangement 1.
The lower surface of shell 101 is provided with driving wheel 109 and front-wheel 110.
Shell 101 has air entry 103 in lower surface central portion, has exhaust outlet 108 in side surface part.Pass through air-supply arrangement
1 driving, clean robot 100 follow the air of dust of the sucking of air entry 103 comprising ground F while from walking.From suction
The air comprising dust in 103 suction casing 101 of gas port is flowed by suction path 104 in dust collecting container 105.Flow into collection
Air-flow in dirt container 105 is sucked by filter portion 106, and by exhaust channel 107 in air-supply arrangement 1.Suction
It is discharged to the air of air-supply arrangement 1 from the oblique upper of exhaust outlet 108 rearward.At this point, contained in air-flow in dust collecting container 105
Dust captured by filter portion 106, be stacked in dust collecting container 105 to dust D.
The structure > of 2. air-supply arrangements of <
Fig. 2 is the stereogram of the air-supply arrangement 1 involved by embodiments of the present invention.Also, Fig. 3 is the implementation of the present invention
The longitudinal section view of air-supply arrangement 1 involved by mode.As shown in FIG. 2 and 3, air-supply arrangement 1 has impeller 20, motor part 30
And pipeline 10.Impeller 20 is contained in the inner space of pipeline 10.Motor part 30 is located at the downside of impeller 20, make impeller 20 around
Central axis A rotations.
Impeller 20 and the axis axially extended from motor part 30 connection (not shown), and being supported to can be with central axis
It is rotated centered on A.That is, impeller 20 can be around the central axis A rotations vertically extended.Control base board 40 is configured in horse
Up to the axial downside in portion 30, and carry out the control of motor part 30.
The structure > of 3. pipelines of <
Pipeline 10 in the interior space with current path 13, so that fluid is flowed into the suction inlet 11 of inner space and from interior
The blow-off outlet 12 of fluid is discharged in portion space, and pipeline 10 accommodates impeller 20.Pipeline 10 is by cover portion 14, peripheral wall portion 15 and motor shell 16
It constitutes, current path 13 is formed in the inner space surrounded by them.In more detail, pipeline 10 has covering blade 23
At least part and shield 22 top cover portion 14.Cover portion 14 covers the top of impeller 20, is seen from axial plane
Be formed as circular when examining.The outer diameter of cover portion 14 is bigger than the outer diameter of impeller 20.In addition, in the present embodiment, pipeline 10 is by wrapping
The component of a part containing cover portion 14 and peripheral wall portion 15 and the component of a part and motor shell 16 comprising peripheral wall portion 15 are constituted.
Thereby, it is possible to be the resin component of fission by two above-mentioned parts-mouldings, therefore pipeline 10 can be constituted cheaply.
The columnar cylindrical portion 14a extended on the upside of axial direction is provided in the central portion of cover portion 14.On cylindrical portion 14a
Be formed with from axial planar observation when rounded suction inlet 11.The opening with aftermentioned shield 22 in the axial direction of suction inlet 11
Portion 22a is arranged opposite, and gas (fluid) is from the outside through in the inner space by 11 flow ipe 10 of suction inlet.
Peripheral wall portion 15 covers impeller 20 from side, and extends from the outer peripheral edge of cover portion 14 to axial downside and be formed as cylinder
Shape.Also, it is provided with the mouth 15a extended to radial outside in peripheral wall portion 15, is formed with from the inside of pipeline 10 in mouth 15a
The blow-off outlet 12 of gas (fluid) is discharged in space.
Motor shell 16 is located at the axial downside of impeller 20.In more detail, air-supply arrangement 1, which also has, is located at aftermentioned substrate
The motor shell 16 of 21 downside.The upper surface of motor shell 16 extends radially, and extend to peripheral wall portion 15 lower end and with week
Wall portion 15 links.Also, the circumferential surface of motor shell 16 extends from the outer peripheral edge of peripheral wall portion 15 to axial downside and is formed as cylindric,
There are motor part 30 and control base board 40 in the inner containment of motor shell 16.
On the upper surface of motor shell 16, the ring-type being recessed downwards is being formed with by the position of radial outside than impeller 20
Recess portion 16a.It is constituted comprising impeller between suction inlet 11 and blow-off outlet 12 by peripheral wall portion 15, recess portion 16a and cover portion 14
The current path 13 of the annular section of 20 radial outside.
The structure > of 4. impellers of <
Fig. 4 is the stereogram of the impeller 20 involved by embodiments of the present invention viewed from above, and Fig. 5 is the reality of the present invention
Apply the vertical view of the impeller 20 involved by mode.Also, Fig. 6 is that the side view of the impeller 20 involved by embodiments of the present invention is cutd open
View.
As shown in Figures 4 to 6, impeller 20 has multiple blades 23, cricoid shield 22 and substrate 21.Blade 23 exists
Between substrate 21 and shield 22.Multiple blades 23 arrange in the circumferential.
Shield 22 is annular in shape, links the top of multiple blades 23, and in the position opposed in the axial direction with suction inlet 11
With opening portion 22a.In more detail, shield 22 links the top of multiple blades 23 and is formed as circular, in shield 22
Center portion is formed with the opening portion 22a for sucking gas.Opening portion 22a is rounded when from axial planar observation.
Substrate 21 links the lower part of multiple blades 23, and extends radially.Substrate 21 is formed as disk-shaped.Substrate 21 has
Have from the lower surface of substrate 21 towards downside substrate protruding portion 21a outstanding.In more detail, substrate protruding portion 21a is from substrate
The radially outer edge of 21 lower surface protrudes, and is formed as cyclic annular (with reference to Fig. 6).
Blade 23 has different the first blade 23a and the second blade 23b, the first blade 23a of radical length and the
Two blade 23b are alternately arranged in the circumferential.First blade 23a and the second blade 23b is erected in an axial direction and from radially inner side
The plate-shaped member extended outward.It is inside by diameter that the radial inner end of first blade 23a is located at the radial inner end than the second blade 23b
The position of side, radially, the first blade 23a is than the second blade 23b long.
Also, the first blade 23a and the second blade 23b are bent in the following manner (with reference to Fig. 5):From axial upside
Planar observation when, in the case where making impeller 20 rotate counterclockwise, radial outer end is relative to radial inner end to rotation
Direction rear side tilts, and direction of rotation rear is recess.Also, the interval between the first blade 23a and the second blade 23b
Expand with towards radial outside.
Also, the radial outer end 24b of the radial outer end 24a of the first blade 23a and the second blade 23b are outer than substrate 21
Periphery extends to radial outside (with reference to Fig. 4).That is, radial outer end 24a, 24b of blade 23 than substrate 21 outer peripheral edge to radial direction
Outside extends.Also, the radial inner end of the first blade 23a and the second blade 23b extend (ginseng than suction inlet 11 to radially inner side
According to Fig. 3).That is, the radial inner end of blade 23 extends than suction inlet 11 to radially inner side.Thereby, it is possible to larger landform radially
At blade 23, so as to increase the air quantity generated by the rotation of impeller 20.The outer peripheral edge of substrate 21 can be other shapes
Shape, such as a part of position can also be cut off from circle-shaped outer rim to radially inner side.
The upper end of first blade 23a and the second blade 23b have to axial upside protruding portion 25a, 25b outstanding (ginseng
According to Fig. 6).Protruding portion 25a, 25b are located at the position that radially inner side is leaned on than opening portion 22a, and are arranged on same circle, and than shield
The upper end of cover 22 protrudes upward.
Also, the upper end of the first blade 23a and the second blade 23b have:Under from protruding portion 25a, 25b to radially inner side
Inclined surface 26a, 26b of drop;And inclined surface 27a, 27b declined from protruding portion 25a, 25b to radial outside.
Also, inclined surface 27a, 27b are formed by the position of radial outside in oriented axial direction in the opening portion 22a than shield 22
The upper end of side protrusion 28a, 28b outstanding, protrusion 28a, 28b extend to the lower surface of shield 22 and link with shield 22.
That is, blade 23 have by the position of radial outside than aftermentioned first protrusion 17 (with reference to Fig. 7) it is outstanding prominent to axial upside
Play portion 28a, 28b.Thereby, it is possible to the radial outsides in opening portion 22a significantly to form blade 23 in the axial direction, so as to increase
The air quantity generated by the rotation of impeller 20 greatly.
Substrate 21, shield 22 and blade 23 are formed by the synthetic resin of identical material, and the internal diameter D2 of shield 22 is formed
For size identical with the outer diameter D 1 of substrate 21 (with reference to Fig. 6).
As a result, when being formed across the impeller 20 of substrate 21 and shield 22, interfering for upper/lower die can be prevented and divided
Mold is not withdrawn to axial upside and downside.Thus, it is possible to impeller 20 is integrally formed out by mold, so as to improve leaf
The production of wheel 20.In addition, even if can if in the case where the internal diameter D2 of shield 22 is formed as bigger than the outer diameter D 1 of substrate 21
Impeller 20 is enough integrally formed out by mold.
Relationship > between 5. pipelines of < and impeller
Fig. 7 and Fig. 8 is to amplify to show that the vertical profile of a part for the air-supply arrangement 1 involved by embodiments of the present invention regards
Figure, shows the relationship between pipeline 10 and impeller 20.Also, as shown in fig. 7, shield 22, which has, constitutes the interior of opening portion 22a
Circumferential surface 22b.Cover portion 14 has the first protrusion 17, and first protrusion 17 is prominent from the lower surface of cover portion 14 towards axial downside, and
It is configured at the position that radially inner side is leaned on than the inner peripheral surface 22b of shield 22.The peripheral surface of first protrusion 17 radially with shield 22
Inner peripheral surface 22b it is opposed.In addition, the peripheral surface of the first protrusion 17 and the inner peripheral surface 22b of shield 22 can not also must be faced with week
It sets.That is, as long as the outer surface of the first protrusion 17 is opposed with the inner surface 22b of shield 22 radially.In addition, meaning
The shape of the outer surface of first protrusion 17 of this narration and the inner surface 22b of shield 22 are not limited to circumferential surface.For example, the first protrusion
17 outer surface and the inner surface 22b of shield 22 can also be formed with bumps in a part for circumferential surface.
Flow path of gap of first protrusion 17 blocking between shield 22 and cover portion 14 to the air R1 of radially inner side adverse current.
Therefore, it is possible to inhibit gap of the part for the air blown out to the radial outside of impeller 20 between shield 22 and cover portion 14 inverse
Stream.Thus, it is possible to prevent the air drag of the air generation because turbulent flow or adverse current occur in current path 13 due to air-supply is caused to be imitated
Rate declines.Also, the radial clearance between the peripheral surface of the first protrusion 17 and the inner peripheral surface 22b of shield 22 is than shield 22 and cover portion
Axial gap between 14 is narrow.Thus, it is possible to stop sky of the gap between shield 22 and cover portion 14 to radially inner side adverse current
The flowing of gas R1.
Also, the lower end of the radial outer end of the first protrusion 17 extends under the inner peripheral surface 22b of axial height and shield 22
The roughly the same position of the height at end, or extend to position axially below.As a result, along the lower surface of cover portion 14 towards diameter
The air to circulate outward is swimmingly drawn the lower end of the inner peripheral surface 22b of guiding protective cover 22 from the lower end of the first protrusion 17, and is led to
The radial outside for crossing lower surface towards the impeller 20 of shield 22 is blown out.Thus, it is possible to more improve the air-supply effect of air-supply arrangement 1
Rate.That is, the collision of the air of circulation and the inner peripheral surface 22b of shield 22 can be reduced, thus the air to circulate can efficiently to
Radial outside is blown out.
In addition, as shown in figure 8, the protrusion 28b of the protrusion 28a of the first blade 23a and the second blade 23b are (in Fig. 7
It is not shown, with reference to Fig. 4) linking by the position of radial outside and the lower surface of shield 22 than the first protrusion 17, the first protrusion 17
It is opposed with inclined surface 27a, 27b in the up-down direction.Therefore, convex in the ratio first for setting the first blade 23a and the second blade 23b
Portion 17 by radial outside region be blade first area L1 and set region opposed with the first protrusion 17 in the up-down direction as
In the case of blade second area L2, about the upper end of the first blade 23a and the second blade 23b, blade first area L1
In the upper position in the upper end of the radial outer end than blade second area L2.
That is, blade 23 has:Positioned at the blade first area L1 than the first protrusion 17 by the position of radial outside;And
The upper end of the blade second area L2 opposed with the first protrusion 17 in upper and lower directions, blade first area L1 are located at than blade second
The upper position in the upper end of the radial outer end of region L2.Thus, even if vibrated in the up-down direction when impeller 20 rotates
In the case of, it can also prevent the first blade 23a and the second blade 23b from being contacted with the first protrusion 17.
Also, Fig. 7 is returned to, cricoid groove portion 16b is provided on the upper surface of motor shell 16,16b is in axis for the groove portion
It is opposed with the substrate protruding portion 21a outstanding of the lower surface outer circumference end from substrate 21 upwards.The radial width of groove portion 16b is more prominent than substrate
The radial width for going out portion 21a is big.As a result, by the way that substrate protruding portion 21a and groove portion 16b close to configuration, can be reduced substrate 21
Lower surface and the upper surface of motor shell 16 between axial gap.
Thereby, it is possible to a parts for the air for inhibiting to blow out to the radial outside of impeller 20 from the lower surface of substrate 21 and horse
Up to the gap adverse current between the upper surface of shell 16, so as to prevent because turbulent flow or the air of adverse current occur in current path 13
The air drag of generation and cause air supply efficiency to decline.
Also, the axial gap between the lower end and the upper surface of motor shell 16 of substrate protruding portion 21a is than under substrate 21
Axial gap between surface and the upper surface of motor shell 16 is narrow.Thus, it is possible to further suppress the radial outside to impeller 20
A part for the air of blowout flows into the gap between the lower surface and the upper surface of motor shell 16 of substrate 21 and inside to diameter
Side adverse current.
In addition, substrate protruding portion 21a can also be formed in the position in addition to radially outer edge of substrate 21.For example, substrate
Protruding portion 21a can also be formed in the position of ratio radially outer edge in the inner part in the lower surface of substrate 21.Even if in this case,
Also can inhibit the part of the air blown out to the radial outside of impeller 20 as air R2 flow into the lower surface of substrate 21 with
In gap between the upper surface of motor shell 16 and to radially inner side countercurrently.
The driving > of 6. air-supply arrangements of <
At drive motor portion 30, impeller 20 is rotated centered on central axis A.Air is inhaled from suction inlet 11 as a result,
Enter the inside of pipeline 10.The air of the inside of intake line 10 is accelerated by impeller 20 to radial outside.By outside to diameter
The air that side accelerates is blown out by between shield 22 and substrate 21, and to the radial outside of impeller 20.Diameter to impeller 20 is outside
The air of side blowout is outer from blow-off outlet 12 to pipeline 10 by current path 13 circumferentially formed in the inside of pipeline 10
Portion is discharged.
7. variation > of <
Fig. 9 is one of the variation for amplifying the air-supply arrangement 1 involved by the illustrative embodiment for showing the present invention
The longitudinal section view divided.Can also second protrusion 18 outstanding be set on the downside of axial direction in the lower surface of cover portion 14.Second protrusion 18
Inner peripheral surface it is opposed with the peripheral surface of shield 22 radially.
Second protrusion 18 stops that air-flow flows into the gap between shield 22 and cover portion 14.Therefore, it is possible to prevent to impeller
A part for the air of 20 radial outside blowout flows into the gap between shield 22 and cover portion 14, so as to further press down
It makes and turbulent flow or adverse current occurs in current path 13.Alternatively, it is also possible to which both the first protrusion 17 and the second protrusion 18 is arranged,
But the air resistance generated because the air of turbulent flow or adverse current occurs in current path 13 can be prevented a side is only set
Power and cause air supply efficiency to decline.Also, the radial clearance ratio between the inner peripheral surface and the peripheral surface of shield 22 of the second protrusion 18
Axial gap between shield 22 and cover portion 14 is narrow.Thus, it is possible to stop gap between shield 22 and cover portion 14 to radial direction
The flowing of the air of inside adverse current.
Figure 10 is the shield for the air-supply arrangement 1 for amplifying the variation involved by the illustrative embodiment for showing the present invention
Longitudinal section view near 22.The inner peripheral surface 22b of shield 22 has the first inner peripheral surface 221 and the second inner peripheral surface 222, the first inner peripheral surface
221 are configured at than the second inner peripheral surface 222 by axis position to the upper side.First inner peripheral surface 221 is formed parallel to axial, in second
Circumferential surface 222 is formed as:Relative to axially inclined in a manner of with towards axial downside and far from central axis A, and direction
The convex bending of radially inner side.Also, the first inner peripheral surface 221 is with the second inner peripheral surface 222 by convex curved towards radially inner side
Bent bending section 223 and link.That is, the lower end of the first inner peripheral surface 221 and the upper end of the second inner peripheral surface 222 connect smoothly.
That is, the radial clearance between the peripheral surface of the first protrusion 17 and the inner peripheral surface 22b of shield 22 compares on the downside of axial direction
Axial upside forms wide.
Therefore, even impeller 20 vibrates and the lower end ratio of the inner peripheral surface 22b of shield 22 in the up-down direction when rotated
In the case that the lower end of the radial outer end of first protrusion 17 is reduced to axial downside, along the following table of cover portion 14 towards radial outside
The air of circulation also can be guided swimmingly along the second inner peripheral surface 222 to radial outside by the lower end from the first protrusion 17.Cause
And even in the case that impeller 20 vibrates in the up-down direction when rotated, it can also inhibit the air supply efficiency of air-supply arrangement 1
It reduces.
Moreover, the first inner peripheral surface 221 and the second inner peripheral surface 222 are by towards the bending section of the convex bending of radially inner side
223 and link, the second inner peripheral surface 222 is formed towards the convex bending of radially inner side, and thus, it is possible to will be along in shield 22
Guide to radial outside to the smooth air of circumferential surface 22b circulations.Thereby, it is possible to further suppress the air supply efficiency of air-supply arrangement 1
It reduces.Here, linking the lower end and the second inner peripheral surface 222 that this statement refers to the first inner peripheral surface 221 by bending section 223
Upper end connects smoothly.
Also, by with the first inner peripheral surface 221 for being axially formed parallel to, from the upper end of inner peripheral surface 22b to provide
Width ensures the thickness of the upper and lower directions of shield 22, therefore the rigidity of shield 22 can be inhibited to decline.
In addition, Figure 11 is the air-supply arrangement 1 for the variation that amplification is shown involved by the illustrative embodiment of the present invention
Shield 22 near longitudinal section view can also be omitted as shown in figure 11 in the inner peripheral surface 22b of shield 22 parallel with axial direction
Face.In this case, inner peripheral surface 22b entire surfaces are made of the second inner peripheral surface 222.With this configuration, even impeller 20 is revolving
In the case of being vibrated in the up-down direction when turning, can also further suppress the air supply efficiency of air-supply arrangement 1 reduces.
In addition, in Figure 10 and Figure 11, the second inner peripheral surface 222 is formed towards the convex bending of radially inner side, but
Can by be not bent and in a manner of with towards axial downside and far from central axis A relative to axially inclined circular conical surface Lai
Form the second inner peripheral surface 222.
According to the present embodiment, the internal diameter of shield 22 is formed as outer diameter identical as the outer diameter of substrate 21 or than substrate 21
Greatly, thus, it is possible to prevent interfering for upper/lower die, to withdraw from mold to axial upside and downside respectively.Thus, energy
Impeller 20 is enough integrally formed out by mold, so as to improve production.
Also, the first protrusion 17 is prominent from the lower surface of cover portion 14 towards axial downside, and the first protrusion 17 is configured at than shield
The inner peripheral surface of cover 22 leans on the position of radially inner side.Blocking air-flow in the first protrusion 17 flows between shield 22 and cover portion 14 as a result,
The flow path of air in gap and to radially inner side adverse current.Therefore, it is possible to inhibit the air blown out to the radial outside of impeller 20
A part flow into the gap between shield 22 and cover portion 14, so as to prevent because occur in current path 13 it is turbulent or
Air drag that the air of adverse current generates and cause air supply efficiency to decline.
Also, the peripheral surface of the first protrusion 17 is opposed with the inner peripheral surface of shield 22 radially.Pass through the first protrusion as a result,
17 enclose the radially inner side in the gap between shield 22 and cover portion 14, so as to more prevent because being sent out in current path 13
It gives birth to the air drag of the air generation of turbulent flow or adverse current and air supply efficiency is caused to decline.In addition, in the present embodiment, first is convex
Radial clearance between the peripheral surface and the inner peripheral surface of shield 22 in portion 17 is fixed in the axial direction.But the periphery of the first protrusion 17
Radial clearance between face and the inner peripheral surface of shield 22 can also be not fixed in the axial direction.For example, it is also possible to make the first protrusion 17
Peripheral surface and shield 22 inner peripheral surface at least one party bending.
By be arranged from the lower surface of cover portion 14 towards axial downside it is prominent and opposed with the peripheral surface of shield 22 second
Protrusion 18, the second protrusion 18 stop that air-flow flows into the gap between shield 22 and cover portion 14.Therefore, it is possible to inhibit to impeller 20
The part of air of radial outside blowout flow into the gap between shield 22 and cover portion 14, so as to prevent because in gas
The air drag of the air generation of turbulent flow or adverse current occurs in logical circulation road 13 and air supply efficiency is caused to decline.
Also, it as blade first area and is located at by the region of radial outside in the first protrusion of ratio 17 for setting blade 23
Lower section is in the case that the region opposed with the first protrusion 17 is blade second area upwards, about the upper end of blade 23, blade the
One region is located at the position more upper than the upper end of the radial outer end of blade second area.Thus, even impeller 20 is rotating
When in the up-down direction vibrate in the case of, can also prevent the upper end of blade 23 from being contacted with the first protrusion 17.Further, it is possible to
Blade 23 is significantly formed in the axial direction by the position of radial outside than the first protrusion 17, so as to increase through impeller 20
The air quantity of rotation and generation.
Also, the lower end of the inner peripheral surface 22b of shield 22 and the axial height of the lower end of the radial outer end of the first protrusion 17 are big
It causes identical.The air to circulate as a result, towards radial outside along the lower surface of cover portion 14 is by swimmingly under the first protrusion 17
The lower end of the inner peripheral surface 22b of guiding protective cover 22 is drawn at end, and is blown towards the radial outside of impeller 20 by the lower surface of shield 22
Go out.Thus, it is possible to reduce air supply efficiency is further increased because of the air drag that the first protrusion 17 generates.
In addition, the lower end that the lower end of the inner peripheral surface 22b of shield 22 can also be located at the radial outer end than the first protrusion 17 is leaned on
Axis position to the upper side.Even if in this case, due to air quilt that the lower surface along cover portion 14 is circulated towards radial outside
Swimmingly draw the lower end of the inner peripheral surface 22b of guiding protective cover 22 from the lower end of the first protrusion 17, therefore can also improve air-supply arrangement 1
Air supply efficiency.Also, it in this configuration, can also reduce the radial outer end of the inner peripheral surface 22b and the first protrusion 17 of shield 22
Between radial clearance, therefore the part of the air blown out to the radial outside of impeller 20 can be inhibited from shield 22 and cover portion
Gap adverse current between 14.
Also, the radial outer end of blade 23 extends than the outer peripheral edge of substrate 21 to radial outside, the radial inner end of blade 23
Extend to radially inner side than suction inlet 11, thus, it is possible to significantly form blade 23 radially, passes through leaf so as to increase
The air quantity taken turns 20 rotation and generated.
Also, since the axial gap between the lower end and the upper surface of motor shell 16 of substrate protruding portion 21a is than substrate 21
Lower surface and the upper surface of motor shell 16 between axial gap it is narrow, therefore substrate protruding portion 21a blocking air-flow flows into substrate
In axial gap between 21 lower surface and the upper surface of motor shell 16.Therefore, it is possible to inhibit the radial outside to impeller 20
A part for the air of blowout flows into the gap between the lower surface and the upper surface of motor shell 16 of substrate 21, so as to anti-
Only the air drag of the air generation of turbulent flow or adverse current occurs in current path 13 and air supply efficiency is caused to decline for addiction.
Also, substrate protruding portion 21a is located at the radially outer edge of substrate 21.It is provided with upper on the upper surface of motor shell 16
The lower section groove portion 16b opposed with substrate protruding portion 21a upwards.Also, groove portion 16b is formed as radial width than substrate protruding portion
The radial width of 21a is big.That is, being formed on the upper surface of motor shell 16 opposed with substrate protruding portion 21a in the up-down direction
And the radial width groove portion 16b bigger than the radial width of substrate protruding portion 21a.Thus, it is possible to by substrate protruding portion 21a and slot
Portion 16b more reduces the axial gap between the lower surface of substrate 21 and the upper surface of motor shell 16 close to configuration.Thus, energy
It enough further suppresses in the gap between the lower surface and the upper surface of motor shell 16 that flow into substrate 21.
Embodiment and variation illustrated above is the illustration of the present invention.The structure of embodiment and variation also may be used
Suitably to change in the range of the technological thought without departing from the present invention.Also, embodiment and multiple variations can also
It combines and implements within the bounds of possibility.
Also, as described in Fig. 1, air-supply arrangement 1 of the invention is equipped on clean robot 100.In addition, air-supply arrangement 1
It is not only equipped on clean robot 100, but also the dust catchers such as Portable cleaner can be equipped on.Thereby, it is possible to realize to send
The efficient dust catcher of wind.Also, the device in addition to dust catcher can also be equipped on.For example, the air-supply arrangement 1 of the present invention
It can be equipped on the electronic equipments such as computer as cooling use in inside.Also, the air-supply arrangement 1 of the present invention can also be equipped on
Other various OA equipment, medical instrument, household appliances or transporting equipments.
Also, the structure of the detail section about air-supply arrangement 1, can also be with above-mentioned embodiment and variation not
Together.Also, each element occurred in above-mentioned embodiment and variation can also be fitted in the range of not generating contradiction
Locality combination.
Industrial availability
The air-supply arrangement that the air supply efficiency of the present invention is high is for example adapted for dust catcher.In addition, the air-supply arrangement of the present invention is also
Other electronic equipments can be used in.
Label declaration
1:Air-supply arrangement;10:Pipeline;11:Suction inlet;12:Blow-off outlet;13:Current path;14:Cover portion;14a:Cylinder
Portion;15:Peripheral wall portion;15a:Mouth;16:Motor shell;16a:Recess portion;16b:Groove portion;17:First protrusion;18:Second protrusion;20:
Impeller;21:Substrate;21a:Substrate protruding portion;22:Shield;22a:Opening portion;22b:Inner peripheral surface;23:Blade;23a:First leaf
Piece;23b:Second blade;24a,24b:Radial outer end;25a,25b:Protruding portion;26a,26b:Inclined surface;27a,27b:It tilts
Face;30:Motor part;40:Control base board;100:Clean robot;101:Shell;103:Air entry;104:Suction path;105:
Dust collecting container;106:Filter portion;107:Exhaust channel;108:Exhaust outlet;109:Driving wheel;110:Front-wheel;221:In first
Circumferential surface;222:Second inner peripheral surface;223:Bending section;A:Central axis;D:Dust;D1:Outer diameter;D2:Internal diameter;F:Ground;R1:It is empty
Gas;R2:Air;L1:Blade first area;L2:Blade second area.
Claims (11)
1. a kind of air-supply arrangement, has:
Impeller, the impeller can be around the central axis rotations vertically extended;
Motor part, the motor part are located at the downside of the impeller, the impeller are made to be rotated around central axis;And
Pipeline, the pipeline accommodate the impeller, and the pipeline has current path, makes described in fluid inflow in the interior space
The suction inlet of inner space and the blow-off outlet that fluid is discharged from the inner space,
The air-supply arrangement is characterized in that,
The impeller has:
Multiple blades, the multiple blade arrange in the circumferential;
Cricoid shield, the shield link the top of multiple blades, and opposed in the axial direction with the suction inlet
Position have opening portion;And
Substrate, the substrate link the lower part of multiple blades, and extend radially,
The pipeline has the cover portion of the top of at least part and the shield for covering the blade,
The internal diameter of the shield is more than or equal to the outer diameter of the substrate,
The cover portion has the first protrusion, and first protrusion is prominent from the lower surface of the cover portion towards axial downside, and matches
It is placed in the position that radially inner side is leaned on than the inner peripheral surface of the shield.
2. air-supply arrangement according to claim 1, which is characterized in that
The peripheral surface of first protrusion is opposed with the inner peripheral surface of the shield radially.
3. air-supply arrangement according to claim 2, which is characterized in that
Ratio is in the axial direction on the downside of axial direction for radial clearance between the peripheral surface and the inner peripheral surface of the shield of first protrusion
Side is wide.
4. air-supply arrangement according to any one of claim 1 to 3, which is characterized in that
The blade has:
Blade first area, the blade first area are located at the position that radial outside is leaned on than first protrusion;And
Blade second area, the blade second area is opposed with first protrusion in the up-down direction,
The upper end of the blade first area is located at the position more upper than the upper end of the radial outer end of the blade second area.
5. air-supply arrangement according to any one of claim 1 to 4, which is characterized in that
The blade has by the position of radial outside to protrusion outstanding on the upside of axial direction than first protrusion.
6. air-supply arrangement according to any one of claim 1 to 5, which is characterized in that
The lower end of the inner peripheral surface of the shield is roughly the same with the axial height of lower end of radial outer end of the first protrusion.
7. air-supply arrangement according to any one of claim 1 to 6, which is characterized in that
The radial outer end of the blade extends than the outer peripheral edge of the substrate to radial outside.
8. air-supply arrangement according to any one of claim 1 to 7, which is characterized in that
The radial inner end of the blade extends than the suction inlet to radially inner side.
9. air-supply arrangement according to any one of claim 1 to 8, which is characterized in that
The air-supply arrangement also has the motor shell positioned at the downside of the substrate,
The substrate has from the lower surface of the substrate towards downside substrate protruding portion outstanding,
The lower surface of axial gap between the lower end and the upper surface of the motor shell of the substrate protruding portion than the substrate
Axial gap between the upper surface of the motor shell is narrow.
10. air-supply arrangement according to claim 9, which is characterized in that
The substrate protruding parts in the radially outer edge of the substrate,
Be formed with groove portion on the upper surface of the motor shell, the groove portion in the up-down direction with the substrate protruding portion pair
It sets, and radial width is bigger than the radial width of the substrate protruding portion.
11. a kind of dust catcher, which is characterized in that
The dust catcher is had the right the air-supply arrangement described in any one of requirement 1 to 10.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016078953 | 2016-04-11 | ||
| JP2016-078953 | 2016-04-11 | ||
| PCT/JP2017/014450 WO2017179498A1 (en) | 2016-04-11 | 2017-04-07 | Blower device and cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108700084A true CN108700084A (en) | 2018-10-23 |
| CN108700084B CN108700084B (en) | 2020-07-14 |
Family
ID=60042418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780013657.3A Active CN108700084B (en) | 2016-04-11 | 2017-04-07 | Air supply device and dust collector |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20190290081A1 (en) |
| EP (1) | EP3444480A4 (en) |
| JP (1) | JPWO2017179498A1 (en) |
| CN (1) | CN108700084B (en) |
| WO (1) | WO2017179498A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608937A (en) * | 2019-02-25 | 2020-09-01 | 信浓绢糸株式会社 | Air blower |
| CN113074127A (en) * | 2020-01-06 | 2021-07-06 | 广东威灵电机制造有限公司 | Air supply device and dust collector |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2554762B (en) * | 2016-10-10 | 2020-04-01 | Aspen Pumps Ltd | Centrifugal pump flow modifier |
| JP6781685B2 (en) | 2017-11-22 | 2020-11-04 | シナノケンシ株式会社 | Blower |
| CN113048095A (en) * | 2019-12-27 | 2021-06-29 | 日本电产科宝电子株式会社 | Blower and respirator |
| JP2023067008A (en) * | 2021-10-29 | 2023-05-16 | 三星電子株式会社 | impeller and vacuum cleaner using the same |
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| US7883312B2 (en) * | 2005-03-31 | 2011-02-08 | Mitsubishi Heavy Industries, Ltd. | Centrifugal blower |
| JP4831811B2 (en) * | 2005-03-31 | 2011-12-07 | 三菱重工業株式会社 | Centrifugal blower |
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2017
- 2017-04-07 WO PCT/JP2017/014450 patent/WO2017179498A1/en active Application Filing
- 2017-04-07 EP EP17782314.3A patent/EP3444480A4/en not_active Withdrawn
- 2017-04-07 CN CN201780013657.3A patent/CN108700084B/en active Active
- 2017-04-07 JP JP2018511984A patent/JPWO2017179498A1/en active Pending
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2018
- 2018-09-21 US US16/137,574 patent/US20190290081A1/en not_active Abandoned
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|---|---|---|---|---|
| JPS5592100U (en) * | 1978-12-20 | 1980-06-25 | ||
| GB2283060A (en) * | 1993-10-20 | 1995-04-26 | Bosch Gmbh Robert | Minimising noise production in a fan |
| JPH10311294A (en) * | 1997-05-14 | 1998-11-24 | Matsushita Seiko Co Ltd | Centrifugal blower |
| US6224335B1 (en) * | 1999-08-27 | 2001-05-01 | Delphi Technologies, Inc. | Automotive air conditioning fan assembly |
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| CN111608937A (en) * | 2019-02-25 | 2020-09-01 | 信浓绢糸株式会社 | Air blower |
| CN113074127A (en) * | 2020-01-06 | 2021-07-06 | 广东威灵电机制造有限公司 | Air supply device and dust collector |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017179498A1 (en) | 2017-10-19 |
| EP3444480A1 (en) | 2019-02-20 |
| US20190290081A1 (en) | 2019-09-26 |
| JPWO2017179498A1 (en) | 2019-02-14 |
| EP3444480A4 (en) | 2019-12-04 |
| CN108700084B (en) | 2020-07-14 |
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