CN107191415A - Grid structure and fan with same - Google Patents
Grid structure and fan with same Download PDFInfo
- Publication number
- CN107191415A CN107191415A CN201710313609.8A CN201710313609A CN107191415A CN 107191415 A CN107191415 A CN 107191415A CN 201710313609 A CN201710313609 A CN 201710313609A CN 107191415 A CN107191415 A CN 107191415A
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- Prior art keywords
- cell structure
- grid
- air
- windward side
- lee face
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- 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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- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a grid structure and a fan with the same, wherein the grid structure comprises a windward surface (1) and a leeward surface (2) which are arranged oppositely, and a plurality of grid holes (3) which simultaneously penetrate through the windward surface (1) and the leeward surface (2), the windward surface (1) is in a three-dimensional surface shape formed by protruding towards a first direction, and the leeward surface (2) is in a three-dimensional surface shape formed by sinking towards the first direction. Compared with a plane grid structure which can only feed air from one direction vertical to the plane, the grid of the invention can ensure that the airflow can flow into the grid holes from more than one direction, so that the airflow enters the impeller through the grid at the optimal angle, thereby effectively preventing the condition that the airflow directly impacts the impeller behind the grid structure, reducing the airflow loss in the grid and effectively reducing the noise.
Description
Technical field
The invention belongs to household electrical appliance technical field, and in particular to a kind of cell structure and the fan with it.
Background technology
In the market thermantidote air-inlet grille is generally flat grid, i.e. horizontal cross and formed.Flat grid incoming air area is air intake
The area of mouth, will such as increase incoming air area, can only increase the area of flat grid, and air-flow impacts impeller, made an uproar directly by grid
Sound is larger, and children it is fond of play when easily by finger stretch into grate opening and cause to be crushed by wind wheel, security performance it is not high.
Because thermantidote of the prior art is present, air output is smaller, noise is larger and easily occurs the skills such as security incident
Art problem, therefore research and design of the present invention goes out a kind of cell structure and the fan with it.
The content of the invention
Therefore, noise when the technical problem to be solved in the present invention is to overcome the cell structure of the prior art there is air intake
Larger defect, so as to provide a kind of cell structure and the fan with it.
The present invention provides a kind of cell structure, and it includes the windward side being disposed opposite to each other and lee face and runs through institute simultaneously
Multiple grate openings of windward side and the lee face are stated, the windward side is towards three-dimensional surface formed by first direction protrusion
Shape, the lee face is also with three-dimensional planar formed by being recessed towards first direction.
Preferably, the size and shape all same of the windward side and the lee face, be three-dimensional arc surfaced structure,
And the lee face is wrapped in wherein by the windward side.
Preferably, the windward side and the lee face are dome shape structure.
Preferably, the cell structure is the rotary structure with rotary middle spindle, and the windward side is relative to described
Rotary middle spindle is symmetrical set, the lee face is symmetrical set relative to the rotary middle spindle, multiple grate openings
It is arranged symmetrically relative to the rotary middle spindle.
Preferably, in addition to multiple radial ribs, multiple radial ribs from the rotary middle spindle radially to
Radially set outside；Also include the annular rib of multiple circular in configuration, multiple annular ribs are with the revolution
Central shaft is that the center of circle is set in the form of concentric circles, and intersects between multiple radial ribs and form multiple grids
Hole.
Preferably, in each grate opening, between two relative radial ribs or two relative annulars
Spacing between rib is no more than 8mm.
The present invention also provides a kind of fan, and it includes foregoing cell structure, in addition to positioned at the cell structure air-flow
The air inlet of direction upstream, the wind wheel below the cell structure airflow direction.
Preferably, in addition to the wind wheel can be accommodated in the air channel for changing stream pressure and flow velocity wherein and wherein.
Preferably, in addition between the cell structure and the wind wheel it is used for the baffle liner for guiding air-flow.
Preferably, the fan is thermantidote.
A kind of cell structure that the present invention is provided and the fan with it have the advantages that：
1. the cell structure of the present invention and the fan with it, by the way that windward side is set to be protruded towards first direction
Formed by three-dimensional planar, the lee face is also configured as towards three-dimensional planar, Neng Gouyou formed by first direction depression
Effect ground forms the three-dimensional air intake structure of convex shape, can only be from a direction perpendicular to its plane compared to planar grille structure
For air intake, the grid of the present invention enables during air-flow flows into grate opening from more than one direction so that air-flow is with optimal corner
Degree impeller is entered by grid, effectively prevent air-flow directly impact cell structure rear impeller the occurrence of, subtract
Few air-flow loses in grid interior air-flow, significantly reduces noise；
2. the cell structure of the present invention and the fan with it, the three-dimensional air intake knot of above-mentioned convex shape by being formed
Structure, moreover it is possible to effectively so that the air-flow around windward side can not only enter inside cell structure from front, can also enter from side
Enter inside grid (and planar grille positive can only enter inside grid), therefore just effectively increase incoming air area, increase
Intake and wind speed is effectively improved, the air-flow on the outside of cell structure is entered the distance in grid face closer to inlet air mode
It is more gentle smooth；
3. the cell structure of the present invention and the fan with it, by inciting somebody to action in each grate opening, two relative institutes
State the spacing between radial ribs or between two relative annular ribs to be set to be no more than 8mm, strictly control grid
The gap width in hole, can effectively ensure safety, especially ensure that children's finger can not be stretched into grate opening, this be through
The experimental data that substantial amounts of experiment is just obtained has been crossed, the generation of potential safety hazard is effectively prevent.
Brief description of the drawings
Fig. 1 is the positive dimensional structure diagram of the cell structure of the present invention；
Fig. 2 is the structural representation in Fig. 1 A directions；
Fig. 3 is the structural representation of the positive grill portion of fan of the present invention；
Fig. 4 is the structural representation of the grill portion at the fan back side of the present invention；
Fig. 5 is the internal structure schematic diagram under the vertical view of the fan of the present invention.
Reference is expressed as in figure：
1-windward side, 2-lee face, 3-grate opening, 4-rotary middle spindle, 5-radial ribs, 6-annular rib,
7-cell structure, 8-air inlet, 9-wind wheel, 10-air channel, 11-baffle liner.
Embodiment
Embodiment 1
As shown in Figure 1-2, the present invention provides a kind of cell structure, and it includes the windward side 1 being disposed opposite to each other and lee face 2
(windward side fits with lee face and is connected) and simultaneously through the windward side 1 and multiple grate openings 3 of the lee face 2,
The windward side 1 is that, towards three-dimensional planar formed by first direction protrusion, the lee face 2 is also towards first direction depression
Formed by three-dimensional planar (first direction is to point to windward side from lee face, is preferably pointed to windward from the center of lee face
The center in face).So that the enough lee faces that three-dimensional planar is reached from the windward side of three-dimensional planar through hole of wind energy.
It is (including described to be directed away from by the way that windward side is provided towards into three-dimensional planar formed by first direction protrusion
Three-dimensional planar formed by the side protrusion of lee face), the lee face is provided towards formed by first direction depression
Three-dimensional planar (including with three-dimensional planar formed by the side depression towards the close windward side), can be effectively formed convex
The three-dimensional air intake structure of face shape, compared to planar grille structure can only for perpendicular to a direction air intake of its plane,
The grid of the present invention enables during air-flow flows into grate opening from more than one direction so that air-flow passes through grid with optimal angle
Into impeller, effectively prevent air-flow directly impact cell structure rear impeller the occurrence of, reduce air-flow in lattice
Grid interior air-flow is lost, and significantly reduces noise；Because air-flow is by grid first, such then just into impeller
It is designed with and preferably enters impeller beneficial to gas, reduce loss, corresponding noise can be also reduced.
The three-dimensional air intake structure of above-mentioned convex shape by being formed, moreover it is possible to effectively so that the air-flow around windward side not
But can enter from front inside cell structure, can also from side into inside grid (and planar grille can only front enter to accord with regular rules
Inside grid), during grate opening can be flowed into from more than one direction, incoming air area is effectively increased, intake is increased and has
Wind speed is improved to effect, the air-flow on the outside of cell structure is entered the distance in grid face closer to inlet air mode is more gentle smooth.Cause
Arched upward for grid to center, there is an effect of a wind gathering, center wind speed is big, peripheral wind speed relatively gentle inflow impeller.
Preferably, the size and shape all same of the windward side 1 and the lee face 2, be three-dimensional arc surfaced knot
Structure, and the lee face 2 is wrapped in wherein by the windward side 1.The size shape all same of windward side and lee face and windward
Lee face is wrapped in wherein by face, and meet, lee face is three-dimensional arc surfaced structure, can be formed solid arc shape it is convex
Face cell structure so that stream air is more gentle smooth from the windward side air intake of cambered surface, efficiently reduces windage loss, drop
Low noise.
Preferably, the windward side 1 and the lee face 2 are dome shape structure.Windward side and lee face are respectively provided with
For the structure of dome shape, enable to air-flow along when entering grate opening perpendicular to contact surface, air-flow air inlet more it is gentle it is smooth,
Windage loss is reduced, and ensures that multiple different angles of maximum magnitude are presented in the air-flow entered at wind wheel, farthest
Air-flow is prevented to bring the larger situation of noise with single angle or relative narrow-angle or even when facing impact wind wheel directly, so that maximum journey
Reduce noise, it is ensured that air-flow peace and quiet are smoothly flowed degree.
As shown in Figure 1-2, operation principle：Machine exogenous wind enters internal body from the grid-like air inlet 8 of symmetrical both sides, by certainly
By flowing to cell structure 7 (i.e. convex grid), because convex grid is spherical structure, ambient wind can be entered accord with regular rules from side and front
Inside grid (flat grid positive can only enter).Incoming air area can be increased using raised dome shape air-inlet grille, wind is entered machine
It is inside more smooth, increase motor load, reduce motor speed, reduce complete machine noise, reach noise reduction purpose.Using the grid of dome shape
Mode, compared to flat grid, increases the incoming air area into grid, the outer crosswind of body is entered grid identity distance from closer to entering
Wind mode is more gentle smooth, can improve air quantity and reduction complete machine noise, improve tonequality.
Convex grid uses convex configuration, can increase incoming air area, allow air-flow to enter impeller by grid with optimal angle,
Reduce air-flow to lose in grid interior air-flow, increase intake, reduce noise, the favourable Energy Efficiency Ratio for improving impeller.Convex grid and shell
Body, which is joined directly together, to be connect, and every rib prevents children's finger from leading to from the gap no more than 8mm that centre is between radioactivity, rib
Grid is crossed, impeller is directly contacted and causes damage.
Scheme surveys checking by palm, and the improvement to noise is particularly evident, it is possible to decrease more than noise 1dB, air quantity and
Wind speed also has corresponding raising, referring to table 1.
Table 1
The novel in structural design, further noise optimized, air quantity, wind speed, make whole while guarantee complete machine original performance
More preferably, the body-sensing lifting to user is larger for machine tonequality.
Embodiment 2
The present embodiment is the further improvement made on the basis of embodiment 1, it is preferable that the cell structure be with
The rotary structure of rotary middle spindle 4, the windward side 1 is symmetrical set relative to the rotary middle spindle 4, the lee face
2 are symmetrical set relative to the rotary middle spindle 4, and multiple grate openings 3 are in symmetrical cloth relative to the rotary middle spindle 4
Put.This is the preferred constructive form of the cell structure of the present invention, by being set to the structure type of revolving body, and will be met
Wind face, lee face and grate opening are disposed as the form arrangement being centrosymmetric along rotary middle spindle, enable to cell structure
Two faces and grate opening be to be centrosymmetric along the centre of gyration so that the further farthest edge of stream air
The centre of gyration symmetrically air intake, so that air intake is more gentle and smooth, the gas for preventing air intake angle asymmetry and bringing
Flow resistance power and windage loss, so as to further reduce energy loss, efficiently reduce noise.
Embodiment 3
The present embodiment is the further improvement made on the basis of embodiment 2, it is preferable that also including multiple radial ribs
Bar 5, multiple radial ribs 5 are radially radially set from the rotary middle spindle 4；Also include it is multiple into
The annular rib 6 of annular shape, multiple annular ribs 6 are in the form of the rotary middle spindle 4 is in concentric circles for the center of circle
Set, and intersect between multiple radial ribs 5 and form multiple grate openings 3.This is the formation grid of the present invention
The preferred constructive form in hole, by the set-up mode of radial ribs and annular rib, can consecutive web (including radially and/
Or annular) between form the grate opening of cell structure, so because radial ribs with annular rib are relative to the centre of gyration
Axle centrosymmetric structure in a center of symmetry, therefore the grate opening formed is also to be in a center of symmetry relative to rotary middle spindle, in
It is that just can effectively ensure air intake along the centre of gyration symmetrically air intake so that air intake is more gentle and smooth, prevents air intake
Angle asymmetry and the gas-flow resistance and windage loss brought, so as to further reduce energy loss, are efficiently reduced
Noise.
Preferably, in each grate opening 3, between two relative radial ribs or two relative rings
Spacing between shape rib is no more than 8mm.By will be between two radial ribs relative in each grate opening or relative
Two annular ribs between spacing be set to be no more than 8mm, strictly control the gap width of grate opening, Neng Gouyou
Ensure safety, especially ensure that children's finger can not be stretched into grate opening to effect, this is to have passed through substantial amounts of experiment just to obtain
The experimental data obtained, effectively prevent the generation of potential safety hazard.
Embodiment 4
As in Figure 3-5, the present invention also provides a kind of fan, and it includes foregoing cell structure 7, in addition to positioned at described
The air inlet 8 (grid-like) of the airflow direction upstream of cell structure 7, the wind wheel 9 below the airflow direction of cell structure 7.
By the way that including foregoing cell structure, the three-dimensional air intake structure of convex shape can be effectively formed, compared to planar grille knot
Structure can only from for a direction air intake of its plane, the grid of the present invention enable air-flow from more than one direction
Flow into grate opening so that air-flow enters impeller with optimal angle by grid, effectively prevent air-flow and directly impacts grid
The impeller at structure rear the occurrence of, reduce air-flow grid interior air-flow lose, significantly reduce noise；Because air-flow
It is that, by grid, then just into impeller, such be designed with preferably enters impeller beneficial to gas, reduces loss first,
Corresponding noise can also be reduced.
The three-dimensional air intake structure of above-mentioned convex shape by being formed, moreover it is possible to effectively so that the air-flow around windward side not
But can enter from front inside cell structure, can also from side into inside grid (and planar grille can only front enter to accord with regular rules
Inside grid), during grate opening can be flowed into from more than one direction, incoming air area is effectively increased, intake is increased and has
Wind speed is improved to effect, the air-flow on the outside of cell structure is entered the distance in grid face closer to inlet air mode is more gentle smooth.Cause
Arched upward for grid to center, there is an effect of a wind gathering, center wind speed is big, peripheral wind speed relatively gentle inflow impeller.
Preferably, in addition to the wind wheel 9 can be accommodated in the air channel 10 for changing stream pressure and flow velocity wherein and wherein.
By setting air channel, enabling air-flow to flow wherein, and by the rotation of wind wheel air-flow can be raised speed wherein
And/or supercharging, so as to reach high pressure and/or the at a high speed purpose of air-supply.
Preferably, in addition between the cell structure 7 and the wind wheel 9 it is used for the baffle liner 11 for guiding air-flow.
By setting baffle liner in above-mentioned position, effect can be guided to the air-flow come in from cell structure, effectively prevent gas
Stream is run helter-skelter, and reduces windage loss, reduces noise.
Operation principle：The grid-like air inlets of 2- of the machine exogenous wind from symmetrical both sides enter internal body, by flowing freely into 1-
At convex grid, because the convex grids of 1- are spherical structure, ambient wind can enter grid inside from side and front, and (flat grid can only be just
Face entrance), then enter under the drainage of 3- baffle liners in 4- wind wheels, it is internally formed and distinguished and admirable is uniformly thrown away from air outlet in 5- air channels
Outside machine.
Preferably, the fan is thermantidote.This is the preferred constructive form of fan of the present invention, and ratio can be blown out by it
The lower cold wind of ambient temperature, it is comfortable nice and cool.
Those skilled in the art is it is easily understood that on the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.With
Only it is the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
On the premise of departing from the technology of the present invention principle, some improvement and modification can also be made, these improvement and modification also should be regarded as this
The protection domain of invention.
Claims (10)
1. a kind of cell structure, it is characterised in that：Including the windward side (1) being disposed opposite to each other and lee face (2) and while run through
The windward side (1) and multiple grate openings (3) of the lee face (2), the windward side (1) be towards first direction protrusion and
The three-dimensional planar of formation, the lee face (2) is also towards three-dimensional planar formed by first direction depression.
2. cell structure according to claim 1, it is characterised in that：The windward side (1) and the lee face (2) it is big
Small and shape all same, it is three-dimensional arc surfaced structure, and the lee face (2) is wrapped in wherein by the windward side (1).
3. the cell structure according to one of claim 1-2, it is characterised in that：The windward side (1) and the lee face
(2) it is dome shape structure.
4. the cell structure according to one of claim 1-3, it is characterised in that：The cell structure is with the centre of gyration
The rotary structure of axle (4), the windward side (1) is symmetrical set relative to the rotary middle spindle (4), the lee face
(2) it is symmetrical set relative to the rotary middle spindle (4), multiple grate openings (3) are relative to the rotary middle spindle (4)
It is arranged symmetrically.
5. cell structure according to claim 4, it is characterised in that：Also include multiple radial ribs (5), multiple footpaths
Radially radially set from the rotary middle spindle (4) to rib (5)；Also including multiple circular in configuration
Annular rib (6), multiple annular ribs (6) are that the center of circle is set in the form of concentric circles with the rotary middle spindle (4),
And intersect between multiple radial ribs (5) and form multiple grate openings (3).
6. the cell structure according to one of claim 1-5, it is characterised in that：It is relative in each grate opening (3)
Spacing between two radial ribs or between relative two annular ribs is no more than 8mm.
7. a kind of fan, it is characterised in that：Including the cell structure (7) described in one of claim 1-6, in addition to positioned at described
The air inlet (8) of cell structure (7) airflow direction upstream, the wind wheel (9) below the cell structure (7) airflow direction.
8. fan according to claim 7, it is characterised in that：Also include that the wind wheel (9) can be accommodated in wherein and at it
The middle air channel (10) for changing stream pressure and flow velocity.
9. the fan according to one of claim 7-8, it is characterised in that：Also include being located at the cell structure (7) and institute
Stating is used for the baffle liner (11) for guiding air-flow between wind wheel (9).
10. the fan according to one of claim 7-9, it is characterised in that：The fan is thermantidote.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710313609.8A CN107191415A (en) | 2017-05-05 | 2017-05-05 | Grid structure and fan with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710313609.8A CN107191415A (en) | 2017-05-05 | 2017-05-05 | Grid structure and fan with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107191415A true CN107191415A (en) | 2017-09-22 |
Family
ID=59874018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710313609.8A Withdrawn CN107191415A (en) | 2017-05-05 | 2017-05-05 | Grid structure and fan with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107191415A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139570A (en) * | 2018-08-24 | 2019-01-04 | 珠海格力电器股份有限公司 | Air inlet grille and fan |
| CN109990328A (en) * | 2017-12-29 | 2019-07-09 | 青岛海尔智能技术研发有限公司 | A kind of range hood and its fan assembly |
| WO2023098333A1 (en) * | 2021-11-30 | 2023-06-08 | 青岛海尔电冰箱有限公司 | Ripened object drawer for refrigeration apparatus and refrigeration apparatus |
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| WO2017041967A1 (en) * | 2015-09-10 | 2017-03-16 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Flow-conducting grille for arranging on a fan |
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| JP2010091119A (en) * | 2008-10-03 | 2010-04-22 | Panasonic Corp | Floor type air conditioner |
| US20100303617A1 (en) * | 2009-05-28 | 2010-12-02 | Chen Yung-Hua | Powerless diversion plate of a ceiling air-conditioning circulation machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990328A (en) * | 2017-12-29 | 2019-07-09 | 青岛海尔智能技术研发有限公司 | A kind of range hood and its fan assembly |
| CN109990328B (en) * | 2017-12-29 | 2023-12-26 | 青岛海尔智能技术研发有限公司 | Range hood and fan assembly thereof |
| CN109139570A (en) * | 2018-08-24 | 2019-01-04 | 珠海格力电器股份有限公司 | Air inlet grille and fan |
| WO2023098333A1 (en) * | 2021-11-30 | 2023-06-08 | 青岛海尔电冰箱有限公司 | Ripened object drawer for refrigeration apparatus and refrigeration apparatus |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170922 |
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| WW01 | Invention patent application withdrawn after publication |