CN110118201A - A kind of fan - Google Patents
A kind of fan Download PDFInfo
- Publication number
- CN110118201A CN110118201A CN201811109702.8A CN201811109702A CN110118201A CN 110118201 A CN110118201 A CN 110118201A CN 201811109702 A CN201811109702 A CN 201811109702A CN 110118201 A CN110118201 A CN 110118201A
- Authority
- CN
- China
- Prior art keywords
- cover
- rib
- flabellum
- air supply
- ring support
- 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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of fan provided by the invention, including front mesh enclosure and flabellum；The established angle of the flabellum is greater than 40 °, and the front mesh enclosure is set on the air supply direction of the flabellum；The front mesh enclosure includes the first cover and the second cover；Second cover is set on the outside of first cover, and first cover and second cover are coaxially disposed；First cover includes more first ribs radially extended along first cover, more first ribs are circumferentially distributed around the axis of first cover, second cover includes more the second ribs radially extended along second cover, more second ribs are circumferentially distributed around the axis of second cover, and first rib along air supply direction with a thickness of 3-20mm.Fan of the invention, structure is simple, can effectively promote air supply efficiency.
Description
Technical field
The present invention relates to aeration technology fields, more particularly, to a kind of fan.
Background technique
Fan is the device by electric drive to generate air-flow, and the interior flabellum configured rotates after powered up, is rotated with flabellum
Conversion is become a common practice to achieve the effect that enjoy the cool, cool down.Fan generally includes mesh enclosure, flabellum and nose assembly etc..Nose assembly to
Power is provided for flabellum, so that flabellum is rotated to produce air-flow, forms the wind for blowing to specific direction.
Mesh enclosure is enclosed in flabellum periphery, can play the role of security protection, and promotes wind speed and guiding to a certain extent.It is special
It is not the front mesh enclosure on air supply direction, under the action of flabellum air-supply, can be rotated together with flabellum.Current front mesh enclosure is main
There are two types of form, first is that metal iron net, commonly used in having the stand fan of oscillating function；But all-plastic mesh enclosure, commonly used in compared with
Low power seat fan.
The air quantity of the front mesh enclosure of above two type, metal iron net is big, but without the function of wind-guiding and promotion wind speed, plastics
Mesh enclosure can effectively promote wind speed, but can reduce air output, and two kinds of mesh enclosure can reduce air-supply effect and user experience；And
And the installation condition or shape of flabellum itself also will affect air-supply effect.
Summary of the invention
(1) technical problems to be solved
The present invention provides a kind of fans, can not be guaranteed simultaneously with solving air output and the air supply velocity of fan, effect of blowing
The low technical problem of rate.
(2) technical solution
In order to solve the above technical problems, according to an aspect of the present invention, providing a kind of fan, including front mesh enclosure and fan
Leaf；The established angle of the flabellum is greater than 40 °, and the front mesh enclosure is set on the air supply direction of the flabellum；The front mesh enclosure packet
Include the first cover and the second cover；Second cover is set on the outside of first cover, and first cover with it is described
The coaxial arrangement of second cover；
First cover includes more first ribs radially extended along first cover, more first ribs
Axis around first cover is circumferentially distributed, second cover include more radially extended along second cover
Two ribs, more second ribs are circumferentially distributed around the axis of second cover, and first rib is along air-supply side
To with a thickness of 3-20mm.
Further, the slip angle of the flabellum is β, wherein 15 °≤β≤25 °.
Further, first rib is greater than second rib along the thickness of air supply direction along the thickness of air supply direction
Degree.
Further, second rib is along air supply direction with a thickness of 1.5-3mm.
Further, first rib is plastics rib or metal rib.
Further, second rib is plastics rib or metal rib.
Further, first cover further includes first annular bracket and the second ring support；The second annular branch
The outer diameter of frame is greater than the outer diameter of the first annular bracket, and one end of any first rib and the first annular bracket connect
It connects, the other end is connect with second ring support, and the first annular bracket is parallel to each other with second ring support and sets
It sets, be top, second ring support as the bus of the frustum at bottom using the first annular bracket and be parallel to second ring
Angle between the plane of shape bracket is θ, wherein -15 °≤θ≤15 °.
Further, the outer diameter of first cover is the 1/4-3/4 of the second cover outer diameter.
Further, the interlude of first rib is towards the convex clockwise or counterclockwise of first cover
It rises, and the protrusion direction of more first ribs is identical.
Further, first cover is buckled on second cover.
(3) beneficial effect
A kind of fan proposed by the present invention, its advantages are mainly as follows:
Fan uses the flabellum of large torque, by the first cover comprising the first rib and includes the second rib in conjunction with front mesh enclosure
The second cover constitute, so that the first rib is maintained at suitable range along the thickness of air supply direction, there is the inside of fan
Straight air-out effect, meanwhile, front mesh enclosure can also promote air output, to promote fan while effectively promoting wind speed
Air supply efficiency；
Also, the rib of plastics or metal material can be used in the first rib and the second rib, and especially the first rib uses
Plastics rib can be obviously improved the wind speed and air quantity of fan when the second rib uses metal rib；
Its further by adjusting the first rib and the second rib along air supply direction thickness and the first cover first
Angle between ring support and the bus and the second ring support of the formed frustum structure of the second ring support is further promoted
The wind speed of fan, and then further promote the air supply efficiency of fan.
Detailed description of the invention
Fig. 1 is the front view according to a kind of front mesh enclosure of fan of the embodiment of the present invention；
Fig. 2 is the side view according to a kind of flabellum of fan of the embodiment of the present invention；
Fig. 3 is the front view according to a kind of the first cover of the front mesh enclosure of fan of the embodiment of the present invention；
Fig. 4 is the A-A cross-sectional view according to a kind of Fig. 3 of the front mesh enclosure of fan of the embodiment of the present invention；
Fig. 5 is the front view according to a kind of the second cover of the front mesh enclosure of fan of the embodiment of the present invention；
Fig. 6 is the front view according to a kind of front mesh enclosure of fan of the embodiment of the present invention；
Fig. 7 is the front view according to a kind of front mesh enclosure of fan of the embodiment of the present invention；
In figure, the first annular bracket of 1-；The second ring support of 2-；The first rib of 3-；The second rib of 4-；5- third annular branch
Frame；6- fourth annular bracket；The first cover of 7-；The second cover of 8-；9- flabellum.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Referring to figure 1 and figure 2, a kind of fan, including front mesh enclosure and flabellum；The established angle of flabellum is greater than 40 °, front mesh enclosure
It is set on the air supply direction of flabellum；Front mesh enclosure includes the first cover 7 and the second cover 8；Second cover 8 is set in the first cover
7 outsides, and the first cover 7 and the second cover 8 are coaxially disposed；
First cover 7 includes more first ribs 3 radially extended along the first cover 7, and more first ribs 3 surround first
The axis of cover 7 is circumferentially distributed, the second cover 8 include more the second ribs 4 radially extended along the second cover 8, more second
Rib 4 around the second cover 8 axis it is circumferentially distributed, and the first rib 3 along air supply direction with a thickness of 3-20mm.
When the first rib 3 is greater than 3mm and is less than 20mm along the thickness of air supply direction, passed through by the wind of flabellum blowout
It crosses after the reflection of the first rib 3, forms wind gathering area on air supply direction." convergence wind " cooperation that such first rib 3 is blown out
" the common wind " of second rib 4 blowout can be used the wind type that multiplicity is experienced at family, increase the differentiation attraction of product.In addition,
First rib 3 cannot be too small along the thickness of air supply direction, and when the thickness is less than 3mm, the barrier effect of the first rib 3 is non-
It is often faint, lose wind gathering effect；Meanwhile first the thickness of rib cannot be excessive, otherwise will affect the normal outlet air of fan, not only
Increase cost, and will increase noise, noise is also that user is intolerable.
Specifically, fan further includes rear net cover and nose assembly.Front mesh enclosure is connected with rear net cover, makes front mesh enclosure and rear net cover
Between form a cavity, multi-disc flabellum 9 is installed in the cavity.Nose assembly is mounted on rear net cover, and with 9 phase of flabellum
Even, to drive flabellum 9 to rotate, the wind blown out towards front mesh enclosure is generated.Wherein, the quantity of flabellum 9 is 3 or 5；According to fan
Specification or design requirement, the quantity of flabellum 9 can also carry out adjustment appropriate, fan also can have the flabellum 9 of other quantity.
Further, the second cover 8 is preferably disc-shaped structure, and it is with central through hole, centered on making the second cover 8
Cirque structure with through-hole；First cover 7 is preferably also disc-shaped structure, the sizableness of size and central through hole.
When first cover 7 is mounted at central through hole, the first cover 7 can cover conjunction at central through hole, be set in the second cover 8
The outside of first cover 7, also, the first cover 7 and the coaxial arrangement of the second cover 8.It the periphery of first cover 7 can be with the second cover
The inner circumferential of body 8 contacts, and the two is formed by connecting as front mesh enclosure.When at the central through hole that the first cover 7 is mounted on the second cover 8,
It is preferred that the first cover 7 is arranged concentrically with the second cover 8, and the first cover 7 and the second cover 8 are located at the same side of flabellum 9, equal position
In on the air supply direction of fan.
First cover 7 includes more first ribs 3.More first ribs 3 are circumferentially distributed around the center of the first cover 7；
It is uniformly distributed it is preferred that the first rib 3 is circumferential.Also, there is gap, which is the between any adjacent two first rib 3
One air duct.Second rib 4 of the second cover 8 is circumferentially distributed around the center of the second cover 8；It is preferred that the second rib 4 is circumferential uniformly
Distribution.Also, there is gap, which is also the second air duct between any adjacent two second rib 4.
When the first cover 7 and the second cover 8 are coaxially disposed, the second rib 4 of the second cover 8 is also to surround the first cover
7 axis is circumferentially distributed.The air-supply of the flabellum 9 of fan is sent by sending out in the first air duct and the second air duct to air-supply object
Wind.
Wherein, the first rib keeps that in the range, 7 region of the first cover can be significantly increased along the thickness of air supply direction
Wind gathering effect and guiding role to air-supply, form wind gathering area.It is excellent along the width perpendicular to air supply direction for the first rib 3
Choosing is maintained at 1.5-3mm, keeps the first rib flat, while enhancing wind gathering and guide effect, increases duct space, drop
Low wind loss.
It is preferred that the first rib 3 is greater than the first rib 3 along the width perpendicular to air supply direction along the thickness of air supply direction, make the
One rib 3 is flat.First rib 3 is relatively large along the thickness of air supply direction, can limit the diffusion of wind direction surrounding, so that the
One air duct has stronger guiding role and wind gathering effect；Simultaneously as supply air duct is divided into multiple first by the first rib 3
Air duct, the first cover 7 also have the function of improving wind speed；Also, the air duct that the gap between adjacent first rib 3 is formed may be used also
To change blowing range.
Compared to the first rib 3, the second rib 4 is smaller along the thickness of air supply direction, alternatively, the second rib 4 is along air-supply side
To thickness and perpendicular to the width of air supply direction it is smaller, keep the second rib 4 relatively thin, the loss of air quantity can be reduced,
To improve the air quantity of fan air-supply, have the effect of relieve heat, forms relieve heat area.Front mesh enclosure first rib thicker using thickness
3 and the structure that matches of the second relatively thin rib 4, while wind speed can be effectively improved, air output is also improved, increase is sent
Wind distance can improve user's blowing experience with fast cooling.
Front mesh enclosure is arranged on the air supply direction of flabellum 9, and the axis and air supply direction of the first cover 7 and the second cover 8 are flat
Capable or less parallel.Shown in Figure 2, the established angle α at 9 blade root of flabellum is greater than 40 °, and cooperates the preceding net of above structure
Cover, fan can further enhance air output when blowing to user.Fan of the invention other constitute and operate for
All be for those of ordinary skill in the art it is known, details are not described herein again.
Wherein, the first rib keeps that in the range, 7 region of the first cover can be significantly increased along the thickness of air supply direction
Wind gathering effect and guiding role to air-supply, form wind gathering area.It is excellent along the width perpendicular to air supply direction for the first rib 3
Choosing is maintained at 1.5-3mm, keeps the first rib flat, while enhancing wind gathering and guide effect, increases duct space, drop
Low wind loss.
On the basis of the above embodiments, the slip angle at flabellum blade root is β, wherein 15 °≤β≤25 °.With any fan
It is illustrated for the structure of leaf 9.Wherein, shown in Figure 2, the slip angle of flabellum 9 is the inflow angle b of flabellum 91With work off one's feeling vent one's spleen
Flow angle b2Difference.The established angle of flabellum 9 and slip angle are maintained at suitable range, so that flabellum 9 is had high torque, then cooperate
The structure of front mesh enclosure makes the inside of fan have straight air-out effect, and under the action of front mesh enclosure promotes wind speed and air quantity, energy
It is enough obviously improved the air-out effect of fan, makes fan that there is big wind speed Wind Volume air-out effect.
On the basis of the above embodiments, the first rib is greater than the second rib along air supply direction along the thickness of air supply direction
Thickness.And specifically, it is preferable to the first rib 3 is greater than the first rib 3 along the width perpendicular to air supply direction along the thickness of air supply direction,
Keep the first rib 3 flat.First rib 3 is relatively large along the thickness of air supply direction, can limit the diffusion of wind direction surrounding, make
Obtaining the first air duct has stronger guiding role and wind gathering effect；Simultaneously as the first rib 3 supply air duct is divided into it is multiple
First air duct, the first cover 7 also have the function of improving wind speed；Also, the air duct that the gap between adjacent first rib 3 is formed
Blowing range can also be changed.
Compared to the first rib 3, the second rib 4 is smaller along the thickness of air supply direction, alternatively, the second rib 4 is along air-supply side
To thickness and perpendicular to the width of air supply direction it is smaller, keep the second rib 4 relatively thin, the loss of air quantity can be reduced,
To improve the air quantity of fan air-supply.Front mesh enclosure is located on the air supply direction of electric fan, the first cover 7 and the second cover 8
Axis is parallel with air supply direction or less parallel.
In a specific embodiment, the second rib 4 is preferably 1.5-3mm along the thickness of air supply direction.Above-mentioned each
On the basis of embodiment, the present embodiment illustrates the structure of the second rib 4.Specifically, the second rib 4 can for column structure or
Person is greater than along air supply direction thickness along the flat structure perpendicular to air supply direction width, by the diameter for regulating and controlling the second rib 4
Or the thickness along air supply direction, the relieve heat effect of the second cover 8 can be further promoted, relieve heat area is formed, promotes air quantity.Using
The structure that the first thicker rib 3 of thickness and the second relatively thin rib 4 match, while wind speed can be effectively improved,
Also air output is improved, air supplying distance is increased, user's blowing experience can be improved with fast cooling.
In a specific embodiment, the first rib 3 is plastics rib or metal rib.In another specific implementation
In example, the second rib 4 is plastics rib or metal rib.Wherein, preferably the first rib 3 is plastics rib, and the second rib 4 is gold
Belong to rib.Compared to the rib of metal material, wind gathering area uses the rib of plastic material, can further enhance wind gathering effect.
In conjunction with the second rib 4 of the first rib 3 and metal material using plastic material, the wind gathering effect in wind gathering area can be further enhanced
The air quantity in fruit and relieve heat area promotes effect.Wherein, when the first rib 3 or the second rib 4 are metal rib, metal species are not made
Particular requirement, as long as its intensity can satisfy the stability and safe handling of air supply process.
On the basis of the various embodiments described above, the first cover 7 further includes first annular bracket 1 and the second ring support 2；The
The outer diameter of second ring bracket 2 is greater than the outer diameter of first annular bracket 1, and one end of any first rib 3 and first annular bracket 1 connect
It connects, the other end is connect with the second ring support 2, and first annular bracket 1 and the second ring support 2 are arranged in parallel, with first
Ring support 1 be top, the frustum that the second ring support 2 is bottom bus and be parallel between the plane of the second ring support 2
Angle is θ, wherein -15 °≤θ≤15 °.
Specifically, shown in Figure 3, the first cover 7 further includes first annular bracket 1 and the second ring support 2.First ring
Shape bracket 1 can be the ring structure that disk structure or center have hollow duct, can be adjusted according to fixed or decoration demand
It is whole.With the ring structure in hollow duct centered on second ring support 2.First annular bracket 1 and the second ring support 2 are preferably
Coaxial arrangement；And second ring support 2 outer diameter be greater than first annular bracket 1 outer diameter.Also, first annular bracket 1 and
Second ring bracket 2 is preferably parallel to each other setting.
First rib 3 includes first end and the second end, and first end is close to the center of the first cover 7, the second end
Center far from the first cover 7.First rib 3 is i.e. between first annular bracket 1 and the second ring support 2, and any first
The first end of rib 3 is connect with first annular bracket 1, and the second end is connect with the second ring support 2.
Further, the first annular bracket 1 of coaxial arrangement and the second ring support 2 may make up with first annular bracket 1
End face be top surface, using the end face of the second ring support 2 as the frustum structure of bottom surface.It is shown in Figure 4, the bus of frustum structure
Be parallel to the second ring support 2 plane between angle be θ.
It should be noted that first annular bracket 1 and the second ring support 2 are coaxial arrangement, and are set with one heart when θ is 0
It sets.Second ring support 2 is sheathed on first annular 1 outside of bracket.When θ is not 0, then first annular bracket 1 is relative to second
Ring support 2 is the structure of concave or convex.For example, with reference to shown in Fig. 4, the Section A-A figure of the first cover 7 is trapezium structure.
When it is positive with direction x-axis straight up, with direction to the left and when y-axis forward direction, then when 0 < θ≤15 °, first annular bracket
1 is recessed to the direction close to flabellum 7 relative to the second ring support 2, when -15 °≤θ < 0 °, first annular bracket 1 relative to
Second ring support 2 is protruded to the direction far from flabellum 7.
Wherein, it when θ is not 0, is formed by the bus of frustum structure and is parallel between the plane of the second ring support 2
Angle be maintained at suitable range, can further be obviously improved 7 wind-guiding of the first cover and improve wind speed effect.
It is understood that the second cover 8 can further include the third ring support 5 and fourth annular bracket 6 of coaxial arrangement.
Shown in Figure 5, the outer diameter of fourth annular bracket 6 is greater than the outer diameter of third ring support 5.One end of second rib 4 and third
Ring support 5 connects, and the other end is connect with fourth annular bracket 6.Third ring support 5 can be connect with the second ring support 2；Its
Connection type can be realized by the modes such as being spirally connected, riveting or be clamped, and the first cover 7 and the second cover 8 are linked together, shape
At front mesh enclosure.Wherein, third ring support and/or fourth annular bracket are not required setting, can be arranged according to actual needs.Example
Such as, one end of the second rib is connect with fourth annular bracket, and the other end can directly be connect with the second ring support 2.
On the basis of the various embodiments described above, the outer diameter of the first cover 7 is the 1/4-3/4 of 8 outer diameter of the second cover.When first
When the outer diameter of cover 7 is the 1/4-3/4 of 8 outer diameter of the second cover, by the wind of flabellum blowout after the reflection of the first rib 3,
Wind gathering area is formed on air supply direction, " convergence wind " second rib 4 of cooperation that such first rib 3 is blown out blows out " common
Wind " can be used the wind type that multiplicity is experienced at family, increase the differentiation attraction of product.But when the outer diameter of the first cover 7 is big
When the 3/4 of 8 outer diameter of the second cover, the wind of such fan blowout is largely " convergence wind "；When the outer diameter of the first cover 7 is less than
Second cover, 8 outer diameter 1/4 when, fan blowout wind major part when " common wind ", not will use family in this way and experience multiplicity
Wind type.
Specifically, by regulating and controlling the outer diameter of the first cover 7 and the second cover 8, make the cover area and second of the first cover 7
The cover area ratio of cover 8 is maintained at suitable range, can effectively reduce front mesh enclosure material, and can further be promoted
Adjusting of the front mesh enclosure for air-supply air quantity and wind speed while making to improve wind speed, effectively promotes air output, avoids the damage of air quantity
It loses.
In a specific embodiment, the side clockwise or counterclockwise of interlude the first cover of direction of the first rib 3
To protrusion, and the protrusion direction of more first ribs 3 is identical.On the basis of the various embodiments described above, the present embodiment is illustrated
The structure of first rib 3.Specifically, as the feasible mode of one of which of 3 structure of the first rib, for example, the first rib 3 can
For arc strip.Referring to shown in Fig. 1 and Fig. 6, when the interlude of the first rib is along the protrusion clockwise of the first cover 7, i.e.,
Form left-handed acceleration net；When the interlude of the first rib is along the counterclockwise protrusion of the first cover 7, that is, form dextrorotation acceleration
Net.When the first rib 3 is curve strip, while playing guiding and promoting wind speed, the structure of 3 curve strip of the first rib
The form that can also be conducive to change air-supply, makes air-supply have different wind directions, avoids directly blowing to human body, can enhance human body
Comfort level.Its structure is simple, enhancing human body blowing experience, moreover it is possible to play the role of decoration, promote perception, and can prevent user
Finger is put in fan during fan running, reduces security risk.The shape of first rib 3 can according to safety, decoration,
Production convenience etc. factor is adjusted.
On the basis of the various embodiments described above, the first rib 3 is vertical bar shape.For example, with reference to shown in Fig. 1, Fig. 6 and Fig. 7, divide
Not Wei the first rib 3 three kinds of feasible modes.Wherein, when the first rib is vertical bar shape, structure is shown in Figure 7.Tool
Body, since the first rib 3 has certain thickness along air supply direction, and there is gap between adjacent two first ribs 3, with
Form the first air duct.Then there is certain length, energy along air supply direction by the first air duct that adjacent two first ribs 3 are formed
Enough limitation wind direction surrounding diffusions.
In a specific embodiment, the first cover is buckled on the second cover.Specifically, the periphery of the first cover 7
It is contacted with the inner circumferential of the second cover 8.As one of achievable mode, when the first cover 7 has the second ring support 2,
When second cover 8 has third ring support 5, using the side towards first annular 1 axis of bracket as inside, backwards to the one of axis
Side is outside；Multiple card slots can be set in the inside of third ring support 5, be correspondingly arranged in the outside of the second ring support 2 more
A buckle or protrusion.It is when the first cover 7 to be buckled on the second cover 8, the buckle of the second ring support 2 or protrusion is corresponding
It is sticked in the card slot of 5 inside of third ring support.
It is preferred that along air supply direction snapping.Using front mesh enclosure close to flabellum one side as the back side, far from flabellum one side be front,
I.e. snapping when, the first cover 7 from the back side of front mesh enclosure to front movement to be sticked on the second cover 8, when disassembly, the first cover
7 are rearwardly moved by the front of front mesh enclosure with card and on the second cover 8.As the optional way for realizing above-mentioned snap fit,
Wedge groove can be used in the card slot of 5 inside of third ring support, and accordingly, wedge shape can be used in the protrusion in 2 outside of the second ring support
Protrusion.It is understood that corresponding buckle or protrusion are arranged in third ring when card slot setting is in 2 outside of the second ring support
When shape 5 inside of bracket, snapping direction is reversed.Using this kind of mode, snap fit is simple, is easy to disconnect.Also, correspondence is set
Snapping direction is set, the stability combined conducive to the first cover 7 and the second cover 8.It is understood that the first cover 7 and second
Cover 8 be also possible to it is integrally formed, and by the way of two cover snappings, convenient for forming the front mesh enclosure of different size.
Fan of the invention makes flabellum have high torque, makes preceding net by the established angle of flabellum and the regulation at slip angle
It covers the first rib and is maintained at suitable range along the thickness of air supply direction, the first rib is greater than the second muscle along the thickness of air supply direction
Item and makes the ratio between the first cover and the outer diameter of the second cover be maintained at suitable range along the thickness of air supply direction, makes fan
Inside has straight air-out effect, and can significantly increase the air output and air-supply wind speed of fan, meanwhile, by making the first rib
Both ends be located in Different Plane, that is, make first annular bracket relative to the second ring support to close to flabellum direction it is recessed
It is protruded into or to the direction far from flabellum, further promotes the air supply velocity of front mesh enclosure.
For example, all using the mesh enclosure one and front mesh enclosure of the second bead structures with front mesh enclosure using fan of the invention
It is all compared using the mesh enclosure two of the first bead structures, test result is as follows:
| Test prototype | Air quantity | Maximum wind velocity | Power | Efficiency | Revolving speed | Noise |
| Fan of the invention | 58.1 | 211.22 | 24 | 2.541 | 900 | 54.71 |
| Has the fan of mesh enclosure one | 62.55 | 187.76 | 25.7 | 2.434 | 900 | 55.86 |
| Has the fan of mesh enclosure two | 56.8 | 259.65 | 26.66 | 2.131 | 915 | 56.5 |
Finally, method of the invention is only preferable embodiment, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (10)
1. a kind of fan, which is characterized in that including front mesh enclosure and flabellum；The established angle of the flabellum is greater than 40 °, the front mesh enclosure
It is set on the air supply direction of the flabellum；The front mesh enclosure includes the first cover and the second cover；Second cover is arranged
On the outside of first cover, and first cover and second cover are coaxially disposed；
First cover includes more first ribs radially extended along first cover, and more first ribs surround
The axis of first cover is circumferentially distributed, and second cover includes more the second muscle radially extended along second cover
Item, more second ribs are circumferentially distributed around the axis of second cover, and first rib is along air supply direction
With a thickness of 3-20mm.
2. fan according to claim 1, which is characterized in that the slip angle of the flabellum is β, wherein 15 °≤β≤
25°。
3. fan according to claim 1, which is characterized in that first rib is greater than described along the thickness of air supply direction
Thickness of second rib along air supply direction.
4. fan according to claim 1, which is characterized in that second rib is along air supply direction with a thickness of 1.5-
3mm。
5. fan according to claim 1, which is characterized in that first rib is plastics rib or metal rib.
6. fan according to claim 1 or 5, which is characterized in that second rib is plastics rib or metal rib.
7. fan according to claim 1, which is characterized in that first cover further includes first annular bracket and second
Ring support；The outer diameter of second ring support is greater than the outer diameter of the first annular bracket, any first rib
One end is connect with the first annular bracket, and the other end is connect with second ring support, the first annular bracket and institute
It states that the second ring support is arranged in parallel, is top, second ring support as the frustum at bottom using the first annular bracket
Bus and be parallel to second ring support plane between angle be θ, wherein -15 °≤θ≤15 °.
8. fan according to claim 1-7, which is characterized in that the outer diameter of first cover is described second
The 1/4-3/4 of cover outer diameter.
9. fan according to claim 1, which is characterized in that the interlude of first rib is towards first cover
It is raised clockwise or counterclockwise, and the protrusion direction of more first ribs is identical.
10. fan according to claim 1, which is characterized in that first cover is buckled on second cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/082218 WO2020057110A1 (en) | 2018-09-21 | 2019-04-11 | Front net cover of fan and fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018101216660 | 2018-02-07 | ||
| CN201810121666.0A CN108194394A (en) | 2018-02-07 | 2018-02-07 | The front mesh enclosure of fan and with its fan |
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| Publication Number | Publication Date |
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| CN110118201A true CN110118201A (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810121666.0A Pending CN108194394A (en) | 2018-02-07 | 2018-02-07 | The front mesh enclosure of fan and with its fan |
| CN201821557934.5U Active CN208764000U (en) | 2018-02-07 | 2018-09-21 | Fan front mesh enclosure and fan with the front mesh enclosure |
| CN201811109702.8A Pending CN110118201A (en) | 2018-02-07 | 2018-09-21 | A kind of fan |
| CN201821567524.9U Active CN208793332U (en) | 2018-02-07 | 2018-09-21 | Fan front mesh enclosure and fan with the front mesh enclosure |
| CN201811110653.XA Pending CN110118204A (en) | 2018-02-07 | 2018-09-21 | Fan front mesh enclosure and fan with the front mesh enclosure |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810121666.0A Pending CN108194394A (en) | 2018-02-07 | 2018-02-07 | The front mesh enclosure of fan and with its fan |
| CN201821557934.5U Active CN208764000U (en) | 2018-02-07 | 2018-09-21 | Fan front mesh enclosure and fan with the front mesh enclosure |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821567524.9U Active CN208793332U (en) | 2018-02-07 | 2018-09-21 | Fan front mesh enclosure and fan with the front mesh enclosure |
| CN201811110653.XA Pending CN110118204A (en) | 2018-02-07 | 2018-09-21 | Fan front mesh enclosure and fan with the front mesh enclosure |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194394A (en) * | 2018-02-07 | 2018-06-22 | 广东美的环境电器制造有限公司 | The front mesh enclosure of fan and with its fan |
| CN209557343U (en) * | 2018-12-29 | 2019-10-29 | 广东美的环境电器制造有限公司 | Outlet air wind scooper, axial flow blower ducting assembly and fan |
| CN111622992A (en) * | 2019-02-28 | 2020-09-04 | 施耐德电气It公司 | Fan cover |
| TWI725683B (en) * | 2019-12-24 | 2021-04-21 | 建準電機工業股份有限公司 | Impeller and cooling fan including the same |
| CN114382708B (en) * | 2020-10-19 | 2024-02-27 | 广东美的环境电器制造有限公司 | Air supply assembly and fan |
| CN112628218A (en) * | 2020-12-31 | 2021-04-09 | 珠海格力电器股份有限公司 | Fan head assembly and fan |
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- 2018-09-21 CN CN201821557934.5U patent/CN208764000U/en active Active
- 2018-09-21 CN CN201811109702.8A patent/CN110118201A/en active Pending
- 2018-09-21 CN CN201821567524.9U patent/CN208793332U/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN208764000U (en) | 2019-04-19 |
| CN108194394A (en) | 2018-06-22 |
| CN208793332U (en) | 2019-04-26 |
| CN110118204A (en) | 2019-08-13 |
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Application publication date: 20190813 |