CN109281853A - Tower fan - Google Patents
Tower fan Download PDFInfo
- Publication number
- CN109281853A CN109281853A CN201811419432.0A CN201811419432A CN109281853A CN 109281853 A CN109281853 A CN 109281853A CN 201811419432 A CN201811419432 A CN 201811419432A CN 109281853 A CN109281853 A CN 109281853A
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- Prior art keywords
- screen
- plane
- tower fan
- tower
- air
- 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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- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The present invention provides a kind of tower fans, it include: air outlet grate, air outlet grate includes multiple spaced screens, an air duct is formed between two neighboring screen, air duct has tunnel inlet and ducting outlet, air duct includes the flared section that edge is gradually increased by the direction of ducting outlet to tunnel inlet, and flared section is located at the position of tunnel inlet.The present invention solves the cross-sectional area of the screen of tower fan in the prior art in rectangle, the problem that the air output for causing tower to be fanned is small and air supply efficiency is low.
Description
Technical field
The present invention relates to fields of home appliance technology, fan in particular to a kind of tower.
Background technique
The air outlet grate of tower fan includes multiple spaced screens in the prior art, and the cross-sectional area of each screen is in rule
Rectangle then, the distance between two adjacent screens are equal everywhere, the opening area of tunnel inlet and the opening of ducting outlet
Area is identical, and screen in the prior art will lead to that fan resistance is larger, and the air output so as to cause tower fan is small and air-supply effect
Rate is low.
Summary of the invention
The main purpose of the present invention is to provide a kind of tower fans, to solve the cross-sectional area of the screen of tower fan in the prior art
In rectangle, lead to the problem that the air output of tower fan is small and air supply efficiency is low.
To achieve the goals above, the present invention provides a kind of tower fans, comprising: air outlet grate, air outlet grate include multiple
Spaced screen, forms an air duct between two neighboring screen, and air duct has tunnel inlet and ducting outlet, air duct packet
It includes along the flared section being gradually increased by the direction of ducting outlet to tunnel inlet, and flared section is located at the position of tunnel inlet.
Further, the opening area of tunnel inlet is greater than the opening area of ducting outlet.
Further, the cross-sectional area of screen is arranged in D type.
Further, tower is fanned further include: shell, the air outlet that shell has accommodating chamber and is connected with accommodating chamber, outlet air
Grid is arranged at air outlet；Wind wheel, wind wheel are rotatably arranged in accommodating chamber；Screen includes sequentially connected first bent
Face, the first inclined-plane, the second curved surface and the second inclined-plane, wherein first surface is located at close to the side of wind wheel；The first of one screen
Wind path wall of first inclined-plane of curved surface, the second inclined-plane and another screen adjacent thereto as air duct, and the of a screen
First inclined-plane of one curved surface and another screen adjacent thereto is used to form flared section.
Further, the first surface of a screen and a point on the first inclined-plane intersecting lens and adjacent thereto another
The distance between the first surface of a screen point corresponding with one on the first inclined-plane intersecting lens is b, the second of a screen
One end of the separate first surface on first inclined-plane of one end and another screen adjacent thereto of the separate first surface on inclined-plane
The distance between be a, wherein b > a.
Further, 0 < b-a≤15mm.
Further, the first inclined-plane tilts from first surface to the direction of the second curved surface and extends, and the first inclined-plane and vertical
Slanted angle α between direction is greater than 0 ° and is less than or equal to 10 °.
Further, the second inclined-plane extends along tilting from first surface to the direction of the second curved surface, and the second inclined-plane and perpendicular
Slanted angle β of the histogram between is greater than 0 ° and is less than or equal to 10 °.
Further, first surface and the second inclined-plane are tangent.
Further, the junction on first surface and the first inclined-plane forms chamfering structure；And/or second curved surface and first tiltedly
The junction in face forms chamfering structure；And/or second the junction on curved surface and the second inclined-plane form chamfering structure.
Further, multiple screens are along camber line arranged for interval, and the second curved surface of each screen is same first arc surface
The endpoint towards wind wheel of part of the surface, the first surface of each screen is respectively positioned on the second arc surface, the first arc surface and second
Arc surface is arranged concentrically.
Further, the distance between two neighboring screen is gradually increased along the rotation direction of wind wheel.
It applies the technical scheme of the present invention, changes the shape of screen, wrap the air duct formed between two neighboring screen
Flared section is included, along being gradually increased by the direction of ducting outlet to tunnel inlet, i.e. the direction of screen expands the opening area of flared section
The streamlined design in surface of mouth section, increases the opening area of tunnel inlet, reduces fan resistance, can there is more wind
It is conveyed outward by air duct, thus make tower fan provided by the present application compared with the tower of same specification in the prior art fan, air output
Bigger, air supply efficiency is higher；Simultaneously as each screen is smaller to the resistance of air-supply, so that ducting outlet goes out wind velocity and wind
The intake velocity of road entrance is compared, and wind speed drop is smaller, and reduce tower fan uses noise, improves the operation sound quality of tower fan,
Improve user experience good opinion.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows a kind of structural schematic diagram of the tower fan of alternative embodiment according to the present invention；
Fig. 2 shows the enlarged structure schematic diagrams at A in Fig. 1；
Fig. 3 shows the structural schematic diagram of the screen of the tower fan of Fig. 1；
Fig. 4 shows a kind of air-supply effect emulation schematic diagram of the tower fan of alternative embodiment of the invention of Fig. 1；
Fig. 5 shows the air-supply effect emulation schematic diagram of tower fan in the prior art.
Wherein, the above drawings include the following reference numerals:
10, screen；11, first surface；12, the second curved surface；13, the first inclined-plane；14, the second inclined-plane；20, air duct；201,
Flared section；21, tunnel inlet；22, ducting outlet；30, shell；31, accommodating chamber；32, air outlet；40, wind wheel.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.It is right below
The description only actually of at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or use
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, shall fall within the protection scope of the present invention.
It is in rectangle to solve the cross-sectional area of the screen of tower fan in the prior art, the air output for causing tower to be fanned is small and send
The problem of wind low efficiency, the present invention provides a kind of tower fans.
As shown in Figures 1 to 3, tower fan includes air outlet grate, and air outlet grate includes multiple spaced screens 10, and adjacent two
An air duct 20 is formed between a screen 10, air duct 20 has tunnel inlet 21 and ducting outlet 22, and air duct 20 includes along by wind
The flared section 201 that road outlet 22 is gradually increased to the direction of tunnel inlet 21, and flared section 201 is located at the position of tunnel inlet 21
Place.
In application, the shape of screen 10 is changed, making the air duct 20 formed between two neighboring screen 10 includes flaring
Section 201, the opening area of flared section 201 by the direction of ducting outlet 22 to tunnel inlet 21 along being gradually increased, i.e. screen 10
Towards the streamlined design in the surface of flared section 201, the opening area of tunnel inlet 21 is increased, reduces fan resistance, energy
Enough there are more wind to convey outward by air duct 20, to make the tower of tower fan and same specification in the prior art provided by the present application
Fan is compared, and air output is bigger, and air supply efficiency is higher；Simultaneously as the resistance of 10 pairs of each screen air-supplies is smaller, so that ducting outlet
For 22 wind velocity out compared with the intake velocity of tunnel inlet 21, wind speed drop is smaller, and reduce tower fan uses noise, improves
The operation sound quality of tower fan, improves user experience good opinion.
Optionally, as depicted in figs. 1 and 2, the opening area of tunnel inlet 21 is greater than the opening area of ducting outlet 22.
In the embodiment (not shown) of the application, the cross-sectional area of screen 10 is arranged in D type.Wherein, D type is arranged
Refer to that screen includes plane surface section and curved surface section.
This application involves D type both included full symmetric D type, the i.e. opening area of tunnel inlet 21 and ducting outlet 22
Opening area it is identical, also include the D type of non complete symmetry, i.e. the opening area of tunnel inlet 21 is greater than ducting outlet 22 and opening
Open area.
Optionally, the streamlined design in each surface of screen 10.In the tower fan shown in Fig. 1 to Fig. 4, screen 10 is in aerofoil profile
Setting.
In remaining embodiment not shown of the application, the cross-sectional area of screen is regular shape or non-regular shape, only
It includes flared section 201 at the position of tunnel inlet 21 that air duct 20, which need to be met, in this way, increase the air quantity for entering air duct 20,
Promote the wind pushing performance of tower fan.
As shown in Figure 1, tower fan further includes shell 30 and wind wheel 40, shell 30 has accommodating chamber 31 and is connected with accommodating chamber 31
Logical air outlet 32, air outlet grate are arranged at air outlet 32, and wind wheel 40 is rotatably arranged in accommodating chamber 31；Fig. 1's
In specific embodiment, screen 10 includes sequentially connected first surface 11, the first inclined-plane 13, the second curved surface 12 and the second inclined-plane
14, wherein first surface 11, which is located at the side close to wind wheel 40 and protrudes towards 40 side of wind wheel, to be arranged；The of one screen 10
Wind path wall of first inclined-plane 13 of one curved surface 11, the second inclined-plane 14 and another screen 10 adjacent thereto as air duct 20, and
First inclined-plane 13 of the first surface 11 of one screen 10 and another screen 10 adjacent thereto is used to form flared section 201.
In specific embodiment shown in fig. 1, the shape on each surface of screen 10 is optimized, to promote the wind pushing performance of tower fan.
As depicted in figs. 1 and 2, a point on 13 intersecting lens of the first surface 11 of a screen 10 and the first inclined-plane and with
The distance between the first surface 11 of its another adjacent screen 10 point corresponding with one on 13 intersecting lens of the first inclined-plane
For b, the of one end of the separate first surface 11 on the second inclined-plane 14 of a screen 10 and another screen 10 adjacent thereto
The distance between the one end of separate first surface 11 on one inclined-plane 13 is a, wherein b > a.
Optionally, 0 < b-a≤15mm.
Optionally, more intensive screen is set at the biggish position of the flow of wind, in the lesser position of the flow of wind
More sparse screen is arranged in place, thus while guaranteeing that tower fans air output, additionally it is possible to reduce the loss amount of wind.It is shown in Fig. 1
Alternative embodiment in, and the distance between two neighboring screen 10 is gradually increased along the rotation direction of wind wheel 40.In the tool of Fig. 1
In body embodiment, wind wheel 40 is rotated clockwise, and the distance between two neighboring screen 10 is gradually increased from left to right.In this way,
Analysis of experiments has been carried out by the flow to wind, by changing the distance between two neighboring screen 10, has been made provided by the present application
Tower fan has preferable service performance.
Further, as shown in Figure 1, the distance between two neighboring screen is changing value, but the value of b-a is being greater than 0
And it is less than or equal in the range of 15mm be fluctuated.The application further improves making for tower fan by optimized dimensions parameter
Use performance.
In the embodiment (not shown) of the application, between the equal or each screen 10 of the distance between each screen 10
Distance to be intermediate intensive and two sides are sparse.
As shown in Figure 1, multiple screens 10 are along camber line arranged for interval, and the second curved surface 12 of each screen 10 is same first circle
The endpoint towards wind wheel 40 of the part of the surface of cambered surface, the first surface 11 of each screen 10 is respectively positioned on the second arc surface, simultaneously
In order to facilitate the design and processing of screen 10, the first arc surface is arranged concentrically with the second arc surface.
In the embodiment (not shown) of the application, the first arc surface and the non-concentric setting of the second arc surface.
As shown in figure 3, further optimize to the shape of screen 10, the first inclined-plane 13 is from first surface 11 to second
The direction of curved surface 12, which tilts, to be extended, and the slanted angle α between the first inclined-plane 13 and vertical direction is greater than 0 ° and is less than or equal to
10°。
As shown in figure 3, further optimize to the shape of screen 10, the second inclined-plane 14 is along from first surface 11 to
The direction of two curved surfaces 12, which tilts, to be extended, and the slanted angle β between the second inclined-plane 14 and vertical direction is greater than 0 ° and is less than or equal to
10°。
As shown in figure 3, the inclined direction on the first inclined-plane 13 and the second inclined-plane 14 is on the contrary, and anti-in the extension far from wind wheel 40
It is close to each other upwards.
It should be noted that this application involves vertical direction refer to the vertical direction of Fig. 3.
As shown in figure 3, first surface 11 and the second inclined-plane 14 are tangent.To make between first surface 11 and the second inclined-plane 14
Smooth transition reduces fan resistance, to promote the service performance of tower fan.
Optionally, the junction on first surface 11 and the first inclined-plane 13 forms chamfering structure；And/or second curved surface 12 and
The junction on one inclined-plane 13 forms chamfering structure；And/or second the junction on curved surface 12 and the second inclined-plane 14 form chamfering structure.
In the alternative embodiment of Fig. 3, the junction on first surface 11 and the first inclined-plane 13, the second curved surface 12 and first are oblique
The junction in face 13 and the junction of the second curved surface 12 and the second inclined-plane 14 are respectively formed rounding corner structure, to make screen 10
It is seamlessly transitted between each surface, whole streamlined design.
When in use, after air-flow passes through the fan blade of wind wheel 40, air-flow is along the tangent line side of fan blade for tower fan provided by the present application
To being thrown out of, the air-flow being thrown out of enters air outlet grate, and is flowed by the direction of tunnel inlet 21 to ducting outlet 22, due to going out
Style grid when accessing air-flow close to the tangential direction of air-flow, thus make air-flow it is more smooth when enter two neighboring screen 10 it
Between air duct 20 in, wind speed drop is small, and the fan resistance of the screen 10 of air outlet grate is smaller, to allow airflow into air duct 20
When generate lesser noise, promote the usage experience good opinion of tower fan.The opening area of tunnel inlet 21 is greater than ducting outlet 22
Opening area, so as to make the wind of greater flow by air duct 20, and in the specific embodiment shown in Fig. 1 to Fig. 3, gas
After flowing into air inlet duct 20, the extending direction along the first surface 11 of a screen 10 advances, and rushes at adjacent thereto another
First inclined-plane 13 of screen 10, and it is linearly sent ducting outlet 22, realize the air-supply of tower fan.It is not shown in the application
Embodiment in, screen 10 can be the airflow design similar with Fig. 3.
Fig. 4 shows the air-supply effect emulation schematic diagram of tower fan provided by the present application, and Fig. 5 shows tower fan in the prior art
Air-supply effect emulation schematic diagram.In diagram state, air-flow is entered in tower fan by the top that tower is fanned, then is sent by the lower section that tower is fanned
Out, by Fig. 4 and Fig. 5 it is apparent that the air output of tower provided by the present application fan is bigger.In addition, tower fan provided by the present application
The emulation data fanned with tower in the prior art are as illustrated in chart 1.
The emulation data of the tower provided by the present application of table 1 fan and tower in the prior art fan
| Type | Revolving speed (RPM) | Air quantity (m3/h) | A point wind speed |
| Tower fan provided by the present application | 1300 | 547.1 | 5.5 |
| Tower fan in the prior art | 1300 | 404.2 | 4.1 |
By the correlation data of table 1 it is found that tower provided by the present application fan is compared with tower in the prior art fan, in wind wheel 40
In the identical situation of revolving speed, the air output of tower fan provided by the present application is bigger, and the wind speed measured at A point is bigger.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
The design of the air outlet grate of tower fan provided by the present application more meets hydrodynamics, has lesser fan resistance and fortune
Row noise, the air output and air supply efficiency for improving tower fan improve the use of user to improve the service performance of tower fan
Experience good opinion.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of invention protection scope.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of tower fan characterized by comprising
Air outlet grate, the air outlet grate include multiple spaced screens (10), are formed between two neighboring screen (10)
One air duct (20), the air duct (20) have tunnel inlet (21) and ducting outlet (22), the air duct (20) include edge by
The flared section (201) that the direction of the ducting outlet (22) to the tunnel inlet (21) is gradually increased, and the flared section
(201) at the position of the tunnel inlet (21).
2. tower fan according to claim 1, which is characterized in that the opening area of the tunnel inlet (21) is greater than the wind
Road exports the opening area of (22).
3. tower fan according to claim 1, which is characterized in that the cross-sectional area of the screen (10) is arranged in D type.
4. tower fan according to claim 1, which is characterized in that the tower fan further include:
Shell (30), the air outlet (32) that the shell (30) has accommodating chamber (31) and is connected with the accommodating chamber (31),
The air outlet grate is arranged at the air outlet (32)；
Wind wheel (40), the wind wheel (40) are rotatably arranged in the accommodating chamber (31)；
The screen (10) includes that sequentially connected first surface (11), the first inclined-plane (13), the second curved surface (12) and second are oblique
Face (14), wherein the first surface (11) is located at close to the side of the wind wheel (40)；
The of the first surface (11) of one screen (10), the second inclined-plane (14) and another screen (10) adjacent thereto
Wind path wall of one inclined-plane (13) as the air duct (20), and the first surface (11) of screen (10) and adjacent thereto
The first inclined-plane (13) of another screen (10) be used to form the flared section (201).
5. tower fan according to claim 4, which is characterized in that the first surface (11) and first of a screen (10)
The first surface (11) of a point and another screen (10) adjacent thereto on inclined-plane (13) intersecting lens is oblique with first
The distance between one on face (13) intersecting lens corresponding point is b, the second inclined-plane (14) of a screen (10) it is remote
Separate the first of first inclined-plane (13) of one end and another screen (10) adjacent thereto from first surface (11) is bent
The distance between the one end in face (11) is a, wherein b > a.
6. tower fan according to claim 5, which is characterized in that 0 < b-a≤15mm.
7. tower according to claim 4 fan, which is characterized in that first inclined-plane (13) from the first surface (11) to
The direction of second curved surface (12), which tilts, to be extended, and the slanted angle α between first inclined-plane (13) and vertical direction is big
In 0 ° and it is less than or equal to 10 °.
8. tower fan according to claim 4, which is characterized in that second inclined-plane (14) is along by the first surface (11)
It tilts and extends to the direction of second curved surface (12), and the slanted angle β between second inclined-plane (14) and vertical direction
Greater than 0 ° and it is less than or equal to 10 °.
9. tower fan according to claim 4, which is characterized in that the first surface (11) and the second inclined-plane (14) phase
It cuts.
10. tower fan according to claim 9, which is characterized in that
The junction of the first surface (11) and first inclined-plane (13) forms chamfering structure；And/or
The junction of second curved surface (12) and first inclined-plane (13) forms chamfering structure；And/or
The junction of second curved surface (12) and second inclined-plane (14) forms chamfering structure.
11. tower according to claim 4 fan, which is characterized in that multiple screens (10) are and each along camber line arranged for interval
The second curved surface (12) of the screen (10) is the part of the surface of same first arc surface, the first surface of each screen (10)
(11) the endpoint towards the wind wheel (40) is respectively positioned on the second arc surface, first arc surface and second arc surface
It is arranged concentrically.
12. tower fan according to any one of claims 4 to 11, which is characterized in that between two neighboring screen (10)
Rotation direction of the distance along the wind wheel (40) is gradually increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419432.0A CN109281853A (en) | 2018-11-26 | 2018-11-26 | Tower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419432.0A CN109281853A (en) | 2018-11-26 | 2018-11-26 | Tower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109281853A true CN109281853A (en) | 2019-01-29 |
Family
ID=65173141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811419432.0A Pending CN109281853A (en) | 2018-11-26 | 2018-11-26 | Tower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109281853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2591486A (en) * | 2020-01-30 | 2021-08-04 | Bucher Municipal Ltd | Fan system for a road sweeping vehicle |
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| GB2591486A (en) * | 2020-01-30 | 2021-08-04 | Bucher Municipal Ltd | Fan system for a road sweeping vehicle |
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