CN209083637U - Tower fan - Google Patents

Abstract

The utility model provides a kind of tower fan, 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 utility model 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

Tower fan

Technical field

The utility model 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.

Utility model content

The main purpose of the utility model is to provide a kind of tower fans, with the transversal of the solution screen that tower is fanned in the prior art Area is in rectangle, the problem that the air output for causing tower to be fanned is small and air supply efficiency is low.

To achieve the goals above, the utility model provides a kind of tower fan, comprising: air outlet grate, air outlet grate include Multiple spaced screens, form an air duct between two neighboring screen, and air duct has tunnel inlet and ducting outlet, wind Road 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 Place.

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.

Using the technical solution of the utility model, the shape of screen is changed, makes the wind formed between two neighboring screen Road includes flared section, and the opening area edge of flared section is gradually increased by the direction of ducting outlet to tunnel inlet, i.e. the court of screen To the streamlined design in the surface of flared section, the opening area of tunnel inlet is increased, fan resistance is reduced, can had more Wind conveyed outward by air duct, to make tower fan provided by the present application compared with the tower of same specification in the prior art fan, send Air quantity is bigger, and 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 Compared with the intake velocity of tunnel inlet, wind speed drop is smaller, and reduce tower fan uses noise, improves the operation sound of tower fan Matter improves user experience good opinion.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model. In the accompanying drawings:

Fig. 1 shows a kind of structural schematic diagram of the tower fan of alternative embodiment according to the present utility model；

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 utility model 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

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities Apply example.Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as practical new to this Type and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.

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 utility model provide a kind of tower fan.

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 utility model achieve the following technical effects:

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 Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with In attached drawing afterwards do not need that it is further discussed.

In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality Do not indicate that and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, because This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component itself Wide is inside and outside.

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 utility model protection range.

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 above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

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.