CN205478224U - Fan - Google Patents

Abstract

The utility model provides a fan, it includes base and nozzle, the nozzle can be for base tilted position to tilted position never, the nozzle includes air intake part, inside passage and gas outlet, the base includes impeller, motor and top shell, top shell is including first casing that has first through -hole and the second casing that has the pipeline, air intake part has at least the part to pass first through -hole stretches into in the pipeline, and air intake part with the pipeline contacts. This kind of fan's air -out position can adjust in vertical plane and stability and whole outward appearance all better.

Description

Fan

Technical field

This utility model relates to a kind of fan.

Background technology

Traditional fan generally includes the one group of blade rotated around the shaft and for driving this group blade to rotate to produce the motor of air-flow.This group blade is usually located in cage, and this cage allows air-flow to pass, and stops human contact to arrive the blade that this group rotates.

This kind of fan can be various sizes and shape.Such as, ceiling fan can have the diameter of at least l000mm, and is mounted air-flow downward with offer on the ceiling the most in a hanging manner.The most such as, desk fan is generally of the diameter of 300mm, and generally freely erects and be easily moved.Other type of fan can be positioned on floor or be arranged on wall.

The shortcoming of this kind of fan is that air-flow produced by rotating vane is typically uneven or " springing up ".This is uncomfortable for the user.It is positioned at cage although further drawback is rotating vane, but in some cases, human body also touches the danger of rotating vane.

On July 20th, 2011, Authorization Notice No. was that the Chinese patent (application number: 201020647163.6) of CN201902359U discloses a kind of fan.This kind of fan includes base and is provided with the head of nozzle, and between end face and the head bottom surface of this base, sphere is slidably matched, and makes head can tilt to obliquity relative to base never obliquity.

The rotating vane that this fan does not expose also can produce stable air-flow, improves the quality of air-flow and the safety of use.But, when the head of this fan is in obliquity, its stability is the best；The overall appearance of fan is also by large effect.

Summary of the invention

The purpose of this utility model is to provide for kind of air-out orientation and can adjust in perpendicular and stability and overall appearance all preferably fan.

To achieve these goals, technical scheme provided by the utility model is: a kind of fan, described fan includes pedestal and the nozzle being connected with pedestal, it is characterized in that, described nozzle can be relative to described pedestal never obliquity to obliquity, described nozzle includes intake section, inner passage and gas outlet, described pedestal includes impeller, motor and top shell, described top shell includes having the first housing of the first through hole and have the second housing of pipeline, described intake section at least partially passes through described first through hole and extend in described pipeline, and described intake section contacts with described pipeline.

The nozzle of this kind of fan can adjust relative to the air-out orientation of pedestal never obliquity to obliquity, i.e. fan in perpendicular；Owing to the quality of nozzle is less relative to the quality of pedestal, nozzle will not make the center of gravity of whole fan that bigger skew occurs relative to the inclination of pedestal, is conducive to improving the stability of fan；The top shell of particularly this kind of fan is made up of the first housing and the second housing, and the first housing can effectively hide the connecting portion of the best intake section of outward appearance and pipeline, is conducive to improving the aesthetics of fan.

Described nozzle can turn to obliquity relative to pedestal never obliquity, it is also possible to slides into obliquity relative to pedestal never obliquity.Nozzle is in inclination angle during maximum inclining position relative to pedestal and is preferably located between 5 ° to 30 °, is more preferably located between 6 ° to 15 °.

Preferably, when nozzle relative to pedestal never obliquity to obliquity time, the air inlet of intake section towards changing.

In a preferred embodiment, described nozzle also includes the rotating shaft being connected with described intake section, and described rotating shaft at least part is positioned at the cavity being made up of the first housing and the second housing.Arranging the rotating shaft being connected with intake section, beneficially nozzle turns to obliquity relative to pedestal never obliquity；And rotating shaft is positioned at the cavity being made up of the first housing and the second housing, to facilitate fixed rotating shaft and to make rotating shaft not expose, be conducive to making the compact conformation of fan and overall appearance.

Preferably, the axis direction of described rotating shaft is perpendicular with the airintake direction of the air inlet of described intake section.

Second housing is usually located at the lower section of the first housing；First housing generally fixes with the second housing, and the edge of the preferably first housing fixes with the edge of the second housing.

The lower end of described pipeline is preferably lower than the edge of the second housing；The cross section of described pipeline can be various shape, and the shape of the cross section of described pipeline preferably includes rectangle；The area of the cross section of described pipeline preferably tapers into from the upper end of described pipeline to the lower end of described pipeline.

First shell body can include the housing of annular, it is also possible to includes other shapes of housing.

Preferably, the outer surface of described intake section is in close contact with the inner surface of described pipeline.The outer surface of intake section and the inner surface of pipeline can include cylinder surface, it is also possible to include flat surface.Cylinder surface preferably includes cylindrical surface.

In a preferred embodiment, the partial outer face of intake section be cylinder surface, partial outer face be flat surface；The portion inner surface of pipeline be cylinder surface, portion inner surface be flat surface.

In a preferred embodiment, fan includes the flexible seals between import department and pipeline.So be conducive to fan to keep air-tightness between import department and pipeline, leak from the gap between import department and pipeline reducing air-flow.Described flexible seals preferably includes rubber seal.

Preferably, nozzle defines the second through hole.The shape of the second through hole includes circle, ellipse and rectangle etc..

Nozzle highly preferable between 100mm to 600mm, more preferably between 150mm to 500mm.

Gas outlet preferably includes slot-shaped gas outlet, and its gas outlet width in exit is usually located between 0.5mm to 8mm, is preferably located between 1mm to 3.5mm.

Impeller can be centrifugal impeller, it is also possible to be mixed flow impeller, it is therefore preferable to mixed flow impeller；The rotating speed of impeller is usually located between 800rpm to 7500rpm, is preferably located between 1200rpm to 7000rpm.Motor can be DC brushless motor, it is also possible to be alternating current generator.

In a preferred embodiment, pedestal includes base portion, is positioned at the base below base portion and is positioned at the appendix within base portion, and wherein, appendix is connected with described pipeline.

First housing can also include the segment pipe being arranged at the first through hole, arranges this segment pipe, is conducive to preferably hiding the connecting portion of the pipeline of the intake section of nozzle and the second housing.

Accompanying drawing explanation

Fig. 1 is the front schematic view of fan of the present utility model.

Fig. 2 is the side view of the fan shown in Fig. 1.

Fig. 3 is the top view of the first housing of the top shell of the fan shown in Fig. 1.

Fig. 4 is the sectional view of the amplification of the pedestal that the line A A along Fig. 1 intercepts.

Fig. 5 is the sectional view of the amplification of the nozzle that intercepts of line A A along Fig. 1 and top shell.

Fig. 6 is the sectional view of the amplification of the pedestal that the line B B along Fig. 2 intercepts.

Fig. 7 is the sectional view of the amplification of the nozzle that intercepts of line B B along Fig. 2 and top shell.

Fig. 8 is that the fan shown in Fig. 1 is tilted forward to the side view of a certain obliquity at nozzle.

Fig. 9 is that the fan shown in Fig. 1 tilts backwards the side view to a certain obliquity at nozzle.

Detailed description of the invention

Fig. 1 is the front schematic view of the fan of the present utility model from device forward observation, and Fig. 2 is the side view of the fan shown in Fig. 1.It can be seen that fan 100 includes pedestal 2 and the nozzle 1 being positioned on pedestal 2 from Fig. 1 and Fig. 2.Pedestal 2 includes base 10 and the base portion 8 being positioned on base 10, and base portion 8 includes the exercisable multiple buttons 11,12 and 13 of top shell 20, air inlet 9 and user, and air inlet 9 is the form being formed at the multiple holes on base portion 8 sidewall.Air outside fan is inhaled in base portion 8 by air inlet 9.

Fig. 3 is the top view of the first housing of the top shell of the fan shown in Fig. 1, Fig. 4 is the sectional view of the amplification of the pedestal that the line A A along Fig. 1 intercepts, Fig. 6 is the sectional view of the amplification of the pedestal that the line B B along Fig. 2 intercepts, from Fig. 3, Fig. 4 and Fig. 6 it can be seen that, the top shell 20 of base portion 8 includes first housing 3 with through hole 51 and has the second housing 4 of pipeline 18, the edge 69 of the first housing 3 and the edge 68 of the second housing 4 are fixed, and the lower end 67 of the pipeline 18 of the second housing 4 is less than the edge 68 of the second housing 4；Being provided with impeller chimney 22, impeller 23 in the tubular shell 21 of base portion 8 and drive the motor 24 of impeller 23 rotary work, impeller 23 is positioned at impeller chimney 22, and impeller chimney 22 includes air inlet 34 and gas outlet 35.

Motor 24 is contained in electric machine casing 25.Electric machine casing 25 includes upper part 26 and lower part 27, and upper part 26 is fixing with lower part 27 by screw and is fixed therein by motor 24.The rotating shaft 38 of motor 24 is passed through the lower part 27 of electric machine casing 25 and is positioned at the hole of bottom, to allow impeller 23 to be connected in rotating shaft 38.The upper part 26 of electric machine casing 25 also includes multiple bar 31, and motor 24 is fixed with impeller chimney 22 by multiple bars 31 of electric machine casing 25.

In the present embodiment, impeller 23 and impeller chimney 22 are configured to when impeller 23 and electric machine casing 25 are supported by impeller chimney 22, and the blade tips of impeller 23 is very close to the inner surface of impeller chimney 22, but is not exposed to this inner surface, and impeller 23 is substantially coaxial with impeller chimney 22.

Impeller chimney 22 is provided with cable punching hole (being not drawn in figure), a bar 31 of electric machine casing 25 is also equipped with cable punching hole (being not drawn in figure), cable punching hole on impeller chimney 22 is directed at the cable punching hole on bar 31 and makes cable may pass through, to facilitate cable to be connected to motor 24 from circuit arrangement 37.In the present embodiment, electric machine casing 25, impeller chimney 22 and impeller 23 are preferably formed by plastics.

The gas skirt 32 that the air-flow formed by impeller 23 converges it is additionally provided with in the tubular shell 21 of base portion 8, the lower end of gas skirt 32 is connected with electric machine casing 25, the upper end of gas skirt 32 is connected with the lower end 67 of the pipeline 18 of the second housing 4, and the gas outlet 43 of gas skirt 32 connects with pipeline 18.Preferably, between the lower end 67 of the upper end of gas skirt 32 and the pipeline 18 of the second housing 4, flexible seals is set, such as rubber ring, use flexible seals beneficially gas skirt 32 is tightly connected with pipeline 18, and some vibrations and the noise that are also beneficial to decay motor and impeller transmit to the shell of pedestal.

Impeller chimney 22 is supported by multiple supporting members 29.It will be clear that supporting member 29 is a spring element in Fig. 4 and Fig. 6.In the present embodiment, the quantity of supporting member 29 is 4, i.e. the quantity of spring element is 4, and the upper end of spring element is fixed with the projection 30 being formed on impeller chimney 22 outer surface, and the lower end of spring element is fixed on the pedestal 28 being connected with tubular shell 21.Owing to supporting member 29 is spring element, spring element can effectively absorb some vibration and noises from motor 24 and impeller 23, and otherwise these vibrations and noise are directly passed to tubular shell 21 easily by impeller chimney 22 and amplify.

Base 10 is for engaging the surface at fan 100 place.Pedestal 2 also includes the swing mechanism for making base portion 8 swing back and forth relative to base 10, and this swing mechanism includes synchronous motor 36, and the operation of swing mechanism is responded user by circuit arrangement 37 and presses the button 13 and control.Hunting range is preferably between 60 ° and 120 °, and swing mechanism is arranged to 3 to 6 hunting periods of execution per minute.The hole being passed through on base 10 for supplying power to the cable (not drawing) of fan extends.

In the present embodiment, motor 24 is DC brushless motor, and the rotating speed of motor can respond user operation button 12 by circuit arrangement 37 and change.

Fig. 5 is the sectional view of the amplification of the nozzle that intercepts of line A A along Fig. 1 and top shell, and Fig. 7 is the sectional view of the amplification of the nozzle that intercepts of the line B B along Fig. 2 and top shell.From Fig. 5 and Fig. 7 it can be seen that, nozzle 1 includes main body 6 and intake section 15, the main body 6 of nozzle includes inner passage 14 and gas outlet 7 and defines centrally located through hole 5, intake section 15 is positioned at below main body 6, intake section 15 has the air inlet 65 being positioned at lower end, when pedestal 2 is on horizontal plane and nozzle 1 is in not obliquity relative to pedestal 2, air inlet 65 towards downwards, and with reference to Fig. 3, the intake section 15 of nozzle 1 is through the through hole 51 of the first housing 3 and in extending into the pipeline 18 of the second housing 4, the outer surface 63 of intake section 15 contacts with the inner surface 41 of pipeline 18.

In the present embodiment, the through hole 51 of the first housing 3 be shaped as rectangle；Observe from the dead ahead of fan 100, it is cylindrical surface that intake section 15 is positioned at the partial outer face of front side and rear side, it is flat surface that intake section 15 is positioned at the partial outer face on left side and right side, it is cylindrical surface that pipeline 18 is positioned at the portion inner surface of front side and rear side, and it is flat surface that pipeline 18 is positioned at the portion inner surface on left side and right side.

In the present embodiment, nozzle 1 is additionally provided with and the fixing rotating shaft of intake section 15, the rotating shaft of the present embodiment is made up of two points of rotating shafts 19, they are individually fixed in the left and right sides of intake section 15, the two divides the axis of rotating shaft to be located along the same line, and the two divides the axis direction of rotating shaft perpendicular with the airintake direction of the air inlet 65 of intake section 15.Additionally the two divides rotating shaft to be all located in the cavity 66 being made up of the first housing 3 and the second housing 4, is so conducive to the fixing of rotating shaft, is also beneficial to make rotating shaft not expose.

In the present embodiment, nozzle 1 can turn to obliquity relative to pedestal 2 never obliquity or turns to another obliquity from an obliquity or turn to not obliquity from obliquity.It is readily seen from Fig. 5 and Fig. 7, when the gradient of nozzle 1 changes, the intake section 15 of nozzle 1 and pipeline 18 relative motion to be occurred of the second housing 4, in order to prevent the leakage of air-flow, the outer surface 63 of intake section 15 needs to remain close contact with the inner surface 41 of pipeline 18.Therefore it is generally necessary to be provided for the component sealed between intake section 15 and pipeline 18, and the component being provided for sealing is well known technology.If it is true that the machining accuracy of intake section 15 and pipeline 18 is sufficiently high, it is also possible to be not provided with the component for sealing.

In the present embodiment, the gas outlet 7 of nozzle 1 is slot-shaped gas outlet, and its gas outlet 7 width in exit is about 1.2mm.

In order to operate fan 100, user presses the button 11, responds this operation, and circuit arrangement 37 activates motor 24 with rotary blade 23.The rotation of impeller 23 bypasses air through in the tubular shell 21 that air inlet 9 enters pedestal 2.The air-flow that impeller 23 is formed after gas skirt 32 converges by the pipeline 18 carrying the second housing 4 in, then arrived in nozzle 1 by the air inlet 65 of import department 15.

In nozzle 1, air-flow is divided into two strands and advances in the inner passage 14 of main body 6.The air-flow advanced in inner passage 14 is launched by gas outlet 7, and the partial air around nozzle is rolled up suction by the air-flow launched from gas outlet 7, and the air-flow so launched from gas outlet 7 is bonded, with the air-flow inhaled by volume, the total air flow launched forward from nozzle 1.

Fig. 8 illustrates the fan shown in Fig. 1 and is tilted forward to the side view of a certain obliquity at nozzle, Fig. 9 illustrates the fan shown in Fig. 1 and tilts backwards the side view to a certain obliquity at nozzle, it is readily seen from Fig. 8 and Fig. 9 and with reference to Fig. 2, when nozzle 1 is in not obliquity relative to pedestal 2, the air-flow that fan is exported at the gas outlet 7 of nozzle 1 is to advance approximately along horizontal direction X；When nozzle 1 is tilted forward to a certain obliquity relative to pedestal 2, the air-flow that fan is exported at the gas outlet 7 of nozzle 1 is to advance approximately along the direction the most at an angle with horizontal direction X；When nozzle 1 tilts backwards to a certain obliquity relative to pedestal 2, the air-flow that fan is exported at the gas outlet 7 of nozzle 1 is approximately along the direction traveling being angled up with horizontal direction X.Therefore nozzle 1 is relative to the tilt operation of pedestal 2, thus it is possible to vary the air-flow that fan is exported orientation in perpendicular, to meet the different demands of user；It addition, this kind of fan is in obliquity and is in not obliquity, its overall appearance is all preferable, and this is conducive to attracting consumer.

While there has been shown and described that it is presently considered to be preferred embodiment of the present utility model, but it will be apparent that those skilled in the art can carry out various changes and improvements, without departing from scope of the present utility model as defined in appended claims.

Claims (10)

1. a fan, described fan includes pedestal and the nozzle being connected with described pedestal, it is characterized in that, described nozzle can be relative to described pedestal never obliquity to obliquity, described nozzle includes intake section, inner passage and gas outlet, described pedestal includes impeller, motor and top shell, described top shell includes having the first housing of the first through hole and have the second housing of pipeline, described intake section at least partially passes through described first through hole and extend in described pipeline, and described intake section contacts with described pipeline.

2. fan as claimed in claim 1, it is characterised in that described nozzle also includes the rotating shaft being connected with described intake section, described rotating shaft at least part is positioned at the cavity being made up of described first housing and described second housing.

3. fan as claimed in claim 1, it is characterised in that described second housing is positioned at the lower section of described first housing.

4. the fan as described in one of claims 1 to 3, it is characterised in that the lower end of described pipeline is less than the edge of described second housing.

5. the fan as described in one of claims 1 to 3, it is characterised in that the shape of the cross section of described pipeline includes rectangle.

6. the fan as described in one of claims 1 to 3, it is characterised in that described first housing includes the housing of annular.

7. the fan as described in one of claims 1 to 3, it is characterised in that the outer surface of described intake section and the inner surface of described pipeline all include cylinder surface.

8. the fan as described in one of claims 1 to 3, it is characterised in that the outer surface of described intake section and the inner surface of described pipeline all include flat surface.

9. the fan as described in one of claims 1 to 3, it is characterised in that when described nozzle relative to described pedestal never obliquity to obliquity time, the air inlet of described intake section towards changing.

10. the fan as described in one of claims 1 to 3, it is characterised in that described nozzle defines the second through hole.