CN106704227A

CN106704227A - Fan

Info

Publication number: CN106704227A
Application number: CN201710061985.2A
Authority: CN
Inventors: 任文华
Original assignee: Xu Jiqiong
Current assignee: Xu Jiqiong
Priority date: 2017-01-29
Filing date: 2017-01-29
Publication date: 2017-05-24

Abstract

The invention relates to a fan. The fan comprises a base and a nozzle, the base comprises a vane wheel shell, a vane wheel and a motor, wherein the vane wheel is located in the vane wheel shell, and the motor is used for rotating the vane wheel around a rotating shaft. The vane wheel comprises a wheel hub, a plurality of blades connected to the wheel hub and a shield surrounding the wheel hub and the blades. The fan is characterized in that one of the vane wheel shell and the shield includes a first groove, and the other one of the vane wheel shell and the shield comprises a first convex body, part of the first convex body is located in the first groove, and the depth direction of the first groove is parallel or perpendicular to the direction of the rotating shaft. The fan can improve transferring efficiency of airflows.

Description

Fan

Technical field

The present invention relates to a kind of fan.Particularly, but not exclusively say, the present invention relates to domestic fan, such as desk fan, For producing air circulation and air-flow in room, office or other domestic environments.

Background technology

Traditional domestic fan generally comprises the motor of the blade group and driving blade group rotary work around rotating shaft rotation. The motion and circulation of air stream generate " air-cooled ", and because heat is dispersed by convection current and evaporation, to experience user cool Refreshing effect.

The fan of existing various sizes and shape.The diameter of ceiling fan is typically larger than lm, and generally being suspended on ceiling Mode install, room is lowered the temperature to provide downward air-flow.Bracker fan generally can arbitrarily be placed and can carried.Tower wind Fan generally includes the shell of elongated, vertical extension, and covered with the blade group for producing air stream, is rotated using swing mechanism The outlet of tower fan can be with the broad space in inswept room so as to air stream.

The defect of such fan is, one is uneven for the air-flow that rotating fan blades group is produced.Because There is changing factor in fan blade surface scope or the surface range for facing out.These changing factors cause produce it is uneven or " surge " air-flow, this air-flow can feel a series of air impulsive motions and allow user to feel under the weather.

The patent publication No. of on November 26th, 2014 is the Chinese patent application of the A of CN 104165134（Application No.： 201310186724.5）A kind of fan is disclosed, this kind of fan includes：Pedestal, pedestal is including shell body, in shell body Impeller housing, the impeller with air intlet and air outlet slit in impeller housing and for rotary blade around the shaft Motor, impeller include wheel hub, be connected to multiple blades of wheel hub and around wheel hub and the shield of blade；Be arranged on Nozzle on pedestal, nozzle includes inner passage and air outlet slit, and wherein air-flow is projected by air outlet slit from fan.

This kind of fan of structure can provide uniform air stream.But the sealing property between impeller housing and the shield of impeller It is not good enough, cause the not high of the efficiency of transmission of fan interior air-flow.

The content of the invention

A kind of deficiency it is an object of the invention to overcome above-mentioned prior art, there is provided wind that can improve air stream transportation efficiency Fan.

In order to reach the purpose of the present invention, the present invention is adopted the following technical scheme that：A kind of fan, the fan includes pedestal With the nozzle being arranged on pedestal, the pedestal include impeller housing, in impeller housing with air intlet and air The impeller of outlet and the motor for rotary blade around the shaft, the impeller include wheel hub, are connected to multiple leaves of wheel hub Piece and around wheel hub and the shield of blade, it is characterised in that one in impeller housing and shield includes the first groove, leaf Another in wheel housing and shield includes the first convex body, wherein, the first convex body at least part is located in the first groove, and first Direction of the depth direction of groove parallel or perpendicular to rotating shaft.

Sealing property between this kind of impeller housing and the shield of impeller of fan is improved, and is conducive to air stream transportation The raising of efficiency；In addition, this kind of sealing structure between impeller housing and the shield of impeller is compact, it is easy to batch micro operations and should With.

In order to further improve sealing property, one in impeller housing and shield not only includes the first groove, also includes Second convex body；Another in impeller housing and shield not only includes the first convex body, also including the second groove；Wherein, second is convex Body at least part is located in the second groove.

Preferably, the depth direction of the second groove is also parallel or perpendicular to the direction of rotating shaft.

In a preferred embodiment, in impeller housing and shield not only includes the first groove, also convex including second Body；Another in impeller housing and shield not only includes the first convex body, also including the second groove；Wherein, the second convex body is at least There is part to be located in the second groove；The part trough wall surface of the first groove belongs to the surface of the second convex body, the part groove of the second groove Wall belongs to the surface of the first convex body.The sealing structure of the embodiment is not only compact, and sealing property is significantly increased.

Preferably, the first groove includes the twisted rotary shaft groove of a week, and the first convex body includes the twisted rotary shaft convex body of a week.

The depth of the first groove and the second groove is usually located at 2mm to 25mm, is preferably located between 2mm to 15mm；The The width of one groove and the second groove is usually located at 3mm to 12mm, is preferably located between 4mm to 10mm；First convex body and The height of two convex bodys is usually located at 3mm to 30mm, is preferably located in 5mm to 20mm.

The cross section of the first groove and the second groove can include rectangle, it is also possible to including other shapes；First convex body Cross section with the second convex body can include rectangle, it is also possible to including other shapes.

Preferably, the surface of the first convex body is very close to the trough wall surface of the first groove, but is not exposed to the first groove Trough wall surface；Equally, the surface of the second convex body is very close to the trough wall surface of the second groove, but is not exposed to the cell wall of the second groove Face.

The trough wall surface of the first groove is nearer with the distance of the first convex body, is more conducive to improving sealing property；Equally, second is recessed The trough wall surface of groove is nearer with the distance of the second convex body, is also more conducive to improving sealing property；But distance is too near, easily revolved in impeller Change a job when making, shield and the impeller housing of impeller come in contact, so as to influence impeller normally to rotate.

The distance of the trough wall surface of the first groove and the first convex body is typically smaller than 3mm, preferably less than 1mm, more preferably small In 0.5mm；Equally, the distance of the trough wall surface of the second groove and the second convex body is typically smaller than 3mm, preferably less than 1mm, more preferably Ground is less than 0.5mm.

In a preferred embodiment, shield includes the first groove, and impeller housing includes the first convex body, and shield includes being located at leaf Front end at the air intlet of wheel and the rear end at the air outlet slit of impeller, also, the notch of the first groove is located at shield Front end at.

The rotating speed of impeller is usually located between 800rpm to 7500rpm, is preferably located between 1200rpm to 6000rpm. Motor can be DC Brushless Motor, or alternating current motor.

In a preferred embodiment, pedestal includes base portion and the base below base portion, and base portion can be relative to Base swings.

Nozzle can include main body and import department, and main body can never obliquity slides into inclination position relative to import department Put, import department includes air inlet pipe and the component being connected with air inlet pipe, and main body is including for receiving the inner passage of air-flow and being used for Launch the air outlet slit of air-flow.

Inclination angle when main body is in maximum inclining position relative to import department is preferably located between 6 ° to 30 °, more excellent Selection of land is located between 8 ° to 15 °.

Nozzle preferably extends around a through hole, inhales logical from the air-flow volume that the air outside nozzle is launched from air outlet slit Cross the through hole.Nozzle preferably includes nozzle ring, its nozzle highly preferable between 200mm to 600mm, more preferably Ground is between 250mm to 500mm.

The air outlet slit of nozzle can include slot-shaped air outlet slit, and width of its air outlet slit in exit is usually located at Between 0.5mm to 8mm, it is preferably located between 1mm to 3.5mm.

Brief description of the drawings

Fig. 1 is the front schematic view of fan of the invention.

Fig. 2 is the front schematic view of the nozzle of fan shown in Fig. 1.

Fig. 3 is the front schematic view of the pedestal of fan shown in Fig. 1.

Fig. 4 is the sectional view of the pedestal of the fan intercepted along the line A-A of Fig. 3.

Specific embodiment

Figure l is the schematic diagram from the fan of the invention of device forward observation, it will be seen from figure 1 that fan 100 includes base Seat 2 and setting nozzle 1 on the base 2.Pedestal 2 includes base 10 and the base portion 8 on base 10, and base portion 8 includes air Import 9 and the exercisable multiple buttons 11,12 and 13 of user, air intlet 9 are the multiple holes being formed on base portion shell body Form.Air outside fan is inhaled into base portion 8 by air intlet 9.

Fig. 2 is the schematic diagram of the nozzle of the fan shown in figure l.From figure 2 it can be seen that nozzle 1 includes main body 4 and import Portion 3.Main body 4 include shell body 6, the inner passage for receiving air-flow, the air outlet slit 7 for launching air-flow and for allow into Oral area 3 has the opening that part can be stretched into.In the present embodiment, main body 4 can be slided relative to import department 3, so that fan can be with Change air-out orientation in perpendicular.

In the present embodiment, main body 4 has the shell body 6 of annular and defines centrally located through hole 5, air outlet slit 7 Positioned at main body 4 front portion and be arranged to towards fan front launch air-flow, from air outlet slit 7 transmitting air-flow in air outlet slit 7 exit is roughly parallel to the direction of axis X.

In the present embodiment, air outlet slit 7 is slot-shaped air outlet slit, and its width of air outlet slit 7 in exit is about 1.8mm。

Fig. 3 is the schematic diagram of the pedestal of the fan shown in figure l, and Fig. 4 illustrates the internal structure of pedestal.From Fig. 3 and Fig. 4 As can be seen that pedestal 2 includes base 10 and the base portion 8 with shell body 41, impeller housing is provided with the shell body 41 of base portion 8 Body 14, impeller 15 and the motor 16 for driving impeller to rotate.Impeller 15 is located in impeller housing 14, and impeller 15 enters including air Mouth 25 and air outlet slit 26.

Motor 16 is contained in motor shell 22.Motor shell 22 includes upper part 24 and lower part 23, upper surface portion 24 are divided to be fixed with lower part 23 by screw and be fixed therein motor 16.The rotating shaft 31 of motor 16 is passed through motor Part 23 is located at the hole of bottom below housing 22, to allow impeller 15 to be connected in rotating shaft 31.Above motor shell 22 Part 24 also includes multiple bars 32, and motor 16 is fixed by multiple bars 32 of motor shell 22 with impeller housing 14.

In the present embodiment, impeller 15 includes wheel hub 17, is connected to 9 blades 18 of wheel hub 17 and around wheel hub 17 and the shield 19 of blade 18；Shield 19 includes the second of twisted rotary shaft first groove 27 of 31 1 weeks and twisted rotary shaft 31 1 weeks Convex body 30, impeller housing 14 includes twisted rotary shaft first convex body 28 of 31 1 weeks and twisted rotary shaft second groove 29 of 31 1 weeks； First convex body 28 has part to be located in the first groove 27, and the second convex body 30 has part to be located in the second groove 29；First groove 27 Part trough wall surface belong to the surface of the second convex body 30, the part trough wall surface of the second groove 29 belongs to the surface of the first convex body 28.

In the present embodiment, the rotating shaft 31 of motor 16 is exactly impeller 15 and the common rotating shaft of motor 16, the He of the first groove 27 The depth direction of the second groove 29 is parallel to the direction of the rotating shaft；The depth of the first groove 27 and the second groove 29 may each be about The width of 10mm, the first groove 27 and the second groove 29 may each be about 5mm；The height of the first convex body 28 and the second convex body 30 may each be about The width of 12mm, the first convex body and the second convex body may each be about 3mm；The distance of the trough wall surface of the first groove 27 and the first convex body 28 is about It is 1mm, the distance of the trough wall surface of the second groove 29 and the second convex body 30 is also about 1mm.

In the present embodiment, shield 19 has the front end at the air intlet 25 of impeller 15 and the sky positioned at impeller 15 Rear end at gas outlet 26, the notch of the first groove 27 of shield 19 is located at the front end of shield 19.

Cable punching hole is provided with impeller housing 14（It is not drawn into figure）, also set on a bar 32 of motor shell 22 It is equipped with cable punching hole（It is not drawn into figure）, the cable punching hole on impeller housing 14 is aligned with the cable punching hole on bar 32 and makes the cable can Pass through, to facilitate cable to be connected on motor 16 from circuit arrangement 33.In the present embodiment, motor shell 22, impeller housing 14 Preferably formed by plastics with impeller 15.

The gas skirt 40 that the air-flow for being formed impeller 15 is converged, the lower end of gas skirt 40 are additionally provided with shell body 41 It is connected with motor shell 22, the output end 38 that the upper end of gas skirt 40 has air outlet slit 39 with shell body 41 is connected, and collects The air outlet slit of gas hood 40 is connected with the inner passage of nozzle 1.

Impeller housing 14 is supported by multiple supporting members 36.In fig. 4 it will be clear that supporting member 36 is bullet Spring element.In the present embodiment, the quantity of supporting member 36 for 4, i.e. spring element quantity be 4, spring element it is upper Hold and be formed in the projection 35 on the outer surface of impeller housing 14 to fix, the lower end of spring element is fixed in and is connected with shell body 41 Pedestal 37 on.Because supporting member 36 is spring element, spring element can effectively absorb from motor 16 and impeller 15 one A little vibrations and noise, otherwise these vibrations and noise pass to shell body 41 and amplify easily by impeller housing 14.

Base 10 is used for the surface where engaging fan 100.Pedestal 2 is also included for making base portion 8 relative to base 10 The dynamic swing mechanism of backswing, the swing mechanism includes syncmotor 34, and the operation of swing mechanism responds user by circuit arrangement 33 Button 13 is pressed to control.Hunting range is preferably between 60 ° and 120 °, and swing mechanism is arranged to per minute and performs 3 To 6 hunting periods.Cable for supplying power to fan（Do not draw）The hole being passed through on base 10 extends.

In the present embodiment, motor 16 is DC Brushless Motor, and the rotating speed of motor can respond user by circuit arrangement 33 Operation button 12 changes.

In order to operate fan 100, user presses button 11, responds the operation, and circuit arrangement 33 activates motor 16 to rotate Impeller 15.The rotation of impeller 15 bypasses air through air intlet 9 and enters in the shell body 41 of pedestal 2.The gas that impeller 15 is formed Stream after the convergence of gas skirt 40 in being transported to nozzle 1.

In nozzle 1, air-flow is divided to two strands to be advanced in the inner passage of main body 4.The air-flow quilt internally advanced in passage Air outlet slit 7 is launched, and the partial air around nozzle rolls up suction by the air-flow launched from air outlet slit 7, so from air The air-flows of the transmitting of outlet 7 are bonded the total air flow launched forward from nozzle 1 with the air-flow inhaled by volume.

While there has been shown and described that preferred embodiments of the invention are presently considered to be, but it will be apparent that this area Technical staff can carry out various changes and improvement, without departing from model of the invention as defined in appended claims Enclose.

Claims

1. a kind of fan, the fan includes pedestal and the nozzle being arranged on pedestal, and the pedestal includes impeller housing, is located at The impeller with air intlet and air outlet slit in impeller housing and the motor for rotary blade around the shaft, the leaf Wheel includes wheel hub, is connected to multiple blades of wheel hub and around wheel hub and the shield of blade, it is characterised in that impeller housing One in body and shield includes the first groove, and another in impeller housing and shield includes the first convex body, wherein, first is convex Body at least part is located in the first groove, the direction of the depth direction of the first groove parallel or perpendicular to rotating shaft.

2. the fan as described in claim l, it is characterised in that in impeller housing and shield not only includes that first is recessed Groove, also including the second convex body；Another in impeller housing and shield not only includes the first convex body, also including the second groove；Its In, the second convex body at least part is located in the second groove.

3. the fan as described in claim l, it is characterised in that in impeller housing and shield not only includes that first is recessed Groove, also including the second convex body；Another in impeller housing and shield not only includes the first convex body, also including the second groove；Its In, the second convex body at least part is located in the second groove；The part trough wall surface of the first groove belongs to the surface of the second convex body, the The part trough wall surface of two grooves belongs to the surface of the first convex body.

4. the fan as described in claim l, it is characterised in that the first groove includes the twisted rotary shaft groove of a week, and first is convex Body includes the twisted rotary shaft convex body of a week.

5. the fan as described in claim l, it is characterised in that the depth of the first groove is located between 2mm to 15mm.

6. the fan as described in claim l, it is characterised in that the width of the first groove is located between 4mm to 10mm.

7. the fan as described in claim l, it is characterised in that the cross section of the first groove includes rectangle.

8. the fan as described in claim l, it is characterised in that the cross section of the first convex body includes rectangle.

9. the fan as described in claim l, it is characterised in that the trough wall surface of the first groove is less than with the distance of the first convex body 1mm。

10. the fan as described in claim l, it is characterised in that shield includes the first groove, impeller housing includes that first is convex Body, shield includes the front end at the air intlet of impeller and the rear end at the air outlet slit of impeller, also, first is recessed The notch of groove is located at the front end of shield.