CN203130443U

CN203130443U - Fan

Info

Publication number: CN203130443U
Application number: CN 201320106580
Authority: CN
Inventors: 任文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-10
Filing date: 2013-03-10
Publication date: 2013-08-14
Anticipated expiration: 2023-03-10

Abstract

A fan comprises a nozzle rotatably connected with a base. The base comprises a shell, an impeller and a motor, the nozzle comprises an annular casing, an internal passage, an air inlet and an air outlet, the annular casing comprises a first casing and a second casing which are provided with an internal casing portion and an external casing portion, the internal casing portion and the external casing portion of at least one of the first casing and the second casing jointly form a closed loop, and part of the shell is positioned in the closed loop.

Description

Fan

Technical field

The utility model relates to a kind of fan.Especially, but be not in exclusive manner, the utility model relates to a kind of family expenses fan, as the family expenses desk fan, flows for increasing the air circulation in indoor, office and other environment and air.

Background technique

Traditional family expenses fan generally includes motor and is driven one group of blade or the impeller be rotated motion by motor.This group blade is usually located in the cage, and this cage allows air-flow to pass, yet but stops human body to touch the blade of rotation.But in some cases, this kind fan also exists the risk that human body touches this group rotation blade.

On December 28th, 2011, notice of authorization number was described a kind of fan for the Chinese patent of CN 202091268 U, this kind fan comprises pedestal and the nozzle that is rotationally connected with pedestal, described pedestal comprises frame, is contained in described frame interior impeller chimney, the impeller that is positioned at impeller chimney and drives impeller are passed the air-flow of impeller chimney with generation motor, described nozzle comprises the toroidal shell of non-closure, the relief opening that is used for receiving the inner passage of air-flow and is used for the emission air-flow, and the two ends of the toroidal shell of this non-closure are rotationally connected by pivot member and described pedestal.The structure of nozzle of this kind fan built on the sand, nozzle breaks down when rotating or when stopping at a certain oblique position easily.

Summary of the invention

The utility model aims to provide a kind of improved fan.This kind fan is characterized in that, described fan comprises pedestal and the nozzle that is rotationally connected with described pedestal; Described pedestal comprises frame, be positioned at the impeller of described frame and drive the motor of described impeller rotary work; The relief opening that described nozzle comprises toroidal shell, is used for accepting the inner passage of air-flow, is used for importing the suction port of air-flow and is used for output gas flow; Wherein, described toroidal shell comprises first housing and second housing, described first housing and described second housing all comprise the inner shell part that is positioned at described frame and are positioned at the outer external casing part of described frame, in described first housing and described second housing, have at least inner shell part and the external casing part of a housing can constitute closed loop jointly, and described frame there is part to be positioned at the closed circuit that constitutes.

Because first housing and second housing of this kind fan have at least a housing can constitute integrated closed circuit jointly, and described frame has part to be positioned at the closed circuit that constitutes, therefore structure of nozzle is very firm, tight between nozzle and the pedestal contacts long-term maintenance the easily, can make nozzle with respect to the air-out orientation of pedestal normal rotation with the adjusting nozzle, nozzle is firmly remained on the orientation that sets or regulate with respect to pedestal.

Preferably, described first housing is positioned at the front portion of described nozzle, and described second housing is positioned at the rear portion of described nozzle, and described first housing and the described inner passage of the common restriction of described second housing.Described first housing preferably includes the relief opening for output gas flow, and nozzle can be from anterior output gas flow or the emission air-flow of nozzle like this.

Preferably, described first housing is positioned at the inboard of described nozzle, and described second housing is positioned at the outside of described nozzle, and described first housing and the described inner passage of the common restriction of described second housing.First housing and second housing preferably limit the relief opening that is positioned at the nozzle rear portion, and nozzle can be from rear portion output gas flow or the emission air-flow of nozzle like this.

Preferably, the inner shell of described first housing part and external casing part can constitute closed loop jointly, and the inner shell of described second housing part and external casing partly also can constitute the loop of closure jointly.Be conducive to like this make nozzle more firm.

Described pedestal can comprise for the pneumatic tube that the formed air-flow of described impeller is transported to nozzle, and described pneumatic tube preferably includes one section three-way pipe that separates for double, and described three-way pipe and described toroidal shell are rotationally connected.Adopt the three-way pipe that half-and-half separates, be conducive to three-way pipe is connected with described toroidal shell.

Described pedestal can comprise for the pneumatic tube that the formed air-flow of described impeller is transported to nozzle, described pneumatic tube preferably includes one section three-way pipe that separates for double, described three-way pipe and described toroidal shell are rotationally connected, and described three-way pipe and described frame are fixed.Three-way pipe and the toroidal shell fixing with frame are rotationally connected, and nozzle is rotated and stop bit reliably with respect to pedestal.Described stop bit refers to that nozzle stops on a certain orientation.

Described pedestal can also comprise the sealing component at the place that is rotationally connected that is arranged on described three-way pipe and described toroidal shell, uses sealing component to be conducive to realize being tightly connected of three-way pipe and toroidal shell.

The inner shell of described first housing partly preferably includes the cylndrical surface, and the inner shell part of described second housing also preferably includes the cylndrical surface.The inner shell of first housing or second housing partly comprises the cylndrical surface, is conducive to the toroidal shell of nozzle and frame or the pneumatic tube of pedestal and is rotationally connected.

Described fan preferably limits at least one opening.The air of fan outside is entrainmented by described opening by the air-flow of launching from described relief opening.The height of described nozzle is preferably between between the 200mm to 600mm, more preferably between between the 250mm to 500mm.

Described relief opening is preferably slot-shaped relief opening, and the width of its slot-shaped relief opening is usually between 0.5mm to 8mm, preferably between 1mm to 5mm.

Described motor can be alternating current motor, also can be DC Brushless Motor; Described impeller can be centrifugal impeller, can be mixed flow impeller also, is preferably mixed flow impeller.The rotating speed of described impeller is usually located between the 800rpm to 9000rpm, is preferably located between the 1200rpm to 7500rpm.

Described fan can be desk fan, can be wall fan, can be ceiling fan, can be flooring fan, can also be the fan of other type.

Description of drawings

Referring now to description of drawings mode of execution of the present utility model, in the accompanying drawings.

Figure l is the front schematic view of fan of the present utility model.

Fig. 2 is the decomposition elevation of fan shown in Figure 1.

Fig. 3 is the decomposing rearview of fan shown in Figure 1.

Fig. 4 is the side view of the fan shown in the figure l.

Fig. 5 is the decomposition side view of fan shown in Figure 1.

Fig. 6 is the amplification view of observing from the F direction of Fig. 2 that the A along Fig. 2-the A line intercepts.

Fig. 7 is the amplification view that B-the B line intercepts along Fig. 5.

Fig. 8 is fan shown in Figure 1 turns to a certain position forward at nozzle side view.

Fig. 9 is fan shown in Figure 1 rotates back to a certain position at nozzle side view.

Embodiment

Figure l is the schematic representation from the fan of the present utility model of device forward observation, Fig. 2 and Fig. 3 are respectively decomposition elevation and the decomposing rearviews of fan shown in Figure 1, Fig. 4 is the side view of the fan shown in the figure l, Fig. 5 is the decomposition side view of fan shown in Figure 1, and Fig. 6 has showed the structure of nozzle interior.As can be seen, fan 50 comprises pedestal 2 and the nozzle 1 that is positioned on the pedestal 2 from Fig. 1 to Fig. 6; Pedestal 2 comprises base 13 and the base portion 11 that is positioned on the base 13.Pedestal 2 has import 18, and import 18 is the form in a plurality of holes on the frame 12 that is formed on pedestal, and air is inhaled in the frame 12 from the fan outside by import 18.Pedestal 2 and nozzle 1 define opening 8.

Nozzle 1 comprises closed toroidal shell 3, inner passage 20, suction port 4 and relief opening 7.Toroidal shell 3 comprises first housing 5 and second housing, 6, the first housings 5 and second housing, the 6 common inner passages 20 that limit.First housing 5 comprises the inner shell part 5b that is positioned at frame 12 and the external casing part 5a that is positioned at outside the frame 12, the inner shell part 5b of first housing 5 and external casing part 5a have constituted closed loop jointly, and frame 12 has part to be positioned at the closed circuit that is made of inner shell part 5b and external casing part 5a.Second housing 6 comprises the inner shell part 6b that is positioned at frame 12 and the external casing part 6a that is positioned at outside the frame 12, the inner shell part 6b of second housing 6 and external casing part 6a have also constituted closed loop jointly, and frame 12 also has part to be positioned at the closed circuit that is made of inner shell part 6b and external casing part 6a.Because nozzle 1 has and has integratedly constituted first housing 5 of closed circuit and had integrated second housing 6 that has constituted closed circuit, so the structure of nozzle 1 is very firm; In addition, the frame 12 of pedestal has part to be positioned at the closed circuit that constitutes, and is conducive to make nozzle and pedestal to keep closely contacting reliably, thereby realizes normal rotation and the stop bit of nozzle.

Pedestal 2 further comprises for the user interface that allows the user to operate fan 50.This user interface comprises a plurality of

buttons

15,16,17 of user-operable.

Find out easily that from Fig. 5 pedestal 2 comprises two circular holes 21 that are located thereon on the portion both sides, toroidal shell 3 has part to be arranged in two circular holes 21.

Can be clear that from Fig. 6 first housing 5 of nozzle 1 is positioned at nozzle 1 front portion, second housing 6 of nozzle 1 is positioned at the rear portion of nozzle 1; First housing 5 is wall 511, wall 512 and fixed block 19 integrated housings; Relief opening 7 is limited by the apparent surface of wall 511 with wall 512; Fixed block 19 is arranged in inner passage 20, and fixed block 19 and relief opening 7 be D at intervals, and relief opening 7 is positioned at the front end place of nozzle 1, and is set to the preceding surface launching air-flow towards fan.In the present embodiment, relief opening 7 is slot-shaped relief opening, and the width of its relief opening 7 is 1.2mm, and fixed block 19 is 16mm with the distance B of relief opening 7.

Fig. 7 has showed the internal structure of pedestal 2.As can be seen from Figure 7, pedestal 2 comprises the base 13 with frame 14 and the base portion 11 with frame 12, is provided with the motor 24 of impeller chimney 22, impeller 23 and drives impeller 23 rotary works in the frame 12 of base portion 11.Impeller 23 is positioned at impeller chimney 22, and impeller chimney 22 comprises import 26, outlet 27, inlet end 28 and outlet side 29.

Motor 24 is contained in the motor casing 34.Motor casing 34 comprises upper part 36 and lower part 35, and upper part 36 is fixed and motor 24 is fixed therein by screw and lower part 35.The hole of lower part 35 bottoms that are formed on motor casing 34 is passed in the rotating shaft 31 of motor 24, is connected in the rotating shaft 31 to allow impeller 23.The upper part 36 of motor casing 34 also comprises a plurality of fixing rods 37, and motor 24 is fixing with impeller chimney 22 by motor casing 34.

In the present embodiment, impeller 23 and impeller chimney 22 are configured as when impeller 23 and motor casing 34 are supported by impeller chimney 22, the blade tips of impeller 23 is very near the internal surface of impeller chimney 22, but do not touch this internal surface, and impeller 23 is roughly coaxial with impeller chimney 22.

Impeller chimney 22 is provided with cable perforation (not drawing among the figure), on a fixing rod 37 of motor casing 34, also be provided with cable perforation (not drawing among the figure), cable perforation on the impeller chimney 22 is aimed at the cable perforation on the fixing rod 37 cable can be passed, and makes things convenient for cable to be connected on the motor 24 from circuit arrangement 44.In the present embodiment, motor casing 34, impeller chimney 22 and impeller 23 are preferably formed by plastics.

In frame 12, also be provided with the pneumatic tube that impeller 23 formed air-flows is transported to nozzle 1.This pneumatic tube comprises first pneumatic tube 40 and second pneumatic tube 43.First pneumatic tube 40 is preferably one section flexible pipe, as one section rubber pipe, uses flexible pipe to be conducive to decay some vibrations of motor 24 and impeller 23 and noise to frame 12 and nozzle 1 transmission.One end of this first pneumatic tube 40 is connected with motor casing 34, and the other end of this first pneumatic tube 40 is connected with second pneumatic tube 43.Second pneumatic tube 43 is a three-way pipe that separates for double, the two halves of this three-way pipe can use screw or other fixed block to be fixed together to make it become a complete three-way pipe, this three-way pipe has a feed opening 48 and two

outlet openings

38,39, this three-way pipe and frame 12 fixing (not drawing among the figure).And referring to figs. 2 and 3, the major part of the major part of the inner shell part 5b of first housing 5 and the inner shell part 6b of second housing 6 all is arranged in the inside of this three-way pipe and closely contacts (figure does not draw) with the internal surface of this three-way pipe.Preferably, between the internal surface of the outer surface of inner shell part 5b and inner shell part 6b and this three-way pipe seal ring is set, its seal ring is preferably the rubber ring of the non-closure with breach.

Impeller chimney 22 is supported by a plurality of first supporting members 31.Can be clear that in Fig. 7 this first supporting member 31 is a spring element.In the present embodiment, the quantity of first supporting member 31 is 6, the quantity that is spring element is 6, and the upper end of spring element is fixing with the projection 30 that is formed on impeller chimney 22 outer surfaces, and the lower end of spring element is fixed on the pedestal 321 that is connected with frame 12.This pedestal 321 is for having the circular plate of central hole position, and this circular plate and frame 12 with central hole position is integrated.Because first supporting member 31 is spring element, spring element can effectively absorb some vibrations and the noise from motor 24 and impeller 23, otherwise these vibrations and noise pass to frame 12 by impeller chimney 22 easily and amplify.

Base 13 is used for engaging the surface at fan 50 places.Circuit arrangement 44 on base portion 11 comprises user interface and is arranged on the base plate 322 that is connected with frame 12, circuit arrangement 44 is used for the various operations of response user interface.Pedestal 2 comprises that also be used to the swing mechanism that base portion 11 is swung back and forth with respect to base 13, this swing mechanism comprises syncmotor 47, and the operation of swing mechanism is controlled by the button 17 that circuit arrangement 44 response users press user interface.Hunting range is preferably between 60 ° and 120 °, and swing mechanism is set to per minute and carries out 3 to 6 deflection periods.Passing the hole that is formed on the base 13 for the main power line (not drawing) that supplies power to fan extends.

In the present embodiment, motor 24 is DC Brushless Motor, and the rotating speed of motor can change by circuit arrangement 44 response user operation knobs 16.The maximum speed of motor 24 is preferably in the scope of 6000rpm to 8000rpm.

In order to operate fan, the user presses the button 15 of user interface, responds this operation, and circuit arrangement 44 activates motor 24 with rotary blade 23.The rotation of impeller 23 makes air enter in the frame 12 of pedestal 2 by import 18.The user can be by handling the rotating speed that knob 16 comes governor motor 24.Pneumatic tube receives from impeller 23 formed air-flows and is divided into two strands and is transported in the nozzle 1.

In nozzle 1, two strands of air-flows are advanced in the inner passage 20 of nozzle respectively.The air-flow of advancing in inner passage 20 is deflated mouthful 7 emissions, part air around the fan is entrainmented by opening 8 by the air-flow of being launched from relief opening 7, and the combination from relief opening 7 air-flow of launching and the air-flow that is entrainmented constitutes the total air flow of launching forward from nozzle 1 like this.

Fig. 8 has showed that fan shown in Figure 1 turns to the side view of a certain position forward at nozzle 1, and Fig. 9 has showed that fan shown in Figure 1 rotates back to the side view of a certain position at nozzle 1.Find out easily that from Fig. 8 and Fig. 9 nozzle 1 can rotate relative to pedestal 2.This rotation can be regulated the air-out orientation of nozzle 1, and the air-out orientation of nozzle 1 is changed at vertical plane, to satisfy user's different demands.

Although showed and described and thought preferred embodiment of the present utility model at present, apparent, those skilled in the art can carry out various changes and improvements, and does not deviate from the scope of the present utility model that is limited by appended claims.For example, pedestal 2 can comprise the strut of hollow, and nozzle 1 is rotationally connected with described strut.

Claims

1. a fan is characterized in that, described fan comprises pedestal and the nozzle that is rotationally connected with described pedestal; Described pedestal comprises frame, be positioned at the impeller of described frame and drive the motor of described impeller rotary work; The relief opening that described nozzle comprises toroidal shell, is used for accepting the inner passage of air-flow, is used for importing the suction port of air-flow and is used for output gas flow; Wherein, described toroidal shell comprises first housing and second housing, described first housing and described second housing all comprise the inner shell part that is positioned at described frame and are positioned at the outer external casing part of described frame, in described first housing and described second housing, have at least inner shell part and the external casing part of a housing can constitute closed loop jointly, and described frame there is part to be positioned at the closed circuit that constitutes.

2. as the described fan of claim l, it is characterized in that described first housing is positioned at the front portion of described nozzle, described second housing is positioned at the rear portion of described nozzle, and described first housing and the described inner passage of the common restriction of described second housing.

3. as the described fan of claim l, it is characterized in that described first housing is positioned at the inboard of described nozzle, described second housing is positioned at the outside of described nozzle, and described first housing and the described inner passage of the common restriction of described second housing.

4. as the described fan of one of claim l to 3, it is characterized in that, the inner shell of described first housing part and external casing part can constitute closed loop jointly, and the inner shell of described second housing part and external casing partly also can constitute the loop of closure jointly.

5. as the described fan of one of claim l to 3, it is characterized in that, described pedestal also comprises for the pneumatic tube that the formed air-flow of described impeller is transported to described nozzle, and described pneumatic tube comprises one section three-way pipe that separates for double, and described three-way pipe and described toroidal shell are rotationally connected.

6. as the described fan of one of claim l to 3, it is characterized in that, described pedestal also comprises for the pneumatic tube that the formed air-flow of described impeller is transported to described nozzle, described pneumatic tube comprises one section three-way pipe that separates for double, described three-way pipe and described toroidal shell are rotationally connected, and described three-way pipe and described frame are fixed.

7. as the described fan of one of claim l to 3, it is characterized in that the inner shell of described first housing partly comprises the cylndrical surface.

8. as the described fan of one of claim l to 3, it is characterized in that the inner shell of described second housing partly comprises the cylndrical surface.

9. fan as claimed in claim 5 is characterized in that, described pedestal also comprises the sealing component at the place that is rotationally connected that is arranged on described three-way pipe and described toroidal shell.

10. fan as claimed in claim 6 is characterized in that, described pedestal also comprises the sealing component at the place that is rotationally connected that is arranged on described three-way pipe and described toroidal shell.