CN103195691A

CN103195691A - Fan

Info

Publication number: CN103195691A
Application number: CN2013101548678A
Authority: CN
Inventors: 任文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-28
Filing date: 2013-04-28
Publication date: 2013-07-10

Abstract

The invention relates to a fan. The fan comprises a base and a nozzle, wherein the base comprises a foundation and a base portion, either the foundation or the base portion comprises a rotary shaft with a central through hole, the other one of the foundation and the base portion comprises a shaft sleeve, and the rotary shaft is located in the shaft sleeve and can rotate relative to the shaft sleeve. The fan further comprises an electric cable and a limiting member, wherein the electric cable extends through the central through hole, and the limiting member is used for preventing the rotary shaft from axially moving relative to the shaft sleeve.

Description

Fan

Technical field

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

Background technique

On January 16th, 2013, notice of authorization number was the Chinese granted patent of CN 202673799 U (application number: 201220152845.9) disclose a kind of fan that does not expose fan blade, this kind fan comprises nozzle, rolling disc and fixed tray, and described rolling disc also can be relative to swinging or rotating with the coaxial setting of fixed tray.This kind fan is when swinging relatively, and the cable that can be used in power supply constantly carries out the distortion of wide-angle ground, the cable that fractures easily, and this will cause the normal use of fan and seriously influence.

Summary of the invention

The objective of the invention is to provide the not fan of frangibility of a kind of cable that is used in power supply.This kind fan, it is characterized in that, described fan comprises pedestal and the nozzle that is positioned on the described pedestal, described pedestal comprises base and the base portion that is positioned on the described base, one in described base and the described base portion comprises the rotating shaft with central through bore, in described base and the described base portion another comprises axle sleeve, described rotating shaft is arranged in described axle sleeve and can rotates with respect to described axle sleeve, and described fan also comprises by the cable that is used for power supply of described central through bore extension with for the bounding means that stops described rotating shaft to move axially with respect to described axle sleeve.

In fan of the present invention, the cable that is used for power supply extends by the central through bore of rotating shaft, and when the base portion of fan during with respect to base swing or rotation work, the angle that its cable twists significantly reduces, and can significantly improve the working life of cable; In addition, owing to have bounding means, rotating shaft can not skid off from axle sleeve, and base can not thrown off with base portion, thereby is conducive to movement or the carrying of fan.

Preferably, described base comprises fixed tray, and described base portion comprises rolling disc, and one in described fixed tray and the described rolling disc comprises described rotating shaft, and another in described fixed tray and the described rolling disc comprises described axle sleeve.

Described rotating shaft is preferably located in the central authorities of fixed tray or rolling disc, and described axle sleeve is preferably located in the central authorities of rolling disc or fixed tray.

In a preferred embodiment, described base comprises the fixed tray with described rotating shaft, and described base portion comprises the rolling disc with described axle sleeve.

In another preferred embodiment, described base comprises the fixed tray with described axle sleeve, and described base portion comprises the rolling disc with described rotating shaft.

Described bounding means comprises fastener and nut.Described fastener comprises snap ring and card pin; Described nut comprises internal threaded nut and outside thread nut.Described bounding means preferably is connected with described rotating shaft.

In a preferred embodiment, described bounding means comprises fastener, and described rotating shaft comprises the draw-in groove with this fastener coupling.

In another preferred embodiment, described bounding means comprises fastener, and described rotating shaft comprises the hole clipping with this fastener coupling.

Preferably, described base comprises the fixed tray with described rotating shaft, and described base portion comprises the rolling disc with described axle sleeve, and described bounding means is connected with rotating shaft, and described rolling disc is between the card part of bounding means and fixed tray.

Preferably, described base comprises the fixed tray with described axle sleeve, and described base portion comprises the rolling disc with described rotating shaft, and described bounding means is connected with rotating shaft, and described fixed tray is between the card part of bounding means and rolling disc.

Preferably, described pedestal comprises syncmotor, the gear that is connected with the output shaft of described syncmotor and the tooth bar that cooperates with described gear.

Preferably, described pedestal comprises impeller housing and the impeller that is positioned at impeller housing.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 7500rpm, is preferably located between the 1200rpm to 7000rpm.

Described nozzle preferably includes inner passage and relief opening and limits opening, and the air of fan outside is entrainmented by described opening by the air-flow of launching from relief opening.Described nozzle preferably includes ring nozzle, and the height of its nozzle is preferably between between the 200mm to 600mm, more preferably between between the 250mm to 500mm.

Described nozzle preferably includes inner shell part and external casing part, and they limit inner passage and the relief opening of described nozzle.Described external casing part preferably constitutes local overlapping inner shell part, can allow relief opening be limited between the outer surface and external casing internal surface partly of inner shell part like this.

Described relief opening is preferably slot-shaped relief opening, and the width of its relief opening in the outlet port is usually located between the 0.5mm to 6mm, is preferably located between the 1mm to 3mm.

Description of drawings

Referring now to the description of drawings embodiments of the present invention, in the accompanying drawings.

Figure l is the front schematic view of fan of the present invention.

Fig. 2 is the side view of the fan shown in the figure l.

Fig. 3 is the generalized section that intercepts from the A along Fig. 1-A line that the F direction of Fig. 1 is observed.

Fig. 4 is the generalized section along the lower part of the B among Fig. 1-fan that the B line intercepts.

Fig. 5 has showed the another kind replacement structure of the lower part of the fan among Fig. 4.

Embodiment

Figure l is the schematic representation of fan of the present invention from the device forward observation, and Fig. 2 is the side view of fan shown in Figure 1.As can be seen, fan 100 comprises pedestal 2 and the nozzle 1 that is positioned on the pedestal 2 from Fig. 1 to Fig. 2; Pedestal 2 comprises base portion 7 and is positioned at base 10 below the base portion 7 that base portion 7 comprises shell 8; Base portion 7 has air intlet 9, and air intlet 9 is for being formed on the form in a plurality of holes on the shell 8, and air is drawn in the shell 8 of pedestal 2 from external environment condition by air intlet 9.Inner passage 5 and the relief opening 4 that nozzle 1 comprises annular outer cover 3, limited by annular outer cover 3 also defines opening 6.

Pedestal 2 further comprises for the user interface that allows the user that fan 100 is operated.This user interface comprises a plurality of

buttons

12,13,14 of user-operable.

Fig. 3 has showed the structure of nozzle interior.As can see from Figure 3, the toroidal shell 3 of nozzle comprises inner shell part 15 and external casing part 16, inner shell part 15 comprises extended surface 43 and is used for the guiding surface 42 of steering flow, inner shell part 15 and external casing part 16 define inner passage 5 jointly, in inner passage 5, also be provided with a porous slab 40, this porous slab 40 has a plurality of perforation 41, and these perforation can make air-flow pass and the noise in the air-flow of decaying.Relief opening 4 is positioned near the rear portion of nozzle 1, and is set to by the preceding surface launching air-flow of opening 6 towards fan.Relief opening 4 has part to extend around opening 6 usually, preferably around opening 6.Relief opening 4 is limited by the outer surface of inner shell part 15 and lap or the relative part of the internal surface of external casing part 16 respectively, it is the form in slit, the outlet of relief opening 4 preferably has constant relatively width, and its width is between 0.5mm to 10mm.In the present embodiment, l.2mm the width of its outlet is about.

Fig. 4 has shown the internal structure of the lower part of fan shown in Figure 1.Base portion 7 comprises shell 8, in shell 8, be provided with the device that is used to form by the air-flow of nozzle 1, this device comprises the impeller housing 17 with air intlet 23 and air outlet slit 24, the impeller 18 that is positioned at impeller housing 17, be used for the motor 19 of drives impeller rotary work, be used for motor casing 20 and the vibrationproof member 28 of fixing motor 19, wherein, impeller housing 17 is whole with 8 one-tenth on shell.

Motor 19 is contained in the motor casing 20.Motor casing 20 comprises upper part 21 and lower part 22.The hole of the lower part 22 that is formed on motor casing 20 is passed in the rotating shaft 25 of motor 19, is connected in the rotating shaft 25 to allow impeller 18.In the present embodiment, motor casing 20, impeller housing 17 and impeller 18 are preferably formed by plastics.

Vibrationproof member 28 is connected on the outer shroud 26 and guide ring 27 of motor casing 20.In the present embodiment, vibrationproof member 28 is the rubber ring of a circle, the use of vibrationproof member 28 be conducive to decay vibration that motor 19 and impeller 18 produce from motor casing 20 to impeller housing 17 and shell 8 transmit.

Base 10 comprises fixed tray 46 and bottom 54, and bottom 54 is fixing by screw and fixed tray 46, and fixed tray 46 comprises the rotating shaft with central through bore 47 48 that is positioned at central authorities; Base portion 7 comprises rolling disc 50, and rolling disc 50 is fixing by screw and shell 8, and rolling disc 50 comprises the axle sleeve 56 that is positioned at central authorities; The cable 55 that is used for power supply passes the hole that is positioned on the base 10 from the outside and enters base 10, central through bore 47 by rotating shaft 48 extends in the base portion 7 and with circuit arrangement 31 and is electrically connected then, and motor 19 and syncmotor 51 are electrically connected (not drawing among the figure) with circuit arrangement 31 respectively by cable; Bounding means 49 is fixed with the upper end portion of rotating shaft 48, is used for stoping rotating shaft 48 to move axially with respect to axle sleeve 56 or skid off from axle sleeve 56; Gear 52 is fixed with the output shaft of syncmotor 51, article one, the tooth bar 53 of arc is arranged on the fixed tray 46, gear 52 and tooth bar 53 are engaged under the driving of syncmotor 51 rolling disc 50 are rotated or swing with respect to fixed tray 46, thereby base portion 7 and nozzle 1 are rotated or swing together, to change the air-out orientation of nozzle 1 with respect to base 10.Described rotating shaft 48 and described axle sleeve 56 are preferably formed by plastics.

In the present embodiment, bounding means 49 is a fastener, is provided with draw-in groove in the upper end portion of rotating shaft 48, and this fastener is arranged in the draw-in groove of rotating shaft 48, rolling disc 50 makes the rolling disc 50 can not axially sliding with respect to fixed tray 46 along rotating shaft 48 between the card of this fastener and fixed tray 46 part.

From Fig. 4, can be clear that, be used for the cable 55 of power supply by central through bore 47 extensions of rotating shaft 48.When syncmotor 51 drove rolling disc 50 with respect to fixed tray 46 rotations or swing, the angle of cable distortion can significantly reduce with respect to prior art, is conducive to significantly improve the working life of cable; Simultaneously, because this kind fan has bounding means 49, rotating shaft 48 can not skid off from axle sleeve 56, and base 10 can not thrown off with base portion 7, is conducive to movement or the carrying of fan.

In the present embodiment, base portion 7 comprises user interface, and the user can press the button 14 of user interface and control the rotation of syncmotor 51, thereby controls base portion 7 with respect to rotation or the swing of base 10.Base portion 7 with respect to the maximum magnitude of the swing of base 10 preferably between 60 ° and 120 °.

In the present embodiment, motor 19 is DC Brushless Motor, and the rotating speed of motor 19 can change by circuit arrangement 31 response user operating buttons 13.The maximum speed of motor 19 is preferably between 5000rpm to 7000rpm.

In order to operate fan 100, the user presses the button 12 of user interface, responds this operation, and circuit arrangement 31 activates motor 19 with rotary blade 18.The rotation of impeller 18 makes air enter in the shell 8 by air intlet 9.The user can come the rotating speed of governor motor 19 by control button 13, thereby regulates the speed that air enters from air intlet 9.

Impeller 18 formed air-flows enter nozzle 1 after by the guide ring 27 of motor casing 20 and outer shroud 26 guiding.In nozzle 1, air-flow is divided into two strands and advances in the inner passage 5 of nozzle 1.The air-flow of advancing in inner passage 5 is deflated mouthful 4 emissions.The air-flow of launching from relief opening 4 passes opening 6, part air around the while nozzle 1 is entrainmented by opening 6 by the air-flow of being launched from relief opening 4, and the combination from relief opening 4 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. 5 has showed the another kind replacement structure of the lower part of the fan among Fig. 4.Find out easily that in Fig. 5 present embodiment is similar to embodiment shown in Figure 4, just the position of the structure of fixed tray 46 and rolling disc 50 and bounding means 49 is different.In the present embodiment, fixed tray 46 comprises axle sleeve 56, and rolling disc 50 comprises the rotating shaft 48 with central through bore 47, and bounding means 49 is fixed with the underpart of rotating shaft 48.

The detailed description that the present invention is not limited to provide above.Those skilled in the art should be understood that deformation program of the present invention.

Claims

1. fan, it is characterized in that, described fan comprises pedestal and the nozzle that is positioned on the described pedestal, described pedestal comprises base and the base portion that is positioned on the described base, one in described base and the described base portion comprises the rotating shaft with central through bore, in described base and the described base portion another comprises axle sleeve, described rotating shaft is arranged in described axle sleeve and can rotates with respect to described axle sleeve, and described fan also comprises by the cable that is used for power supply of described central through bore extension with for the bounding means that stops described rotating shaft to move axially with respect to described axle sleeve.

2. as the described fan of claim l, it is characterized in that described base comprises the fixed tray with described rotating shaft, described base portion comprises the rolling disc with described axle sleeve.

3. as the described fan of claim l, it is characterized in that described base comprises the fixed tray with described axle sleeve, described base portion comprises the rolling disc with described rotating shaft.

4. as the described fan of one of claim l to 3, it is characterized in that described bounding means is connected with described rotating shaft.

5. as the described fan of one of claim l to 3, it is characterized in that described bounding means comprises the fastener that is connected with described rotating shaft.

6. as the described fan of one of claim l to 3, it is characterized in that described bounding means comprises fastener, described rotating shaft comprises the draw-in groove with described fastener coupling.

7. as the described fan of one of claim l to 3, it is characterized in that described bounding means comprises fastener, described rotating shaft comprises the hole clipping with described fastener coupling.

8. as the described fan of one of claim l to 3, it is characterized in that described pedestal also comprises syncmotor, the gear that is connected with the output shaft of described syncmotor and the tooth bar that cooperates with described gear.

9. fan as claimed in claim 2 is characterized in that, described rolling disc is between the card part of described bounding means and described fixed tray.

10. fan as claimed in claim 3 is characterized in that, described fixed tray is between the card part of described bounding means and described rolling disc.