CN103195692A

CN103195692A - Fan

Info

Publication number: CN103195692A
Application number: CN2013101552917A
Authority: CN
Inventors: 任文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-30
Filing date: 2013-04-30
Publication date: 2013-07-10
Anticipated expiration: 2033-04-30
Also published as: CN103195692B

Abstract

The invention relates to a fan. The fan comprises a synchronous motor, a base and a nozzle on the base, wherein either the base or the nozzle comprises a rotary shaft, the other one of the base and the nozzle comprises a shaft sleeve, the rotary shaft is located in the shaft sleeve, and the nozzle can swing relative to the base under the drive of the synchronous motor.

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 the ring nozzle that sets gradually from top to bottom, pedestal, rotating base and fixed underpan, described ring nozzle, pedestal and rotating base are installed as one, described rotating base also can be swung relatively with the coaxial setting of fixed underpan, described rotating base is provided with syncmotor, the output terminal of described syncmotor is connected with Knucle-gear, and described fixed underpan is provided with the tooth sector that is meshed with Knucle-gear.

When this kind fan was swung work, the required driving power of syncmotor was bigger, and is particularly all the more so when the volume and weight of pedestal is big.

Summary of the invention

The present invention aims to provide a kind of improved fan.This kind fan, it is characterized in that, described fan comprises syncmotor, pedestal and is positioned at nozzle on the described pedestal, one in described pedestal and the described nozzle comprises rotating shaft, in described pedestal and the described nozzle another comprises axle sleeve, wherein, described rotating shaft is arranged in described axle sleeve, and described nozzle can be with respect to described pedestal swing under the driving of described syncmotor.

In this kind fan, nozzle can swing to change the air-out direction of nozzle with respect to pedestal under the driving of syncmotor.Because the syncmotor of this kind fan is the nozzle segment of drive fan only, rather than drives the main body of nozzle segment of the prior art and pedestal, so the required driving power of its syncmotor is less; In addition, during the nozzle oscillation of this kind fan, pedestal is in transfixion, is conducive to placement and the safe handling of fan.

Preferably, described nozzle comprises rolling disc, and described pedestal comprises fixed tray, and one in described rolling disc and the described fixed tray comprises described rotating shaft and a plurality of through hole, and another in described rolling disc and the described fixed tray comprises described axle sleeve and a plurality of through hole.

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 nozzle comprises the rolling disc with described rotating shaft and a plurality of through holes, and described pedestal comprises the fixed tray with described axle sleeve and a plurality of through holes.

In another preferred embodiment, described nozzle comprises the rolling disc with described axle sleeve and a plurality of through holes, and described pedestal comprises the fixed tray with described rotating shaft and a plurality of through holes.

Preferably, described fan also comprises for the bounding means that stops described rotating shaft to move axially with respect to described axle sleeve.Adopt bounding means, be conducive to prevent the disengagement of nozzle and pedestal, the integral body that is conducive to fan moves or carries.

Described bounding means comprises screw, nut and fastener.Described fastener comprises snap ring and card pin.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.

In yet another preferred embodiment, described rotating shaft comprises the rotating shaft with central through bore, and described fan also comprises the cable that is used for power supply that extends by described central through bore and is used for the bounding means that the described rotating shaft of prevention moves axially with respect to described axle sleeve.

Preferably, described fan also comprises the gear that is connected with the output shaft of described syncmotor and the tooth bar that cooperates with described gear.Be conducive to improve the reliability of swing work like this.

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 nozzle preferably includes nozzle body and nozzle base, and described nozzle body can rotate with respect to nozzle base, thereby changes the air-out direction of nozzle at vertical plane.

Preferably, described rolling disc preferably becomes whole with the housing of nozzle base.Be conducive to reduce the number of components of fan like this, to improve the manufacturing efficient of fan.

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

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 is the schematic representation of the rolling disc part among Fig. 4.

Fig. 6 is the schematic representation of the fixed tray part 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 shell 8 and 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 limits 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 1 inside.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, and Fig. 5 and Fig. 6 are respectively rolling disc part and the fixed tray schematic representation partly among Fig. 4.From Fig. 4 to Fig. 6, can see, pedestal 2 comprises the device by the air-flow of nozzle 1 of being used to form that is positioned at shell 8, 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 18 rotary works, 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.

Pedestal 2 comprises fixed tray 46, and the syncmotor 51 of fan is fixing by screw and fixed tray 46, and fixed tray 46 comprises the axle sleeve 56 that is positioned at central authorities; Nozzle 1 comprises rolling disc 50, and rolling disc 50 is fixing by the housing 11 of screw and nozzle base, and rolling disc 50 comprises the rotating shaft 48 that is positioned at central authorities, and this rotating shaft 48 is arranged in axle sleeve 56 and can rotates with respect to axle sleeve 56; Bounding means 49 is fixing with rotating shaft 48, moves up and down with respect to axle sleeve 56 to stop rotating shaft 48.In the present embodiment, bounding means 49 is a screw.

The cable 55 that is used for power supply passes the hole that is positioned on the pedestal 2 and enters shell 8 and be electrically connected with circuit arrangement 31 from the outside, motor 19 and syncmotor 51 are electrically connected (not drawing among the figure) with circuit arrangement 31 respectively by cable; Gear 52 is fixed with the output shaft of syncmotor 51, article one, the tooth bar 53 of arc is fixing with rolling disc 50, gear 52 matches with tooth bar 53 and makes rolling disc 50 with respect to fixed tray 46 swings under the driving of syncmotor 51, thereby makes nozzle 1 swing to change the air-out direction of nozzle 1 with respect to pedestal 2.Rolling disc 50 and fixed tray 46 are preferably formed by plastics.

Can be clear that from Fig. 5 and Fig. 6 rolling disc 50 comprises rotating

shaft

48 and 4 through holes 57 that air feed stream passes through that are positioned at central authorities; Fixed tray 46 comprises

axle sleeve

56 and 3 through holes 58 that air feed stream passes through with center through hole 59, and wherein, center through hole 59 is inserted for rotating shaft 48.

In the present embodiment, pedestal 2 comprises user interface, and the user can press the button 14 of user interface and control the rotation of syncmotor 51, thereby controls nozzle 1 with respect to the swing of pedestal 2.Nozzle 1 with respect to the hunting range of pedestal 2 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.

Behind the guide ring 27 and outer shroud 26 guiding of impeller 18 formed air-flows by motor casing 20, enter the inner passage 5 of nozzle 1 then by the through hole 58 on the fixed tray 46 and the through hole 57 on the rolling disc 50.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.

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 syncmotor, pedestal and is positioned at nozzle on the described pedestal, one in described pedestal and the described nozzle comprises rotating shaft, in described pedestal and the described nozzle another comprises axle sleeve, wherein, described rotating shaft is arranged in described axle sleeve, and described nozzle can be with respect to described pedestal swing under the driving of described syncmotor.

2. as the described fan of claim l, it is characterized in that described nozzle comprises the rolling disc with described rotating shaft and a plurality of through holes, described pedestal comprises the fixed tray with described axle sleeve and a plurality of through holes.

3. as the described fan of claim l, it is characterized in that described nozzle comprises the rolling disc with described axle sleeve and a plurality of through holes, described pedestal comprises the fixed tray with described rotating shaft and a plurality of through holes.

4. as the described fan of one of claim l to 3, it is characterized in that described fan also comprises for the bounding means that stops described rotating shaft to move axially with respect to described axle sleeve.

5. as the described fan of one of claim l to 3, it is characterized in that described fan comprises that also wherein, described bounding means is connected with described rotating shaft for the bounding means that stops described rotating shaft to move axially with respect to described axle sleeve.

6. as the described fan of one of claim l to 3, it is characterized in that described fan comprises that also wherein, described bounding means comprises the fastener that is connected with described rotating shaft for the bounding means that stops described rotating shaft to move axially with respect to described axle sleeve.

7. as the described fan of one of claim l to 3, it is characterized in that described fan comprises that also wherein, described bounding means comprises screw for the bounding means that stops described rotating shaft to move axially with respect to described axle sleeve.

8. as the described fan of one of claim l to 3, it is characterized in that, described rotating shaft comprises the rotating shaft with central through bore, and described fan also comprises the cable that is used for power supply that extends by described central through bore and is used for the bounding means that the described rotating shaft of prevention moves axially with respect to described axle sleeve.

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

10. as the described fan of one of claim 2 to 3, it is characterized in that it is whole that described rolling disc becomes with the housing of nozzle base.