CN203130442U - Fan - Google Patents

Abstract

A fan comprises a base and a nozzle arranged on the base. The nozzle comprises an internal passage and an air outlet, the base comprises a shell, an impeller cover, an impeller, a motor casing, a motor and a first supporting component, the impeller cover is positioned in the shell, the impeller is positioned in the impeller cover, the motor casing is connected with the impeller cover, the motor is positioned in the motor casing, and the first supporting component is provided with a spring element, used for supporting the impeller cover in the shell, mounted on a pedestal connected to the shell, and connected with the impeller cover.

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.

It is that CN 101825105 B Chinese patents have been described a kind of fan that on June 13rd, 2012 was authorized publication number, this kind fan comprises pedestal and the nozzle that is installed on the pedestal, described pedestal comprises shell, is contained in described shell 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 for the inner passage that receives air-flow and is used for the relief opening of emission air-flow, impeller chimney by a plurality of supports support in pedestal.Each supporting element is installed in again on separately the stayed surface, and described stayed surface extends internally from the inner surface radial direction of pedestal.

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 arranged on the described pedestal; Described nozzle comprises for the inner passage that receives air-flow with for the relief opening of launching air-flow; Described pedestal comprises shell, be positioned at the impeller chimney of shell, be positioned at impeller chimney impeller, the motor casing that is connected with impeller chimney, be positioned at the motor of motor casing and have first supporting member of spring element; Described first supporting member is used for supporting described impeller and covers in the described shell, and described first supporting member is installed on the pedestal that is connected to described shell and with described impeller chimney and is connected.

What have advantage is, the situation that is used for supporting impeller chimney with a plurality of supporting elements is compared, and first supporting member with spring element is used for supporting impeller chimney can obviously reduce vibration and the noise that is delivered to shell from motor casing.

Preferably, described spring element has two ends, and an end of described spring element is connected with described pedestal, and the other end of described spring element is connected with described impeller chimney.

Preferably, described first supporting member comprises first fixed block and second fixed block that is connected with described spring element, described spring element is between first fixed block and second fixed block, and described first fixed block is connected with described impeller chimney, and described second fixed block is connected with described pedestal.Described first fixed block comprises the ring member; Described second fixed block also comprises the ring member.

Preferably, described first supporting member has a plurality of, and a plurality of first supporting members are arranged in the described shell with multi-angle in order to support the weight of impeller, impeller chimney, motor and motor casing equably.

Described fan can also comprise second supporting member with spring element and the pneumatic tube with inlet end and outlet side, described pneumatic tube is used for the formed air-flow of impeller is transported to nozzle, described second supporting member is installed on the described pedestal and with described pneumatic tube and is connected, the inlet end of described pneumatic tube is connected with described impeller chimney, and the outlet side of described pneumatic tube is connected with described nozzle.

Described pedestal can comprise circular plate, also can comprise the circular plate with central hole position.Described pedestal preferably extends internally from the inner surface radial direction of described shell.Described pedestal is one with described shell preferably.

Described fan can also comprise the sealing component between described pedestal and described impeller chimney.Described sealing component preferably includes one section flexible pipe, and an end of this flexible pipe is connected with pedestal, and the other end of this flexible pipe is connected with impeller chimney.

Described fan can limit at least one opening; Preferably, described nozzle limits 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 can be positioned near the place, front portion or front portion of described nozzle, also can be positioned near the rear portion of described nozzle.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.

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 side view of the fan shown in the figure l.

Fig. 3 is the front decomposition view of fan shown in Figure 1.

Fig. 4 is the decomposition side view of fan shown in Figure 1.

Fig. 5 is the amplification view of observing from the F direction of Fig. 3 that the A along Fig. 3-the A line intercepts.

Fig. 6 is the amplification view that B-the B line intercepts along Fig. 4.

Fig. 7 has showed the another kind replacement structure of fan shown in Figure 6.

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 of fan of the present utility model from the device forward observation, and Fig. 2 is the side view of fan shown in Figure 1, and Fig. 3 is the front decomposition view of fan shown in Figure 1, and Fig. 4 is the decomposition side view of fan shown in Figure 1.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. 4; 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 shell 12 that is formed on pedestal, and air is inhaled in the shell 12 from the fan outside by import 18.

Inner passage and relief opening 7 that nozzle 1 comprises the annular outer cover body 3 of non-closure, two input ends 45 and 46, limited by this annular outer cover body 3; Two input ends 45 of nozzle 1 and 46 two circular holes 21 that stretch into respectively on the both sides, top that are positioned at pedestal 2.Pedestal 2 and nozzle 1 define opening 8 jointly.

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.

Fig. 5 has showed the structure of nozzle interior.As can see from Figure 5, the toroidal shell 3 of nozzle comprises housing 4, housing 5 and housing 6; Inner passage 20 is limited jointly by housing 4, housing 5 and housing 6, and relief opening 7 is limited by the apparent surface of housing 4 with housing 5; Fixing device 19 is arranged in inner passage 20, and this fixing device 19 and relief opening 7 be D at intervals, and this fixing device 19 is integrated with housing 4 and housing 5, 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 fixing device 19 is 16mm with the distance B of relief opening 7.

Fig. 6 has showed the internal structure of pedestal 2.As can be seen from Figure 6, pedestal 2 comprises the base 13 with shell 14 and the base portion 11 with shell 12, is provided with the motor 24 of impeller chimney 22, impeller 23 and drives impeller 23 rotary works in the shell 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 shell 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 be conducive to decay some vibrations and the noise of motor and impeller to transmit or amplification to shell 12 and nozzle 1.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, this three-way pipe and shell 12 fixing (not drawing among the figure).And with reference to figure 3, this three-way pipe has a feed opening 48 and two outlet openings 38,39, the input end with feed opening 48 of this three-way pipe is connected with first pneumatic tube 40, this three-way pipe have outlet opening 38, two output terminals 41 of 39,42 and two input ends 45,46 of nozzle 1 be rotationally connected, and at these two places of being rotationally connected seal ring (not drawing among the figure) is set.

Impeller chimney 22 is supported by a plurality of first supporting members 31.Can be clear that in Fig. 6 this first supporting member 31 is a spring element.In the present embodiment, the quantity of first supporting member 31 is 6, and namely the quantity of 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 shell 12.This pedestal 321 is for having the circular plate of central hole position, and this circular plate and shell 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 shell 12 by impeller chimney 22 easily and amplify.

Fig. 7 has showed the another kind replacement structure of fan shown in Figure 6.As can be seen from Figure 7, the described structure of Fig. 7 is similar to Fig. 6, and just the length of pedestal 32 and spring element is different.In the present embodiment, the base plate 322 that pedestal 321 is connected with shell 12 is integrated, and the length of spring element is longer.Long spring element is conducive to absorb more vibration and noise from motor 24 and impeller 23.

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 shell 12 is connected, 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 shell 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, is transported to two input ends 45,46 and enter in the nozzle 1 of nozzle 1 respectively.

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.

Claims (10)

1. a fan is characterized in that, described fan comprises pedestal and the nozzle that is arranged on the described pedestal; Described nozzle comprises for the inner passage that receives air-flow with for the relief opening of launching air-flow; Described pedestal comprises shell, be positioned at the impeller chimney of shell, be positioned at impeller chimney impeller, the motor casing that is connected with impeller chimney, be positioned at the motor of motor casing and have first supporting member of spring element; Described first supporting member is used for supporting described impeller and covers in the described shell, and described first supporting member is installed on the pedestal that is connected to described shell and with described impeller chimney and is connected.

2. as the described fan of claim l, it is characterized in that described spring element has two ends, an end of described spring element is connected with described pedestal, and the other end of described spring element is connected with described impeller chimney.

3. fan as claimed in claim 1, it is characterized in that, described first supporting member comprises first fixed block and second fixed block that is connected with described spring element, described spring element is between first fixed block and second fixed block, described first fixed block is connected with described impeller chimney, and described second fixed block is connected with described pedestal.

4. as the described fan of claim l, it is characterized in that described first supporting member has a plurality of, a plurality of first supporting members are arranged in the described shell with multi-angle in order to support the weight of impeller, impeller chimney, motor and motor casing equably.

5. as the described fan of claim l, it is characterized in that, described fan also comprises second supporting member with spring element and the pneumatic tube with inlet end and outlet side, described second supporting member is installed on the described pedestal and with described pneumatic tube and is connected, the inlet end of described pneumatic tube is connected with described impeller chimney, and the outlet side of described pneumatic tube is connected with described nozzle.

6. as the described fan of one of claim l to 5, it is characterized in that described pedestal comprises circular plate.

7. as the described fan of one of claim l to 5, it is characterized in that described pedestal comprises the circular plate with central hole position.

8. as the described fan of one of claim l to 5, it is characterized in that described pedestal extends internally from the inner surface radial direction of described shell.

9. as the described fan of one of claim l to 5, it is characterized in that described pedestal and described shell are one.

10. as the described fan of one of claim l to 5, it is characterized in that described fan also comprises the sealing component between described pedestal and described impeller chimney.

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