CN104500371A - Fan - Google Patents

Abstract

A fan comprises a base, a nozzle and a mechanized inclined mechanism; the base comprises an impeller and a first motor; the nozzle comprises an internal passage and an air outlet; the internal passage extends along an orifice; air from outside of the fan is sucked by air ejected from the air outlet and passes through the orifice; the mechanized inclined mechanism is used for driving at least part of the nozzle to move around an inclined axis relative to the base; the mechanized inclined mechanism comprises a second motor, a driving member and a driven member engaged with the driving member; the driven member is connected with the nozzle. Variation of the air outgoing direction of the fan can be mechanically adjusted in a vertical plane.

Description

Fan

Technical field

The present invention relates to a kind of fan.

Background technique

Traditional fan generally includes one group of blade rotating around the shaft and for driving this group blade rotary to produce the motor of air-flow.This group blade is usually located in cage, and this cage allows air-flow to pass, and stops human contact to arrive the blade of this group rotation.

This kind of fan can be various sizes and shape.Such as, ceiling fan can have the diameter of at least l000mm, and usually mounted on the ceiling to provide downward air-flow in a hanging manner.Again such as, desk fan has the diameter of 300mm usually, and usually freely erects and be easy to mobile.The fan of other type can be positioned on floor or be arranged on wall.

The shortcoming of this kind of fan be air-flow that rotation blade produces normally uneven or " springing up ".This is uncomfortable for the user.Although another shortcoming is rotation blade be positioned at cage, in some cases, human body touches the danger of rotation blade in addition.

On November 6th, 2013, Authorization Notice No. was the Chinese patent (application number: 201320275243.7) disclose a kind of fan of CN203272078U.The nozzle that this kind of fan comprises pedestal and be connected with described pedestal, described nozzle comprises base portion and main body, described main body can relative to described base portion never oblique position slide into oblique position, the first component that described base portion comprises suction tude and is connected with described suction tude, described main body comprise frame, for accept air-flow inner passage, for launching the relief opening of air-flow and the opening for allowing described suction tude stretch into, wherein, described first component has at least part to be positioned at described frame.

This kind of fan energy manual tune main body, relative to the inclination of base portion, makes the air-out orientation of fan in vertical plane, change to meet the different demands of user.But main body regulates relative to the inclination of base portion needs manually-operable, and therefore its troublesome poeration, limits the using scope of this kind of fan.

Summary of the invention

The object of the invention is to provide-kind of new fan.This kind of fan, is characterized in that, it comprises: pedestal, and this pedestal comprises the first motor of impeller and drives impeller rotary work; Nozzle, this nozzle comprises the inner passage for accepting air-flow and the relief opening for launching air-flow, and this inner passage gets around hole and extends, and the partial air from fan outside is aspirated by the air penetrated from described relief opening and passes described perforate; Vehicularized leaning device, move around tilt axis relative to described pedestal for being urged to small part nozzle, this leaning device comprises the second motor, the driving component driven by the second motor and the driven member engaged with described driving component, and wherein, described driven member is connected with described nozzle.

Because fan of the present invention makes nozzle carry out the adjustment of inclination relative to described pedestal by vehicularized leaning device, make the air-out direction of nozzle can adjust or change to motorization in vertical plane, significantly improve convenience and the flexibility of operation.

Driving component and driven member preferably formed by plastics.Driving component can be arranged as the outer peripheral portion engaging driven member; Also the inner peripheral portion engaging driven member can be arranged as.

In a preferred embodiment, driving component comprises gear, and driven member comprises arc-shaped rack; In another preferred embodiment, driving component comprises gear, and driven member comprises one group of tooth, for engaging the tooth of described driving component.

Pedestal generally includes bottom base and is positioned at the top base on bottom base, and described top base comprises top base shell, and described second motor and described driving component can be arranged on different positions.In a preferred embodiment, the second motor and driving component are all arranged in described inner passage.In another preferred embodiment, the second motor is positioned at top base shell, and driving component has at least part to be positioned at top base shell.

Nozzle can comprise base portion and main body, and main body is usually located on base portion.In a preferred embodiment, the base portion of nozzle is connected with pedestal, and driven member is connected with the main body of nozzle, and described leaning device moves around tilt axis relative to pedestal for driving main body.

The base portion of nozzle can comprise pneumatic tube, described main body generally includes main body cover and the first opening for allowing described pneumatic tube stretch into, described pneumatic tube is preferably slidably connected with described main body cover, when described main body is moved around tilt axis relative to described pedestal, described first opening towards changing.

Pedestal can also comprise the second opening stretched into for described driven member.In a preferred embodiment, the second motor and driving component are all positioned at top base shell, and driven member has part to be stretched in top base shell to engage described driving component by the second opening.

Preferably, nozzle comprises base portion and main body, and the base portion of nozzle is connected with pedestal, and driven member is connected with the main body of nozzle, second motor is arranged in described inner passage and is connected with the base portion of nozzle, and described leaning device moves around tilt axis relative to described pedestal for driving described main body.

Preferably, tilt angle when described main body is in maximum inclining position relative to described pedestal between 6 ° to 30 °, more preferably between 8 ° to 20 °.

For the ease of manufacturing and assembling, the rear portion bulb portion that described pneumatic tube preferably includes anterior bulb portion and is connected with anterior bulb portion.

For the ease of carrying out banking motion, preferably, one in described pneumatic tube and described main body cover comprises slidable bar, and another in described pneumatic tube and described main body cover comprises the sliding-groove engaged with described slidable bar.

Nozzle preferably includes ring nozzle, the height of its nozzle preferably between 200mm to 600mm, more preferably between 250mm to 500mm.

Relief opening preferably includes slot-shaped relief opening, and its relief opening is usually located between 0.5mm to 8mm at the width in outlet port, is preferably located between 1mm to 3.5mm.

Impeller can be centrifugal impeller, can be also mixed flow impeller, be preferably mixed flow impeller; The rotating speed of impeller is usually located between 800rpm to 7500rpm, is preferably located between 1200rpm to 7000rpm.Motor can be DC Brushless Motor, also can be alternating current motor.

Accompanying drawing explanation

Figure l is the schematic diagram of fan of the present invention.

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

Fig. 3 is the schematic diagram of the nozzle of the fan shown in figure l.

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

Fig. 5 is the schematic diagram of the pedestal of the fan shown in figure l.

Fig. 6 is the sectional view of amplification of the nozzle intercepted along the line A-A in Fig. 3.

Fig. 7 is the sectional view of amplification of the nozzle intercepted along the line B-B in Fig. 4.

Fig. 8 is the schematic perspective view of the amplification of the base portion of the nozzle shown in Fig. 3.

Fig. 9 is the sectional view of amplification of the pedestal of the fan intercepted along the line C-C in Fig. 5.

Figure 10 a is the schematic diagram of the amplification of driven member in the fan shown in Fig. 2.

Figure 10 b is the schematic perspective view of the amplification of the second motor in the pedestal shown in Fig. 9.

Figure 10 c is the schematic perspective view of the amplification of driving component in the pedestal shown in Fig. 9.

Figure 11 is the side view of the fan shown in Fig. 1 when the main body of nozzle is tilted forward to a certain position.

Figure 12 is that the fan shown in Fig. 1 tilts backwards to side view during a certain position in the main body of nozzle.

Embodiment

Figure l is the schematic diagram of the fan of the present invention from device forward observation, and Fig. 2 is the side view of the fan shown in figure l.As can be seen from Fig. 1 and Fig. 2, the nozzle 1 that fan 100 comprises pedestal 2 and is positioned on pedestal 2.Pedestal 2 comprises bottom base 10 and is positioned at the top base 8 on bottom base 10, upper base portion 8 comprise air intlet 9 and user-operable multiple buttons 11,12,13a and 13b, air intlet 9 is for being formed in the form in the multiple holes on top base shell.The air of fan outside is inhaled in top base 8 by air intlet 9.

Fig. 3 is the schematic diagram of the nozzle of the fan shown in figure l, and Fig. 4 is the side view of the nozzle of the fan shown in figure l.As can be seen from Fig. 3 and Fig. 4, nozzle 1 comprises main body 4 and base portion 3.And with reference to figure 6, Fig. 7 and Fig. 8, base portion 3 comprises pneumatic tube 15, pneumatic tube 15 comprises air inlet section 15a and is positioned at the gassed-out zone 15b in described air inlet section 15a downstream, and air inlet section 15a comprises suction port 45, and gassed-out zone 15b comprises air outlet 46; Pneumatic tube 15 also comprises two slidable bars 48, and the outer surface of gassed-out zone 15b comprises first surface 41, second curved surface 42, first plane 50a and the second plane 50b, and wherein, first surface 41 and the second curved surface 42 are cylndrical surface; Pneumatic tube 15 is made up of anterior bulb portion 16a and rear portion bulb portion 16b, pneumatic tube 15 is divided into two-part and is shaped, to assemble with main body 4.

Main body 4 comprise main body cover 6, for accept air-flow inner passage 14, for launching the relief opening 7 of air-flow, the first opening 40 for allowing pneumatic tube 15 stretch into.Main body cover 6 comprises two sliding-grooves 47, and this sliding-groove 47 engages with the slidable bar 48 of pneumatic tube, can carry out banking motion with the main body 4 realizing nozzle relative to base portion 3 or pedestal 2.The internal surface of main body cover 6 comprises the 3rd curved surface 43 and the 4th curved surface 44,3rd curved surface 43 and the 4th curved surface 44 respectively with first surface 41 and second curved surface 42 sliding contact of pneumatic tube 15, make the main body 4 of nozzle can carry out banking motion relative to base portion 3 or pedestal 2 smoothly, and prevent air-flow from leaking.

In Fig. 6 and Fig. 8, can clearly be seen that, the cross sectional area of the pore 49 of the gassed-out zone 15b of pneumatic tube 15 increases from the beginning 52 of gassed-out zone gradually to air outlet 46, the turbulent flow being conducive to like this making to enter from pneumatic tube 15 inner passage 14 of main body 4 reduces, thus the flow loss reducing air-flow and the noise produced.

In the present embodiment, the length D of gassed-out zone 15b is 15mm, the shape of the cross section of the pore 49 of gassed-out zone 15b is rectangle, and the pore 49 of gassed-out zone 15b is about 145% of the cross sectional area of pore 49 in beginning 52 of gassed-out zone 15b at the cross sectional area at air outlet 46 place.

In the present embodiment, main body 4 has the main body cover 6 of annular and defines the perforate 5 being positioned at central authorities, relief opening 7 is positioned at the front portion of main body 4 and is set to launch air-flow before fan, and the air-flow launched from relief opening 7 to be roughly parallel to the direction of axis X in the outlet port of relief opening 7; The front housing part 6a that main body cover 6 comprises rear housing portion 6b and is made up of housing 611, housing 612 and multiple fixed block (not shown in FIG.), relief opening 7 limited by the apparent surface of housing 611 with housing 612, fixed block be arranged in inner passage 14 and with the outlet of relief opening 7 at intervals, housing 611, housing 612 and fixed block are integrally, namely integrated.

Main body cover 6 is made up of front housing part and rear housing portion usually, and pneumatic tube 15 is made up of anterior bulb portion 16a and rear portion bulb portion 16b, assembles in the first opening 40 being conducive to pneumatic tube 15 to go deep into smoothly main body cover 6; Because the size of the air inlet section of pneumatic tube 15 wants large compared with the first opening 40 of main body cover 6 usually, assemble in the first opening 40 that integrally formed pneumatic tube 15 is difficult to go deep into smoothly main body cover 6.

In the present embodiment, relief opening 7 is slot-shaped relief opening, and its relief opening 7 is about 1.5mm at the width in outlet port, and the distance between the outlet of fixed block and relief opening 7 is about 5mm.

Fig. 5 is the schematic diagram of the pedestal of the fan shown in figure l, and Fig. 9 illustrates the internal structure of pedestal.As can be seen from Fig. 5 and Fig. 9, pedestal 2 comprises bottom base 10 and has the top base 8 of shell 21, is provided with the motor 24 of impeller chimney 22, impeller 23 and drives impeller 23 rotary work in the shell 21 of top base 8.Impeller 23 is positioned at impeller chimney 22, and impeller chimney 22 comprises air intlet 34 and air outlet slit 35.

First motor 24 is contained in motor casing 25.Motor casing 25 comprises upper part 26 and lower part 27, and upper part 26 is fixed by screw and lower part 27 and is fixed therein by the first motor 24.The rotating shaft 38 of the first motor 24 is positioned at the hole of bottom through the lower part 27 being formed in motor casing 25, be connected in rotating shaft 38 to allow impeller 23.The upper part 26 of motor casing 25 also comprises multiple fixing rod 31, first motor 24 to be fixed with impeller chimney 22 by multiple fixing rods 31 of motor casing 25.

In the present embodiment, impeller 23 and impeller chimney 22 are configured as when impeller 23 and motor casing 25 are supported by impeller chimney 22, the blade tips of impeller 23 very close to the internal surface of impeller chimney 22, but does not touch this internal surface, and impeller 23 is roughly coaxial with impeller chimney 22.

Impeller chimney 22 is provided with cable punching hole (not shown in FIG.), a fixing rod 31 of motor casing 25 is also provided with cable punching hole (not shown in FIG.), cable punching hole on impeller chimney 22 is aimed at the cable punching hole on fixing rod 31 and cable can be passed, and is connected to the first motor 24 from circuit arrangement 37 to facilitate cable.In the present embodiment, motor casing 25, impeller chimney 22 and impeller 23 preferably formed by plastics.

The gas skirt 32 of the air-flow convergence formed by impeller 23 is also provided with in shell 21, the lower end of gas skirt 32 is connected with motor casing 25, the output terminal 33 that upper end and the shell 21 of gas skirt 32 have air outlet slit 39 is connected, and the outlet of gas skirt 32 is communicated with the pneumatic tube 15 of nozzle 1.Preferably, between gas skirt 32 and pneumatic tube 15, be connected with one section of flexible pipe, as one section of rubber pipe, use flexible pipe can decay motor and impeller some vibration and noise transmit to nozzle 1; Pneumatic tube 15 is connected with the output terminal 33 of shell 21 preferably by fastener, and fastener can make pneumatic tube 15 throw off with the output terminal 33 of shell 21 by applying pressure.

The cross section of the inner passage of gas skirt 32 comprises circle and rectangle.Preferably, the cross section of the partial interior passage of gas skirt 32 is circular, and the cross section of the partial interior passage of gas skirt 32 is round rectangle.In a preferred embodiment, the cross section of the inner passage of gas skirt 32 is transitioned into round rectangle along the flow direction of air-flow gradually from circle.

Impeller chimney 22 support by multiple supporting member 29.Can be clear that in fig .9, supporting member 29 is a spring element.In the present embodiment, the quantity of supporting member 29 is 4, and namely the quantity of spring element is 4, and the upper end of spring element is fixed with the projection 30 be formed on impeller chimney 22 outer surface, and the lower end of spring element is fixed on the pedestal 28 that is connected with shell 21.Because supporting member 29 is spring element, spring element effectively can absorb some vibration and noises from motor 24 and impeller 23, otherwise these vibrations and noise easily pass to shell 21 by impeller chimney 22 and amplify.

Bottom base 10 is for engaging the surface at fan 100 place.Pedestal 2 also comprises the swing mechanism for making top base 8 swing back and forth relative to bottom base 10, and this swing mechanism comprises the 3rd motor 36, and the operation of swing mechanism responds user by circuit arrangement 37 and presses the button 13a to control.Hunting range is preferably between 60 ° and 120 °, and swing mechanism is set to 3 to 6 deflection periods of execution per minute.Cable (not drawing) for supplying power to fan extends through the hole be formed on bottom base 10.

In the present embodiment, the first motor 24 is DC Brushless Motor, and the rotating speed of the first motor 24 responds user operation button 12 by circuit arrangement 37 and changes.

In order to operate fan 100, user presses the button 11, responds this operation, and circuit arrangement 37 activates the first motor 24 with rotary blade 23.The rotation of impeller 23 makes air be entered in the shell 21 of pedestal 2 by air intlet 9.The air-flow that impeller 23 is formed is transported in nozzle 1 after gas skirt 32 converges.

In nozzle 1, air-flow divides two strands to advance in the inner passage 14 of main body 4.The air-flow of advancing in inner passage 14 launch by relief opening 7, the partial air around nozzle entrainment by the air-flow that penetrates from relief opening 7, the air-flow penetrated from relief opening 7 like this be bonded by the air-flow that entrainments the total air flow launched forward from nozzle 1.

See Fig. 2, Fig. 9, Figure 10 a, Figure 10 b and Figure 10 c, fan 100 also comprises vehicularized leaning device, and this leaning device comprises driving component 83 and the driven member 85 fixing with the main body 4 of nozzle in the second motor 82 being positioned at shell 21, the rotating shaft 84 being arranged on the second motor 82.Usually, the main body 4 of nozzle and driven member 85 are integrally, namely integrated.

In the present embodiment, the gear that driving component 83 is formed for plastics, the arc-shaped rack that driven member 85 is formed for plastics, wherein, driven member 85 can stretch into the second opening 81 be positioned on shell 21 and engage with the driving component 83 being positioned at shell 21.In order to the symmetry properties making fan have left and right, the second opening 81 on shell 21 is provided with symmetrical two.

The operation of vehicularized leaning device responds user by circuit arrangement 37 and presses the button 13b to control.In the present embodiment, second motor 82 is a stepper motor, press the button 13b the second motor 82 can be made to work and drive driving component 83 and the driven member 85 that engages with driving component 83 moves, because the main body 4 of driven member 85 with nozzle is fixed, the main body 4 of nozzle can be driven like this to move around tilt axis Y relative to pedestal 2, the air-out direction of nozzle is changed in vertical plane, wherein tilt axis Y and axis X less perpendicular.Obviously, this vehicularized inclination regulates, and its operation is very convenient.

In the present embodiment, fan 100 also comprises an IR remote controller (not shown in FIG.), pedestal 2 also comprises the infrared signal receiver be connected with circuit arrangement 37, the button of such fan 100 11,12, the function of 13a and 13b can be realized by the associated button operating IR remote controller.

Figure 11 illustrates the side view of the fan shown in Fig. 1 when nozzle body is tilted forward to a certain position, and Figure 12 illustrates the fan shown in Fig. 1 and tilts backwards to side view during a certain position at nozzle body.As can be seen from Figure 11 and Figure 12, fan 100, by vehicularized leaning device, drives the main body 4 of nozzle to move around tilt axis Y relative to pedestal 2, the air-out direction of nozzle 1 can be made to change in vertical plane, to meet the different demands of user.Also easily find out in addition, the main body 4 of nozzle relative to pedestal 2 when tilt axis Y moves, described first opening 40 towards changing.

Although shown and described and thought preferred embodiments of the invention at present, obviously, those skilled in the art can carry out various change or improvement, and this change or improvement all belong to the scope of the present invention that appended claims limits.

Claims (10)

1. a fan, is characterized in that, described fan comprises: pedestal, and this pedestal comprises the first motor of impeller and drives impeller rotary work; Nozzle, this nozzle comprises the inner passage for accepting air-flow and the relief opening for launching air-flow, and this inner passage gets around hole and extends, and the partial air from fan outside is aspirated by the air penetrated from described relief opening and passes described perforate; Vehicularized leaning device, move around tilt axis relative to described pedestal for being urged to small part nozzle, this leaning device comprises the second motor, the driving component driven by the second motor and the driven member engaged with described driving component, and wherein, described driven member is connected with described nozzle.

2. the fan as described in claim l, is characterized in that, described driving component is arranged as the outer peripheral portion engaging driven member.

3. the fan as described in claim l, is characterized in that, described driving component comprises gear, and described driven member comprises arc-shaped rack.

4. the fan as described in claim l, is characterized in that, described driving component comprises gear, and described driven member comprises one group of tooth, for engaging the tooth of described driving component.

5. the fan as described in one of claim l to 4, it is characterized in that, described pedestal comprises bottom base and is positioned at the top base on bottom base, described top base comprises top base shell, wherein, described second motor is positioned at top base shell, and described driving component has at least part to be positioned at top base shell.

6. the fan as described in one of claim l to 4, is characterized in that, described second motor and described driving component are all arranged in described inner passage.

7. the fan as described in one of claim l to 4, it is characterized in that, described nozzle comprises base portion and main body, and described base portion is connected with described pedestal, described driven member is connected with described main body, and described leaning device moves around tilt axis relative to described pedestal for driving described main body.

8. the fan as described in one of claim l to 4, it is characterized in that, described nozzle comprises base portion and main body, described base portion is connected with described pedestal, described driven member is connected with described main body, described leaning device moves around tilt axis relative to described pedestal for driving described main body, described base portion comprises pneumatic tube, described main body comprises main body cover and the first opening for allowing described pneumatic tube stretch into, described pneumatic tube and described main body cover are slidably connected, when described main body is moved around tilt axis relative to described pedestal, described first opening towards changing.

9. the fan as described in one of claim l to 4, is characterized in that, described pedestal comprises the second opening stretched into for described driven member.

10. the fan as described in one of claim l to 4, it is characterized in that, described nozzle comprises base portion and main body, described base portion is connected with described pedestal, described driven member is connected with described main body, described second motor is arranged in described inner passage and is connected with described base portion, and described leaning device moves around tilt axis relative to described pedestal for driving described main body.