CN104033364A

CN104033364A - Fan

Info

Publication number: CN104033364A
Application number: CN201310074475.0A
Authority: CN
Inventors: 任文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-10
Filing date: 2013-03-10
Publication date: 2014-09-10

Abstract

A fan comprises a spray nozzle which is connected with a base in a rotatable mode; the base comprises an outer casing, impellers and a motor; the spray nozzle comprises an annular casing, an internal channel, an air inlet and an air outlet; the annular casing is provided with a first casing and a second casing which are provided with internal casing portions and external casing portions; the internal casing portion and the external casing portion of at least one casing of the first casing and the second casing can form into a closed loop in common; a portion of the outer casing is arranged inside the closed loop.

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 domestic fan, as family expenses desk fan, for increasing air circulation and Air Flow in indoor, office and other environment.

Background technique

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

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

Summary of the invention

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

Because the first housing and second housing of this kind of fan have the housing closed circuit of being integrally formed jointly at least, and described frame has part to be positioned at formed closed circuit, therefore the structure of nozzle is very firm, close contact between nozzle and pedestal is long-term maintenance easily, can make nozzle with respect to pedestal normal rotation to regulate the air-out orientation of nozzle, can make again nozzle firmly remain in the orientation that sets or regulate with respect to pedestal.

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

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

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

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

Described pedestal can comprise that the air-flow for described impeller is formed is transported to the pneumatic tube of nozzle, described pneumatic tube preferably includes one section of three-way pipe separating 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 easily make nozzle rotate reliably and stop bit with respect to pedestal.Described stop bit refers to that nozzle stops in a certain orientation.

Described pedestal can also comprise the sealing component that is rotationally connected place 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 part of described the first housing preferably includes cylndrical surface, and the inner shell part of described the second housing also preferably includes cylndrical surface.The inner shell part of the first housing or the second housing comprises cylndrical surface, is conducive to the toroidal shell of nozzle and the frame of pedestal or pneumatic tube 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 200mm to 600mm, more preferably between between 250mm to 500mm.

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

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

Brief description of the drawings

Referring now to brief description of the 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 decomposition elevation of the fan shown in Fig. 1.

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

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

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

Fig. 6 is the amplification view intercepting from the A-A line along Fig. 2 of the F direction observation of Fig. 2.

Fig. 7 is the amplification view intercepting along B-B line of Fig. 5.

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

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

Embodiment

Figure l is the schematic diagram from the fan of the present invention of device forward observation, Fig. 2 and Fig. 3 are respectively decomposition elevation and the decomposing rearviews of the fan shown in Fig. 1, Fig. 4 is the side view of the fan shown in figure l, and Fig. 5 is the decomposition side view of the fan shown in Fig. 1, and Fig. 6 has shown the structure of nozzle interior.From Fig. 1 to Fig. 6, can find out, fan 50 comprises pedestal 2 and is positioned at the nozzle 1 on pedestal 2; Pedestal 2 comprises base 13 and is positioned at the base portion 11 on base 13.Pedestal 2 has import 18, and import 18 is the form that is formed on the multiple holes on the frame 12 of pedestal, and air is inhaled in frame 12 from 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 the first housing 5 and the second housing 6, the first housings 5 and the common inner passage 20 that limits of the second housing 6.The first housing 5 comprises and is positioned at the inner shell part 5b of frame 12 and is positioned at the external casing part 5a outside frame 12, the inner shell part 5b of the first housing 5 and external casing part 5a have formed closed loop jointly, and frame 12 has part to be positioned at the closed circuit being made up of inner shell part 5b and external casing part 5a.The second housing 6 comprises and is positioned at the inner shell part 6b of frame 12 and is positioned at the external casing part 6a outside frame 12, the inner shell part 6b of the second housing 6 and external casing part 6a have also formed closed loop jointly, and frame 12 also has part to be positioned at the closed circuit being made up of inner shell part 6b and external casing part 6a.Integratedly formed the first housing 5 of closed circuit and had integrated the second housing 6 that has formed closed circuit because nozzle 1 has, therefore the structure of nozzle 1 is very firm; In addition, the frame 12 of pedestal has part to be positioned at formed closed circuit, is conducive to make nozzle and pedestal to keep reliable close contact, thereby realizes normal rotation and the stop bit of nozzle.

Pedestal 2 further comprises for allowing user to operate the user interface of fan 50.This user interface comprises multiple buttons 15,16,17 of user-operable.

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

From Fig. 6, can be clear that, the first housing 5 of nozzle 1 is positioned at nozzle 1 front portion, and the second housing 6 of nozzle 1 is positioned at the rear portion of nozzle 1; The first housing 5 is wall 511, wall 512 and the integrated housing of fixed block 19; Relief opening 7 is limited with the apparent surface of wall 512 by wall 511; Fixed block 19 is arranged in inner passage 20, fixed block 19 and at intervals D of relief opening 7, and relief opening 7 is positioned at the front end place of nozzle 1, and is set to launch air-flow before 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 shown 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 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, to allow impeller 23 to be connected in rotating shaft 31.The upper part 36 of motor casing 34 also comprises multiple 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 in the time that impeller 23 and motor casing 34 are supported by impeller chimney 22, the blade tips of impeller 23 very approaches the internal surface of impeller chimney 22, but does not touch this internal surface, and impeller 23 is roughly coaxial with impeller chimney 22.

On impeller chimney 22, be provided with cable punching hole (not shown in FIG.), on a fixing rod 37 of motor casing 34, be also provided with cable punching hole (not shown in FIG.), cable punching hole on impeller chimney 22 is aimed at cable can be passed with the cable punching hole on fixing rod 37, facilitates cable to be connected to 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, be also provided with the air-flow that impeller 23 is formed and be transported to the pneumatic tube of nozzle 1.This pneumatic tube comprises the first pneumatic tube 40 and the second pneumatic tube 43.The first pneumatic tube 40 is preferably one section of flexible pipe, as one section of rubber pipe, uses flexible pipe be conducive to decay some vibrations and the noise of motor 24 and impeller 23 to transmit to frame 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 the second pneumatic tube 43.The second pneumatic tube 43 is a three-way pipe separating 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 shown in FIG.).And referring to figs. 2 and 3, the major part of the major part of the inner shell part 5b of the first housing 5 and the inner shell part 6b of the second housing 6 is all positioned at the inside of this three-way pipe the internal surface close contact (not shown in FIG.) with this three-way pipe.Preferably, between the outer surface of inner shell part 5b and inner shell part 6b and the internal surface of this three-way pipe, seal ring is set, its seal ring is preferably the rubber ring of tool non-closure jaggy.

Impeller chimney 22 is supported by multiple the first supporting members 31.In Fig. 7, can be clear that, this first supporting member 31 is a spring element.In the present embodiment, the quantity of the first supporting member 31 is 6, the quantity that is spring element is 6, and the upper end of spring element is fixed with the projection 30 being formed on impeller chimney 22 outer surfaces, and the lower end of spring element is fixed on the pedestal 321 being 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 the 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 are easily passed to frame 12 and amplified by impeller chimney 22.

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

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

In order to operate fan, 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.User can carry out by handling knob 16 rotating speed of governor motor 24.Pneumatic tube receives the air-flow forming from impeller 23 and is divided into two strands and is transported in nozzle 1.

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

Fig. 8 has shown that the fan shown in Fig. 1 turns to forward the side view of a certain position at nozzle 1, and Fig. 9 has shown that the fan shown in Fig. 1 rotates back to the side view of a certain position at nozzle 1.From Fig. 8 and Fig. 9, easily find out, nozzle 1 can rotate relative to pedestal 2.This rotation can regulate the air-out orientation of nozzle 1, and the air-out orientation of nozzle 1 is changed on vertical plane, to meet user's different demands.

Although shown and described and thought at present preferred embodiments of the invention, apparent, those skilled in the art can carry out various changes and improvements, and does not deviate from scope of the present invention as defined in 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, the nozzle that described fan comprises pedestal and is rotationally connected with described pedestal; Described pedestal comprises frame, be positioned at the impeller of described frame and drive the motor of described vane rotary work; Described nozzle comprises toroidal shell, for accepting the inner passage of air-flow, for inputting the suction port of air-flow and the relief opening for output gas flow; Wherein, described toroidal shell comprises the first housing and the second housing, described the first housing and described the second housing all comprise and are positioned at the inner shell part of described frame and are positioned at the external casing part outside described frame, in described the first housing and described the second housing, have at least inner shell part and the external casing part of a housing can jointly form closed loop, and described frame there is part to be positioned at formed closed circuit.

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

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

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

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

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

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

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

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