CN103982404A - Fan - Google Patents
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- CN103982404A CN103982404A CN201310049594.0A CN201310049594A CN103982404A CN 103982404 A CN103982404 A CN 103982404A CN 201310049594 A CN201310049594 A CN 201310049594A CN 103982404 A CN103982404 A CN 103982404A
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- fan
- delivery pipe
- motor
- impeller
- nozzle
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Abstract
The invention discloses a fan. The fan comprises a nozzle, a generating device, a first conveying pipe and a second conveying pipe, wherein the nozzle comprises an outer shell, a first input end and a second input end; the generating device comprises a first impeller cover, a second impeller cover, a first impeller, a second impeller, a first motor and a second motor; the first conveying pipe is connected between an air outlet end of the first impeller cover and the first input end of the nozzle; the second conveying pipe is connected between an air outlet end of the second impeller cover and the second input end of the nozzle.
Description
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 the Air Flow in indoor, office and other environment.
Background technique
Traditional domestic fan generally includes motor and by motor, is driven one group of blade or the impeller be rotated.This group blade is usually located in 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 of fan also exists the risk that human body touches this group rotation blade.
The Chinese patent application that on May 6th, 2009, publication number was CN 101424279A (application number: 200810177844.8) disclose a kind of fan that does not expose fan blade, described fan comprises nozzle and is used to form by the generation device of the air-flow of described nozzle, described nozzle comprises the input end with import, for receiving the inner passage of air-flow and for launching the relief opening of air-flow, described nozzle limits opening, the air-flow suction that the air of described fan outside is launched from relief opening is by this opening, described generation device comprises impeller chimney, be positioned at the impeller of impeller chimney and the motor of the described vane rotary work of driving.Because this kind of fan only uses a vane rotary job, described impeller must could obtain enough air outputs by high speed operation, and running up of impeller will produce larger noise.
Summary of the invention
The fan that will provide a kind of noise lower is provided, and this kind of fan comprise nozzle, be used to form the generation device of the air-flow by described nozzle and for the formed air-flow of described generation device being delivered to the first delivery pipe and second delivery pipe of described nozzle; Described nozzle comprise there is the frame at two ends, the first input end with import that lays respectively at described frame two ends and the second input end, for receiving the inner passage of air-flow and for launching the relief opening of air-flow; Described generation device comprise have inlet end and outlet side the first impeller chimney and the second impeller chimney, be positioned at described the first impeller chimney the first impeller, be positioned at described the second impeller chimney the second impeller, drive the first motor of described the first vane rotary work and drive the second motor of described the second vane rotary work; Wherein: described the first delivery pipe is connected between the outlet side of described the first impeller chimney and the first input end of described nozzle, described the second delivery pipe is connected between the outlet side of described the second impeller chimney and the second input end of described nozzle.
Described fan can limit opening, from the air of fan outside, can be entrainmented by described opening by the air-flow of launching from relief opening.Preferably, described frame does not form closed loop.
Advantageously, the air-flow that the fan of this kind of structure produces two impellers is separately sent to respectively the two ends of nozzle by two delivery pipes, two impellers just can make fan obtain enough air outputs under lower rotating speed, and lower wheel speed can significantly reduce the noise that fan produces; Nozzle is accepted respectively the air-flow producing separately from two impellers at two ends in addition, and the transmission loss of its two-way air-flow is lower, has particularly reduced interference or friction between multichannel air-flow, has significantly improved the efficiency of transmission of air-flow.
Described fan can comprise be positioned at the first delivery pipe and the second delivery pipe for guiding the guiding device of air-flow.Described guiding device comprises for guiding a plurality of fins of air-flow; Preferably, described guiding device comprises a plurality of fins that become whole with the first delivery pipe or the second delivery pipe.In the first delivery pipe and the second delivery pipe, be provided for guiding the fin of air-flow, be conducive to improve the transfer efficiency of air-flow and reduce noise.
Described fan can comprise for the first motor casing of fixing described the first motor with for fixing the second motor casing of described the second motor, the outlet side of described the first impeller chimney is connected with described the first delivery pipe by described the first motor casing, and the outlet side of described the second impeller chimney is connected with described the second delivery pipe by described the second motor casing.
Described fan generally includes for controlling the circuit arrangement of motor operations.Preferably, the first motor and the second motor adopt same circuit arrangement to control, and are conducive to like this enhance productivity and reduce costs.Preferably, described same circuit arrangement comprises two output interfaces that the electricity cable of confession the first motor and the second motor is connected.
Described fan can also comprise the toroidal shell with a plurality of imports and at least one outlet, and described toroidal shell limits internal cavities, and described generation device, described the first delivery pipe and described the second delivery pipe are all arranged in the internal cavities of described toroidal shell.Adopt this kind of structure, can make fan there is good outward appearance.
Described fan preferably includes pedestal, and described nozzle is arranged on pedestal, and described pedestal comprises base shell, and described generation device, described the first delivery pipe and described the second delivery pipe are all positioned at described base shell.Described pedestal comprises a plurality of imports, and two impellers arrive air intake in described base shell by described a plurality of imports.Described the first motor comprises the first rotating shaft, described the second motor comprises the second rotating shaft, preferably described the first rotating shaft is substantially parallel with described the second rotating shaft, and the angle of described the first rotating shaft and described the second rotating shaft and described base height direction is between 10 ° to 90 °; More preferably, described the first rotating shaft is substantially parallel with described the second rotating shaft, and the angle of described the first rotating shaft and described the second rotating shaft and described base height direction is between 20 ° to 75 °.Described the first impeller chimney and described the second impeller chimney all comprise the import for air inlet, and preferably, the airintake direction of the import of described the first impeller chimney is roughly contrary with the airintake direction of the import of described the second impeller chimney.
Described nozzle preferably limits opening, and the air of fan outside can be 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 800mm, more preferably between between 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 jointly.Described external casing part preferably forms local overlapping described inner shell part, can allow so described relief opening be limited between the outer surface of described inner shell part and the internal surface of described external casing part.
Described relief opening is preferably slot-shaped relief opening, its relief opening at the width in outlet port conventionally between 0.5mm to 10mm, 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 7000rpm, is preferably located between 1200rpm to 6500rpm.
Described the first delivery pipe and described the second delivery pipe can comprise one section of metal tube, also can comprise one section of flexible pipe, as one section of rubber pipe, can reduce like this transmission of vibration.
Accompanying drawing explanation
Referring now to accompanying drawing explanation 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 front decomposition view of the fan shown in Fig. 1.
Fig. 3 is the side view of the fan shown in figure l.
Fig. 4 is the decomposition side view of the fan shown in Fig. 1.
Fig. 5 is the amplification view along A-A line intercepting of Fig. 1.
Fig. 6 is the amplification view along B-B line intercepting of Fig. 4.
Fig. 7 is that the fan shown in Fig. 1 turns to forward the side view of a certain position at nozzle.
Fig. 8 is that the fan shown in Fig. 1 rotates back to the side view of a certain position at nozzle.
Embodiment
Figure l is that Fig. 2 is the front decomposition view of the fan shown in Fig. 1 from the schematic diagram of the fan of the present invention of device forward observation, and Fig. 2 is the side view of the fan shown in Fig. 1, and Fig. 4 is the decomposition side view of the fan shown in Fig. 1.From Fig. 1 to Fig. 4, can find out, fan 10 comprises pedestal 1 and is positioned at the nozzle 2 on pedestal 1; Pedestal 1 comprises base 13 and is positioned at the base portion 11 on base 13.Pedestal 1 has import 15, and import 15 is the form that is formed on a plurality of holes on the shell 12 of pedestal, and air is inhaled in shell 12 from fan outside by import 15.
Nozzle 2 comprises the annular outer cover body 5 of the non-closure with two ends 92,93, two input ends 16 and 17 that are positioned at two ends 92,93, inner passage 3 and the relief opening 4 being limited by this annular outer cover body 5; Two input ends 16 of nozzle 2 and 17 two circular holes 18 that stretch into respectively on the both sides, top that are positioned at pedestal 1.Pedestal 1 and nozzle 2 define opening 6 jointly.
Pedestal 1 further comprises for allowing user to operate the user interface of fan.This user interface comprises a plurality of buttons 7,8,9 of user-operable.
Fig. 5 has shown the structure of nozzle interior.As can see from Figure 5, the toroidal shell 5 of nozzle comprises inner shell part 65 and external casing part 66, inner shell part 65 comprises the extended surface 70 that the guiding surface 69 that guiding air flow stream is crossed and the air-flow that guiding surface 69 is guided are not flow through, inner shell part 65 and external casing part 66 define inner passage 3 jointly, in inner passage 3, be also provided with a porous slab 67, this porous slab 67 has a plurality of perforation 68, the noise that these perforation 68 can make air-flow pass and can decay in air-flow.Relief opening 4 is positioned near the rear portion of nozzle 2, and is set to before fan, launch air-flow by opening 6.Relief opening 4 has part conventionally in surrounding's extension of opening 6, preferably around opening 6.Relief opening 4 is limited by the outer surface of inner shell the part 65 and lap of the internal surface of external casing part 66 or relative part respectively, it is the form in gap, the outlet of relief opening 4 preferably has relatively constant width, and its width is between 0.5mm to 10mm.In the present embodiment, l.2mm the width of its outlet is about.
Fig. 6 has shown the internal structure of pedestal 1.As can be seen from Figure 6, pedestal 1 comprises base 13 and base portion 11, is provided with to be used to form the generation device of air-flow and for the formed air-flow of generation device being delivered to the first delivery pipe 90 and second delivery pipe 91 of nozzle 2 in the shell 12 of base portion 11.Generation device comprises two impeller chimneies 19 and 20, be positioned at two impellers 21 and 22 and two motors 23 and 24 of driving two impeller 21,22 rotary works of two impeller chimneies 19,20.Impeller chimney 19 comprises import 27, outlet 28, inlet end 31 and outlet side 32, and impeller chimney 20 comprises import 29, outlet 30, inlet end 33 and outlet side 34; Impeller 21 is positioned at impeller chimney 19, and impeller 22 is positioned at impeller chimney 20.
Motor 23 is contained in motor casing 35.Motor casing 35 comprises left part 36 and right side part 37.The rotating shaft 25 of motor 23 is through the hole that is formed on the right side part 37 of motor casing 35, to allow impeller 21 to be connected in rotating shaft 25.The left part 36 of motor casing 35 also comprises a plurality of fixing rods 45, and motor 23 is fixing with impeller chimney 19 by a plurality of fixing rods 45 of motor casing 35.
Motor 24 is contained in motor casing 38.Motor casing 38 comprises left part 40 and right side part 39.The rotating shaft 26 of motor 24 is through the hole that is formed on the left part 40 of motor casing 38, to allow impeller 22 to be connected in rotating shaft 26.The right side part 39 of motor casing 38 also comprises a plurality of fixing rods 46, and motor 24 is fixing with impeller chimney 20 by a plurality of fixing rods 46 of motor casing 38.
In the present embodiment, impeller 21 and impeller chimney 19 are configured as when impeller 21 and motor casing 35 are supported by impeller chimney 19, the blade tips of impeller 21 very approaches the internal surface of impeller chimney 19, but does not touch this internal surface, and impeller 21 is roughly coaxial with impeller chimney 19.Equally, impeller 22 and impeller chimney 20 are configured as when impeller 22 and motor casing 38 are supported by impeller chimney 20, and the blade tips of impeller 22 very approaches the internal surface of impeller chimney 20, but does not touch this internal surface, and impeller 22 is roughly coaxial with impeller chimney 20.
On impeller chimney 19,20, be all provided with cable punching hole (not shown in FIG.), on a fixing rod 45 of motor casing 35 and on a fixing rod 46 of motor casing 38, be also all provided with cable punching hole (not shown in FIG.), cable punching hole on impeller chimney 19 is aimed at cable can be passed with the cable punching hole on fixing rod 45, cable punching hole on same impeller chimney 20 is aimed at cable can be passed with the cable punching hole on fixing rod 46, facilitates cable to be connected respectively to motor 23 and motor 24 from same circuit arrangement 51.In the present embodiment, motor casing 35,38, impeller chimney 19,20 and impeller 21,22 are preferably formed by plastics; Circuit arrangement 51 has two output interfaces that the electricity cable for motor 23,24 connects respectively.
The air-flow that the first delivery pipe 90 produces impeller 21 is transported to the input end 16 of nozzle 2; The air-flow that the second delivery pipe 91 produces impeller 22 is transported to the input end 17 of nozzle 2.The input end 42 that the input end 41 of the first delivery pipe 90 has import 43, the second delivery pipes 91 has import 44.The outlet side 32 of impeller chimney is connected with the input end 41 of the first delivery pipe 90, and the outlet side 34 of impeller chimney is connected with the input end 42 of the second delivery pipe 91; The output terminal 61 of the first delivery pipe 90 is rotationally connected with the input end 16 of nozzle 2, the output terminal 62 of the second delivery pipe 91 is rotationally connected with the input end 17 of nozzle 2, and at these two places of being rotationally connected, seal ring (not shown in FIG.) being set, two of nozzle 2 input ends 16,17 can rotate with respect to the output terminal 61 of the first delivery pipe 90 and the output terminal of the second delivery pipe 91 62 like this.
Small arrow in Fig. 6 has been shown the flow direction of air-flow in fan.In Fig. 6, can be clear that, in the first delivery pipe 90 and the second delivery pipe 91, be respectively arranged with fin 50,60.Fin 50 is arranged in the second delivery pipe 91 and fixes with its inwall; Fin 60 is arranged in the first delivery pipe 90 and fixes with its inwall.These fins are used for guiding air-flow, are conducive to improve the transfer efficiency of air-flow.
Referring again to Fig. 1, base 13 has shell 14.This base 13 is for engaging the surface at fan place.Base portion 11 comprises user interface and circuit arrangement 51, and circuit arrangement 51 is for responding the various operations of user interface.Pedestal 1 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 52, and the button 9 that the operation of swing mechanism is pressed user interface by circuit arrangement 51 response users is controlled.Hunting range is preferably between 60 ° and 120 °, and swing mechanism is set to 3 to 6 deflection periods of execution per minute.For supplying power to the main power line (not drawing) of fan, through the hole being formed on base 13, extend.
In the present embodiment, motor the 23, the 24th, DC Brushless Motor, the rotating speed of motor can change by circuit arrangement 51 response user operation knobs 8.The maximum speed of motor 23,24 is preferably in the scope of 5000rpm to 7000rpm.
In the present embodiment, impeller chimney 20 is fixing with impeller chimney 19, and impeller chimney 19 is supported by a plurality of pillar 58, and the lower end of each pillar 58 is positioned in the supporting member 59 on base plate 85.Supporting member 59 is preferably formed by the material of elastically deformable.In the present embodiment, supporting member 59 is formed by natural rubber, and the quantity of pillar 58 and supporting member 59 is all 4.
In order to operate fan, user presses the button 7 of user interface, responds this operation, and circuit arrangement 51 activates motor 23,24 with rotary blade 21,22.The rotation of impeller 21,22 makes air enter in the shell 12 of pedestal 1 by import 15.User can carry out by handling knob 8 rotating speed of governor motor 23,24, thus the speed that regulates air to enter from the import 27,29 of impeller chimney 19,20.The first delivery pipe 90 and the second delivery pipe 91 receive respectively the air-flow of exporting from the outlet 28,30 of impeller chimney 19,20, and these two strands of air-flows are transported to respectively two input ends 16,17 of nozzle and enter in nozzle 2.
In nozzle 2, air-flow divides two strands in the inner passage 3 of nozzle, to advance.The air-flow of advancing in inner passage 3 is deflated 4, mouth and launches.The air-flow of launching from relief opening 4 is through opening 6, fan part air is around entrainmented by opening 6 by the air-flow of being launched from relief opening 4 simultaneously, forms the total air flow of launching forward from nozzle 2 like this from the air-flow of relief opening 4 transmittings and the combination of the air-flow being entrainmented.
Fig. 7 has shown that the fan shown in Fig. 1 turns to forward the side view of a certain position at nozzle, and Fig. 8 has shown that the fan shown in Fig. 1 rotates back to the side view of a certain position at nozzle.From Fig. 7 and Fig. 8, easily find out, nozzle 2 can rotate relative to pedestal 1.This rotation can regulate the air-out orientation of nozzle 2, 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.
Claims (10)
1. a fan, is characterized in that, described fan comprises nozzle, be used to form the generation device of the air-flow by described nozzle and for the formed air-flow of described generation device being delivered to the first delivery pipe and second delivery pipe of described nozzle; Described nozzle comprise there is the frame at two ends, the first input end with import that lays respectively at described frame two ends and the second input end, for receiving the inner passage of air-flow and for launching the relief opening of air-flow; Described generation device comprise have inlet end and outlet side the first impeller chimney and the second impeller chimney, be positioned at described the first impeller chimney the first impeller, be positioned at described the second impeller chimney the second impeller, drive the first motor of described the first vane rotary work and drive the second motor of described the second vane rotary work; Wherein: described the first delivery pipe is connected between the outlet side of described the first impeller chimney and the first input end of described nozzle, described the second delivery pipe is connected between the outlet side of described the second impeller chimney and the second input end of described nozzle.
2. fan as claimed in claim 1, is characterized in that, described frame does not form closed loop.
3. the fan as described in one of claim 1 to 2, is characterized in that, described fan limits opening.
4. the fan as described in one of claim 1 to 2, is characterized in that, described fan also comprise be positioned at described the first delivery pipe and described the second delivery pipe for guiding a plurality of fins of air-flow.
5. the fan as described in one of claim 1 to 2, it is characterized in that, described fan also comprises for the first motor casing of fixing described the first motor with for fixing the second motor casing of described the second motor, the outlet side of described the first impeller chimney is connected with described the first delivery pipe by described the first motor casing, and the outlet side of described the second impeller chimney is connected with described the second delivery pipe by described the second motor casing.
6. the fan as described in one of claim 1 to 2, is characterized in that, described fan also comprises for controlling the same circuit arrangement of described the first motor and described the second motor operations.
7. the fan as described in one of claim 1 to 2, it is characterized in that, described fan also comprises the toroidal shell with a plurality of imports and at least one outlet, described toroidal shell limits internal cavities, and described generation device, described the first delivery pipe and described the second delivery pipe are all arranged in the internal cavities of described toroidal shell.
8. the fan as described in one of claim 1 to 2, is characterized in that, described nozzle is arranged on pedestal, and described pedestal comprises base shell, and described generation device, described the first delivery pipe and described the second delivery pipe are all positioned at described base shell.
9. fan as claimed in claim 8, it is characterized in that, described the first motor comprises the first rotating shaft, described the second motor comprises the second rotating shaft, described the first rotating shaft is substantially parallel with described the second rotating shaft, and the angle of described the first rotating shaft and described the second rotating shaft and described base height direction is between 20 ° to 75 °.
10. fan as claimed in claim 8, is characterized in that, described the first impeller chimney and described the second impeller chimney all comprise the import for air inlet, and the airintake direction of the import of described the first impeller chimney is roughly contrary with the airintake direction of the import of described the second impeller chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310049594.0A CN103982404A (en) | 2013-02-07 | 2013-02-07 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310049594.0A CN103982404A (en) | 2013-02-07 | 2013-02-07 | Fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103982404A true CN103982404A (en) | 2014-08-13 |
Family
ID=51274515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310049594.0A Pending CN103982404A (en) | 2013-02-07 | 2013-02-07 | Fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103982404A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56167897A (en) * | 1980-05-28 | 1981-12-23 | Toshiba Corp | Fan |
| GB2452490A (en) * | 2007-09-04 | 2009-03-11 | Dyson Technology Ltd | Bladeless fan |
| GB2468319A (en) * | 2009-03-04 | 2010-09-08 | Dyson Technology Ltd | Fan assembly |
| CN102817859A (en) * | 2012-09-01 | 2012-12-12 | 胡国贤 | Electric fan with double wind-collecting wind wheels and blade-free air-blowing head |
| CN102900654A (en) * | 2011-07-27 | 2013-01-30 | 戴森技术有限公司 | Fan assembly |
-
2013
- 2013-02-07 CN CN201310049594.0A patent/CN103982404A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56167897A (en) * | 1980-05-28 | 1981-12-23 | Toshiba Corp | Fan |
| GB2452490A (en) * | 2007-09-04 | 2009-03-11 | Dyson Technology Ltd | Bladeless fan |
| GB2468319A (en) * | 2009-03-04 | 2010-09-08 | Dyson Technology Ltd | Fan assembly |
| CN102900654A (en) * | 2011-07-27 | 2013-01-30 | 戴森技术有限公司 | Fan assembly |
| CN102817859A (en) * | 2012-09-01 | 2012-12-12 | 胡国贤 | Electric fan with double wind-collecting wind wheels and blade-free air-blowing head |
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Application publication date: 20140813 |