CN203098219U - Fan - Google Patents
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- CN203098219U CN203098219U CN 201320071571 CN201320071571U CN203098219U CN 203098219 U CN203098219 U CN 203098219U CN 201320071571 CN201320071571 CN 201320071571 CN 201320071571 U CN201320071571 U CN 201320071571U CN 203098219 U CN203098219 U CN 203098219U
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- fan
- impeller
- delivery pipe
- motor
- nozzle
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Abstract
A fan comprises a spraying nozzle, a generating device, a first conveying pipe and a second conveying pipe. The spraying nozzle comprises an outer shell body, a first input end and a second input end. The generating device comprises a first vane wheel cover, a second vane wheel cover, a first vane wheel, a second vane wheel, a first motor and a second motor. The first conveying pipe is connected between the air outlet end of the first vane wheel cover and the first input end of the spraying nozzle, and the second conveying pipe is connected between the air outlet end of the second vane wheel cover and the second input end of the spraying nozzle.
Description
Technical field
The utility model relates to a kind of fan.Especially, but be not removing property ground, the utility model relates to a kind of family expenses fan, as the family expenses desk fan, is used for increasing the air circulation and the air flows of indoor, office and other environment.
Background technique
Traditional family expenses fan generally includes motor and is rotated the one group of blade or the impeller of motion by motor driven.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.
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 the generation device that is used to form by the air-flow of described nozzle, described nozzle comprises the input end with import, the relief opening that is used to receive the inner passage of air-flow and is used to launch air-flow, described nozzle limits opening, the air-flow suction that described fan air outside is launched from relief opening is by this opening, and described generation device comprises impeller chimney, be positioned at the impeller of impeller chimney and the motor of the described impeller rotary work of driving.Because this kind fan only uses an impeller rotary work, described impeller must could obtain enough air outputs by high speed operation, and running up of impeller will produce bigger noise.
Summary of the invention
The purpose of this utility model is the fan that will provide a kind of noise lower, and this kind fan comprises nozzle, be used to form the generation device of the air-flow by described nozzle and be used for first delivery pipe and second delivery pipe of the formed gas delivery of described generation device to described nozzle; Described nozzle comprises the frame with two ends, the first input end with import that lays respectively at described frame two ends and second input end, the relief opening that is used to receive the inner passage of air-flow and is used to launch air-flow; Described generation device comprises first motor of first impeller chimney and second impeller chimney, first impeller that is positioned at described first impeller chimney with inlet end and outlet side, second impeller that is positioned at described second impeller chimney, the described first impeller rotary work of driving and drives second motor of the described second impeller rotary work; Wherein: described first delivery pipe is connected between the first input end of the outlet side of described first impeller chimney and described nozzle, and described second delivery pipe is connected between second input end of the outlet side of described second impeller chimney and described nozzle.
Described fan can limit opening, can be entrainmented by described opening by the air-flow of launching from relief opening from the fan air outside.Preferably, described frame does not constitute closed loop.
Advantageously, the air communication that the fan of this kind structure produces two impellers is separately crossed the two ends that two delivery pipes are sent to nozzle respectively, two impellers just can make fan obtain enough air outputs under lower rotating speed, the noise that lower wheel speed can significantly reduce fan and produced; Nozzle is accepted the air-flow that produces separately from two impellers respectively at two ends in addition, and the transmission loss of its two-way air-flow is lower, has particularly reduced interference or friction between the multichannel air-flow, has significantly improved the efficiency of transmission of air-flow.
Described fan can comprise the guiding device that is used for steering flow that is positioned at first delivery pipe and second delivery pipe.Described guiding device comprises a plurality of fins that are used for steering flow; Preferably, described guiding device comprises a plurality of fins that become integral body with first delivery pipe or second delivery pipe.In first delivery pipe and second delivery pipe, be provided for the fin of steering flow, help improving the transfer efficiency of air-flow and reduce noise.
Described fan can comprise first motor casing that is used for fixing described first motor and second motor casing that is used for fixing described second motor, the outlet side of described first impeller chimney is connected with described first delivery pipe by described first motor casing, and the outlet side of described second impeller chimney is connected with described second delivery pipe by described second motor casing.
Described fan generally includes the circuit arrangement that is used to control motor operations.Preferably, first motor and second motor adopt same circuit arrangement to control, and help like this enhancing productivity and reducing cost.Preferably, described same circuit arrangement comprises two output interfaces that the electricity cable of confession first motor and 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 first delivery pipe and described second delivery pipe all are arranged in the internal cavities of described toroidal shell.Adopt this kind structure, can make fan have outward appearance preferably.
Described fan preferably includes pedestal, and described nozzle is arranged on the pedestal, and described pedestal comprises base shell, and described generation device, described first delivery pipe and described second delivery pipe all are positioned at described base shell.Described pedestal comprises a plurality of imports, and two impellers are drawn into air in the described base shell by described a plurality of imports.Described first motor comprises first rotating shaft, described second motor comprises second rotating shaft, preferably described first rotating shaft is parallel substantially with described second rotating shaft, and the angle of described first rotating shaft and described second rotating shaft and described base height direction is between 10 ° to 90 °; More preferably, described first rotating shaft is parallel substantially with described second rotating shaft, and the angle of described first rotating shaft and described second rotating shaft and described base height direction is between 20 ° to 75 °.Described first impeller chimney and described second impeller chimney all comprise the import that is used for air inlet, and preferably, the airintake direction of the import of described first impeller chimney is roughly opposite with the airintake direction of the import of described 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 the 200mm to 800mm, more preferably between between the 250mm to 500mm.
Described nozzle preferably includes inner shell part and external casing part, and they limit the inner passage and the relief opening of described nozzle jointly.Described external casing part preferably constitutes local overlapping described inner shell part, can allow described relief opening be limited between the outer surface and described external casing internal surface partly of described inner shell part like this.
Described relief opening is preferably slot-shaped relief opening, its relief opening at the width in outlet port usually between the 0.5mm to 10mm, preferably between 1mm to 5mm.
Described motor can be an alternating current motor, also can be DC Brushless Motor; Described impeller can be a 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 7000rpm, is preferably located between the 1200rpm to 6500rpm.
Described first delivery pipe and described second delivery pipe can comprise one section metal tube, also can comprise one section flexible pipe, as one section rubber pipe, can reduce transfer of vibration like this.
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 front decomposition view of fan shown in Figure 1.
Fig. 3 is the side view of the fan shown in the figure l.
Fig. 4 is the decomposition side view of fan shown in Figure 1.
Fig. 5 is the amplification view of the A-A line intercepting along Fig. 1.
Fig. 6 is the amplification view of the B-B line intercepting along Fig. 4.
Fig. 7 is fan shown in Figure 1 turns to a certain position forward at nozzle a side view.
Fig. 8 is fan shown in Figure 1 rotates back to a certain position at nozzle a 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 front decomposition view of fan shown in Figure 1, and Fig. 2 is the side 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 10 comprises pedestal 1 and the nozzle 2 that is positioned on the pedestal 1 from Fig. 1 to Fig. 4; Pedestal 1 comprises base 13 and the base portion 11 that is positioned on the base 13.Pedestal 1 has import 15, and import 15 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 15.
Fig. 5 has showed 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 guiding surface 69 that steering flow flows through 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, also be provided with a porous slab 67, this porous slab 67 has a plurality of perforation 68, and these perforation 68 can make air-flow pass and the noise in the air-flow of decaying.Relief opening 4 is positioned near the rear portion of nozzle 2, and is set to by the preceding surface launching air-flow of opening 6 towards fan.Relief opening 4 has part to extend around opening 6 usually, preferably around opening 6.Relief opening 4 is limited by the outer surface of inner shell part 65 and the lap or the relative part of the internal surface of external casing part 66 respectively, it is the form in slit, the outlet of relief opening 4 preferably has constant relatively width, and its width is between 0.5mm to 10mm.In the present embodiment, l.2mm the width of its outlet is about.
Fig. 6 has showed 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 the generation device that is used to form air-flow and is used for first delivery pipe 90 and second delivery pipe 91 of the formed gas delivery of generation device to 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 24 is contained in the motor casing 38.Motor casing 38 comprises left part 40 and right side part 39.The hole of the left part 40 that is formed on motor casing 38 is passed in the rotating shaft 26 of motor 24, is connected in the rotating shaft 26 to allow impeller 22.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 is very near the internal surface of impeller chimney 19, but do 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 is very near the internal surface of impeller chimney 20, but do not touch this internal surface, and impeller 22 is roughly coaxial with impeller chimney 20.
On impeller chimney 19,20, all be provided with cable perforation (not drawing among the figure), also all be provided with cable perforation (not drawing among the figure) on a fixing rod 45 of motor casing 35 and on the fixing rod 46 of motor casing 38, cable perforation on the impeller chimney 19 is aimed at the cable perforation on the fixing rod 45 cable can be passed, cable perforation on the same impeller chimney 20 is aimed at the cable perforation on the fixing rod 46 cable can be passed, and makes things convenient for cable to be connected respectively on motor 23 and the 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 gas delivery that first delivery pipe 90 is produced impeller 21 arrives the input end 16 of nozzle 2; The gas delivery that second delivery pipe 91 is produced impeller 22 arrives the input end 17 of nozzle 2.The input end 42 that the input end 41 of 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 first delivery pipe 90, and the outlet side 34 of impeller chimney is connected with the input end 42 of second delivery pipe 91; The output terminal 61 of first delivery pipe 90 is rotationally connected with the input end 16 of nozzle 2, the output terminal 62 of second delivery pipe 91 is rotationally connected with the input end 17 of nozzle 2, and seal ring (not drawing among the figure) being set at these two places of being rotationally connected, two of nozzle 2 input ends 16,17 can rotate with respect to the output terminal 61 of first delivery pipe 90 and the output terminal 62 of second delivery pipe 91 like this.
Small arrow among Fig. 6 has been showed the flow direction of air-flow in fan.In Fig. 6, can be clear that, in first delivery pipe 90 and second delivery pipe 91, be respectively arranged with fin 50,60.Fin 50 is arranged in second delivery pipe 91 and fixes with its inwall; Fin 60 is arranged in first delivery pipe 90 and fixes with its inwall.These fins are used for steering flow, help improving the transfer efficiency of air-flow.
With reference to figure 1, base 13 has shell 14 again.This base 13 is used to engage the surface at fan place.Base portion 11 comprises user interface and circuit arrangement 51, and circuit arrangement 51 is used to respond the various operations of user interface.Pedestal 1 also comprises and is used to swing mechanism that base portion 11 is swung back and forth with respect to base 13, and this swing mechanism comprises syncmotor 52, and the operation of swing mechanism is controlled by the button 9 that circuit arrangement 51 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.The main power line (not drawing) that is used to supply power to fan passes the hole that is formed on the base 13 and extends.
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 the 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 all is 4.
In order to operate fan, the 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.The user can be by handling the rotating speed that knob 8 come governor motor 23,24, thereby regulate the speed that air enters from the import 27,29 of impeller chimney 19,20.First delivery pipe 90 and second delivery pipe 91 receive outlet 28,30 air-flows of being exported from impeller chimney 19,20 respectively, and these two strands of air-flows are transported to two input ends 16,17 of nozzle respectively and enter in the nozzle 2.
In nozzle 2, air-flow divides two strands to advance in the inner passage 3 of nozzle.The air-flow of advancing in inner passage 3 is deflated mouthful 4 emissions.The air-flow of being launched from relief opening 4 passes opening 6, part air around the fan is entrainmented by opening 6 by the air-flow of being launched from relief opening 4 simultaneously, and the air-flow from relief opening 4 emissions constitutes the total air flow of launching forward from nozzle 2 with combining of the air-flow that is entrainmented like this.
Fig. 7 has showed that fan shown in Figure 1 turns to the side view of a certain position forward at nozzle, and Fig. 8 has showed that fan shown in Figure 1 rotates back to the side view of a certain position at nozzle.Find out easily that from Fig. 7 and Fig. 8 nozzle 2 can rotate relative to pedestal 1.This rotation can be regulated the air-out orientation of nozzle 2, and the air-out orientation of nozzle 1 is changed on 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 nozzle, be used to form the generation device of the air-flow by described nozzle and be used for first delivery pipe and second delivery pipe of the formed gas delivery of described generation device to described nozzle; Described nozzle comprises the frame with two ends, the first input end with import that lays respectively at described frame two ends and second input end, the relief opening that is used to receive the inner passage of air-flow and is used to launch air-flow; Described generation device comprises first motor of first impeller chimney and second impeller chimney, first impeller that is positioned at described first impeller chimney with inlet end and outlet side, second impeller that is positioned at described second impeller chimney, the described first impeller rotary work of driving and drives second motor of the described second impeller rotary work; Wherein: described first delivery pipe is connected between the first input end of the outlet side of described first impeller chimney and described nozzle, and described second delivery pipe is connected between second input end of the outlet side of described second impeller chimney and described nozzle.
2. fan as claimed in claim 1 is characterized in that, described frame does not constitute closed loop.
3. as the described fan of one of claim 1 to 2, it is characterized in that described fan limits opening.
4. as the described fan of one of claim 1 to 2, it is characterized in that described fan also comprises a plurality of fins that are used for steering flow that are positioned at described first delivery pipe and described second delivery pipe.
5. as the described fan of one of claim 1 to 2, it is characterized in that, described fan also comprises first motor casing that is used for fixing described first motor and second motor casing that is used for fixing described second motor, the outlet side of described first impeller chimney is connected with described first delivery pipe by described first motor casing, and the outlet side of described second impeller chimney is connected with described second delivery pipe by described second motor casing.
6. as the described fan of one of claim 1 to 2, it is characterized in that described fan also comprises the same circuit arrangement that is used to control described first motor and described second motor operations.
7. as the described fan of 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 first delivery pipe and described second delivery pipe all are arranged in the internal cavities of described toroidal shell.
8. as the described fan of one of claim 1 to 2, it is characterized in that described nozzle is arranged on the pedestal, described pedestal comprises base shell, and described generation device, described first delivery pipe and described second delivery pipe all are positioned at described base shell.
9. fan as claimed in claim 8, it is characterized in that, described first motor comprises first rotating shaft, described second motor comprises second rotating shaft, described first rotating shaft is parallel substantially with described second rotating shaft, and the angle of described first rotating shaft and described 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 first impeller chimney and described second impeller chimney all comprise the import that is used for air inlet, and the airintake direction of the import of described first impeller chimney is roughly opposite with the airintake direction of the import of described second impeller chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071571 CN203098219U (en) | 2013-02-07 | 2013-02-07 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071571 CN203098219U (en) | 2013-02-07 | 2013-02-07 | Fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098219U true CN203098219U (en) | 2013-07-31 |
Family
ID=48849626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320071571 Expired - Fee Related CN203098219U (en) | 2013-02-07 | 2013-02-07 | Fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422425A (en) * | 2015-12-21 | 2016-03-23 | 广东美的环境电器制造有限公司 | Bladeless fan |
-
2013
- 2013-02-07 CN CN 201320071571 patent/CN203098219U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422425A (en) * | 2015-12-21 | 2016-03-23 | 广东美的环境电器制造有限公司 | Bladeless fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20140207 |