CN203130445U - Fan - Google Patents
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- CN203130445U CN203130445U CN 201320158849 CN201320158849U CN203130445U CN 203130445 U CN203130445 U CN 203130445U CN 201320158849 CN201320158849 CN 201320158849 CN 201320158849 U CN201320158849 U CN 201320158849U CN 203130445 U CN203130445 U CN 203130445U
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- fan
- impeller
- cavity
- output terminal
- frame
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Abstract
The utility model relates to a fan, which comprises a base and a nozzle, wherein the nozzle comprises an inner cavity and an exhaust port; the base comprises an outer shell, a clapboard, a through hole formed in the clapboard, a device for forming airflow, and a conveying pipe for conveying the airflow, wherein the clapboard is use for dividing the inner cavity limited by the outer shell into a first cavity and a second cavity; the device comprises a first impeller cover, a second impeller cover, a first impeller and a second impeller, and is located in the second cavity; the conveying pipe comprises an input end and an output end; the inner cavity of the nozzle is communicated with the first cavity; and the output end of the conveying pipe is connected with the clapboard.
Description
Technical field
The utility model relates to a kind of fan.Especially, but be not in exclusive manner, the utility model relates to a kind of family expenses fan, as the family expenses desk fan, flows for increasing the air circulation in indoor, office and other environment and air.
Background technique
Traditional family expenses fan generally includes motor and is driven one group of blade or the impeller be rotated motion by motor.This group blade is usually located in the cage, and this cage allows air-flow to pass, yet but stops human body to touch the blade of rotation.But in some cases, this kind fan also exists the risk that human body touches this group rotation blade.
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 device that is used to form by the air-flow of described nozzle, described nozzle comprises for the internal cavities that receives air-flow with for the relief opening of launching 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 device comprises impeller chimney, be positioned at the impeller of impeller chimney and the motor of drives impeller rotary work.
Because this kind fan only uses an impeller rotary work, described impeller rotation at a high speed could obtain enough air outputs, and the rotation of the high speed of impeller can produce bigger noise.
Summary of the invention
The utility model aims to provide a kind of improved fan.This kind fan, it is characterized in that, described fan comprises pedestal and the nozzle that is connected with described pedestal, described nozzle comprises be used to the internal cavities of accepting air-flow with for the relief opening of launching air-flow, described pedestal comprises frame, dividing plate, be positioned at the through hole on the described dividing plate, be used to form the device of air-flow and for delivery of the delivery pipe of air-flow, the internal cavities that described dividing plate is used for described frame is limited is divided into first cavity and second cavity, described device comprises first impeller chimney, second impeller chimney, first impeller and second impeller also are positioned at described second cavity, described delivery pipe comprises the input end with suction port and the output terminal with air outlet, wherein, the internal cavities of described nozzle is communicated with described first cavity, and the output terminal of described delivery pipe is connected with described dividing plate in described through hole.
The formed two strands of air-flows of device that this kind fan uses delivery pipe will be positioned at second cavity are delivered to first cavity that is communicated with nozzle, have realized the high efficiency of transmission of two strands of air-flows, are conducive to reduce the transmission loss of air-flow.In addition, two impellers just can make fan obtain enough air outputs under lower rotating speed, and lower wheel speed can significantly reduce the noise that produces.
Preferably, described delivery pipe comprises two input ends, described first impeller chimney and described second impeller chimney all comprise the input end with suction port and the output terminal with air outlet, and two input ends of described delivery pipe are connected with the output terminal of first impeller chimney and the output terminal of second impeller chimney respectively.
Preferably, described delivery pipe comprises two input ends, described first impeller chimney and described second impeller chimney all comprise the input end with suction port and the output terminal with air outlet, described device also comprises for first motor and second motor that drive first impeller and the second impeller rotary work respectively, be used for fixing respectively first motor casing and second motor casing of first motor and second motor, wherein, an input end of described delivery pipe is connected with the output terminal of first impeller chimney by first motor casing, and another input end of described delivery pipe is connected with the output terminal of second impeller chimney by second motor casing.
In a preferred embodiment, described frame comprises first frame that centers on described first cavity and second frame that centers on described second cavity, and it is whole that described dividing plate becomes with first frame.In another preferred embodiment, described frame comprises first frame that centers on described first cavity and second frame that centers on described second cavity, and it is whole that described dividing plate becomes with second frame.It is whole that described dividing plate becomes with first frame or second frame, is conducive to reduce the quantity of fan part, improves the manufacturing efficient of fan.
Described fan can comprise the flexible seal member that is arranged on described delivery pipe and described dividing plate joint.The vibration of adopting flexible seal member to be conducive to reduce from motor and impeller passes to dividing plate, frame and nozzle by delivery pipe.Described flexible seal member preferably includes rubber seal.
Described delivery pipe also can comprise three-way pipe and the flexible pipe that is positioned at described three-way pipe downstream, and described flexible pipe comprises the output terminal with air outlet, and the output terminal of described flexible pipe is connected with described dividing plate in described through hole.The vibration of adopting flexible pipe also to be conducive to reduce from motor and impeller passes to dividing plate, frame and nozzle by delivery pipe.Described three-way pipe preferably includes two suction ports and an air outlet, and wherein, the shape of two suction ports all is circular.
Described fan can also comprise the base that is positioned at below the described pedestal, and wherein, pedestal can be swung with respect to base.Pedestal is swung with respect to base, can make nozzle change its air-out orientation in horizontal plane.
Preferably, described nozzle and described pedestal are rotationally connected.Nozzle can rotate adjusting with respect to pedestal like this, can make nozzle change its air-out orientation in vertical plane.
Preferably, described first cavity be positioned at described second cavity above.Common first cavity is less than second cavity.
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 internal cavities 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 first motor and described second motor can be alternating current motors, also can be DC Brushless Motor; Described first impeller and described second impeller can be centrifugal impellers, can be mixed flow impellers also, are preferably mixed flow impeller.The rotating speed of described first impeller and described second impeller is usually located between the 800rpm to 7000rpm, is preferably located between the 1200rpm to 6500rpm.
Description of drawings
Referring now to description of drawings mode of execution of the present utility model, in the accompanying drawings.
Figure l is the front schematic view of fan of the present utility model.
Fig. 2 is the side view of the fan shown in the figure l.
Fig. 3 is the schematic representation of the nozzle segment of fan shown in Figure 1.
Fig. 4 is the amplification view that intercepts from the A along Fig. 1-A line that the F direction of Fig. 1 is observed.
Fig. 5 is the amplification view of the B-B line intercepting along Fig. 1.
Fig. 6 is the schematic representation of the three-way pipe among Fig. 5.
Fig. 7 has showed the another kind replacement structure of pedestal shown in Figure 5 and base portion.
Embodiment
Figure l is the schematic representation of fan of the present utility model from the device forward observation, and Fig. 2 is the side view of fan shown in Figure 1, and Fig. 3 is the schematic representation of the nozzle segment of fan shown in Figure 1.As can be seen, fan 10 comprises base 13, be positioned at the pedestal 1 on the base 13 and be positioned at nozzle 2 on the pedestal 1 from Fig. 1 to Fig. 3.Pedestal 1 has suction port 15, and suction port 15 is the form in a plurality of holes on the frame 12 that is formed on pedestal, and air enters in the frame 12 from the fan outside by suction port 15.
Pedestal 1 further comprises for the user interface that allows the user to operate fan.This user interface comprises a plurality of buttons 7,8,9 of user-operable.
Fig. 4 has showed the structure of nozzle interior.As can see from Figure 4, 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 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 internal cavities 3 jointly, in internal cavities 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 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. 5 has showed the internal structure of pedestal 1.Pedestal 1 comprises frame 12, dividing plate 91, is positioned at the through hole 92 on the dividing plate 91, the device that is used to form air-flow and delivery pipe; Dividing plate 91 is positioned at frame 12, the internal cavities that dividing plate 91 limits frame 12 be divided into first cavity 95 and second cavity, 96, the first cavitys 95 be positioned at second cavity 96 above; Described device is positioned at second cavity 96, described device comprises first impeller chimney 19, second impeller chimney 20, be positioned at first impeller 21 of first impeller chimney 19, be positioned at second impeller chimney 20 second impeller 22, drive first motor 23 of first impeller, 21 rotary works and drive second motor 24 of second impeller, 22 rotary works; First impeller chimney 19 comprises that the input end 31 with suction port 27 and output terminal 32, the second impeller chimneies 20 with air outlet 28 comprise the input end 33 with suction port 29 and the output terminal 34 with air outlet 30.
Delivery pipe is used for the formed air-flow of described device is delivered to first cavity 95.In the present embodiment, delivery pipe comprises three-way pipe 90 and the flexible pipe 94 that is positioned at three-way pipe 90 downstreams and is connected with three-way pipe 90.Adopting flexible pipe 94 to be conducive to reduce vibration transmits downstream from three-way pipe 90.And in conjunction with Fig. 6, three-way pipe 90 comprises first input end with suction port 97, have second input end of suction port 98 and have the output terminal of air outlet 93.The lower end of flexible pipe 94 has suction port, and the upper end of flexible pipe 94 has the air outlet.The first input end with suction port 97 of three-way pipe 90 is connected with the output terminal 32 of first impeller chimney 19, second input end with suction port 98 of three-way pipe 90 is connected with the output terminal 34 of second impeller chimney 20, the output terminal with air outlet 93 of three-way pipe 90 is connected with the lower end of flexible pipe 94, and the upper end of flexible pipe 94 is connected with dividing plate 91 at through hole 92 places as output terminal.The formed two strands of air-flows of described like this device can converge and transmit the back by delivery pipe and are delivered to first cavity 95 efficiently.
In conjunction with Fig. 1 to Fig. 3, two input ends 16 of nozzle 2 and 17 stretch into two circular hole (not shown)s on the both sides, top that are arranged in pedestal 1 respectively and are communicated with first cavity 95.
In the present embodiment, frame 12 comprises the first frame 12a that centers on first cavity 95 and the second frame 12b that centers on second cavity 96, and it is whole, namely integrated that dividing plate 91 becomes with the second frame 12b.
First motor 23 is contained in the motor casing 35.Motor casing 35 comprises left part 36 and right side part 37.The hole of the right side part 37 that is formed on motor casing 35 is passed in the rotating shaft 25 of first motor 23, is connected in the rotating shaft 25 to allow first impeller 21.The left part 36 of motor casing 35 comprises that also a plurality of fixing rod 45, the first motors 23 are fixing by a plurality of fixing rods 45 and first impeller chimney 19 of motor casing 35.
Second motor 24 is contained in the motor casing 38.Motor casing 38 comprises left part 39 and right side part 40.The hole of the right side part 40 that is formed on motor casing 38 is passed in the rotating shaft 26 of second motor 24, is connected in the rotating shaft 26 to allow second impeller 22.The left part 39 of motor casing 38 comprises that also a plurality of fixing rod 46, the second motors 24 are fixing by a plurality of fixing rods 46 and second impeller chimney 20 of motor casing 38.
In the present embodiment, first impeller 21 and first impeller chimney 19 are configured as when first impeller 21 and motor casing 35 are supported by first impeller chimney 19, the blade tips of first impeller 21 is very near the internal surface of first impeller chimney 19, but do not touch this internal surface, first impeller 21 is roughly coaxial with first impeller chimney 19.Equally, second impeller 22 and second impeller chimney 20 are configured as when second impeller 22 and motor casing 38 are supported by second impeller chimney 20, the blade tips of second impeller 22 is very near the internal surface of second impeller chimney 20, but do not touch this internal surface, second impeller 22 is roughly coaxial with second impeller chimney 20.
On first impeller chimney 19 and second impeller chimney 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 first impeller chimney 19 is aimed at the cable perforation on the fixing rod 45 cable can be passed, cable perforation on same second 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 first motor 23 and second motor 24 from same circuit arrangement 51.In the present embodiment, motor casing 35,38, first impeller chimney 19, second impeller chimney 20, first impeller 21 and second impeller 22 are preferably formed by plastics; Circuit arrangement 51 has two output interfaces that the electricity cable for first motor 23 and second motor 24 is connected respectively.
In conjunction with Fig. 1, base 13 has frame 14 again.Base 13 is used for engaging the surface at fan 10 places.Pedestal 1 comprises user interface and circuit arrangement 51, and circuit arrangement 51 is used for the various operations of response user interface.Fan 10 comprises that also be used to the swing mechanism that pedestal 1 is swung back and forth with respect to base 13, 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.Passing the hole that is formed on the base 13 for the main power line (not drawing) that supplies power to fan extends.
In the present embodiment, first motor 23 and second motor 24 are DC Brushless Motor, and the rotating speed of first motor and second motor can change by circuit arrangement 51 response user operation knobs 8.The maximum speed of first motor 23 and second motor 24 is preferably in the scope of 5000rpm to 6500rpm.
In the present embodiment, first impeller chimney 19 and three-way pipe 90 are 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 10, the user presses the button 7 of user interface, responds this operation, and circuit arrangement 51 activation first motors 23 and second motor 24 are to rotate first impeller 21 and second impeller 22.The rotation of first impeller 21 and second impeller 22 makes air enter in second cavity 96 of pedestal 1 by suction port 15.The user can regulate the rotating speed of first motor 23 and second motor 24 by handling knob 8.Three-way pipe 90 receives the air-flow of exporting from the air outlet 30 of the air outlet 28 of first impeller chimney 19 and second impeller chimney 20 and pools one air-flow and transmits, this strand air-flow is fed in first cavity 95 after transmitting through flexible pipe 94, is admitted to then in the nozzle 2 that is communicated with first cavity 95.
In nozzle 2, air-flow divides two strands to advance in the internal cavities 3 of nozzle 2.The air-flow of advancing in internal cavities 3 is deflated mouthful 4 emissions.The air-flow of launching from relief opening 4 passes opening 6, part air around the while fan is entrainmented by opening 6 by the air-flow of being launched from relief opening 4, and the combination from relief opening 4 air-flow of launching and the air-flow that is entrainmented constitutes the total air flow of launching forward from nozzle 2 like this.
Fig. 7 has showed the another kind replacement structure of pedestal shown in Figure 5 and base portion.In the embodiment shown in fig. 7, delivery pipe only comprises three-way pipe 90, and the output terminal with air outlet 93 of three-way pipe 90 is connected with dividing plate 91 at through hole 92 places, and is provided with flexible seal member 99 in this joint.In the present embodiment, flexible seal member 99 is rubber ring.The vibration of adopting flexible seal member 99 to be conducive to reduce from motor and impeller is transmitted to dividing plate 91 and frame 12 by three-way pipe 90.
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. fan, it is characterized in that, described fan comprises pedestal and the nozzle that is connected with described pedestal, described nozzle comprises be used to the internal cavities of accepting air-flow with for the relief opening of launching air-flow, described pedestal comprises frame, dividing plate, be positioned at the through hole on the described dividing plate, be used to form the device of air-flow and for delivery of the delivery pipe of air-flow, the internal cavities that described dividing plate is used for described frame is limited is divided into first cavity and second cavity, described device comprises first impeller chimney, second impeller chimney, first impeller and second impeller also are positioned at described second cavity, described delivery pipe comprises the input end with suction port and the output terminal with air outlet, wherein, the internal cavities of described nozzle is communicated with described first cavity, and the output terminal of described delivery pipe is connected with described dividing plate in described through hole.
2. fan as claimed in claim 1, it is characterized in that, described delivery pipe comprises two input ends, described first impeller chimney and described second impeller chimney all comprise the input end with suction port and the output terminal with air outlet, and two input ends of described delivery pipe are connected with the output terminal of first impeller chimney and the output terminal of second impeller chimney respectively.
3. fan as claimed in claim 1, it is characterized in that, described delivery pipe comprises two input ends, described first impeller chimney and described second impeller chimney all comprise the input end with suction port and the output terminal with air outlet, described device also comprises for first motor and second motor that drive first impeller and the second impeller rotary work respectively, be used for fixing respectively first motor casing and second motor casing of first motor and second motor, wherein, an input end of described delivery pipe is connected with the output terminal of first impeller chimney by first motor casing, and another input end of described delivery pipe is connected with the output terminal of second impeller chimney by second motor casing.
4. fan as claimed in claim 1, described frame comprise that described dividing plate becomes integral body with first frame around first frame of described first cavity with around second frame of described second cavity.
5. fan as claimed in claim 1, described frame comprise that described dividing plate becomes integral body with second frame around first frame of described first cavity with around second frame of described second cavity.
6. as the described fan of one of claim 1 to 5, it is characterized in that described fan also comprises the flexible seal member that is arranged on described delivery pipe and described dividing plate joint.
7. as the described fan of one of claim 1 to 5, it is characterized in that, described delivery pipe comprises three-way pipe and the flexible pipe that is positioned at described three-way pipe downstream, and described flexible pipe comprises the output terminal with air outlet, and the output terminal of described flexible pipe is connected with described dividing plate in described through hole.
8. as the described fan of one of claim 1 to 5, it is characterized in that, described first cavity be positioned at described second cavity above.
9. as the described fan of one of claim 1 to 5, it is characterized in that described nozzle and described pedestal are rotationally connected.
10. as the described fan of one of claim 1 to 5, it is characterized in that described fan also comprises the base that is positioned at below the described pedestal, wherein, described pedestal can be with respect to described base swing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320158849 CN203130445U (en) | 2013-04-02 | 2013-04-02 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320158849 CN203130445U (en) | 2013-04-02 | 2013-04-02 | Fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130445U true CN203130445U (en) | 2013-08-14 |
Family
ID=48938427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320158849 Expired - Fee Related CN203130445U (en) | 2013-04-02 | 2013-04-02 | Fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130445U (en) |
-
2013
- 2013-04-02 CN CN 201320158849 patent/CN203130445U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINHUA HUASAIYING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: REN WENHUA Effective date: 20140603 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310052 HANGZHOU, ZHEJIANG PROVINCE TO: 321000 JINHUA, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140603 Address after: 321000 Zhejiang province Jinhua Jinfan Street No. 966 Golden Sail incubator base 1 room No. 412 Patentee after: Jinhua Huasai Ying Technology Co. Ltd. Address before: 310052 Hangzhou City, Binjiang District Province, No., Shing Road, Garden Court, building 2, room 3, unit 1402, room 3191 Patentee before: Ren Wenhua |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20150402 |
|
| EXPY | Termination of patent right or utility model |