CN202140355U

CN202140355U - Fan

Info

Publication number: CN202140355U
Application number: CN201120171997U
Authority: CN
Inventors: 任文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-26
Filing date: 2011-05-26
Publication date: 2012-02-08
Anticipated expiration: 2021-05-26

Abstract

The utility model provides a fan used for producing air flow. The utility model is characterized in that the fan comprises a nozzle (1) and an air flow generating device (2) used for generating the air flow that goes through the nozzle, wherein the nozzle comprises an inner channel (3) used for receiving the air flow and an air outlet (4) used for emitting the air flow, and the air flow generating device comprises a shell body (6), an impeller cover (7) which is arranged in the shell body and is integrated with the shell body, an impeller (8) which is arranged in the impeller cover, and a motor (9) which drives the impeller to rotate. The fan has the characteristics that the structure is simple, the assembly is convenient, the air tightness is good, etc.

Description

Fan

Technical field

The utility model relates to a kind of fan assembly that produces air stream.

Background technique

The one Chinese patent application that on September 8th, 2010, publication number was CN 101825105A (application number: 201010130001.X) disclose a kind of fan that is used to produce air stream; This kind fan comprises: be installed in the nozzle on the air flow-producing device; Said air flow-producing device comprises frame; Be contained in the impeller chimney in the said frame, said impeller chimney has air inlet and air outlet slit, is positioned at the impeller of impeller chimney; Pass the motor of the air-flow of impeller chimney with generation with drives impeller; Said nozzle comprises and is used for receiving from the air outlet slit of impeller chimney the inner passage and the relief opening of air-flow, and air communication is crossed relief opening and penetrated from nozzle, and wherein the flexible seal member is between said frame and said impeller chimney.

This kind fan has adopted a kind of flexible seal member; It is arranged between said frame and the said impeller chimney, prevents that air-flow from turning back to the upper reaches of said impeller chimney air inlet through the gap between said impeller chimney outer surface and the said frame internal surface from the downstream of said impeller chimney air outlet slit.The complex structure of this kind fan, assembling difficulty have much room for improvement or optimize.

Summary of the invention

The utility model aims to provide a kind of improved fan component, to overcome above-mentioned defective of the prior art.

The first aspect of the utility model is that a kind of fan simple in structure will be provided; This kind is used to produce the fan of air stream; It is characterized in that; Said fan comprises nozzle and is used to produce the air flow-producing device through said nozzle air current; Said nozzle comprise inner passage that is used to receive air-flow and the relief opening that is used to launch air-flow, said air flow-producing device comprise frame, be positioned at said frame and become with said frame integral body impeller chimney, be positioned at the impeller of said impeller chimney and drive the motor of said impeller rotary work.

In a preferred embodiment, the inner passage of said nozzle constitutes the loop of a closure, and said nozzle limits an opening, from the fan air outside by from the air-flow entrainment of said relief opening emission through said opening.In another preferred embodiment, the inner passage of said nozzle constitutes the loop of a plurality of closures, and said nozzle limits a plurality of openings, from the fan air outside by from the air-flow entrainment of said relief opening emission through said opening.In yet another preferred embodiment, said nozzle comprises inner housing part and frame part, and said inner housing part and frame part limit said inner passage and said relief opening together.

Said air flow-producing device can be column, also can be other shape.Said air flow-producing device can comprise and is positioned at said impeller chimney and at the diffuser in said impeller downstream; Said air flow-producing device also can comprise the cable that connects said motor and be positioned at said impeller chimney and at the diffuser in said impeller downstream, wherein said cable is connected to said motor through said diffuser.

Said nozzle can be set on the said air flow-producing device that uses as pedestal.Said air flow-producing device can be positioned at the outside by the closed circuit that the inner passage constituted of said nozzle; Also can be positioned at the inside by the closed circuit that the inner passage constituted of said nozzle, can also be that outside, the part that part is positioned at by the closed circuit that the inner passage constituted of said nozzle is positioned at the inside by the closed circuit that the inner passage constituted of said nozzle.

Said fan usually can be by existing fan head swinging technology to increase the coverage area of the wind of being exported.

Said fan can be a desk fan, can be wall fan, can be ceiling fan, can be flooring fan, can also be the fan of other type.

The second aspect of the utility model is to provide a kind of simple in structure being used to produce the air flow-producing device of the fan of air stream; This kind air flow-producing device; It is characterized in that said air flow-producing device comprises frame, be positioned at said frame and become whole impeller chimney with said frame, be positioned at the impeller of said impeller chimney and drive the motor of said impeller rotary work.

Said impeller chimney and said frame can adopt the whole manufacturing of plastics, also can adopt the whole manufacturing of metal, can also adopt other material to come whole manufacturing.

Said motor can be a dc brushless motor, also can be AC motor; Described impeller can be horizontal impeller, can be mixed flow impeller, can also be other impeller.

Preferably, said air flow-producing device comprises the noise reduction member that is arranged in the said frame, and this noise reduction member is positioned on the internal surface of said frame at the intake grill upper reaches of said impeller chimney.This noise reduction member comprises the noise reduction foam, like sponge etc., is used for reducing noise emissions.

The above-mentioned characteristic relevant with the utility model first aspect can be applied to the second aspect of the utility model with being equal to, and vice versa.

The utlity model has following good effect:

The fan of the utility model or be used for the air flow-producing device of fan; Because it is whole that said impeller chimney becomes with said frame; Promptly integrated, the gap unlike the existing technology that kind exists air-flow to return between impeller chimney outer surface and frame internal surface has significantly improved tightness; Do not need flexible seal member of the prior art; Do not need the parts that said impeller chimney is fixed or supported yet, simplified the structure, reduced the parts that use greatly, help enhancing productivity and reducing cost.

Description of drawings

Fig. 1 is the structural representation of the fan of the utility model;

Fig. 2 is a fan shown in Figure 1 sectional view along the intercepting of A-A line;

Fig. 3 is another embodiment's a structural representation;

Fig. 4 is a fan shown in Figure 3 sectional view along the intercepting of B-B line.

Embodiment

Fig. 1 and Fig. 2 show first embodiment of the utility model.Fig. 1 is the structural representation of fan from the utility model of device forward observation, and Fig. 2 is a fan shown in Figure 1 sectional view along the intercepting of A-A line.Visible from Fig. 1; This fan comprises the nozzle 1 that defines opening 5 and the air flow-producing device 2 that can use as pedestal; Nozzle 1 is set on the air flow-producing device 2 and is arranged to roughly and extends about X orthogonal axe ground, and nozzle 1 comprises the inner passage 3 and the relief opening 4 that is used to launch air-flow that is used to receive air-flow.And with reference to figure 2; Nozzle 1 comprises inner housing part 15 and frame part 16; Inner housing part 15 and frame part 16 define the inner passage 3 and relief opening 4 of the circle of a closure together; In this example, relief opening 4 is selected as 1.5 millimeters at the interval in its outlet port, and relief opening 4 is concentric with inner passage 3; Air flow-producing device 2 comprises frame 6, be positioned at frame 6 and with 6 one-tenth whole impeller chimney 7, the impeller 8 that is positioned at impeller chimney and motors 9 of frame.

In this example, motor 9 is dc brushless motors, and its speed can not changed the operation of control knob according to the user by current controller (drawing among the figure).Motor 9 is contained in the motor cabinet, and said motor cabinet comprises lower shell body 13 and the upper shell 14 that is connected with lower shell body 13.Motor cabinet is fixed and held in the frame 6 through the upper end portion of screw (not drawing among the figure) with impeller chimney 7, can certainly otherwise fix.The upper shell 14 of motor cabinet comprises diffuser 10, and diffuser 10 is the fixed tray form with helical fin, and is positioned at impeller 8 downstream, and the cable that in said helical fin, wherein has a helical fin to be configured to let electric power connect can pass through this helical fin.

Can see that from Fig. 1 frame 6 comprises intake grill 12, in this example, intake grill 12 is made up of numerous small sircle hole, and the diameter of its small sircle hole is 1 millimeter.From Fig. 2, can be clear that; Impeller chimney 7 is whole, promptly integrated with 6 one-tenth of framies, in the present embodiment; Impeller chimney 7 adopts the whole manufacturing of plastics with frame 6; This structure forms through mould easily, has not so just had in the existing technology gap that between the internal surface of the outer surface of impeller chimney 7 and frame 6, exists the air-flow to return, has significantly improved tightness.In addition, this kind do not need special fixed block or supporting element with the impeller chimney 7 of frame 6 being integral yet, and reduced employed parts, reduced the complexity of assembling simultaneously yet.

In this example, impeller chimney 7 also comprises bullport (not drawing among the figure), is used for the cable that connects to motor 9 guiding electric power.

During work; Motor 9 drives impeller 8 rotary works, air gets in the framies 6 from intake grill 12, and air-flow passes through the acceleration of the impeller 8 that is positioned at impeller chimney 7 or boosts; Again through being admitted in the inner passage 3 of nozzle 1 after diffuser 10 diffusions; And the air communication that inner passage 3 is received is crossed relief opening 4 and is launched, and is entrainmented through opening 5 by the air-flow of launching from relief opening from the fan air outside, constitutes the total air flow of output forward from relief opening 4 air-flow of being launched and the air-flow that is entrainmented.

Fig. 3 and Fig. 4 show second embodiment of the utility model.Fig. 3 is the structural representation of second embodiment's fan; Fig. 4 is a fan shown in Figure 3 sectional view along the intercepting of B-B line.This embodiment's fan comprises nozzle 1 that defines four openings 5 and the air flow-producing device 2 that is positioned at nozzle 1 middle part, and air flow-producing device 2 is supported by support 11.Can see that in Fig. 3 nozzle 1 comprises four openings 5 and four relief openings 4 that constitute closed circuit, the inner passage 3 of nozzle 1 constitutes a plurality of closed circuits, and air flow-producing device 2 is positioned at the closed circuit that inner passage 3 is constituted.Can be clear that in Fig. 4 air flow-producing device 2 comprises frame 6, be positioned at frame and become whole impeller chimney 7 with frame, be positioned at the impeller 8 of impeller chimney and the motor 9 of drives impeller rotary work.In this embodiment, impeller chimney 7 also adopts plastic materials with frame 6, and impeller chimney 7 also is easy to come whole the manufacturing through mould with frame 6 like this.

Seem comparatively compact being connected between this embodiment's air flow-producing device 2 and the nozzle 1, the average distance between the inner passage 3 of air flow-producing device 2 and nozzle 1 is shorter, helps reducing the transmission loss of air-flow.

Although showed and described the embodiment who thinks preferred the utility model at present, obvious, those skilled in the art can carry out various changes and improvement, and does not deviate from the scope of the utility model that is limited appended claims.

Claims

1. fan that is used to produce air stream; It is characterized in that; Said fan comprises nozzle (1) and is used to produce the air flow-producing device (2) through said nozzle air current; Said nozzle comprises inner passage (3) that is used to receive air-flow and the relief opening (4) that is used to launch air-flow, and said air flow-producing device comprises frame (6), be positioned at said frame and become the motor (9) of whole impeller chimney (7), the impeller (8) that is positioned at said impeller chimney and the said impeller rotary work of driving with said frame.

2. the fan that is used to produce air stream as claimed in claim 1 is characterized in that, said nozzle limits at least one opening (5), from the fan air outside by from the air-flow entrainment of said relief opening emission through said opening.

3. the fan that is used to produce air stream as claimed in claim 1 is characterized in that, said nozzle comprises inner housing part (15) and frame part (16), and said inner housing part and frame part limit said inner passage and said relief opening together.

4. like the described fan that is used to produce air stream of one of claim 1 to 3, it is characterized in that said air flow-producing device is a column.

5. like the described fan that is used to produce air stream of one of claim 1 to 3, it is characterized in that said air flow-producing device comprises and is positioned at said impeller chimney and at the diffuser (10) in said impeller downstream.

6. like the described fan that is used to produce air stream of one of claim 1 to 3; It is characterized in that; Said air flow-producing device comprises the cable that connects said motor and is positioned at said impeller chimney and at the diffuser in said impeller downstream, wherein said cable is connected to said motor through said diffuser.

7. air flow-producing device that is used to produce the fan of air stream; It is characterized in that said air flow-producing device comprises frame (6), be positioned at said frame and become the motor (9) of whole impeller chimney (7), the impeller (8) that is positioned at said impeller chimney and the said impeller rotary work of driving with said frame.

8. the air flow-producing device that is used to produce the fan of air stream as claimed in claim 7 is characterized in that said air flow-producing device is a column.

9. like the described air flow-producing device that is used to produce the fan of air stream of one of claim 7 to 8, it is characterized in that said air flow-producing device comprises and is positioned at said impeller chimney and at the diffuser (10) in said impeller downstream.

10. like the described air flow-producing device that is used to produce the fan of air stream of one of claim 7 to 8; It is characterized in that; Said air flow-producing device comprises the cable that connects said motor and is positioned at said impeller chimney and at the diffuser in said impeller downstream, wherein said cable is connected to said motor through said diffuser.