CN202228443U

CN202228443U - Bladeless fan

Info

Publication number: CN202228443U
Application number: CN2011202962845U
Authority: CN
Inventors: 任文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-15
Filing date: 2011-08-15
Publication date: 2012-05-23
Anticipated expiration: 2021-08-15

Abstract

The utility model provides a bladeless fan, relating to a fan device. The bladeless fan comprises a nozzle, an airflow-generating device, and a flow director, wherein the flow director is positioned on the periphery of the nozzle; the nozzle comprises a container, as well as an air exhaust hole and an air inlet arranged on the wall of the container; the airflow-generating device is positioned in the container; the inner side surface of the flow director and the outer side surface of the container are used for limiting a flow-guiding channel; the airflow-generating device used for converting air entering from the air inlet into high-pressure airflow which is ejected through the air exhaust hole; air surrounding the nozzle is rolled up and absorbed by the airflow ejected from the air exhaust hole and passes through the flow-guiding channel. The airflow output by the bladeless fan has low turbulence and more liner airflow outline.

Description

No blade fan

Technical field

The utility model relates to a kind of fan assembly.

Background technique

On June 22nd, 2011, notice of authorization number was the Chinese patent of CN 201874903U (application number: 201020656697.5) disclose a kind of no blade fan that is used to produce air stream; This kind fan comprises: nozzle be used to produce member through the high pressure draught of said nozzle; It is characterized in that; Said nozzle comprises container and is arranged on the relief opening on the outer wall around the said container; Said high pressure draught is sprayed through said relief opening, and said fan assembly air outside is aspirated by the air-flow that said relief opening sprayed, and said member has at least part to be arranged in said container.

This kind fan structure is compact and can use near objects such as walls, but its air-out disperses, it transmits the close together of wind, therefore haves much room for improvement or optimizes.

Summary of the invention

The utility model aims to provide a kind of improved no blade fan to overcome above-mentioned defective of the prior art.The purpose of the utility model is that a kind of no blade fan that can produce the air stream of low turbulent flow will be provided.

In order to achieve the above object; The technological scheme that the utility model adopts is: the no blade fan that is used to produce air stream; It is characterized in that; Said fan comprises nozzle, air flow-producing device and is positioned at the fluid director of said nozzle periphery; Said nozzle comprises container, is arranged on relief opening and suction port on the said container wall, and said air flow-producing device is arranged in said container, and the inner surface of said fluid director and the outer surface of said container limit guide channel; Said air flow-producing device will convert high pressure draught into and spray through said relief opening from the air that said suction port gets into, the air of said nozzle is entrainmented from the air-flow that said relief opening sprayed and through said guide channel.

Said high pressure draught is meant that air pressure is higher than the air-flow of said fan ambient air pressure.

For make said fluid director firmly be arranged on said nozzle around, said fan also comprises said fluid director is fixed in the fixed block on the said container.

Said air flow-producing device comprises motor, impeller chimney and by said motor-driven impeller; Usually impeller can be positioned at impeller chimney; Said motor can be an inner rotor motor, also can be external rotor electric machine; Said motor can be an AC induction motor, and dc brushless motor can also be other motor; Said impeller can be a centrifugal impeller, can be axial impeller, can be mixed flow impeller, can also be other impeller.

Said container can adopt multiple shape, and said container comprises hydrostatic column, elliptical cylinder-shape container, part hydrostatic column, part elliptical cylinder-shape container, can also comprise other shapes of containers.

Said fluid director can adopt multiple shape, and said fluid director comprises ring fluid director, oval ring fluid director, the annular fluid director of part, part oval ring fluid director, can also comprise the fluid director of other shape.

Said container and said fluid director are normally concentric.In a preferred embodiment, said container is a hydrostatic column, and said fluid director is a ring fluid director concentric with hydrostatic column.In another preferred embodiment, said container is the elliptical cylinder-shape container, and said fluid director is an oval ring fluid director concentric with the elliptical cylinder-shape container.

Said guide channel can adopt multiple shape, and its cross section can be a ring, can be oval ring, also can be the part annular, can also be other shape.

The Way out of said relief opening and the angle between the axis are usually between 0 ° to 30 °, preferably between 0 ° to 20 °; The inner surface of said fluid director and the angle between the axis are usually between 0 ° to 30 °, preferably between 0 ° to 20 °; Angle between the outer surface of said container and the said axis is usually between 0 ° to 30 °, preferably between 0 ° to 20 °.

Spacing between the outer surface of said container and the inner surface of said fluid director is usually between 5 millimeters to 200 millimeters, preferably between 10 millimeters to 150 millimeters; This spacing can be fixed along said axial direction, also can change.

The length of the said axial direction in said fluid director edge is usually between 15 millimeters to 250 millimeters, preferably between 20 millimeters to 150 millimeters.

In order to prevent mosquito etc. through said guide channel, said fan can also comprise the filter screen that is arranged on the said guide channel.

In order to reduce the noise of said fan, can on the wall of said internal tank, quieter material be set, also can the sound insulation chamber be set at the intake grill place of said container.

Attractive in appearance or expand its use in order to improve it, can decoration or daily apparatus be set in said container the place ahead central region, as draw, animal toy, mirror etc.

Said no blade fan can be a desk fan, can be ceiling fan, can be wall fan, also can be stand fan, can also be the fan of other form.

The utlity model has following good effect:

Because the fluid director that the utility model is provided with in the periphery of nozzle, the inner surface of its fluid director and the outer surface of said container define guide channel, and the air-flow that fan is exported has low turbulent flow and linear more air-flow profile.The air-flow of linear low turbulent flow is from the point of release ejection or discharge, and with respect to air-flow of the prior art, reaches energy and the speed still less still less of loss before the turbulent flow; Benefit for the user is, even standoff distance far also can be felt nice and cool effect, and the whole efficiency of fan has improved.In addition owing to have fluid director or guide channel, help the zone that makes air flow direction specific, and can form multiple moulding attractive in appearance, expand its using scope.

Description of drawings

Fig. 1 is the schematic representation of the no blade fan of the utility model;

Fig. 2 is a no blade fan shown in Figure 1 generalized section along the A-A line;

Fig. 3 is second embodiment of the no blade fan of the utility model;

Fig. 4 is the 3rd embodiment of the no blade fan of the utility model.

Embodiment

Fig. 1 is the schematic representation of the no blade fan of the utility model, and Fig. 2 is a no blade fan shown in Figure 1 generalized section along the A-A line.Visible from Fig. 1 and Fig. 2, the utility model comprises: support 13, be arranged on nozzle, air flow-producing device 1 and fluid director 2 on the support 13; Nozzle comprises hydrostatic column 3, is arranged on the relief opening 4 on the hydrostatic column sidewall and is arranged on the suction port 15 on the hydrostatic column bottom; The air flow-producing device 1 that is positioned at hydrostatic column 3 comprises motor 8, impeller chimney 11 and is arranged on the impeller 10 that is driven by said motor shaft 9 of impeller chimney 11 that motor 8 is connected on the impeller chimney 11 through link 12; Ring fluid director 2 be positioned at nozzle around, be fixed on the hydrostatic column 3 through fixed block 14, ring fluid director 2 is concentric with hydrostatic column 3; The inner surface 7 of ring fluid director 2 and the outer surface 6 of hydrostatic column 3 define a guide channel 5.

In the present embodiment, the Way out of relief opening 4 becomes one to be about 20 ° angle with axis X; The inner surface 7 and the angle between the axis X of ring fluid director 2 are about 0 °; The outer surface 6 and the angle between the axis X of hydrostatic column 3 also are about 0 °; Space D between the outer surface 6 of hydrostatic column 3 and the inner surface 7 of ring fluid director 2 is about 35 millimeters; Ring fluid director 2 is about 70 millimeters along the length of axis X direction.

During the utility model work; Air gets into from a plurality of intake grills 15 of hydrostatic column 3; Air flow-producing device 1 will convert high pressure draught from the air that suction port gets into into and spray through relief opening 4; The air of nozzle is entrainmented by the air-flow that is sprayed from relief opening 4 and through guide channel 5, and air-flow that is sprayed from relief opening 4 and the air-flow that is entrainmented constitute the total air flow of output forward.

Fig. 3 shows second embodiment of the no blade fan of the utility model.From figure, find out that easily present embodiment is similar with first embodiment illustrated in figures 1 and 2, just the quantity of fixed block 14 is different.In the present embodiment, three fixed blocks 14 are arranged, ring fluid director 2 is firmly secured on the hydrostatic column 3 through 3 fixed blocks 14 like this.It can also be seen that from Fig. 3 three fixed blocks 14, ring fluid director 2 and hydrostatic column 3 threes have constituted three guide channels 5 jointly.

Fig. 4 shows the 3rd embodiment of the no blade fan of the utility model.From figure, find out that easily present embodiment is also similar with first embodiment illustrated in figures 1 and 2, just the shape of the ring fluid director 2 of present embodiment is different.In the present embodiment, the inner surface 7 of ring fluid director 2 is about 10 ° with the angle of axis X, and in first embodiment, this angle is about 0 °.

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. no blade fan that is used to produce air stream; It is characterized in that; Said fan comprises nozzle, air flow-producing device (1) and is positioned at the fluid director (2) of said nozzle periphery; Said nozzle comprises container (3), is arranged on relief opening (4) and suction port (15) on the said container wall; Said air flow-producing device is arranged in said container; The outer surface (6) of inner surface of said fluid director (7) and said container limits guide channel (5), and said air flow-producing device will convert high pressure draught into and spray through said relief opening from the air that said suction port gets into, and the air of said nozzle is entrainmented from the air-flow that said relief opening sprayed and through said guide channel.

2. no blade fan as claimed in claim 1 is characterized in that, said fan also comprises said fluid director is fixed in the fixed block (14) on the said container.

3. like the described no blade fan of one of claim 1 to 2, it is characterized in that said air flow-producing device comprises motor (8), impeller chimney (11) and by said motor-driven impeller (10).

4. like the described no blade fan of one of claim 1 to 2, it is characterized in that said container and said fluid director are concentric, said container comprises hydrostatic column, and said fluid director comprises the ring fluid director.

5. like the described no blade fan of one of claim 1 to 2, it is characterized in that said container and said fluid director are concentric, said container comprises the elliptical cylinder-shape container, and said fluid director comprises the oval ring fluid director.

6. like the described no blade fan of one of claim 1 to 2, it is characterized in that the angle between the inner surface of said fluid director and the axis (X) is between 0 ° to 20 °.

7. like the described no blade fan of one of claim 1 to 2, it is characterized in that the angle between the outer surface of said container and the said axis is between 0 ° to 20 °.

8. like the described no blade fan of one of claim 1 to 2, it is characterized in that the spacing (D) between the outer surface of said container and the inner surface of said fluid director is between 10 millimeters to 150 millimeters.

9. like the described no blade fan of one of claim 1 to 2, it is characterized in that the length of said fluid director edge said axis (X) direction is between 20 millimeters to 150 millimeters.

10. like the described no blade fan of one of claim 1 to 2, it is characterized in that said fan also comprises the filter screen that is arranged on the said guide channel.