CN102777427A

CN102777427A - Bladeless fan

Info

Publication number: CN102777427A
Application number: CN2011101184494A
Authority: CN
Inventors: 任文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-09
Filing date: 2011-05-09
Publication date: 2012-11-14

Abstract

The invention discloses a bladeless fan which is characterized by comprising a nozzle (1) and a member (2) used for generating airflow passing through the nozzle, wherein the nozzle comprises an inner channel (3) used for receiving the airflow, an exhaust hole (4) and a support device (5), the support device is arranged in the inner channel having a certain distance from the exhaust hole, is fixed to the wall of the inner channel, and is used for supporting or reinforcing the inner channel, the airflow received by the inner channel is jetted through the exhaust hole, at least one opening (6) is limited by the nozzle, and air from the outer part of the bladeless fan is entrained through airflow jetted from the exhaust hole to pass through the opening. The bladeless fan has the characteristics of stable structure and low noise.

Description

No blade fan

Technical field

The present invention relates to a kind of fan assembly that produces air stream.

Background technique

The one Chinese patent application that on June 23rd, 2010, publication number was CN 101749289A (application number: 200910253241.6) disclose a kind of no blade fan that is used to produce air stream; The no blade fan of this kind comprises nozzle and is used to produce the member through the air-flow of nozzle; This nozzle comprises inner passage, relief opening and the spacing means that is used to receive air-flow, and relief opening is limited the apparent surface of nozzle, and spacing means is positioned at relief opening; Be used to separate the apparent surface of relief opening; The air communication that the inner passage received is crossed relief opening and is sprayed, and nozzle limits an opening, is entrainmented through opening from the air-flow that relief opening sprayed from no blade fan air outside.

Because the no blade fan of this kind is provided with spacing means in relief opening, not only had a strong impact on air communication and crossed the normal injection of relief opening or mobile, and increased air-flow from noise that relief opening sprayed.

Summary of the invention

The present invention aims to provide a kind of improved no blade fan assembly to overcome above-mentioned defective of the prior art.

First aspect of the present invention is that the no blade fan that a kind of structure is firm, noise is low will be provided; This kind is used to produce the no blade fan of air stream; It is characterized in that; Said no blade fan comprise nozzle be used to produce member through the air-flow of said nozzle, said nozzle comprises inner passage, relief opening and the support device that is used to receive air-flow, said support device is arranged in a certain distance from the inner passage of relief opening and with the wall of inner passage to be fixed; Be used for supporting or reinforcing the inner passage; The air communication that the inner passage received is crossed relief opening and is sprayed, and nozzle limits at least one opening, is entrainmented through opening from the air-flow that relief opening sprayed from no blade fan air outside.

Cross the normal injection of relief opening or flow in order not influenced air communication; And reduce air-flow from noise that relief opening sprayed; Said support device is preferably away from relief opening; The distance of said support device and relief opening is more preferably greater than 5 millimeters, and in a preferred embodiment, the distance of said support device and relief opening is greater than 20 millimeters.

In a preferred embodiment, said inner passage is made up of inner shell and external casing, and it is whole that said support device becomes with inner shell; In another preferred embodiment, said inner passage is made up of inner shell and external casing, and it is whole that said support device becomes with external casing; In yet another preferred embodiment; Said inner passage is made up of inner shell and external casing; Said support device comprises the first sub-support device and the second sub-support device of male and female collocation; Wherein the first sub-support device becomes whole with inner shell, and it is whole that the second sub-support device becomes with external casing.

In a preferred embodiment, said support device has two ends, and the internal surface of one of which end and inner shell is fixed, and its other end contacts with the internal surface of external casing.

Said support device can have a plurality of, and its quantity of selecting for use is mainly confirmed according to the length of inner passage and the intensity of inner channel walls.

Support device can adopt multiple shape, can be cylindrical, prismatic, can be the cylindricality of strip, can also be other shape; Support device can also combine noise-cancelling theory design, alleviates or eliminate the noise that air-flow flows in the nozzle interior passage.Support device can become integrally to make with the wall that constitutes the inner passage, to reduce the quantity that constitutes nozzle member, can certainly make separately, and the support device of making separately can be fixed on the wall of inner passage through materials such as binders.

The said member that is used to produce through said nozzle air current can be set in the pedestal, and said nozzle is set on the pedestal; The said member that is used to produce through said nozzle air current can all be set in the said inner passage, also can partly be set in the said inner passage.

Said its shape of nozzle can be circular, oval, can be that part circular, part are oval, can also be other shape, for example can be the loop of a plurality of closures.

The said member that is used to produce through said nozzle air current generally includes motor and by motor-driven impeller; Motor can be a dc brushless motor, also can be AC motor; Impeller can be horizontal impeller, can be mixed flow impeller, can also be other impeller.

Said no blade fan usually can be by the technology of shaking the head of existing fan or is increased the coverage area of frame with the wind that increases said no blade fan and exported of shaking the head.

Said no blade 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.

Second aspect of the present invention is that the nozzle that a kind of structure is firm, noise is low will be provided; This kind is used to produce the nozzle of the no blade fan of air stream; It is characterized in that said nozzle comprises inner passage, relief opening and the support device that is used to receive air-flow, said support device is arranged in a certain distance from the inner passage of relief opening and with the wall of inner passage to be fixed; Be used for supporting or reinforcing the inner passage; The air communication that the inner passage received is crossed relief opening and is sprayed, and nozzle limits at least one opening, is entrainmented through opening from the air-flow that relief opening sprayed from no blade fan air outside.

In a preferred embodiment, said inner passage is made up of inner shell and external casing, and it is whole that said support device becomes with inner shell.In another preferred embodiment; Said inner passage is made up of inner shell and external casing; Said support device comprises the first sub-support device and the second sub-support device of male and female collocation; Wherein the first sub-support device becomes whole with inner shell, and it is whole that the second sub-support device becomes with external casing.

Slot-shaped outlet is usually adopted in the outlet of said relief opening, said relief opening at the width in its outlet port usually between 0.5 millimeter to 10 millimeters, preferably between 1 millimeter to 6 millimeters; The Way out of said relief opening and the angle of axial direction are usually less than 30 degree, preferably less than 20 degree.

The present invention has following good effect:

No blade fan of the present invention or be used to not have the nozzle of blade fan and since support device with from relief opening certain distance is arranged, make air-flow can get into relief opening smoothly and carry out normal injection, reduced air communication and crossed the noise that relief opening sprays; Support device all compares firmly inner passage and relief opening simultaneously, is difficult for taking place deformation.

Description of drawings

Below will embodiments of the invention be described with reference to appended accompanying drawing, wherein:

Fig. 1 is the structural representation of no blade fan of the present invention;

Fig. 2 is a no blade fan shown in Figure 1 sectional view along the intercepting of A-A line;

Fig. 3 is a no blade fan shown in Figure 1 sectional view along the intercepting of B-B line;

Fig. 4 has showed the sectional view of another embodiment's no blade fan along the intercepting of B-B line;

Fig. 5 has showed another embodiment of no blade fan of the present invention.

Embodiment

Fig. 1 is the structural representation from the no blade fan of the present invention of device forward observation.This no blade fan comprises ring nozzle 1 that defines central opening 6 and the member 2 that is arranged on pedestal 11 interior generations the passing through air-flow of nozzle 1, and nozzle 1 is set on the pedestal.And comprise the inner passage 3 that constituted by inner shell 7 and external casing 8, be arranged on four support devices 5 and slot-shaped relief opening 4 in the inner passage 3 referring to figs. 2 and 3, this ring nozzle 1.This ring nozzle 1 is arranged as roughly and extends about X orthogonal axe ground.

During work; The air-flow that member 2 is produced is admitted in the inner passage 3 of ring nozzle 1; And the air communication that inner passage 3 is received is crossed annulus shape relief opening 4 and is sprayed; Entrainmented through central opening 6 from the air-flow that relief opening sprayed from no blade fan air outside, constituted the total air flow of output forward from relief opening 4 air-flow that is sprayed and the air-flow that is entrainmented.

Fig. 2 and Fig. 3 have further shown the detail of no blade fan.Visible from Fig. 2 and Fig. 3; The inner shell 7 that is positioned at the front has formed inner passage 3 with the external casing 8 that is positioned at the back; Support device 5 is set at the middle part of inner passage 3; One end of support device 5 and the internal surface of inner shell 79 are fixing, and the other end of support device 5 contacts with the internal surface 10 of external casing 8.In fact in the present embodiment, support device 5 is integral with inner shell 7, and support device 5 is about 30 millimeters with the distance of relief opening 4.

Fig. 4 has showed the sectional view of another embodiment's no blade fan along the intercepting of B-B line.Compare the support device 5 among this embodiment and the close together of relief opening 4 with embodiment shown in Figure 3.In the present embodiment, an end of support device 5 and the edge of inner shell 7 are fixed together, and it is simple relatively that its support device 5 and inner shell 7 carry out the integral body manufacturing like this.

Fig. 5 shows another embodiment of no blade fan of the present invention.As can be seen from the figure; The no blade fan of present embodiment comprises support 12, is installed in support 12 top nozzles 1; Nozzle 1 has inner shell and external casing (not marking among the figure); These two housings have constituted the inner passage of accepting air-flow 3 of nozzle 1, and the member 2 that is used for producing the air-flow through said nozzle is set at the inner passage 3 that is positioned at the middle part.From this figure, can find out, in inner passage 3, be provided with six support devices 5, nozzle 1 defines four openings 6 and has four slot-shaped relief openings 4.Present embodiment also has the characteristics that structure is firm, noise is low.

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

Claims

1. no blade fan that is used to produce air stream; It is characterized in that; Said no blade fan comprises nozzle (1) and is used to produce the member (2) through the air-flow of said nozzle, and said nozzle comprises inner passage (3), relief opening (4) and the support device (5) that is used to receive air-flow, and said support device is arranged in a certain distance from the inner passage of relief opening and with the wall of inner passage to be fixed; Be used for supporting or reinforcing the inner passage; The air communication that the inner passage received is crossed relief opening and is sprayed, and nozzle limits at least one opening (6), is entrainmented through opening from the air-flow that relief opening sprayed from no blade fan air outside.

2. the no blade fan that is used to produce air stream as claimed in claim 1 is characterized in that, said inner passage is made up of inner shell (7) and external casing (8), and said support device and inner shell become integral body with a housing in the external casing.

3. the no blade fan that is used to produce air stream as claimed in claim 1; It is characterized in that; Said inner passage is made up of inner shell and external casing; Said support device comprises the first sub-support device and the second sub-support device of male and female collocation, and wherein the first sub-support device becomes whole with inner shell, and it is whole that the second sub-support device becomes with external casing.

4. the no blade fan that is used to produce air stream as claimed in claim 1; It is characterized in that; Said inner passage is made up of inner shell and external casing; Said support device has two ends, and the internal surface of one of which end and inner shell (9) is fixing, and its other end contacts with the internal surface (10) of external casing.

5. like the described no blade fan that is used to produce air stream of one of claim 1 to 4, it is characterized in that the distance of said support device and relief opening is greater than 10 millimeters.

6. like the described no blade fan that is used to produce air stream of one of claim 1 to 4, it is characterized in that said support device has a plurality of.

7. like the described no blade fan that is used to produce air stream of one of claim 1 to 4, it is characterized in that the said member that is used to produce through said nozzle air current is set in the pedestal (11), said nozzle is set on the pedestal.

8. nozzle that is used to produce the no blade fan of air stream; It is characterized in that; Said nozzle comprises inner passage (3), relief opening (4) and the support device (5) that is used to receive air-flow; Said support device is arranged in a certain distance from the inner passage of relief opening and with the wall of inner passage to be fixed, and is used for supporting or reinforcing the inner passage, and the air communication that the inner passage received is crossed relief opening and sprayed; Nozzle limits at least one opening (6), is entrainmented through opening from the air-flow that relief opening sprayed from no blade fan air outside.

9. the no blade fan that is used to produce air stream as claimed in claim 8 is characterized in that said inner passage is made up of inner shell and external casing, and said support device and inner shell become whole with a housing in the external casing.

10. the no blade fan that is used to produce air stream as claimed in claim 8; It is characterized in that; Said inner passage is made up of inner shell and external casing; Said support device comprises the first sub-support device and the second sub-support device of male and female collocation, and wherein the first sub-support device becomes whole with inner shell, and it is whole that the second sub-support device becomes with external casing.