CN103629167A

CN103629167A - Fan

Info

Publication number: CN103629167A
Application number: CN201210307479.4A
Authority: CN
Inventors: 任文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2014-03-12

Abstract

The invention relates to a fan which comprises a base and a nozzle arranged on the base. The base comprises an outer shell and a device which is located inside the outer shell and is used for forming airflow passing through the nozzle. The outer shell comprises a side wall which comprises a cavity and a noise reduction component located in the cavity, and at least one through hole for air inlet is formed in the side wall. The fan has the advantages of being low in noise and the like.

Description

Fan

Technical field

The present invention relates to a kind of without blade fan.

Background technique

Without blade fan, due to the rotation blade that can produce air-flow stably and not expose, thereby be subject to liking of people.The Chinese patent application that on May 6th, 2009, publication number was CN 101424278A (application number: 20081057843.3) disclose a kind of without blade fan, this kind of fan comprises: pedestal and be arranged on the nozzle on described pedestal, in pedestal, be provided with the device for generation of the air-flow by described nozzle, this device comprises impeller chimney, be positioned at the impeller of impeller chimney and the motor of drives impeller rotary work, its nozzle has for receiving inner passage and the relief opening from the air-flow of pedestal, air-flow is injected by described relief opening, nozzle substantially extends and limits opening orthogonally about axis, the air of described fan outside is aspirated by the air-flow spraying from described relief opening by described opening.When the motor of this kind of fan and impeller work, can send larger noise, its use is subject to larger impact.

Summary of the invention

The object of the invention is to provide-fan that kind of noise is lower.This kind of fan, it is characterized in that, described fan comprises pedestal and is arranged on the nozzle on described pedestal, described pedestal comprises shell and is positioned at being used to form by the device of the air-flow of described nozzle of described shell, described shell comprises sidewall, described sidewall comprises cavity and is arranged in the noise reduction member of described cavity, and on described sidewall, is provided with at least one for the perforation of air inlet.

The described device that is used to form the air-flow by described nozzle comprises impeller chimney, is positioned at the impeller of impeller chimney and the motor of drives impeller rotation.

Advantageously, this kind of fan be because existence has the sidewall of cavity and noise reduction member, the noise that perforation is outwards propagated that passes through that can effectively absorb or decay and produced by impeller or motor, and the noise that whole fan is exported obviously reduces.

Preferably, described perforation is through described cavity.In a preferred embodiment, described perforation runs through the noise reduction member that is arranged in described cavity.

Preferably, described sidewall comprises skin and the internal layer that limits described cavity, and wherein said internal layer is surrounded by described skin, and described perforation runs through described internal layer and described skin.In a preferred embodiment, described perforation runs through the sidewall with outer and internal layer, and its ectomesoderm limits cavity together with internal layer, and its perforation aperture on internal layer is greater than its aperture on skin; In another preferred embodiment, described perforation runs through the sidewall with outer and internal layer, and its ectomesoderm limits cavity together with internal layer, and its perforation aperture on internal layer is less than its aperture on skin.

Described cavity comprises annular cavity and the cavity of bar shaped; The quantity of described cavity can be single, can be also a plurality of; Described cavity is along the size of sidewall thickness direction conventionally between 2mm to 45mm, preferably between 3mm to 35mm.

Described perforation can be various shape, can be circular, can be round rectangle, can also be other shape; The aperture of described perforation is conventionally between 0.5mm to 15mm, preferably between 1mm to 10mm.

Described noise reduction member comprises acoustic foam, and acoustic foam comprises sponge and glass wool; Described noise reduction member comprises noise reduction layer, and wherein, the thickness of noise reduction layer is between 2mm to 35mm; Described noise reduction member can be various shape, and preferably, described noise reduction member is annular.

Described nozzle comprises for accepting the inner passage of air-flow and for launching the relief opening of air-flow, and limits at least one opening, the air-flow penetrating from described relief opening by the air intake of fan outside by described opening.

The shape of described nozzle can be circular, oval, can be that part circular, part are oval, can also be other shape.

Described fan can be desk fan, can be wall fan, can be ceiling fan, can be flooring fan, can also be the fan of other type.The miscellaneous function of described fan can comprise illumination, adjusting and the swing of fan.

Accompanying drawing explanation

Figure l is the front schematic view of fan of the present invention.

Fig. 2 is the side view of fan shown in Fig. 1.

Fig. 3 is that the fan shown in Fig. 1 is along the sectional view of A-A line intercepting.

Fig. 4 has shown second embodiment of the present invention.

Fig. 5 is that the fan shown in Fig. 4 is along the sectional view of B-B line intercepting.

Embodiment

Figure l is that Fig. 2 is the side view of the fan shown in figure l from the structural representation of the fan of the present invention of device forward observation, and Fig. 3 is the sectional view that the fan shown in figure l intercepts along A-A line.From Fig. 1 to Fig. 3, can find out, this fan comprises pedestal 1 and is arranged on the nozzle 2 on pedestal 1; Pedestal 1 comprises shell and is positioned at being used to form by the device of the air-flow of described nozzle of described shell, and described device comprises impeller chimney 13, is positioned at the impeller 14 of impeller chimney and the motor 15 of drives impeller rotary work; Described shell comprises sidewall 4, and sidewall 4 comprises cavity 3 and is arranged in the noise reduction member 5 of cavity 3, is provided with a plurality of perforation 16 for air inlet on sidewall 4; Nozzle 2 comprises and limits interior side body 9 and the outside housing 10 of inner passage 7 and be positioned at the relief opening 8 on side body 9, and nozzle 2 defines one and is positioned at central opening 6, and opening 6 has the axis X that is positioned at central part.

From Fig. 3, it can also be seen that, sidewall 4 comprises skin 11 and internal layer 12, and wherein internal layer 12 is surrounded by skin 11, internal layer 12 limits cavity 3 together with outer 11, cavity 3 is a toroidal cavity, is provided with noise reduction member 5 in this toroidal cavity, and this noise reduction member is one deck sponge; This cavity is of a size of 6mm along the thickness direction of sidewall 4, and the height of this cavity is 125mm.

During apparatus of the present invention work, the perforation 16 of air from sidewall 4 enters in shell, the device that is used to form the air-flow by described nozzle that comprises impeller and motor that is positioned at shell is converted to by the air entering the air-flow that air pressure is higher, this air-flow having boosted is admitted in the inner passage 7 of nozzle 2, and the air-flow that inner passage 7 receives is launched by relief opening 8, air from fan outside is entrainmented by opening 6 by the air-flow of launching from relief opening, the air-flow of launching from relief opening 8 forms the total air flow of output forward with the air-flow being entrainmented, the sidewall with cavity 3 and noise reduction member 5, can effectively absorb or decay impeller or motor by the outside noise of propagating of perforation 16.

Fig. 4 has shown second embodiment of the present invention, and Fig. 5 is that the fan shown in Fig. 4 is along the sectional view of B-B line intercepting.From Fig. 4 and Fig. 5, can clearly be seen that, the present embodiment is similar to first embodiment, and just both pedestals are different.The pedestal of the present embodiment is divided into upper and lower two-part, its upper part relatively lower part slides, its sidewall 4 comprises upper side wall 4a and lower wall 4b, and its lower wall 4b comprises the cavity 3 being limited by skin 11 and internal layer 12, and is provided with noise reduction member 5 in this cavity 3.

Although shown and described and thought at present preferred embodiments of the invention, apparent, those skilled in the art can carry out various changes and improvements, and does not deviate from scope of the present invention as defined in appended claims.

Claims

1. a fan, it is characterized in that, described fan comprises pedestal (1) and is arranged on the nozzle (2) on described pedestal, described pedestal comprises shell and is positioned at being used to form by the device of the air-flow of described nozzle of described shell, described shell comprises sidewall (4), described sidewall comprises cavity (3) and is arranged in the noise reduction member (5) of described cavity, and on described sidewall, is provided with at least one perforation for air inlet (16).

2. the fan as described in claim l, is characterized in that, described perforation runs through described noise reduction member.

3. fan as claimed in claim 1, is characterized in that, described perforation is through described cavity.

4. the fan as described in one of claim l to 3, is characterized in that, described sidewall comprises skin (11) and the internal layer (12) that limits described cavity, and wherein said internal layer is surrounded by described skin, and described perforation runs through described internal layer and described skin.

5. the fan as described in one of claim l to 3, is characterized in that, described cavity along the size of the thickness direction of described sidewall between 3mm to 35mm.

6. the fan as described in one of claim l to 3, is characterized in that, the aperture of described perforation is between 1mm to 10mm.

7. the fan as described in one of claim l to 3, is characterized in that, described noise reduction member comprises acoustic foam.

8. the fan as described in one of claim l to 3, is characterized in that, described noise reduction member comprises noise reduction layer, and wherein, the thickness of noise reduction layer is between 2mm to 35mm.

9. the fan as described in one of claim l to 3, is characterized in that, described in be used to form the air-flow by described nozzle device comprise impeller chimney (13), be positioned at the impeller (14) of impeller chimney and the motor (15) of drives impeller rotation.

10. the fan as described in one of claim l to 3, it is characterized in that, described nozzle comprises inner passage (7) and relief opening (8), and limits at least one opening (6), and the air-flow penetrating from described relief opening passes through described opening by the air intake of fan outside.