CN202789772U

CN202789772U - Fan

Info

Publication number: CN202789772U
Application number: CN 201220427461
Authority: CN
Inventors: 任文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2013-03-13
Anticipated expiration: 2022-08-27

Abstract

The utility model relates to a fan, which comprises a base and a nozzle arranged on the base, wherein the base comprises a shell and a device which is positioned in the shell and is used for forming air current passing through the nozzle; the shell comprises a side wall; and the side wall comprises a cavity and a silencing member positioned in the cavity, and is provided with a through hole for introducing air. The fan has the characteristics of low noise and the like.

Description

Fan

Technical field

The utility model relates to a kind of without blade fan.

Background technique

The rotation blade that does not expose owing to can produce air-flow stably without blade fan, 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 fan comprises: pedestal and the nozzle that is installed on the described pedestal, be provided with the device for generation of the air-flow that passes through described nozzle in the pedestal, 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 the inner passage and the relief opening that receive from the air-flow of pedestal, air-flow is injected by described relief opening, nozzle basically extends orthogonally about axis and limits opening, and the air of described fan outside is aspirated by the air-flow that sprays from described relief opening by described opening.Can send larger noise when the motor of this kind fan and impeller work, its use is subject to larger impact.

Summary of the invention

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

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 fan is owing to exist the sidewall with cavity and noise reduction member, the noise that pass through the outside propagation of perforation that can effectively absorb or decay and be produced by impeller or motor, and the noise that whole fan is exported obviously reduces.

Preferably, described cavity is passed in described perforation.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 and internal layer limit cavity together, and it is bored a hole in the aperture on the internal layer greater than its aperture on skin; In another preferred embodiment, described perforation runs through the sidewall with outer and internal layer, and its ectomesoderm and internal layer limit cavity together, and it is bored a hole in the aperture on the internal layer less than its aperture on skin.

Described cavity comprises the cavity of annular and the cavity of bar shaped; The quantity of described cavity can be single, also can be a plurality of; Described cavity is along the size of sidewall thickness direction usually between the 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 usually 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 the 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 be used to the inner passage of accepting air-flow and is used for the relief opening of emission air-flow, and limits at least one opening, the air-flow that penetrates from described relief opening with 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.

Description of drawings

Figure l is the front schematic view of fan of the present utility model.

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

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

Fig. 4 has showed second embodiment of the present utility model.

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

Embodiment

Figure l is that Fig. 2 is the side view of the fan shown in the figure l from the structural representation of fan of the present utility model of device forward observation, and Fig. 3 is the fan shown in the figure l along the sectional view that A-the A line intercepts.Can find out that from Fig. 1 to Fig. 3 this fan comprises pedestal 1 and the nozzle 2 that is arranged on the pedestal 1; Pedestal 1 comprises shell and is positioned at the device by the air-flow of described nozzle of being used to form of described shell that 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 at sidewall 4; Nozzle 2 comprises interior side body 9 and the outside housing 10 that limits inner passage 7 and is positioned at relief opening 8 on the side body 9, and nozzle 2 defines an opening 6 that is positioned at central authorities, and opening 6 has the axis X that is positioned at central part.

It can also be seen that from Fig. 3 sidewall 4 comprises skin 11 and internal layer 12, wherein internal layer 12 is surrounded by skin 11, internal layer 12 and outer 11 limits cavity 3 together, 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 fan work of the present utility model, air enters in the shell from the perforation 16 on the sidewall 4, 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 the higher air-flow of air pressure with the air that enters, this air-flow that has 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 the fan outside is entrainmented by opening 6 by the air-flow of launching from relief opening, consist of the forward total air flow of output from relief opening 8 air-flow of launching and the air-flow that is entrainmented, sidewall with cavity 3 and noise reduction member 5, the noise that can effectively absorb or decay impeller or motor be outwards propagated by perforation 16.

Fig. 4 has showed second embodiment of the present utility model, and Fig. 5 is the sectional view that fan shown in Figure 4 intercepts along B-B line.Can clearly be seen that from Fig. 4 and Fig. 5 present embodiment is similar to first embodiment, just both pedestals are different.The pedestal of present embodiment is divided into up and down 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 that is limited by skin 11 and internal layer 12, and is provided with noise reduction member 5 in this cavity 3.

Although showed and described and thought at present preferred embodiment of the present utility model, 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

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

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

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

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

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

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

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

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

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

10. such as the described fan of 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), the air-flow that penetrates from described relief opening with the air intake of fan outside by described opening.