CN202381413U

CN202381413U - Fan blade-free fan air duct

Info

Publication number: CN202381413U
Application number: CN2011204782565U
Authority: CN
Inventors: 廖送邦; 李曙光
Original assignee: Gree Zhongshan Small Home Appliances Co Ltd; Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Zhongshan Small Home Appliances Co Ltd; Gree Electric Appliances Inc of Zhuhai
Priority date: 2011-11-26
Filing date: 2011-11-26
Publication date: 2012-08-15
Anticipated expiration: 2021-11-26

Abstract

The utility model discloses a flabellum-free fan air duct, which comprises a base body and a large air outlet ring positioned at the top of the base body, wherein the lower end of the base body is provided with a main air inlet, the inner side of the rear edge of the large air outlet ring is provided with a first nozzle used for emitting air flow, and a first guide air duct communicating the main air inlet and the first nozzle of the large air outlet ring is arranged in the base body; a circular truncated cone-shaped air outlet body is further arranged at the center of the inner side of the large air outlet ring at the top of the base body, a support column connected with the air outlet body is arranged on the base body, a second nozzle which is overlapped with the circle center of the first nozzle and is oppositely arranged with a nozzle is arranged at the outer side of the rear edge of the air outlet body, and a second flow guide air channel communicated with the main air inlet and the second nozzle is arranged in the air outlet body and the support column; the inner wall of the large air outlet ring and the outer wall of the air outlet body form an annular bell-mouth-shaped exhaust ring along the air outlet direction of the nozzle.

Description

No flabellum fan air channel

[technical field]

The utility model relates to fan air-out assembly, relates in particular to a kind of no flabellum fan air channel.

[background technique]

Existing fan is swept wind apparatus; Be that motor part drives the structure of rotating flabellum side by side mostly, in rotation process, sweep fans in order to prevent to touch; And cover with protective net sweeping fans; But can cause sweeping fans when air-supply to distinguished and admirable obstruction, and can not it all be covered again, have the danger of touching equally.In order to eliminate this potential safety hazard; Also be convenient to clean; Some no flabellum fans have appearred on the market, like disclosed a kind of " no flabellum fan " among the Chinese patent CN201120007632.2, comprise main body be positioned at the main body top go out vane greatly; Said main body is provided with intake grill, is provided with the water conservancy diversion air channel in the main body; Saidly go out vane greatly and be provided with exhaust outlet, go out greatly to be provided with the secondary booster air channel in the vane; Said intake grill, water conservancy diversion air channel, secondary booster air channel and exhaust outlet are interconnected; Said main body top go out greatly the vane inboard also be provided with one identical with said big air-out ring structure, and the center of circle overlapping go out vane for a short time.Yet, above-mentioned this no flabellum fan in actual use because it is bigger to go out the ring body of vane; And each goes out vane all is single exhaust outlet; Can cause wind-force dispersion, blowing distance weak point, the noise of fan big, can't satisfy user's demand, also have influence on the popularization of product.

[model utility content]

The utility model provides the two air channels of a kind of employing two single vane structures of exhaust outlet; Utilize underbalance effect; The high velocity air of two exhaust outlets drives ambient air and is blown out forward by a single vane together; Increase air quantity and blowing distance, blowing is concentrated, and reaches the no flabellum fan air channel of energy-conserving and environment-protective, safety, noise reduction.

In order to realize above-mentioned model utility purpose, the technological scheme that the utility model adopts is:

No flabellum fan air channel; Comprise base body be positioned at the base body top go out vane greatly; The lower end of said base body is provided with main air inlet; The trailing edge inboard that goes out vane greatly is provided with first nozzle that is used to launch air-flow, is provided with in the base body to be communicated with main air inlet and the first water conservancy diversion air channel that goes out vane first nozzle greatly; The inboard center of vane that goes out greatly at said base body top also is provided with a round table-like air-out body; On base body, be provided with the supporting post that is connected with the air-out body; The trailing edge outside of air-out body is provided with second nozzle overlapping with the center of circle of first nozzle and that spout is oppositely arranged, is provided with the second water conservancy diversion air channel that is communicated with the main air inlet and second nozzle in said air-out body and the supporting post; The outer wall of said inwall that goes out vane greatly and air-out body forms the toroidal air draft ring of ring-type along the nozzle air-out direction.

It is said that to go out vane greatly concordant with the front/rear end of air-out body.

The said second water conservancy diversion air channel forms an enclosed space in the air-out body, the front and back side of enclosed space is respectively the air channel inner panel and the air channel outside plate of air-out body.

Said air channel inner panel and air channel outside plate are the surface plate that is parallel to each other.

The beneficial effect of the utility model is:

The utility model adopts underbalance effect; Overlapping through the center of circle and spout is oppositely arranged first nozzle and second nozzle; And the outer wall that goes out inwall and the air-out body of vane greatly forms the toroidal air draft ring of ring-type along the nozzle air-out direction, and when having high pressure draught in the chamber, air channel, high pressure draught will be from the spout narrow slit interannular ejection of first nozzle and second nozzle; Drive its peripheral air-flow to fore blow in its corresponding space production negative pressure; All air-flows merge produces by boasting forward together, and air quantity is bigger, and efficient is higher; And the blowing distance, blowing is concentrated, and noise is littler.

[description of drawings]

Fig. 1 is the sectional structure chart of the utility model;

Fig. 2 is the utility model face upwarding stereogram;

Fig. 3 is the utility model side isometric view.

[embodiment]

Extremely shown in Figure 3 like Fig. 1; No flabellum fan air channel; Comprise base body 1 be positioned at base body 1 top go out vane 2 greatly; The lower end of said base body 1 is provided with main air inlet 3, and the trailing edge inboard that goes out vane 2 greatly is provided with first nozzle 4 that is used to launch air-flow, is provided with in the base body 1 to be communicated with main air inlet 3 and the first water conservancy diversion air channel 5 that goes out vane 2 first nozzles 4 greatly; The vane 2 inboard centers that go out greatly at base body 1 top also are provided with a round table-like air-out body 6; On base body 1, be provided with the supporting post 7 that is connected with air-out body 6; The trailing edge outside of air-out body 6 is provided with second nozzle 8 overlapping with the center of circle of first nozzle 4 and that spout is oppositely arranged, is provided with the second water conservancy diversion air channel 9 that is communicated with the main air inlet 3 and second nozzle 8 in said air-out body 6 and the supporting post 7; The outer wall of said inwall that goes out vane 2 greatly and air-out body 6 forms the toroidal air draft ring 10 of ring-type along the nozzle air-out direction.

Continue as Fig. 1 extremely shown in Figure 3, it is said that to go out vane 2 greatly concordant with the front/rear end of air-out body 6; The second water conservancy diversion air channel 9 forms a runner space 60 in air-out body 6, the front and back side of flow channel space 60 is respectively the air channel inner panel 61 and air channel outside plate 62 of air-out body 6, air channel inner panel 61 and the surface plate of air channel outside plate 62 for being parallel to each other.

Underbalance effect is adopted in this no flabellum fan air channel; Overlapping through the center of circle and spout is oppositely arranged first nozzle 4 and second nozzle 8; And the outer wall that goes out inwall and the air-out body 6 of vane 2 greatly forms the toroidal air draft ring 10 of ring-type along the nozzle air-out direction, and when having high pressure draught in the chamber, air channel, high pressure draught will spray from the spout narrow slit interannular of first nozzle 4 and second nozzle 8; Drive its peripheral air-flow to fore blow in its corresponding space production negative pressure; All air-flows merge produces by boasting forward together, and air quantity is bigger, and efficient is higher; And the blowing distance, blowing is concentrated, and noise is littler.Compare its test result such as following table with the no flabellum fan air channel of monocycle nozzle:

Can find out that from last table except that the air draft ring was different with respective nozzles quantity, other condition was all consistent, can find out that specific power is suitable mutually with double ring nozzle for the monocycle nozzle after comparing test, air quantity becomes greatly, and efficiency also uprises, and noise is also littler.

The above embodiment just is the preferred embodiment of the utility model, is not the practical range that limits the utility model with this, and the equivalence that all shapes according to the utility model, structure and principle are done changes, and all should be covered by in the protection domain of the utility model.

Claims

1. there is not flabellum fan air channel; Comprise base body be positioned at the base body top go out vane greatly; The lower end of said base body is provided with main air inlet; The trailing edge inboard that goes out vane greatly is provided with first nozzle that is used to launch air-flow, is provided with in the base body to be communicated with main air inlet and the first water conservancy diversion air channel that goes out vane first nozzle greatly; It is characterized in that:

The inboard center of vane that goes out greatly at said base body top also is provided with a round table-like air-out body; On base body, be provided with the supporting post that is connected with the air-out body; The trailing edge outside of air-out body is provided with second nozzle overlapping with the center of circle of first nozzle and that spout is oppositely arranged, is provided with the second water conservancy diversion air channel that is communicated with the main air inlet and second nozzle in said air-out body and the supporting post;

The outer wall of said inwall that goes out vane greatly and air-out body forms the toroidal air draft ring of ring-type along the nozzle air-out direction.

2. no flabellum fan according to claim 1 air channel is characterized in that: said to go out vane greatly concordant with the front/rear end of air-out body.

3. no flabellum fan according to claim 1 air channel is characterized in that: the said second water conservancy diversion air channel forms an enclosed space in the air-out body, and the front and back side of enclosed space is respectively the air channel inner panel and the air channel outside plate of air-out body.

4. no flabellum fan according to claim 3 air channel, it is characterized in that: said air channel inner panel and air channel outside plate are the surface plate that is parallel to each other.