CN201003512Y

CN201003512Y - Multiple exit centrifugal fan

Info

Publication number: CN201003512Y
Application number: CNU2006201541890U
Authority: CN
Inventors: 潘建红; 肖德玲; 梁社兵; 邹建煌
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2006-11-28
Filing date: 2006-11-28
Publication date: 2008-01-09
Anticipated expiration: 2016-11-28

Abstract

The utility mode relates to a centrifugal fan with multi-exits which comprises a centrifugal impeller, a wind inlet, a scroll casing and a subordinate scroll casing as well as a wind outlet which are both arranged on the scroll casing. At least two subordinate scrolls as well as wind outlets which beds with axial direction along the scroll casing and rotates as well as crisscross disposes long the circumference of the scroll casing are arranged on the scroll casing, the subordinate scroll casing extends a spiral curve surface as a definite mismatching angle at the direction of the circumference of the scroll casing, the mismatching angle is 0 degree to 360 degree. The utility model utilizes the centrifugal impeller in the scroll casing to deliver the wind rate which enters the wind inlet into the wind outlets of each scroll casings simultaneously so as to improve the distribution of the partial flow fields in the fan, and utilizes the rotating and mismatch method to change the partial wind outlet positions so as to realize one fan blow out wind from a plurality wind channels, to split the air from the circulatory wind rate of the inner machine directly, to make the fan to be compact structure, low cost and no increment of noise at one side while the other side is the adjustment of the structure is beneficial to adjusting the inner flow field of the centrifugal fan and to elevate the efficiency of the fan.

Description

A kind of multiple exit centrifugal blower

[technical field]

The utility model relates to a kind of centrifugal blower, especially a kind of multiple exit centrifugal blower.

[background technique]

In order better to improve indoor air quality, functions such as sterilization, ventilation, humidification that present air conditioner is more and more integrated, and have the air conditioner of miscellaneous function, general all is by increasing special-purpose ventilation fan or complete auxiliary dilution air plant realization, realization is discharged to indoor air outdoor or outdoor fresh air suction is indoor, need to set up corresponding control gear simultaneously, cause complex structure, reliability is restricted, increased cost, be subjected to the restriction of air conditioner interior spatial structure simultaneously, noise is big, air quantity is little.

[model utility content]

The utility model overcomes the deficiencies in the prior art, a kind of axially worm frame layering of one disconnection originally is provided, by adjusting the worm frame design, improve the distribution in former blower fan interior section flow field, increase exhaust outlet, and change part exhaust outlet position by rotary shifted mode, improve fan efficiency, save whole cost, strengthen reliability, multiple exit air-out simultaneously, the multiple exit centrifugal blower of a breeze fan multi-purpose function of realization.

In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals to realize:

A kind of multiple exit centrifugal blower, comprise centrifugal impeller, intake grill, spiral case and be located at sub-spiral case and spiral case exhaust outlet on the spiral case is characterized in that being provided with at least on the spiral case two along the spiral case axial stratification and along spiral case spiral case and the spiral case exhaust outlet that dislocation arranges that rotate in a circumferential direction.

Aforesaid a kind of multiple exit centrifugal blower is characterized in that described sub-spiral case is to launch the helical face with certain error angle each other at the circumferencial direction of spiral case.

Aforesaid a kind of multiple exit centrifugal blower is characterized in that the helical face of described sub-spiral case launches separately, and its expansion mode and radius of curvature are for having nothing in common with each other or all identical.

Aforesaid a kind of multiple exit centrifugal blower is characterized in that described error angle is 0～360 degree.

Aforesaid a kind of multiple exit centrifugal blower is characterized in that between described sub-spiral case cooperating according to the screw type linear sealing between the helical face, and is spiral case with the bottom end face integral sealing of spiral case.

Aforesaid a kind of multiple exit centrifugal blower is characterized in that can being symmetrically arranged with on the described spiral case along the spiral case axial stratification and along spiral case circumferencial direction interlace the each other main spiral case and the auxilliary spiral cases of 180 degree.

Aforesaid a kind of multiple exit centrifugal blower is characterized in that described sub-spiral case is the axial stratification combination, has independently spiral molded lines; Each sub-spiral case comprises an independently spiral case exhaust outlet.

Compared with prior art, the utility model has the advantages that:

Centrifugal blower of the present utility model adopts a plurality of exhaust outlets, by adjusting the worm frame design, improve the distribution in blower fan interior section flow field, and change part exhaust outlet position by rotary shifted mode, realize that a blower fan from the air-out of a plurality of air channels, directly shunts gas from interior machine air circulation, a part of flow is used for the normal heat exchange of air conditioner, other partial discharges then are used to realize miscellaneous function, make this blower fan on the one hand compact structure, cost is low and noise does not increase; On the other hand, the adjustment of structure helps to regulate the centrifugal blower flow field, improves fan efficiency.

[description of drawings]

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the sub-worm frame schematic representation of individual layer;

Fig. 3 is the user mode figure of specific embodiment of the utility model;

Fig. 4 is the side view of Fig. 3.

[embodiment]

The utility model is described in further detail below in conjunction with the drawings and specific embodiments:

A kind of multiple exit centrifugal blower, as shown in Figures 1 to 4, comprise centrifugal impeller 1, intake grill 2, spiral case 3 and sub-spiral case 4 and the spiral case exhaust outlet 5 be located on the spiral case 3, at least be provided with two on the described spiral case 3 along spiral case 3 axial stratifications and along spiral case 3 sub-spiral case 4 and the spiral case exhaust outlet 5 that dislocation arranges that rotate in a circumferential direction, sub-spiral case 4 is that the circumferencial direction at spiral case 3 launches helical face 6 with certain error angle each other, and described error angle is 0～360 degree; By the centrifugal impeller in the spiral case 1, the air quantity that intake grill enters is sent into each spiral case exhaust outlet 5 simultaneously, reach a blower fan and realize multidirectional air-supply.

Can be symmetrically arranged with on the described spiral case 3 along spiral case 3 axial stratifications and along the spiral case circumferencial direction interlace each other 180 the degree main spiral case 30 and auxilliary spiral cases 31.

The helical face 6 of described sub-spiral case 4 can launch separately, has independently spiral molded lines 7, and each sub-spiral case 4 comprises an independently spiral case exhaust outlet 5, and its expansion mode and radius of curvature are can be according to the design needs all identical or have nothing in common with each other; Simultaneously 4 spiral molded lines 7 according to 6 in helical face of sub-spiral case are sealed and matched, and are spiral case 3 with bottom end face 8 integral sealings of spiral case.

The utility model is in specific implementation process, in Fig. 3 and Fig. 4, main project organization by adjustment volute of blower 3 improves the distribution in blower fan interior section flow field, increases the spiral case exhaust outlet, change traditional centrifugal blower volute list and go into singly to go out structure, be adjusted into and axially go up the lower leaf composite structure, be about to original axially integral type worm frame layering and disconnect, and change the exit position by rotary shifted mode, directly from interior machine air circulation, shunt gas, realize the non-unidirectional air-supply of centrifugal blower; By the centrifugal impeller 1 of blower fan, a part of flow is used for the normal heat exchange of air conditioner, another part flow is used for other additional functions, realizes the function of a blower fan from the air-out of a plurality of air channels, make this blower fan on the one hand compact structure, cost is low and noise does not increase; On the other hand, the adjustment of structure helps to regulate the centrifugal blower flow field, improves fan efficiency.

Claims

1, a kind of multiple exit centrifugal blower, comprise centrifugal impeller (1), intake grill (2), spiral case (3) and be located at sub-spiral case (4) and spiral case exhaust outlet (5) on the spiral case (3) is characterized in that being provided with at least on the spiral case (3) two along spiral case (3) axial stratification and along spiral case (3) sub-spiral case (4) and the spiral case exhaust outlet (5) that dislocation arranges that rotate in a circumferential direction.

2, a kind of multiple exit centrifugal blower according to claim 1 is characterized in that described sub-spiral case (4) is to launch helical face (6) with certain error angle each other at the circumferencial direction of spiral case (3).

3, a kind of multiple exit centrifugal blower according to claim 2 is characterized in that the helical face (6) of described sub-spiral case (4) launches separately, and its expansion mode and radius of curvature are for having nothing in common with each other or all identical.

4, a kind of multiple exit centrifugal blower according to claim 2 is characterized in that described error angle is 0～360 degree.

5, a kind of multiple exit centrifugal blower according to claim 3 is characterized in that being sealed and matched according to the spiral molded lines (7) between helical face (6) between described sub-spiral case (4), and is spiral case (3) with bottom end face (8) integral sealing of spiral case.

6, a kind of multiple exit centrifugal blower according to claim 3 is characterized in that can being symmetrically arranged with on the described spiral case (3) along spiral case (3) axial stratification and along spiral case (3) circumferencial direction interlace the each other main spiral case (30) and the auxilliary spiral cases (31) of 180 degree.

7,, it is characterized in that described sub-spiral case (4) for the axial stratification combination, has independently spiral molded lines (7) according to claim 5 or 6 described a kind of multiple exit centrifugal blowers; Each sub-spiral case (4) comprises an independently spiral case exhaust outlet (5).