CN102251977B

CN102251977B - External tilting centrifugal fan

Info

Publication number: CN102251977B
Application number: CN 201110248660
Authority: CN
Inventors: 钱建刚
Original assignee: Zhangjiagang Shiyibai Electromechanical Equipment Co Ltd
Current assignee: Zhangjiagang smart Mechanical & Electrical Equipment Co., Ltd.
Priority date: 2011-08-24
Filing date: 2011-08-24
Publication date: 2013-01-16
Anticipated expiration: 2031-08-24
Also published as: CN102251977A

Abstract

The invention discloses an external tilting centrifugal fan. The external tilting centrifugal fan comprises an impeller, a motor fixed and coaxially connected with the impeller, a bracket rotationally connected with a rotating shaft of the motor, and a base plate fixedly connected with the bracket; the impeller comprises a bottom plate, an air inlet ring and a plurality of blades fixed between the bottom plate and the air inlet ring; the air inlet ring and the bottom plate coaxially arranged; the base plate is provided with a through hole; and a tubular current collector is arranged between the air inlet ring and the base plate, the pipe orifice edge of one end of the current collector is tightly connected with the edge of the through hole, the pipe orifice at the other end of the current collector is inserted into the air inlet ring, and the diameter of the pipe orifice of the current collector tightly connected with the through hole is greater than that of the pipe orifice of the current collector inserted into the air inlet ring. The current collector is arranged between the air inlet ring and the base plate, so that the airflow is guided into the air inlet ring; and because the current collector is inserted into the air inlet ring, loss of the airflow is reduced, and the air quantity is effectively improved.

Description

External tilting centrifugal fan

Technical field

The present invention relates to a kind of external tilting centrifugal fan.

Background technique

At present the industry of domestic demands blower fan adopts axial-flow blower mostly, and there is following shortcomings in axial-flow blower: complex structure, fault are more, maintenance difficult, efficient is not high, noise is large, static pressure is low, air quantity is little, less stable during parallel operation; Its motor of some centrifugal blower is arranged on impeller inside, has stopped that to a certain extent air-flow flows into intake grill, has reduced the air quantity of centrifugal blower; But motor is arranged on the impeller outside, and intake grill and the back plate connections of impeller do not have airflow guiding device, have caused air-flow to run off in a large number, have further reduced air quantity.

Summary of the invention

The object of the invention provides the larger external tilting centrifugal fan of a kind of air quantity.

In order to achieve the above object, the technical solution adopted in the present invention is: a kind of external tilting centrifugal fan, it comprises impeller, fix and the coaxial motor that is connected with impeller, the support that rotates and be connected with machine shaft, the chassis that is fixedly connected with support, described impeller comprises base plate, with the air supplying ring of the coaxial setting of base plate and be fixed on base plate and air supplying ring between the multi-disc blade, offer through hole on the described chassis, be provided with the slip ring of tubulose between described air supplying ring and the described chassis, the mouth of pipe edge of described slip ring one end closely is connected mutually with the edge of through hole, the mouth of pipe of the other end of described slip ring is inserted in the air supplying ring, and slip ring and the mutually close-connected nozzle diameter of through hole are inserted in nozzle diameter in the air supplying ring greater than slip ring.

Described motor and air supplying ring are positioned at the both sides of base plate.

Described support comprise parallel with the chassis and with machine shaft rotate the dunnage that is connected, be fixedly connected on the strut between dunnage and the chassis.

Described dunnage is square, described strut is four, the vertical part that every strut comprises transverse part, an end is perpendicular with an end of transverse part and be fixedly connected with, each angle of the other end of each described transverse part and dunnage is fixedly connected, and the other end and the chassis of described vertical part are fixedly connected.

Because adopt technique scheme, the present invention has the following advantages: between air supplying ring and chassis, slip ring is set, is conducive to air-flow is imported air supplying ring, and slip ring plug with air supplying ring in, reduced the loss of air-flow, effectively raise air quantity.

Description of drawings

Accompanying drawing 1 is three-dimensional view of the present invention;

Accompanying drawing 2 is plan view of the present invention;

Accompanying drawing 3 is the plan view on chassis of the present invention;

Wherein: 1, impeller; 2, motor; 3, support; 4, chassis; 5, slip ring; 11, base plate; 12, air supplying ring; 13, blade; 31, dunnage; 32, strut; 41, through hole; 321, transverse part; 322, vertical part.

Embodiment

Below in conjunction with accompanying drawing, the preferred specific embodiment of the present invention is described.

As shown in Figure 1, external tilting centrifugal fan comprises impeller 1, fixes with impeller 1 and the coaxial motor that is connected 2, the chassis 4 that rotates the support 3 that is connected, be fixedly connected with support 3 with motor 2 rotating shafts.

Described impeller 1 comprise base plate 11, with the air supplying ring 12 of base plate 11 coaxial settings and be fixed on base plate 11 and air supplying ring 12 between multi-disc blade 13, described motor 2 and air supplying ring 12 are positioned at the both sides of base plate 11, motor 2 is arranged at impeller 1 outside, increase the air output of air supplying ring 12, namely improved the air quantity of blower fan.

Described support 3 comprise parallel with chassis 4 and with motor 2 rotating shafts rotate the foursquare dunnage 31 that is connected, be fixedly connected on the strut 32 between dunnage 31 and the chassis 4.Described strut 32 is four, the vertical part 322 that every strut 31 comprises transverse part 321, an end is perpendicular with an end of transverse part 321 and be fixedly connected with, each angle of the other end of each described transverse part 321 and dunnage 31 is fixedly connected, and the other end of described vertical part 322 and chassis 4 are fixedly connected.

Offer through hole 41 on the described chassis 4, be provided with the slip ring 5 of tubulose between described air supplying ring 12 and the described chassis 4, the mouth of pipe edge of described slip ring 5 one ends closely is connected mutually with the edge of through hole 41, the mouth of pipe of the other end of described slip ring 5 is inserted in the air supplying ring 12, and slip ring 5 and through hole 41 mutually close-connected nozzle diameters are inserted in nozzle diameter in the air supplying ring 12 greater than slip ring 5, between air supplying ring 12 and chassis 4, slip ring 5 is set, be conducive to air-flow is imported air supplying ring 12, and slip ring 5 plug with air supplying ring 12 in, reduce the loss of air-flow, effectively raised air quantity.

Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement; can not limit protection scope of the present invention with this, all equivalence that Spirit Essence is done according to the present invention variations or modification etc. all should be encompassed within protection scope of the present invention.

Claims

1. external tilting centrifugal fan, it comprises impeller (1), fix and the coaxial motor that is connected (2) with impeller (1), the support (3) that rotates and be connected with motor (2) rotating shaft, the chassis (4) that is fixedly connected with support (3), described impeller (1) comprises base plate (11), with the air supplying ring (12) of the coaxial setting of base plate (11) and to be fixed on base plate (11) upper and be positioned at multi-disc blade (13) between base plate (11) and the air supplying ring (12), it is characterized in that: offer through hole (41) on described chassis (4), be provided with the slip ring (5) of tubulose between described air supplying ring (12) and described chassis (4), the mouth of pipe edge of described slip ring (5) one ends closely is connected mutually with the edge of through hole (41), the mouth of pipe of the other end of described slip ring (5) is inserted in the air supplying ring (12), and slip ring (5) is inserted in the interior nozzle diameter of air supplying ring (12) with the mutually close-connected nozzle diameter of through hole (41) greater than slip ring (5), described motor (2) and air supplying ring (12) are positioned at the both sides of base plate (11), motor (2) is arranged at impeller (1) outside, described support (3) comprises the dunnage (31) that parallels with chassis (4) and rotate and be connected with motor (2) rotating shaft, be fixedly connected on the strut (32) between dunnage (31) and chassis (4), described dunnage (31) is square, described strut (32) is four, every strut (32) comprises transverse part (321), one end and the vertical part (322) that be fixedly connected with perpendicular with an end of transverse part (321), each angle of the other end of each described transverse part (321) and dunnage (31) is fixedly connected, and the other end of described vertical part (322) and chassis (4) are fixedly connected.