CN203548333U

CN203548333U - Drainage structure of volute of fan

Info

Publication number: CN203548333U
Application number: CN201320582208.XU
Authority: CN
Inventors: 王雄程; 雷威
Original assignee: Zhongshan Broad Ocean Motor Co Ltd
Current assignee: Zhongshan Broad Ocean Motor Co Ltd
Priority date: 2013-09-18
Filing date: 2013-09-18
Publication date: 2014-04-16
Anticipated expiration: 2023-09-18
Also published as: WO2015039415A1

Abstract

The utility model discloses a drainage structure of a volute of a fan. The drainage structure comprises a volute body and a bottom cover. An internal cavity for mounting a wind wheel is arranged inside the volute body, a wind outlet is formed in the volute body and is communicated with the internal cavity, the bottom cover is mounted on the top of the volute body and shields an opening in the top of the internal cavity, at least one drainage hole is formed in the bottom wall of the internal cavity, and the tops of the drainage holes are wide while the bottoms of the drainage holes are narrow. The drainage structure has the advantages of simplicity, good drainage performance and high reliability.

Description

A kind of volute of blower discharge structure

Technical field:

The utility model relates to a kind of volute of blower discharge structure.

Background technique:

At present, blower volute of blower, especially be applied in the volute of blower in efficient heating and cooling air conditioner system, efficient heating and cooling air conditioner system be often operated in efficiency be 90% and above state in, efficiency is higher, the corresponding increase of the amount of liquid carrying in Exhaust Gas or moisture, the intake grill of volute of blower sucks the internal cavities the inside that gas collects in volute of blower, because of internal cavities inside temperature lower, the gas sucking will be met cold formation condensed water in internal cavities, the condensed water of building up may cause the reduction of air performance in blower, even may cause the combustion system in efficient heating and cooling air conditioner system to be extinguished.

In order to process the condensed water of accumulation, people often arrange waste pipe on volute of blower, drain the condensed water accumulating in volute of blower, but the wind wheel of volute of blower the inside rotates the pressure influence that the air-flow of generation forms the condensed water of building up, make condensing water vapor be difficult to collect in weep hole place, drainage effect is undesirable, causes the reduction of air performance in blower, service time is long, even may cause the combustion system in efficient heating and cooling air conditioner system to be extinguished.

Summary of the invention:

The purpose of this utility model is to provide a kind of volute of blower discharge structure, and this is simple in structure, drainage performance good, reliability is high.

The purpose of this utility model is achieved by following technical proposals.

A kind of volute of blower discharge structure, comprise volute body and bottom, volute body the inside is provided with for the internal cavities of wind wheel is installed, on volute body, setting out air port is communicated with internal cavities, bottom is arranged on the top of volute body and shelters from the opening at internal cavities top, on the diapire of internal cavities, offer at least one weep hole, the top of weep hole is wider, and bottom is narrower.

Weep hole described above is counterbore, comprises the groove of top sinking and the pipeline of bottom.

Weep hole described above is up big and down small taper hole.

Pipeline described above comprises inlet, drain opening and the diversion section between inlet and drain opening, and inlet, drain opening and diversion section three's shape of cross section is identical with size.

The tubular body of volute body outside is extended in the peripheral formation one of diversion section described above.

The outer installment stiffening rib of tubular body described above.

Groove described above is arranged on the edge of internal cavities diapire, and the shape of cross section of pipeline is U-shaped.

On volute body described above, be also provided with some installation feet.

Volute body described above is integrated injection molding.

The utility model compared with prior art, there is following effect: 1) volute body the inside is provided with for the internal cavities of wind wheel is installed, on volute body, setting out air port is communicated with internal cavities, bottom is arranged on the top of volute body and shelters from the opening at internal cavities top, on the diapire of internal cavities, offer at least one weep hole, the top of weep hole is wider, bottom is narrower, the condensed water forming at volute body internal cavities flow into the inside, weep hole region by self gravitation, air-flow that wind wheel the produces pressure influence to condensed water can be reduced in the wider place, top of weep hole, thereby assurance condensed water is discharged by narrower place, weep hole bottom, this is simple in structure, drainage effect is good, reliability and working efficiency are high, 2) the outer installment stiffening rib of tubular body, this is simple in structure, solid firmly, 3) groove is arranged on the edge of internal cavities diapire, and condensed water just can flow to the inside, region of weep hole by self gravitation, and the shape of cross section of pipeline is U-shaped, is beneficial to draining, 4) on volute body, be also provided with some installation feet, easy for installation, 5) volute body is integrated injection molding, simple in structure, be convenient to batch production.

Accompanying drawing explanation:

Fig. 1 is the stereogram of the utility model volute of blower.

Fig. 2 is a stereogram of the utility model volute body.

Fig. 3 is another stereogram of the utility model volute body.

Fig. 4 is the A-A partial enlarged drawing of Fig. 3.

Fig. 5 is the plan view of the utility model volute body.

Fig. 6 is the B-B sectional view of Fig. 5.

Fig. 7 is the C-C partial enlarged drawing of Fig. 6.

Fig. 8 is the structural representation of weep hole in embodiment two.

Embodiment:

Below by specific embodiment, also by reference to the accompanying drawings the utility model is described in further detail.

Embodiment one: as shown in Figures 1 to 7, the utility model is a kind of volute of blower discharge structure, comprise volute body 1 and bottom 2, volute body 1 the inside is provided with for the internal cavities 11 of wind wheel is installed, on volute body 1, set out air port 12 and be communicated with internal cavities 11, bottom 2 is arranged on the top of volute body 1 and shelters from the opening at internal cavities 11 tops, offers at least one weep hole 13 on the diapire of internal cavities 11, the top of weep hole 13 is wider, and bottom is narrower.

Weep hole 13 is counterbores, comprises the groove 131 of top sinking and the pipeline 132 of bottom.

Pipeline 132 comprises inlet 1321, drain opening 1322 and the diversion section 1323 between inlet 1321 and drain opening 1322, and inlet 1321, drain opening 1322 and diversion section 1323 threes' shape of cross section is identical with size.

The tubular body 14 of volute body outside is extended in the peripheral formation one of diversion section 1323.

The outer installment stiffening rib 15 of tubular body 14.

Groove 131 is arranged on the edge of internal cavities 11 diapires, and the shape of cross section of pipeline 132 is U-shapeds.

On volute body 1, be also provided with some installation feet 16.

Volute body 1 is integrated injection molding.

Principle of the present utility model is: on the diapire of the internal cavities 11 of volute body 1, offer at least one weep hole 13, weep hole 13 is counterbores, comprises the groove 131 of top sinking and the pipeline 132 of bottom, and this is simple in structure, drainage performance good, reliability is high.

Embodiment two: as shown in Fig. 1, Fig. 3 and Fig. 8, the utility model is a kind of volute of blower discharge structure, comprise volute body 1 and bottom 2, volute body 1 the inside is provided with for the internal cavities 11 of wind wheel is installed, on volute body 1, set out air port 12 and be communicated with internal cavities 11, bottom 2 is arranged on the top of volute body 1 and shelters from the opening at internal cavities 11 tops, offers at least one weep hole 13 on the diapire of internal cavities 11, the top of weep hole 13 is wider, and bottom is narrower.

Weep hole 13 is up big and down small taper holes.

On volute body 1, be also provided with some installation feet 16.

Volute body 1 is integrated injection molding.

Principle of the present utility model is: on the diapire of the internal cavities 11 of volute body 1, offer at least one weep hole 13, weep hole 13 is up big and down small taper holes, and this is simple in structure, drainage performance good, reliability is high.

Claims

1. a volute of blower discharge structure, comprise volute body (1) and bottom (2), volute body (1) the inside is provided with the internal cavities (11) for wind wheel is installed, on volute body (1), setting out air port (12) is communicated with internal cavities (11), bottom (2) is arranged on the top of volute body (1) and shelters from the opening at internal cavities (11) top, it is characterized in that: on the diapire of internal cavities (11), offer at least one weep hole (13), the top of weep hole (13) is wider, and bottom is narrower.

2. a kind of volute of blower discharge structure according to claim 1, is characterized in that: weep hole (13) is counterbore, comprises the groove (131) of top sinking and the pipeline (132) of bottom.

3. a kind of volute of blower discharge structure according to claim 1, is characterized in that: weep hole (13) is up big and down small taper hole.

4. a kind of volute of blower discharge structure according to claim 2, it is characterized in that: described pipeline (132) comprise inlet (1321), drain opening (1322) and be positioned at inlet (1321) and drain opening (1322) between diversion section (1323), inlet (1321), drain opening (1322) and diversion section (1323) three's shape of cross section with size identical.

5. a kind of volute of blower discharge structure according to claim 4, is characterized in that: the tubular body (14) of volute body outside is extended in the peripheral formation one of described diversion section (1323).

6. a kind of volute of blower discharge structure according to claim 5, is characterized in that: the outer installment stiffening rib (15) of tubular body (14).

7. a kind of volute of blower discharge structure according to claim 2, is characterized in that: groove (131) is arranged on the edge of internal cavities (11) diapire, and the shape of cross section of pipeline (132) is U-shaped.

8. a kind of volute of blower discharge structure according to claim 1, is characterized in that: on volute body (1), be also provided with some installation feet (16).

9. a kind of volute of blower discharge structure according to claim 1, is characterized in that: volute body (1) is integrated injection molding.