CN204267336U - A kind of multiple wing type centrifugal blower fan - Google Patents
A kind of multiple wing type centrifugal blower fan Download PDFInfo
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- CN204267336U CN204267336U CN201420745706.6U CN201420745706U CN204267336U CN 204267336 U CN204267336 U CN 204267336U CN 201420745706 U CN201420745706 U CN 201420745706U CN 204267336 U CN204267336 U CN 204267336U
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- guiding structure
- wind guiding
- blower fan
- centrifugal blower
- type centrifugal
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Abstract
The utility model embodiment discloses a kind of multiple wing type centrifugal blower fan, effectively can raise the efficiency, reduce noise.A kind of multiple wing type centrifugal blower fan in the utility model, specifically comprises: spiral case, wind wheel, motor, at least one electric machine support and wind guiding structure; Motor is connected with wind wheel, is accommodated in spiral case; Motor shaft is fixed on spiral case by electric machine support; Spiral case through forms intake grill, and wind guiding structure is arranged in intake grill; Wind guiding structure center is provided with axis hole, and motor shaft inserts axis hole.Owing to having installed wind guiding structure in intake grill, thus reduce the air intake space of air inlet, the flow process of air-flow in spiral case is shortened, makes gas in air flow collection, current density change greatly, and then improves efficiency, reduces noise.
Description
Technical field
The utility model relates to the ventilation equipment of mechanical field, relates to a kind of multiple wing type centrifugal blower fan further.
Background technique
Multiple wing type centrifugal blower fan is widely used in the ventilation of factory, mine, tunnel, cooling tower, vehicle, boats and ships and building.
Existing multiple wing type centrifugal blower fan is made up of spiral case, wind wheel, motor and electric machine support, and wind wheel is fixed on motor, and motor is fixed on spiral case wall by electric machine support.
Because the intake grill of existing blower fan is comparatively large, just easily produces eddy current at the air-flow of wind wheel intermediate portion, cause wind loss, decrease in efficiency; In addition, due to eddy current, airflow strikes wind wheel and spiral case thus noise increase.
Model utility content
The utility model embodiment provides a kind of multiple wing type centrifugal blower fan, effectively can raise the efficiency, reduce noise.
A kind of multiple wing type centrifugal blower fan in the utility model, specifically comprises:
Spiral case, wind wheel, motor, at least one electric machine support and wind guiding structure;
Motor is connected with wind wheel, is accommodated in spiral case;
Motor shaft is fixed on spiral case by electric machine support;
Spiral case through forms intake grill, and wind guiding structure is arranged in intake grill;
Wind guiding structure center is provided with axis hole, and motor shaft inserts axis hole.
Optionally,
Wind guiding structure is round column structure.
Optionally,
Round column structure has chamfer design, and chamfer radius scope is 10-65mm.
Optionally,
Wind guiding structure is conical structure.
Optionally,
Wind guiding structure is prism structure.
Optionally,
Wind guiding structure is pyramidal structure.
Optionally,
Wind guiding structure is hollow-core construction.
Optionally,
Axis hole longitudinal extension forms through hole.
Optionally,
Wind guiding structure bottom surface circumradius is the 60%-75% of intake grill radius.
Optionally,
Wind guiding structure is 2, is arranged on spiral case both sides respectively.
Optionally,
Wind guiding structure height is 55%-65% of wind wheel height.
Optionally,
Wind guiding structure is arranged on electric machine support.
Optionally,
Wind guiding structure is also provided with some spliced eyes or inserting groove.
As can be seen from the above technical solutions, the utility model embodiment has the following advantages:
Owing to having installed wind guiding structure in intake grill, thus reduce the air intake space of air inlet, the flow process of air-flow in spiral case is shortened, to make in air flow collection and loss is few, current density becomes large, and then improves efficiency, reduces noise.
Accompanying drawing explanation
Fig. 1 is embodiment's sectional drawing of a kind of multiple wing type centrifugal blower fan in the utility model;
Fig. 2 is wind guiding structure and electric machine support assembling assumption diagram in an embodiment of a kind of multiple wing type centrifugal blower fan in the utility model;
Fig. 3 is another embodiment's sectional drawing of a kind of multiple wing type centrifugal blower fan in the utility model.
Embodiment
The utility model embodiment provides a kind of multiple wing type centrifugal blower fan, effectively can raise the efficiency, reduce noise.
Refer to Fig. 1, a kind of multiple wing type centrifugal blower fan embodiment in the utility model, specifically comprises:
Spiral case 1, wind wheel 2, motor 3, at least one electric machine support 4 and wind guiding structure 5;
Motor 3 is connected with wind wheel 2, is accommodated in spiral case 1; Motor shaft 31 is fixed on spiral case 1 by electric machine support 4; Spiral case 1 through forms intake grill, and wind guiding structure 5 is arranged in intake grill; Wind guiding structure 5 center is provided with axis hole 51, and motor shaft 31 inserts axis hole 51.·
It should be noted that, in actual applications, motor comprise single shaft with twin shaft, therefore corresponding electric machine support also comprises one or two.Electric machine support can be Y type, and motor shaft is fixed on electric machine support center, and three link arms of electric machine support are connected with spiral case.
In the present embodiment, owing to having installed wind guiding structure in intake grill, thus reduce the air intake space of air inlet, the flow process of air-flow in spiral case is shortened, makes air-flow concentrated loss few, current density change greatly, and then improves efficiency, reduces noise.
Wind guiding structure in the present embodiment can comprise the structures such as round column structure, conical structure, prism structure, pyramid, and wherein round column structure has chamfer design, and chamfer radius scope is 10-65mm.
Wind guiding structure concrete structure is in this no limit, is that example is described this embodiment below with round column structure.
Refer to Fig. 2, in a particular application, wind guiding structure 5 and electric machine support 4 can one plasticity, or wind guiding structure 5 offered some spliced eyes or inserting groove (not shown), and the link arm of electric machine support 4 can be installed through spliced eye or inserting groove and wind guiding structure 5.The axis hole 51 of wind guiding structure 5 can form through hole by longitudinal extension, make motor shaft 31 through by after be fixed on electric machine support 4.
In order to reach better noise reduction, wind guiding structure bottom surface circumradius can be the 60%-75% of intake grill radius, and wind guiding structure height can be 55%-65% of wind wheel height.
It should be noted that, wind guiding structure can be hollow-core construction, after air-flow enters spiral case, can assemble in the hollow position of wind guiding structure, cushion the head-on collision of the air-flow entered from both sides, the opening of wind guiding structure can expand outwardly extension, is convenient to the air-flow guiding wind wheel from air inlet, thus reduce air quantity loss, and reduce noise.
Refer to Fig. 3, wind guiding structure 5 can be 2, is arranged on spiral case 1 both sides respectively.The number of wind guiding structure can be determined according to actual conditions, in this no limit.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the device of foregoing description, with reference to the corresponding process in preceding method embodiment, can not repeat them here.In several embodiments that the application provides, should be understood that, disclosed device can realize by another way.
Above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment's technological scheme of the utility model.
Claims (10)
1. a multiple wing type centrifugal blower fan, is characterized in that, comprising:
Spiral case, wind wheel, motor, at least one electric machine support and wind guiding structure;
Described motor is connected with described wind wheel, is accommodated in described spiral case;
Motor shaft is fixed on described spiral case by described electric machine support;
Described spiral case through forms intake grill, and described wind guiding structure is arranged in described intake grill;
Described wind guiding structure center is provided with axis hole, and described motor shaft inserts described axis hole.
2. multiple wing type centrifugal blower fan according to claim 1, is characterized in that, described wind guiding structure is round column structure or conical structure or prism structure or pyramidal structure.
3. multiple wing type centrifugal blower fan according to claim 2, is characterized in that,
Described round column structure has chamfer design, and described chamfer radius scope is 10-65mm.
4. multiple wing type centrifugal blower fan according to claim 2, is characterized in that,
Described wind guiding structure bottom surface circumradius is the 60%-75% of described intake grill radius.
5. multiple wing type centrifugal blower fan according to any one of claim 1 to 4, is characterized in that,
Described wind guiding structure is 2, is arranged on described spiral case both sides respectively.
6. multiple wing type centrifugal blower fan according to any one of claim 1 to 4, is characterized in that,
Described wind guiding structure is hollow-core construction.
7. multiple wing type centrifugal blower fan according to any one of claim 1 to 4, is characterized in that,
Described axis hole longitudinal extension forms through hole.
8. multiple wing type centrifugal blower fan according to any one of claim 1 to 4, is characterized in that,
Described wind guiding structure height is 55%-65% of described wind wheel height.
9. multiple wing type centrifugal blower fan according to any one of claim 1 to 4, is characterized in that,
Described wind guiding structure is arranged on described electric machine support.
10. multiple wing type centrifugal blower fan according to claim 9, is characterized in that,
Described wind guiding structure is also provided with some spliced eyes or inserting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420745706.6U CN204267336U (en) | 2014-12-01 | 2014-12-01 | A kind of multiple wing type centrifugal blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420745706.6U CN204267336U (en) | 2014-12-01 | 2014-12-01 | A kind of multiple wing type centrifugal blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267336U true CN204267336U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420745706.6U Active CN204267336U (en) | 2014-12-01 | 2014-12-01 | A kind of multiple wing type centrifugal blower fan |
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| CN (1) | CN204267336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339259A (en) * | 2017-04-11 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of multi-wing centrifugal fan |
-
2014
- 2014-12-01 CN CN201420745706.6U patent/CN204267336U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339259A (en) * | 2017-04-11 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of multi-wing centrifugal fan |
| CN107339259B (en) * | 2017-04-11 | 2023-09-15 | 宁波方太厨具有限公司 | Multi-wing centrifugal fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 528300 9 Daliang, five Shalong Shuncheng Road, Daliang, Shunde, Foshan, Guangdong Patentee after: Fanshida electromechanical Limited by Share Ltd Address before: 528300 two, Daliang Shuncheng South Road, five Daliang street, Shunde District, Foshan, Guangdong two Patentee before: FANS-TECH ELECTRIC CO., LTD. |
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| CP03 | Change of name, title or address |