CN209115371U - Baffle liner for centrifugal fan - Google Patents
Baffle liner for centrifugal fan Download PDFInfo
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- CN209115371U CN209115371U CN201821973026.4U CN201821973026U CN209115371U CN 209115371 U CN209115371 U CN 209115371U CN 201821973026 U CN201821973026 U CN 201821973026U CN 209115371 U CN209115371 U CN 209115371U
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- baffle liner
- support group
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Abstract
The utility model relates to a kind of baffle liners for centrifugal fan.It includes radial support group, circumferential support group and baffle liner ontology；Circumferential support group is made of multiple not isometrical annulus items；Not in the same plane, the diameter of annulus item and annulus item are away from being in inverse ratio at a distance from baffle liner ontology end face for multiple annulus items；Radial support group includes multiple arcs item, multiple arcs item is arranged by center circumference array of the center of circle of the end face of baffle liner ontology, the inner end of arc strip is fixedly connected with central circular item, and the middle section of arc strip is connect with multiple annulus items, and the outer end of arc strip is fixed on the end face edge of baffle liner ontology；Radial support group and circumferential support group form air inlet face.A kind of baffle liner for centrifugal fan of the utility model reduces air and enters the resistance that fan is subject to, to effectively reduce equipment noise under radial support group and the collective effect in air inlet face for being in " convex surface ".
Description
Technical field
The utility model relates to a kind of baffle liners for centrifugal fan.Belong to field of mechanical technique.
Background technique
The characteristics of centrifugal fan is different from aerofoil fan, axis stream is fluid flowing axially through along flabellum.Such as electric fan
With the exhaust fan in family.And it is centrifugal be by fluid after the axial sucking of fan using centrifugal force by fluid from circumferencial direction
It throws out, such as air blower, smoke exhaust ventilator.
The radial support item of the baffle liner of existing centrifugal fan be it is straight, air is rotated into fan, can directly hit
Onto support bar, air is larger by resistance, can generate loud noise；The baffle liner air inlet face of existing centrifugal fan is flat
Face, air approach axis and air inlet face have compared with mitre, and air is larger by resistance, can further generate loud noise.
Summary of the invention
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of baffle liners for centrifugal fan.
Purpose of the utility model is realized as follows:
A kind of baffle liner for centrifugal fan, its main feature is that: it includes radial support group, circumferential support group and baffle liner
Ontology；
Circumferential support group is made of multiple not isometrical annulus items；From central circular item to outer toroid item, each annulus item
Diameter gradually increases, and on the same line, multiple annulus items are not same in the axle center of the centers of circle of multiple annulus items and baffle liner ontology
In one plane, from central circular item to outer toroid item, each annulus item is gradually decreased away from the distance of baffle liner ontology end face, annulus
The diameter of item and annulus item are away from being in inverse ratio at a distance from baffle liner ontology end face；
Radial support group includes multiple arcs item, and multiple arcs item is using the center of circle of the end face of baffle liner ontology as center circumference
Array arrangement, the inner end of arc strip are fixedly connected with central circular item, and the middle section of arc strip is connect with multiple annulus items, arc strip
Outer end be fixed on the end face edge of baffle liner ontology；Radial support group and circumferential support group form air inlet face.
Further, central circular item increases to outer toroid item, the diameter of each annulus item in arithmetic progression.
Further, from central circular item to outer toroid item, distance of each annulus item away from baffle liner ontology end face is in etc.
Difference series are reduced.
Compared with prior art, the utility model has the beneficial effects that
The utility model a kind of baffle liner for centrifugal fan, in radial support group and in the air inlet face on " convex surface "
Under collective effect, reduces air and enter the resistance that fan is subject to, to effectively reduce equipment noise.
Detailed description of the invention
Fig. 1 is a kind of main view of the baffle liner for centrifugal fan of the utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the schematic diagram that air enters fan in Fig. 1.
Fig. 4 is the schematic diagram that air enters fan in Fig. 2.
In figure:
Radial support group 1, arc strip 1.1, circumferential support group 2, central circular item 2.1, outer toroid item 2.2, air inlet face
3, fan 4, baffle liner ontology 5.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and cannot be used as a limitation the protection model of limitation the utility model
It encloses.
Referring to Fig. 1-2, the utility model relates to a kind of baffle liners for centrifugal fan, it includes radial support group 1, ring
To support group 2 and baffle liner ontology 5.
Circumferential support group 2 is made of multiple not isometrical annulus items；From central circular item 2.1 to outer toroid item 2.2, Ge Geyuan
The diameter of ring item gradually increases, the axle center of the centers of circle of multiple annulus items and baffle liner ontology 5 on the same line, multiple annulus items
Not in the same plane, from central circular item 2.1 to outer toroid item 2.2, each distance of the annulus item away from 5 end face of baffle liner ontology
It gradually decreases, the diameter of annulus item and annulus item are away from being in inverse ratio at a distance from 5 end face of baffle liner ontology.
Wherein, from central circular item 2.1 to outer toroid item 2.2, the diameter of each annulus item increases in arithmetic progression.
Wherein, from central circular item 2.1 to outer toroid item 2.2, distance of each annulus item away from 5 end face of baffle liner ontology is in
Arithmetic progression is reduced.
Radial support group 1 includes multiple arcs item 1.1, and multiple arcs item 1.1 is with the center of circle of the end face of baffle liner ontology 5
Center circumferential array arrangement, the inner end of arc strip 1.1 is fixedly connected with central circular item 2.1, the middle section of arc strip 1.1 with it is multiple
The connection of annulus item, the outer end of arc strip 1.1 is fixed on the end face edge of baffle liner ontology 5.
Radial support group 1 and circumferential support group 2 form air inlet face 3.
Working principle:
Referring to Fig. 3, when fan 4 rotates, air rotates into fan (arrow direction in figure) along air inlet face 3, due to
Radial support group 1 is made of multiple arcs item 1.1, therefore closer to 1.1 outer end of arc strip, the resistance that air is subject to is smaller, and
Region close to 1.1 outer end of arc strip is the main air inlet region of 1 fan 4, therefore under the action of radial support group 1, can be had
Effect reduces equipment noise.
Referring to fig. 4, when fan 4 rotates, air enters fan from the rotation convergence of the surrounding in air inlet face 3, due to multiple circles
Ring item not in the same plane, from central circular item 2.1 to outer toroid item 2.2, the diameter and annulus item of each annulus item
Distance away from 5 end face of baffle liner ontology is in inverse ratio, and air inlet face 3 is in " convex surface ", and the presence on this convex surface reduces the air side of entrance
To the angle with air inlet face, therefore the resistance that air is subject to can be effectively reduced, to reduce noise.
In the above-described embodiments, exemplary description only is carried out to the utility model, but those skilled in the art are reading
Various repair can be carried out to the utility model in the case where not departing from the spirit and scope of the utility model after present patent application
Change.
Claims (3)
1. a kind of baffle liner for centrifugal fan, it is characterised in that: it includes radial support group, circumferential support group and baffle liner
Ontology；
Circumferential support group is made of multiple not isometrical annulus items；From central circular item to outer toroid item, the diameter of each annulus item
It gradually increases, on the same line, multiple annulus items are not same flat in the axle center of the centers of circle of multiple annulus items and baffle liner ontology
On face, from central circular item to outer toroid item, each annulus item is gradually decreased away from the distance of baffle liner ontology end face, annulus item
Diameter and annulus item are away from being in inverse ratio at a distance from baffle liner ontology end face；
Radial support group includes multiple arcs item, and multiple arcs item is using the center of circle of the end face of baffle liner ontology as center circumference array
Arrangement, the inner end of arc strip are fixedly connected with central circular item, and the middle section of arc strip is connect with multiple annulus items, outside arc strip
End is fixed on the end face edge of baffle liner ontology；Radial support group and circumferential support group form air inlet face.
2. a kind of baffle liner for centrifugal fan according to claim 1, it is characterised in that: from central circular item to outer
The diameter of annulus item, each annulus item increases in arithmetic progression.
3. a kind of baffle liner for centrifugal fan according to claim 2, it is characterised in that: from central circular item to outer
Annulus item, distance of each annulus item away from baffle liner ontology end face are reduced in arithmetic progression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821973026.4U CN209115371U (en) | 2018-11-28 | 2018-11-28 | Baffle liner for centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821973026.4U CN209115371U (en) | 2018-11-28 | 2018-11-28 | Baffle liner for centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115371U true CN209115371U (en) | 2019-07-16 |
Family
ID=67206760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821973026.4U Active CN209115371U (en) | 2018-11-28 | 2018-11-28 | Baffle liner for centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209115371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628204A (en) * | 2021-01-11 | 2021-04-09 | 泛仕达机电股份有限公司 | High-efficient low-noise multilayer collector and centrifugal fan |
-
2018
- 2018-11-28 CN CN201821973026.4U patent/CN209115371U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628204A (en) * | 2021-01-11 | 2021-04-09 | 泛仕达机电股份有限公司 | High-efficient low-noise multilayer collector and centrifugal fan |
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