CN207437404U - A kind of centrifugal fan structure - Google Patents
A kind of centrifugal fan structure Download PDFInfo
- Publication number
- CN207437404U CN207437404U CN201721439920.9U CN201721439920U CN207437404U CN 207437404 U CN207437404 U CN 207437404U CN 201721439920 U CN201721439920 U CN 201721439920U CN 207437404 U CN207437404 U CN 207437404U
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- centrifugal fan
- pedestal
- noise reduction
- fan structure
- spiral case
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Abstract
The utility model discloses a kind of centrifugal fan structures, including pedestal, pedestal is equipped with pedestal and motor, the shaft of motor is pierced by pedestal to the left from right side, it further includes and removable is successively from right to left connected with back shroud, the spiral case equipped with impeller, front shroud, wind collecting unit, impeller is connected with the shaft, and the volute structure is symmetrical.In this way, by assembling and disassembling spiral case, spiral case is allowed after rotating 180 air port direction can be allowed to be changed.It is easy to operate, it will not allow pedestal occupancy that should be used for the space of work.The utility model is used for air blower.
Description
Technical field
The utility model is related to air blower field, especially a kind of centrifugal fan structure with spiral case.
Background technology
Existing air blower, especially with the air blower of spiral case, the outlet of spiral case be either forward otherwise be backward,
User is so resulted in need to make air blower into the whole mobile change that could realize air outlet direction.But it can so expend
Many manpower and materials, and since spiral case is biasing, so if once carrying out 180 degree steering, then pedestal will account for
With substantial amounts of space.
Utility model content
The technical problems to be solved in the utility model is：A kind of centrifugal blower knot of flexibly changing air-out direction is provided
Structure.
The solution that the utility model solves its technical problem is：
A kind of centrifugal fan structure, including pedestal, pedestal is equipped with pedestal and motor, the shaft of motor from right side to
A left side is pierced by pedestal, further includes and removable is successively from right to left connected with back shroud, the spiral case equipped with impeller, front shroud, wind collecting unit, leaf
Wheel is connected with the shaft, and the volute structure is symmetrical.
As being further improved for said program, the left and right sidewall of back shroud is equipped with the ventilation opening communicated, on back shroud
Equipped with the connection ring stretched out to the left, the connection ring is stretched into ventilation opening.
As being further improved for said program, impeller includes lobus sinister plate of the middle part with through hole, lobus dexter plate, is located at lobus sinister plate
With the blade between lobus dexter plate.
As being further improved for said program, it is known as inside close to shaft, and is known as outside away from shaft, lobus sinister plate
The marginal portion of through hole is prominent to the left to form noise reduction unit, and wind collecting unit has cricoid outer portion, and the inner edge of outer portion is stretched out to the right
So as to form the arc-shaped drop-over portion of revolution section, the medial surface of noise reduction unit is abutted with the lateral surface in drop-over portion.
As being further improved for said program, front shroud includes cricoid foreboard, the lantern ring being located on the left of foreboard, foreboard bag
The preceding connection ring abutted with spiral case left side wall is included, the inner edge of preceding connection ring is stretched out to the left and slope becomes larger ground so from right to left
Slope tapers into and turns back to form deformation return portion inside again afterwards, deforms the end of return portion and the lateral surface in drop-over portion
It abuts, the right end of lantern ring is connected with deforming the left-hand face of return portion, is deformed between the end of return portion and the end of noise reduction unit
Equipped with noise reduction gap, deform and silencing cavity is equipped between the end of return portion and noise reduction unit, the stage casing of silencing cavity outside greatly
It is small with inside.
As being further improved for said program, between the 4~6mm of noise reduction gap.
As being further improved for said program, drop-over portion is located in lantern ring, and the left side edge of lantern ring extends outward to form
Ring is bonded, outer portion is abutted with being bonded ring.
The beneficial effects of the utility model are：A kind of centrifugal fan structure, including pedestal, pedestal is equipped with pedestal and electronic
Machine, the shaft of motor are pierced by pedestal to the left from right side, further include and removable are successively from right to left connected with back shroud, equipped with leaf
Spiral case, front shroud, the wind collecting unit of wheel, impeller are connected with the shaft, and the volute structure is symmetrical.In this way, by assembling and disassembling snail
Shell allows spiral case after rotating 180 air port direction can be allowed to be changed.It is easy to operate, it will not allow pedestal occupancy that should be used for work
The space of work.The utility model is used for air blower.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is the part of the embodiment of the utility model rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His designing scheme and attached drawing.
Fig. 1 is the assembling schematic diagram of the utility model embodiment；
Fig. 2 is the main view partial schematic sectional view of the utility model embodiment；
Fig. 3 is close-up schematic view of the front shroud with wind collecting unit connecting portion of Fig. 2；
Fig. 4 is the close-up schematic view at the back shroud position of Fig. 2；
Fig. 5 is the front cover structure schematic diagram of the utility model embodiment.
Specific embodiment
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is the part of the embodiment rather than whole embodiments of the utility model, the embodiment based on the utility model, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection/connection relations being previously mentioned in text, not singly refer to component and directly connect, and refer to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the utility model is special
Sign, can be with combination of interactions on the premise of not conflicting conflict.
Referring to figs. 1 to Fig. 5, this is the embodiment of the utility model, specifically：
A kind of centrifugal fan structure, including pedestal 1, pedestal 1 is equipped with pedestal and motor 2, and the shaft of motor 2 is from the right side
A lateral left side is pierced by pedestal, further include from right to left successively it is removable be connected with back shroud 3, the spiral case 4 equipped with impeller 41, front shroud,
Wind collecting unit 6, impeller 41 are connected with the shaft, and 4 structure of spiral case is symmetrical.In this way, by assembling and disassembling spiral case, spiral case is allowed to revolve
After turning 180 air port direction can be allowed to be changed.It is easy to operate, it will not allow pedestal occupancy that should be used for the space of work.
The left and right sidewall of back shroud 3 is equipped with the ventilation opening communicated, and back shroud 3 is equipped with the connection ring 31 stretched out to the left,
The connection ring 31 is stretched into ventilation opening, is so conducive to seal and spiral case is fixed.
For the ease of connecting and producing, impeller 41 includes the lobus sinister plate 411 of lobus dexter plate 412, middle part with through hole, is located at lobus sinister
Blade 413 between plate 411 and lobus dexter plate 412.
It is known as inside close to shaft, and is known as outside away from shaft, lobus sinister plate 411, the marginal portion of through hole is dashed forward to the left
Go out to be formed noise reduction unit 414, wind collecting unit 6 has cricoid outer portion, and the inner edge of outer portion is stretched out to form revolution section to the right
Arc-shaped drop-over portion 61, the medial surface of noise reduction unit 414 are abutted with the lateral surface in drop-over portion 61.So wind energy allows air-flow gently
Change direction, so as to fulfill the effect of noise reduction boosting.
Front shroud includes cricoid foreboard, the lantern ring 52 being located on the left of foreboard, and foreboard is included before being abutted with 4 left side wall of spiral case
Connection ring 51, the inner edge of preceding connection ring 51 is stretched out to the left and slope becomes larger ground from right to left and then slope gradually becomes inside again
Small and turn back to be formed deformation return portion 53, the end of deformation return portion 53 is abutted with the lateral surface in drop-over portion 61, lantern ring 52
Right end with deform return portion 53 left-hand face be connected, deformation return portion 53 end and noise reduction unit 414 end between set
There is noise reduction gap, deform and silencing cavity is equipped between the end of return portion 53 and noise reduction unit 414, the stage casing of the silencing cavity is big and outer
Side and inside are small.Noise can enter from noise reduction gap in silencing cavity, and noise reflects to consume noise in silencing cavity repeatedly
Energy, the final function of realizing noise reduction.The cavity geometry of the silencing cavity of the present embodiment can consume high frequency well, low frequency is made an uproar
Sound.
In order to which noise can be imported well in silencing cavity, between the 4~6mm of noise reduction gap.
It is connected for the ease of front shroud with wind collecting unit, drop-over portion 61 is located in lantern ring 52, and the left side edge of lantern ring 52 is to extension
It stretches to form fitting ring, outer portion is abutted with being bonded ring.
The better embodiment of the utility model is illustrated above, but the utility model be not limited to it is described
Embodiment, those skilled in the art can also make a variety of equivalent changes on the premise of without prejudice to the utility model spirit
Type or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (7)
1. a kind of centrifugal fan structure, including pedestal (1), pedestal (1) is equipped with pedestal and motor (2), and motor (2) turns
Axis is pierced by pedestal to the left from right side, it is characterised in that：It further includes and removable be successively from right to left connected with back shroud (3), be equipped with
Spiral case (4), front shroud, the wind collecting unit (6) of impeller (41), impeller (41) are connected with the shaft, described spiral case (4) structure or so pair
Claim.
2. a kind of centrifugal fan structure according to claim 1, it is characterised in that：The left and right sidewall of back shroud (3) is all provided with
There is the ventilation opening communicated, back shroud (3) is equipped with the connection ring (31) stretched out to the left, and the connection ring (31) stretches into ventilation opening
It is interior.
3. a kind of centrifugal fan structure according to claim 1, it is characterised in that：Impeller (41) include lobus dexter plate (412),
Lobus sinister plate (411) of the middle part with through hole, the blade (413) being located between lobus sinister plate (411) and lobus dexter plate (412).
4. a kind of centrifugal fan structure according to claim 3, it is characterised in that：It is known as inside close to shaft, and it is separate
Shaft is known as outside, and protrusion forms noise reduction unit (414) to the left for the marginal portion of the through hole of lobus sinister plate (411), and wind collecting unit (6) has
Cricoid outer portion, the inner edge of outer portion are stretched out to form the arc-shaped drop-over portion (61) of revolution section, noise reduction unit to the right
(414) medial surface is abutted with the lateral surface of drop-over portion (61).
5. a kind of centrifugal fan structure according to claim 4, it is characterised in that：Front shroud includes cricoid foreboard, is located at
Lantern ring (52) on the left of foreboard, foreboard include the preceding connection ring (51) that is abutted with spiral case (4) left side wall, preceding connection ring (51) it is interior
Edge stretches out to the left and slope becomes larger ground from right to left and then slope tapers into and turn back to form deformation folding inside again
Portion (53) is returned, the end of deformation return portion (53) is abutted with the lateral surface of drop-over portion (61), and right end and the deformation of lantern ring (52) are rolled over
The left-hand face connection in portion (53) is returned, is equipped between the end of deformation return portion (53) and the end of noise reduction unit (414) between noise reduction
Gap, is equipped with silencing cavity between end and the noise reduction unit (414) of deformation return portion (53), the stage casing of the silencing cavity is big and outside with
Inside is small.
6. a kind of centrifugal fan structure according to claim 5, it is characterised in that：Between the 4~6mm of noise reduction gap.
7. a kind of centrifugal fan structure according to claim 5, it is characterised in that：Drop-over portion (61) is located at lantern ring (52)
Interior, the left side edge of lantern ring (52) extends outward to form fitting ring, and outer portion is abutted with being bonded ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721439920.9U CN207437404U (en) | 2017-10-30 | 2017-10-30 | A kind of centrifugal fan structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721439920.9U CN207437404U (en) | 2017-10-30 | 2017-10-30 | A kind of centrifugal fan structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437404U true CN207437404U (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721439920.9U Active CN207437404U (en) | 2017-10-30 | 2017-10-30 | A kind of centrifugal fan structure |
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| CN (1) | CN207437404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725435A (en) * | 2017-10-30 | 2018-02-23 | 佛山市南海九洲普惠风机有限公司 | A kind of centrifugal fan structure |
-
2017
- 2017-10-30 CN CN201721439920.9U patent/CN207437404U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725435A (en) * | 2017-10-30 | 2018-02-23 | 佛山市南海九洲普惠风机有限公司 | A kind of centrifugal fan structure |
| CN107725435B (en) * | 2017-10-30 | 2024-03-19 | 佛山市南海九洲普惠风机有限公司 | Centrifugal fan structure |
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