CN203548279U - Sound attenuating fan - Google Patents
Sound attenuating fan Download PDFInfo
- Publication number
- CN203548279U CN203548279U CN201320743131.XU CN201320743131U CN203548279U CN 203548279 U CN203548279 U CN 203548279U CN 201320743131 U CN201320743131 U CN 201320743131U CN 203548279 U CN203548279 U CN 203548279U
- Authority
- CN
- China
- Prior art keywords
- motor
- wind turbine
- clack
- wind wheel
- dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000009434 installation Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000002238 attenuated effect Effects 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a sound attenuating fan. The fan comprises a machine case, wherein an air inlet is formed in the left wall of the machine case, an air outlet is formed in the right wall, and a motor and a wind turbine are arranged in the machine case; the motor comprises a motor body and a rotary shaft connected with the wind turbine, the wind turbine comprises a clack pieces, and a dust blocking net is arranged on the portion, between the wind turbine and the motor body, of the rotary shaft; each clack piece is provided with a convex part extending in the direction of the length, the convex part decreases from the middle of the wind turbine to the outer edge, and a continuous arc-shaped structure is arranged on the right side of the clack piece; an annular concave part corresponding to the wind turbine is formed in the inner wall of the case body, and an inner sound attenuating sleeve is arranged in the concave part; impurities such as dust are prevented from entering the motor, normal running of the motor is guaranteed, rotating stability of the wind turbine is enhanced, it is avoided that the clack pieces of the wind turbine are fractured because the rotating speed is too high, and noise generated by wind and the clack pieces is attenuated by the arc-shaped structure; through the sound attenuating sleeve, it is avoided that wind penetrates out from the ends of the clack pieces to impact the case body and generate noise. The sound attenuating fan is stable and simple in structure, easy to install and detach and convenient to clean.
Description
Technical field
The utility model relates to mechanical engineering field, especially relates to one and subtracts sound blower fan.
Background technique
Existing blower fan comprises motor and wind wheel, and in use, limb is large near limit and the wind action area of exhaust outlet one side, makes active force excessive, easily produces noise for blower fan, and wind from the end of limb, pass impact housing easily produce noise; The limb of wind wheel is thin, the poor stability of rotation, and limb easily causes fractureing because rotating speed is too fast.
Though existing motor is provided with dustproof shell, have certain dust-proof effect, impurity still can enter in motor between machine shaft and motor housing, affects the normal operation of motor, and then the work of blower fan is impacted.
Model utility content
The utility model, in order to overcome the deficiencies in the prior art, provides a kind of good dustproof effect, and working efficiency is high subtracts sound blower fan.
To achieve these goals, the utility model by the following technical solutions: one subtracts sound blower fan, comprises casing, and the left wall of described casing is provided with intake grill, and right wall is provided with exhaust outlet, is provided with motor and wind wheel in described casing; Described motor comprises motor body and the rotating shaft that is connected wind wheel, and wind wheel comprises limb, and described rotating shaft is provided with dust-break net between wind wheel and motor body; Described limb is provided with the protuberance extending along its length, and this protuberance diminishes to outer edge by the middle of wind wheel, and the right edge of limb is provided with continuous arcuate structure; Described inner walls has the annular recess corresponding with wind wheel, is provided with and subtracts sound inner sleeve in this recess.
As preferably, described dust-break net comprises annular dust-break sheet and is located at the installation sleeve in the middle of dust-break sheet, and this installation sleeve is sheathed on the outside of rotating shaft, and installation sleeve is fixed in rotating shaft by latch, and described limb is 6.
In sum, the utlity model has following advantage: this dust-break net is set, avoids dust and other impurities to enter motor internal, affect the normal work of motor, guaranteed the normal operation of motor, and then avoid the work of blower fan to impact; The dust-break net installing/dismounting of this setting is simple, and cleaning is convenient, thorough, and using effect is good; This protuberance is set and has strengthened the stability of wind wheel rotation, avoid causing because rotating speed is too fast wind wheel limb to fracture simultaneously, arcuate structure is set, reduced the active area of wind to limb, also reduced the active force of wind to limb, and then weakened noise; This is set and subtracts sound cover and avoid wind to pass from the end of limb, impact housing and produce noise, and this structural stability is simple, easily, cleaning is convenient in installation and removal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is carried out to clear, complete description.
As shown in Figure 1, one subtracts sound blower fan, comprises casing 1, and the left wall of described casing 1 is provided with intake grill 11, and right wall is provided with exhaust outlet 12, is provided with motor 2 and wind wheel 3 in described casing 1; Described motor 2 comprises motor body 21 and the rotating shaft that is connected wind wheel 3, and described rotating shaft is provided with dust-break net 22 between wind wheel 3 and motor body 21; This dust-break net is set, avoids dust and other impurities to enter motor internal, affect the normal work of motor, guaranteed the normal operation of motor, and then avoid the work of blower fan to impact.
Concrete, described dust-break net 22 comprises annular dust-break sheet and the installation sleeve of being located in the middle of dust-break sheet, and this installation sleeve is sheathed on the outside of rotating shaft, and installation sleeve is fixed in rotating shaft by latch; The dust-break net installing/dismounting of this setting is simple, and cleaning is convenient, thorough, and using effect is better.
Described wind wheel 3 comprises limb 31, and described limb 31 is provided with the protuberance extending along its length, and this protuberance is by diminishing to outer edge in the middle of wind wheel 3, and the right edge of limb 31 is provided with continuous arcuate structure; This protuberance is set and has strengthened the stability of wind wheel rotation, avoid causing because rotating speed is too fast wind wheel limb to fracture simultaneously; Arcuate structure is set, has reduced the active area of wind to limb, also reduced the active force of wind to limb, and then weakened noise.
Further, described housing 1 inwall has the annular recess 13 corresponding with wind wheel 3, in this recess 13, is provided with and subtracts sound inner sleeve 14, arrange this subtract sound cover avoid wind from the end of limb, pass impact housing produce noise, and this structural stability is simple, easily, cleaning is convenient in installation and removal simultaneously.
For what make limb, subtract sound best results, described limb 31 is made as 6.
Obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all should belong to the scope of the utility model protection.
Claims (2)
1. one kind subtracts sound blower fan, comprise casing (1), the left wall of described casing (1) is provided with intake grill (11), and right wall is provided with exhaust outlet (12), is provided with motor (2) and wind wheel (3) in described casing (1); Described motor (2) comprises motor body (21) and the rotating shaft that is connected wind wheel (3), wind wheel (3) comprises limb (31), it is characterized in that: described rotating shaft is positioned between wind wheel (3) and motor body (21) and is provided with dust-break net (22); Described limb (31) is provided with the protuberance extending along its length, and this protuberance diminishes to outer edge by the middle of wind wheel (3), and the right edge of limb (31) is provided with continuous arcuate structure; Described housing (1) inwall has the annular recess (13) corresponding with wind wheel (3), is provided with and subtracts sound inner sleeve (14) in this recess (13).
2. the sound blower fan that subtracts according to claim 1, it is characterized in that: described dust-break net (22) comprises annular dust-break sheet and is located at the middle installation sleeve of dust-break sheet, this installation sleeve is sheathed on the outside of rotating shaft, installation sleeve is fixed in rotating shaft by latch, and described limb (31) is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743131.XU CN203548279U (en) | 2013-11-14 | 2013-11-14 | Sound attenuating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743131.XU CN203548279U (en) | 2013-11-14 | 2013-11-14 | Sound attenuating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548279U true CN203548279U (en) | 2014-04-16 |
Family
ID=50466403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743131.XU Expired - Fee Related CN203548279U (en) | 2013-11-14 | 2013-11-14 | Sound attenuating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306755A (en) * | 2020-02-28 | 2020-06-19 | 青岛海尔空调器有限总公司 | Air duct assembly and air conditioning equipment |
-
2013
- 2013-11-14 CN CN201320743131.XU patent/CN203548279U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306755A (en) * | 2020-02-28 | 2020-06-19 | 青岛海尔空调器有限总公司 | Air duct assembly and air conditioning equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141114 |
|
| EXPY | Termination of patent right or utility model |