CN203608005U - Noise reduction end shield of novel structure - Google Patents
Noise reduction end shield of novel structure Download PDFInfo
- Publication number
- CN203608005U CN203608005U CN201320726389.9U CN201320726389U CN203608005U CN 203608005 U CN203608005 U CN 203608005U CN 201320726389 U CN201320726389 U CN 201320726389U CN 203608005 U CN203608005 U CN 203608005U
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- end shield
- cylinder
- outer cylinder
- reduction end
- 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
Links
- 239000006260 foam Substances 0.000 claims abstract description 5
- 229920002635 polyurethane Polymers 0.000 claims abstract description 5
- 239000004814 polyurethane Substances 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a noise reduction end shield of a novel structure. The problem existing in the prior art that during the cooling process of a motor, a noise reduction cover structure added to a cooling device cannot satisfy the demands of special occasions is overcome. The noise reduction end shield of the novel structure comprises an outer cylinder and an inner cylinder, the internal surface of the outer cylinder is connected with the external surface of the inner cylinder, the outer cylinder is provided with an air inlet which is matched and communicated with and an air inlet arranged in the inner cylinder, the inner cylinder wall of the noise reduction inner cylinder is provided with an annular frustum-shaped inner conic cylinder, and the vertex angle [alpha] of the inner conic cylinder is less than or equal to 30 degrees and more than or equal to 60 degrees. The inner cylinder is made of polyurethane flame retardation foam acoustic panels, and the periphery of the outer cylinder is provided with fixed terminals. The cross sections of the outer cylinder and the inner cylinder are round or regular-polygon-shaped. The noise reduction end shield of the novel structure is simple in structure, by reasonably arranging noise reduction materials in the noise reduction end shield and changing the wind path direction and the areas of inlet air and outlet air, a traditional noise reduction cylinder and an end shield cylinder are integrated, and therefore on the premise that the noise reduction effect is not reduced, the size of the noise reduction end shield of the novel structure is reduced, and the installation space of the motor is reduced.
Description
Technical field
This utility model relates to a kind of cooling silencing means of motor, particularly relates to a kind of noise reduction end shield of new structure.
Background technology
At present, in the cooling procedure of various motor, cooling device can produce various noises, and especially air is driven the noise of rear generation.Traditional noise reduction end shield is separately to add a hush pipe to reach noise reduction measure in common end shield rear end, it is a lot of that the noise reduction end shield of this structure can make motor overall length lengthen, when motor mounting space is limited or user is meeting while motor outward appearance being had to specific (special) requirements under the prerequisite of motor performance, the noise reduction end shield of this structure is no longer applicable.
Utility model content
The utility model has overcome in prior art in the cooling procedure of motor, and the added silencer cover structure of cooling device can not meet the problem of special occasions requirement, and a kind of noise reduction end shield of new structure simple in structure, easy to use is provided.
Technical solution of the present utility model is, provide a kind of noise reduction end shield of the new structure with following structure: the inner surface that contains outer cylinder body, inner barrel, outer cylinder body is connected with the outer surface of inner barrel, the air inlet that has mutual coupling to be communicated with on outer cylinder body and inner barrel, the inner tube wall of described noise reduction inner barrel is provided with the inner conical-tube of annular frustoconical type, and the drift angle of inner conical-tube is 30 °≤α≤60 °.
Inner barrel is polyurethane flame-proof foam abatvoix.The periphery of outer cylinder body is provided with suspension ring.The cross section of outer cylinder body, inner barrel is circle or regular polygon.
Compared with prior art, the noise reduction end shield of the utility model new structure has the following advantages: the utility model, by the quieter material in reasonable Arrangement noise reduction end shield, changes wind path trend and outlet and inlet area, and traditional hush pipe and end shield cylinder are integrated.Alternative traditional noise reduction end shield, good muffling effect, volume is little, profile is similar to traditional common end shield, be not less than reduced volume under the prerequisite of traditional noise reduction end shield in erasure effect, the installing space of compression motor, thus meet user's specific (special) requirements, make normal noise and low noise motor profile reach certain similarity.
Accompanying drawing explanation
Fig. 1 be the utility model new structure noise reduction end shield face structural representation;
Fig. 2 is the part section structural representation of the noise reduction end shield of the utility model new structure.
Embodiment
In accompanying drawing explanation, label 1 is outer cylinder body, the 2nd, and air inlet, the 3rd, inner barrel, the 4th, air outlet, the 5th, suspension ring.
Below in conjunction with the drawings and specific embodiments, the noise reduction end shield of the utility model new structure is described further: as shown in the figure, the inner surface that contains outer cylinder body 1, inner barrel 3, outer cylinder body 1 in the present embodiment is connected with the outer surface of inner barrel 3, the air inlet 2 that has mutual coupling to be communicated with on outer cylinder body 1 and inner barrel 3, inner barrel 3 barrels of described noise reduction inner barrel 3 are provided with annular frustoconical body, and the drift angle of annular frustoconical body is 30 °≤α≤60 °.Inner barrel 3 is polyurethane flame-proof foam abatvoix, is to be pasted in the inside of outer cylinder body 1 by multiple abatvoix splicings, and has perforated plate to fix.The periphery of outer cylinder body 1 is provided with suspension ring 5.The cross section of outer cylinder body 1, inner barrel 3 is circle or regular polygon.
The cooling fan of motor interior arranges near air outlet 4, after rotation, can carry out the refrigerating mode of exhausting, cold air sucks in air inlet, can be through inner barrel 3 inside, the annular frustoconical body being provided with through inner barrel 3, inner barrel 3 and annular frustoconical body are polyurethane flame-proof foam abatvoix, and the noise that this material can produce Air Flow drops to minimum, thereby meet the effect of eliminating the noise.
The utility model is not only applicable to aerofoil fan, and same centrifugal fan is also suitable for.
Claims (4)
1. the noise reduction end shield of a new structure, the inner surface that contains outer cylinder body (1), inner barrel (3), outer cylinder body (1) is connected with the outer surface of inner barrel (3), the air inlet (2) that has mutual coupling to be communicated with on outer cylinder body (1) and inner barrel (3), it is characterized in that: the inner tube wall of described inner barrel (3) is provided with the inner conical-tube (6) of annular frustoconical type, and the drift angle of inner conical-tube (6) is 30 °≤α≤60 °.
2. the noise reduction end shield of new structure according to claim 1, is characterized in that: described inner barrel (3) is polyurethane flame-proof foam abatvoix.
3. the noise reduction end shield of new structure according to claim 1, is characterized in that: the periphery of described outer cylinder body (1) is provided with suspension ring (5).
4. the noise reduction end shield of new structure according to claim 1, is characterized in that: the cross section of described outer cylinder body (1), inner barrel (3) is circle or regular polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726389.9U CN203608005U (en) | 2013-11-18 | 2013-11-18 | Noise reduction end shield of novel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726389.9U CN203608005U (en) | 2013-11-18 | 2013-11-18 | Noise reduction end shield of novel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203608005U true CN203608005U (en) | 2014-05-21 |
Family
ID=50720663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320726389.9U Expired - Fee Related CN203608005U (en) | 2013-11-18 | 2013-11-18 | Noise reduction end shield of novel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203608005U (en) |
-
2013
- 2013-11-18 CN CN201320726389.9U patent/CN203608005U/en not_active Expired - Fee Related
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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: 20140521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |