CN2370329Y - Flow guider for fan ouelet - Google Patents
Flow guider for fan ouelet Download PDFInfo
- Publication number
- CN2370329Y CN2370329Y CN 99237322 CN99237322U CN2370329Y CN 2370329 Y CN2370329 Y CN 2370329Y CN 99237322 CN99237322 CN 99237322 CN 99237322 U CN99237322 U CN 99237322U CN 2370329 Y CN2370329 Y CN 2370329Y
- Authority
- CN
- China
- Prior art keywords
- casing
- utility
- housing
- fan
- inner sleeve
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a flow guider for a fan outlet. The utility model comprises a casing which is provided with a wind inlet and a wind outlet, wherein, a plurality of inner sleeve rings which are distributed evenly are sheathed in an inner cavity of the casing, and the shape of each inner sleeve ring is similar to the shape of the inner cavity of the casing; the inner sleeve rings and the casing are assembled with each other to form an integrative structure by connecting elements. Because the structure of the utility model, the inner sleeve rings arranged in the inner cavity of the casing can be separated from each other and the friction can be realized between the inner sleeve rings and the inner cavity to generate the high-frequency resonance when the air carried with the fan noise passes through the wind inlet and the wind outlet of the casing; thereby, the low-frequency components of the fan noise can be efficiently changed to the high-frequency components, and the fan noise can be sufficiently absorbed by a silencer.
Description
The utility model relates to a kind of central air-conditioning blower fan exducer.
Noise in the central air conditioner system is mainly produced by blower fan.Because the existence of fan noise, give work and the people that live in the office building, auditoriums, hotels that central air conditioner system is installed have brought many inconvenience.For address this problem the current method that muffler is installed that all adopts on air supply duct.But, cause the erasure effect of muffler not good because muffler is higher and low to low frequency composition absorption efficiency to the high frequency composition absorption efficiency in the fan noise.
The purpose of this utility model just is to provide a kind of blower fan exducer, and the low frequency composition during it is can be with blower fan noise generated is changed into the high frequency composition, is beneficial to the abundant absorption of muffler to fan noise.
The purpose of this utility model can realize by following measure:
The utility model comprises the housing that has into and out of the air port, is set with a plurality of uniform and its shape and the similar inside races of housing inner chamber in this housing inner chamber, and described inside race combines by connector and housing.
For more effectively with blower fan the low frequency composition in noise generated change into the high frequency composition, the cross section of described housing is a horn shape, is evenly equipped with three inside races in described housing inner chamber.
Advantage of the present utility model just is to adopt having in the housing inner chamber in air port by connector and is evenly equipped with a plurality of and the similar inside race of hull shape in the mode of suit, make when the gas that is loaded with fan noise from housing when the air port is passed through, inside race in the housing inner chamber is separated and produce high-frequency resonance with the inside race friction with being set at, thereby the low frequency composition in the fan noise is changed into the high frequency composition effectively, reached the purpose that makes muffler can fully absorb fan noise.
The drawing of accompanying drawing is described as follows:
Fig. 1 cuts open figure for master of the present utility model.
Fig. 2 is the right view of Fig. 1.
The utility model is done one below in conjunction with specific embodiment (accompanying drawing) and is described in detail:
As shown in the figure, the utility model comprises the housing made from quieter material 2 that has into and out of the air port, and the cross section of this housing 2 is a horn shape; Be set with the similar inside race made from thin plate 1 of three uniform and its shapes and housing 2 inner chambers in housing 2 inner chambers, described inside race 1 combines by connector 3 and housing 2, and described connector 3 is a cross structure.For ease of the utility model and being connected that blower fan exports, one tube connector 4 is installed at the utility model air inlet place.
Claims (3)
1, a kind of blower fan exducer, it is characterized in that: it comprises the housing (2) that has into and out of the air port, be set with a plurality of uniform and its shape and the similar inside races (1) of housing (2) inner chamber in this housing (2) inner chamber, described inside race (1) combines by connector (3) and housing (2).
2, blower fan exducer according to claim 1 is characterized in that: the cross section of described housing (2) is a horn shape.
3, blower fan exducer according to claim 1 and 2 is characterized in that: be evenly equipped with three inside races (1) in described housing (2) inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99237322 CN2370329Y (en) | 1999-03-12 | 1999-03-12 | Flow guider for fan ouelet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99237322 CN2370329Y (en) | 1999-03-12 | 1999-03-12 | Flow guider for fan ouelet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2370329Y true CN2370329Y (en) | 2000-03-22 |
Family
ID=34024989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99237322 Expired - Fee Related CN2370329Y (en) | 1999-03-12 | 1999-03-12 | Flow guider for fan ouelet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2370329Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845945A (en) * | 2010-04-01 | 2010-09-29 | 芬雷选煤工程技术(北京)有限公司 | Well head heater taking heat pump as heat source |
| CN103047812A (en) * | 2013-01-08 | 2013-04-17 | 合肥工业大学 | Low-noise circulating fan system for refrigerator |
| CN103821550A (en) * | 2014-03-05 | 2014-05-28 | 中国矿业大学(北京) | Multi-layer flared ventilation diffuser for main fan of mine |
| CN115771995A (en) * | 2022-12-30 | 2023-03-10 | 重庆鑫景特种玻璃有限公司 | Float glass tin bath purging device |
-
1999
- 1999-03-12 CN CN 99237322 patent/CN2370329Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845945A (en) * | 2010-04-01 | 2010-09-29 | 芬雷选煤工程技术(北京)有限公司 | Well head heater taking heat pump as heat source |
| CN103047812A (en) * | 2013-01-08 | 2013-04-17 | 合肥工业大学 | Low-noise circulating fan system for refrigerator |
| CN103821550A (en) * | 2014-03-05 | 2014-05-28 | 中国矿业大学(北京) | Multi-layer flared ventilation diffuser for main fan of mine |
| CN103821550B (en) * | 2014-03-05 | 2016-06-22 | 中国矿业大学(北京) | Mine main fan multilamellar is tubaeform ventilation bubbler |
| CN115771995A (en) * | 2022-12-30 | 2023-03-10 | 重庆鑫景特种玻璃有限公司 | Float glass tin bath purging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |