CN201991818U - Through-flow fan bearing seat applied on air conditioner - Google Patents
Through-flow fan bearing seat applied on air conditioner Download PDFInfo
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- CN201991818U CN201991818U CN2011200934681U CN201120093468U CN201991818U CN 201991818 U CN201991818 U CN 201991818U CN 2011200934681 U CN2011200934681 U CN 2011200934681U CN 201120093468 U CN201120093468 U CN 201120093468U CN 201991818 U CN201991818 U CN 201991818U
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- flow fan
- bearing seat
- main body
- bearing support
- flow
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Abstract
The utility model discloses a through-flow fan bearing seat, which is reasonable in structure and can reduce the noise of a through-flow fan. The through-flow fan bearing seat comprises a bearing seat main body. The central part of the bearing seat main body is provided with a shaft hole of the through-flow fan; the shaft hole is internally provided with a bearing groove for installing a bearing; and the upper end of the bearing seat main body is provided with a plurality of grooves which are distributed around the bearing groove. In the through-flow fan bearing seat, since the upper end of the bearing seat main body is provided with the grooves, when the through-flow fan rotates, vortex air flow collides with air flow generated by an impeller, so that the direction of the air flow of the impeller is changed; and the air flow generated by the impeller is prevented from beating a volute tongue to generate air flow noise, so that the quality of the sound is improved.
Description
Technical field
The utility model belongs to air-conditioning and refrigeration engineering technical field, specifically, relates to a kind of axial-flow fan bearing support that is applied on the air conditioner.
Background technique
The axial-flow fan size is little, compact structure, and noise is little, and the air-flow of generation has big, the laterally uniform characteristics of flow, no matter the diameter of impeller how, all can freely be selected impeller length according to the requirement to air quantity.Simultaneously, because fluid two advances scene 2 in impeller, so, just can change air inlet and discharge directions as long as change dividing plate and snail ligulate shape, this brings great convenience for its application, and it can be widely used in the various energy utility systems such as refrigeration air-conditioner, chemical machinery.In refrigerated air-conditioning system, axial-flow fan has become the indispensable important composition parts of split-type air conditioner indoor set, because its effect, make gas enter from indoor wind inlet, pass through heat exchanger, discharge from the axial-flow fan outlet again, make the temperature of air-flow raise or reduction, reach the effect of regulating indoor air temperature.
The fluid of the axial-flow fan inside draught fan impeller of flowing through for twice, fluid radially flow at last and radially flow out.Because the existence of cross flow fan impeller blade tail in the air-conditioning, the circumferential speed that is in close proximity to the impeller outlet place distributes and presents maximum value, minimum value.It is the snail tongue that existing axial-flow fan bottom is provided with a wedge angle, slit between fan and the snail tongue is very narrow, place the snail tongue in this zone and will produce stronger pressure pulsation, thereby formed effective sound radiation of blade passing frequency and its harmonic wave, and the nearly impeller of its snail whip graft will around property ground block air current flow between two blades.Unsettled flowing set up unsettled BLADE FORCE, and this power is the reason that impeller produces discrete noise.Hence one can see that, drives air-flow during fan running, and air-flow hits the snail tongue, produces pneumatic noise.Therefore the research that how to reduce the noise of indoor apparatus of air conditioner has become very necessary.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of rational in infrastructure, axial-flow fan bearing support that can reduce the axial-flow fan noise.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of axial-flow fan bearing support that is applied on the air conditioner, comprise the bearing support main body, the middle part of bearing support main body is provided with the axis hole that axial-flow fan is installed, and is provided with bearings mounted bearing groove in the axis hole, the upper end of described bearing support main body is provided with a plurality of grooves, and groove distributes around bearing groove.
In the utility model, described groove evenly distributes around bearing groove.
In the utility model, the periphery of described bearing support main body is provided with the positioning strip to outer lug.
The beneficial effects of the utility model are: the utility model is provided with a plurality of grooves by the upper end in the bearing support main body, when axial-flow fan rotates, form eddy airstream at groove, the air-flow that eddy airstream and impeller produce collides mutually, changed the direction of impeller air-flow, avoid the impeller air-flow to hit the snail tongue, produced pneumatic noise, improved the quality of sound.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the plan view of present embodiment;
Fig. 2 is A-A direction sectional view of Fig. 1;
Fig. 3 is the right elevation of present embodiment.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model provides a kind of rational in infrastructure, axial-flow fan bearing support that can reduce the axial-flow fan noise, comprise bearing support main body 1, the middle part of bearing support main body 1 is provided with the axis hole 2 that axial-flow fan is installed, be provided with bearings mounted bearing groove 3 in the axis hole 2, the upper end of described bearing support main body 1 is provided with 12 grooves 4, and these 12 grooves 4 evenly distribute around bearing groove 3.By 12 grooves 4, when axial-flow fan rotates, in groove 4, form eddy airstream, the air-flow that eddy airstream and impeller produce collides mutually, has changed the direction of impeller air-flow, has avoided the impeller air-flow to hit the snail tongue, produce pneumatic noise, improved the quality of sound.
Further, install and make things convenient for the circumferential location of bearing support main body 1 for convenience, be provided with positioning strip 5,, make bearing support main body 1 whole stress balance, can not produce vibration by being connected of positioning strip 5 and exterior part to outer lug at the periphery of bearing support main body 1.In order not influence the eddy airstream in 12 grooves 4, positioning strip 5 is between adjacent two grooves 4.
Certainly, the utility model is except above-mentioned mode of execution, and other equivalent technical solutions also should be within its protection domain.
Claims (3)
1. axial-flow fan bearing support that is applied on the air conditioner, comprise bearing support main body (1), the middle part of bearing support main body (1) is provided with the axis hole (2) that axial-flow fan is installed, be provided with bearings mounted bearing groove (3) in the axis hole (2), it is characterized in that: the upper end of described bearing support main body (1) is provided with a plurality of grooves (4), and groove (4) distributes around bearing groove (3).
2. a kind of axial-flow fan bearing support that is applied on the air conditioner according to claim 1 is characterized in that: described groove (4) evenly distributes around bearing groove (3).
3. a kind of axial-flow fan bearing support that is applied on the air conditioner according to claim 1 is characterized in that: the periphery of described bearing support main body (1) is provided with the positioning strip (5) to outer lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200934681U CN201991818U (en) | 2011-04-01 | 2011-04-01 | Through-flow fan bearing seat applied on air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200934681U CN201991818U (en) | 2011-04-01 | 2011-04-01 | Through-flow fan bearing seat applied on air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991818U true CN201991818U (en) | 2011-09-28 |
Family
ID=44668307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200934681U Expired - Fee Related CN201991818U (en) | 2011-04-01 | 2011-04-01 | Through-flow fan bearing seat applied on air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991818U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671220A (en) * | 2012-09-12 | 2014-03-26 | 广东美的制冷设备有限公司 | Dual-layer bearing pedestal used in air conditioner and air conditioner indoor unit with dual-layer bearing pedestal |
| CN108397483A (en) * | 2017-07-18 | 2018-08-14 | 奥克斯空调股份有限公司 | Bearing holder mounting structure and air-conditioning |
| CN112412848A (en) * | 2020-10-28 | 2021-02-26 | 青岛海尔空调器有限总公司 | Cross flow fan assembly, air conditioner and air volume adjusting method thereof |
-
2011
- 2011-04-01 CN CN2011200934681U patent/CN201991818U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671220A (en) * | 2012-09-12 | 2014-03-26 | 广东美的制冷设备有限公司 | Dual-layer bearing pedestal used in air conditioner and air conditioner indoor unit with dual-layer bearing pedestal |
| CN103671220B (en) * | 2012-09-12 | 2016-12-28 | 广东美的制冷设备有限公司 | Double-deck bearing block in air-conditioning and the indoor apparatus of air conditioner with it |
| CN108397483A (en) * | 2017-07-18 | 2018-08-14 | 奥克斯空调股份有限公司 | Bearing holder mounting structure and air-conditioning |
| CN108397483B (en) * | 2017-07-18 | 2024-06-11 | 奥克斯空调股份有限公司 | Bearing pedestal mounting structure and air conditioner |
| CN112412848A (en) * | 2020-10-28 | 2021-02-26 | 青岛海尔空调器有限总公司 | Cross flow fan assembly, air conditioner and air volume adjusting method thereof |
| CN112412848B (en) * | 2020-10-28 | 2022-05-31 | 青岛海尔空调器有限总公司 | Cross flow fan assembly, air conditioner and air volume adjusting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20140401 |