CN101571139A - Noise-reducing guide plate - Google Patents
Noise-reducing guide plate Download PDFInfo
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- CN101571139A CN101571139A CNA2008101056136A CN200810105613A CN101571139A CN 101571139 A CN101571139 A CN 101571139A CN A2008101056136 A CNA2008101056136 A CN A2008101056136A CN 200810105613 A CN200810105613 A CN 200810105613A CN 101571139 A CN101571139 A CN 101571139A
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- guide plate
- flow fan
- vortex flow
- wind
- noise
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- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention relates to a vortex flow fan, in particular to a noise-reducing guide plate for the vortex flow fan. The guide plate comprises a windward guide plate, a leeward guide plate and a side guide plate, wherein the windward guide plate is obliquely arranged on one side of an eccentric turbine in the vortex flow fan and is a curved panel, and the leeward guide plate is vertically arranged opposite to the windward guide plate and is a flat panel. The noise-reducing guide plate for the vortex flow fan has the advantages that the flow direction of air flow blown out by the vortex flow fan is changed through the improvement of the structure and the assembly mode of the guide plate, the air flow does not collide and rub against the inner wall of a machine cabinet of an air-conditioner, turbulent flow does not occur, and the air flow can be directly blown to an evaporator of the air-conditioner. The noise-reducing guide plate has the advantages of simple structure, convenient processing, good noise-reducing effect, low noise-reducing cost and easy wide application.
Description
Technical field
The present invention relates to vortex flow fan, specifically is the noise-reducing guide plate on the vortex flow fan, is specially adapted to the vortex flow fan in the cabinet type air conditioner indoor machine.
Background technique
Existing cabinet air conditioner is divided into indoor set and outdoor unit, in indoor set, be provided with vortex flow fan, vortex flow fan is inhaled into indoor hot air in the vortex flow fan by the intake grill place, indoor hot air is driven by the vortex flow fan flabellum and be compressed and produce certain blast in the spiral case of fan, outlet port from volute body blows out then, the hot air that is blown blows to the vaporizer of air conditioner via the cavity in the cabinet-type air conditioner casing, hot air carries out cold and hot exchange at the vaporizer place, make the temperature of hot air obtain cooling, the exhaust outlet from air conditioner blows out cool air then.As shown in Figure 1, in existing cabinet type air conditioner indoor machine, the spiral case of vortex flow fan, two inclination guide plates 6,7 are installed at the exhaust outlet place, these two guide plates all are the outlet ports that is mounted obliquely within the fan spiral case, the direction of its inclination should be consistent with the flow direction of blow gas in the vortex flow fan basically, and two guide plates all are straight plates.After the gas of vortex flow fan discharge blows out along the guide plate outlet of tilting, most of air-flow will be blown on the inwall of indoor set casing, the air-flow that blows to the rack inwall will be ejected by certain angle by inwall, and by the air-flow that ejected will with the air-flow that newly was blown into afterwards at the inner collision friction mutually of casing, make gas produce turbulent flow in the inside of casing, when the pressure of air-flow high more, when the flow velocity of air-flow is fast more, the phenomenon that gas produces turbulent flow is just serious more, and this turbulent flow of gas and frictional impact are to cause the major reason that produces noise in the cabinet type air conditioner indoor machine.Have because two blocks of air flow guiding plates that are installed in the spiral case exhaust outlet place of vortex flow fan all are the settings of tilting, the resistance that makes air-flow that vortex flow fan blew out be subjected to also can be bigger again, and this resistance can produce noise, also can reduce the working efficiency of blower fan.For these reasons, be necessary spiral case to vortex flow fan in the existing cabinet type air conditioner indoor machine, the guide plate that is provided with at the exhaust outlet place is transformed, the turbulent airflow that vortex flow fan is produced in the exhaust outlet place becomes advection or laminar flow, this improvement is not only applicable to air conditioner, equally applicable to other vortex equipment yet.
Summary of the invention
The objective of the invention is to design a kind of vortex flow fan noise-reducing guide plate, be used to reduce the noise of cabinet type air conditioner indoor machine, can also improve the working efficiency of vortex flow fan simultaneously.
For achieving the above object, technological scheme of the present invention is to adopt described guide plate to comprise: guide plate, leeward guide plate and side guide plate facing the wind, the described guide plate that facings the wind is arranged on a side of eccentric turbine in the described vortex flow fan, and the described guide plate that facings the wind is a side that is arranged on eccentric turbine in the described vortex flow fan obliquely, the described guide plate that facings the wind is the curved surface panel, described leeward guide plate is arranged on the opposite of the described guide plate that facings the wind, and described leeward guide plate is the opposite that is arranged on the described guide plate that facings the wind vertically, and described leeward guide plate is a flat panel
Wherein, described its bottom of guide plate of facining the wind that is obliquely installed is connected with the spiral case of described vortex flow fan, and its top is connected with the sidewall of side with the cabinet of the described vortex flow fan of placement.
Wherein, the described curved surface that facings the wind guide plate is the curved surface towards the projected side wall of described cabinet.
Wherein, the edge of the spiral case of the bottom of described curved guide plate and described vortex flow fan adopts fillet to be connected smoothly.
Wherein, the described guide plate that facings the wind is the guide plate that facings the wind on the vortex flow fan described in the cabinet type air conditioner indoor machine.
Wherein, in described cabinet type air conditioner indoor machine, the top of the guide plate that facings the wind on the described vortex flow fan is connected with the one side smooth-sided of cabinet.
Wherein, the another side sidewall of described cabinet type air conditioner indoor machine and described leeward guide plate also are smooth connections, or the another side sidewall of cabinet type air conditioner indoor machine is connected to the dislocation of the sidewall outside with described leeward guide plate.
Wherein, the described housing that facings the wind guide plate and leeward guide plate and described vortex flow fan is an overall structure.
Wherein, described facing the wind guide plate and leeward guide plate adopt bonding, the mode of welding, rivet, be threaded, peg graft and the housing of described vortex flow fan to link together.
Advantage of the present invention and beneficial effect are, by change to deflector structure and mounting type, reduced the noise of cabinet type air conditioner indoor machine, because the tilted-putted guide plate that facings the wind is designed to spiral case hull outside projection or crooked curved surface in the spiral case outlet port of vortex flow fan, the air-flow that vortex flow fan blows out is when blowing to this curved surface, the flow direction of air-flow on this curved surface will be changed, air-flow after change flowing to will be no longer and the friction that bumps of the inwall of air conditioner rack, no longer include the air-flow that is ejected by the rack inwall, the air-flow that makes vortex flow fan blow out can directly upwards blow to the vaporizer of air conditioner, simultaneously because the leeward guide plate of vortex flow fan spiral case opposite side is installed in the outlet port of spiral case vertically upward, make the air-flow in vortex flow fan source can directly upwards blow air conditioner to vaporizer, so just can greatly reduce the resistance of air-flow, improved the working efficiency of vortex flow fan, this vertical set-up mode also helps reducing the noise of cabinet type air conditioner indoor machine simultaneously.This noise-reducing guide plate, simple in structure, easy to process, excellent noise reduction effect, noise reduction cost are low, are easy to be extensive use of.
Description of drawings
Fig. 1 is existing noise-reducing guide plate structural representation;
Fig. 2 is a noise-reducing guide plate structural representation of the present invention.
Among the figure: 1, guide plate; 2, vortex flow fan housing; 3, the guide plate that facings the wind; 4, fillet; 5, leeward guide plate; 6,7, inclination guide plate.
Embodiment
Following examples are used to illustrate the present invention, but are not used for limiting practical range of the present invention.
As shown in Figure 2, the specific embodiment of the present invention is to adopt, vortex flow fan is housed in cabinet type air conditioner indoor machine, vortex flow fan can be inhaled into indoor hot air in the vortex flow fan by the intake grill place, indoor hot air is driven by the vortex flow fan flabellum and is compressed in the spiral case of fan, compressed indoor hot air produces certain air pressure, indoor hot air with certain air pressure blows out from the volute body outlet port of vortex flow fan, the indoor hot air that is blown blows to the vaporizer of air conditioner via the cavity in the cabinet-type air conditioner casing, hot air carries out cold and hot exchange at vaporizer place and evaporator shell, through after the cold and hot exchange, the temperature of indoor hot air has obtained cooling, and the indoor air after the cooling blows out cool air from the exhaust outlet of cabinet type air conditioner indoor machine.If air conditioner is to be operated in the heating mode state, what then vortex flow fan sucked is indoor cool air, discharge be hot air.
The technological scheme of present embodiment is that the guide plate that has vortex flow fan volute body outlet port now is improved, and has adopted a kind of novel noise-reducing guide plate 1, and this guide plate 1 is installed in the exhaust outlet place on the vortex flow fan housing 2.Guide plate 1 is divided into guide plate 3 down with the wind, leeward guide plate 5 and side guide plate, the guide plate 3 that facings the wind is arranged on a side of eccentric turbine in the vortex flow fan, and the guide plate 3 that facings the wind is sides that are arranged on eccentric turbine in the vortex flow fan obliquely, the guide plate 3 that facings the wind is curved surface panels, because curved guide plate makes air-flow that vortex flow fan blows out when blowing to this curved surface, the flow direction of air-flow on this curved surface will be changed, air-flow after change flowing to will be no longer and the friction that bumps of the inwall of air conditioner rack, no longer include the air-flow that is ejected by rack inside, therefore just can not produce the turbulent phenomenon of air-flow, the air-flow that makes vortex flow fan blow out can directly upwards blow to the vaporizer of air conditioner.The direction of guide plate 3 its inclinations of facining the wind that are obliquely installed should with vortex flow fan in blow out the inclination of air-flow towards consistent, air-flow is that the tangent direction along spiral case is blown, direction that the vortex flow fan flabellum blows out at its air-flow of the difference position in spiral case outlet port is a difference to some extent, as shown in Figure 2, the direction of air-flow is towards upper left basically.The curved design of guide plate 3 of will facining the wind in the present invention becomes the curved surface towards vortex flow fan spiral case hull outside projection, and the curved design of the guide plate 3 that will facing the wind in other words conj.or perhaps becomes the curved surface towards the inboard depression of vortex flow fan spiral case housing.Adopt fillet 4 to be connected smoothly together with the edge that the vortex flow fan volute body exports on one side of the guide plate 3 that facings the wind.
In most preferred embodiment of the present invention, the guide plate 3 that facings the wind is to be used for the cabinet type air conditioner indoor machine vortex flow fan.In cabinet type air conditioner indoor machine, the another side of the guide plate 3 that facings the wind on the vortex flow fan is connected with a smooth-sided of cabinet.As shown in Figure 2, leeward guide plate 5 is arranged on the opposite of guide plate 3 down with the wind, and leeward guide plate 5 is to be arranged on the opposite of guide plate 3 down with the wind vertically, at another sidewall and leeward guide plate 5 smooth connections that vertically are provided with of cabinet type air conditioner indoor machine, also can adopt the dislocation Placement to interconnect with the leeward guide plate 5 that vertically is provided with another sidewall of cabinet type air conditioner indoor machine.Most preferred embodiment of the present invention is that facing the wind guide plate 3 and leeward guide plate 5 are made an integral body with the volute body of described vortex flow fan, also can adopt mode and described housing bonding, that weld, rivet, be threaded, peg graft to link together facing the wind guide plate 3 and leeward guide plate 5.
The advantage of present embodiment is, by change to deflector structure and mounting type, reduced the noise of cabinet type air conditioner indoor machine, owing to be designed to spiral case hull outside projection or crooked curved surface at the tilted-putted guide plate in the spiral case outlet port of vortex flow fan, the air-flow that vortex flow fan blows out is when blowing to this curved surface, the flow direction of air-flow on this curved surface will be changed, air-flow after change flowing to will be no longer and the friction that bumps of the inwall of air conditioner rack, no longer include the air-flow that is ejected by the rack inwall, the air-flow that makes vortex flow fan blow out can directly upwards blow to the vaporizer of air conditioner, simultaneously because the guide plate of vortex flow fan spiral case opposite side is installed in the outlet port of spiral case vertically upward, make the air-flow in vortex flow fan source can directly upwards blow air conditioner to vaporizer, so just can greatly reduce the resistance of air-flow, improved the working efficiency of vortex flow fan, this vertical set-up mode also helps reducing the noise of cabinet type air conditioner indoor machine simultaneously.This noise-reducing guide plate, simple in structure, easy to process, excellent noise reduction effect, noise reduction cost are low, are easy to be extensive use of.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1, a kind of vortex flow fan noise-reducing guide plate, it is characterized in that, described guide plate comprises: guide plate, leeward guide plate and side guide plate facing the wind, the described guide plate that facings the wind is arranged on a side of eccentric turbine in the described vortex flow fan, and the described guide plate that facings the wind is a side that is arranged on eccentric turbine in the described vortex flow fan obliquely, the described guide plate that facings the wind is the curved surface panel, described leeward guide plate is arranged on the opposite of the described guide plate that facings the wind, and described leeward guide plate is the opposite that is arranged on the described guide plate that facings the wind vertically, and described leeward guide plate is a flat panel.
2, noise-reducing guide plate as claimed in claim 1 is characterized in that, described its bottom of guide plate of facining the wind that is obliquely installed is connected with the spiral case of described vortex flow fan, and its top is connected with the sidewall of side with the cabinet of the described vortex flow fan of placement.
3, noise-reducing guide plate as claimed in claim 2 is characterized in that, the described curved surface that facings the wind guide plate is the curved surface towards the projected side wall of described cabinet.
4, noise-reducing guide plate as claimed in claim 3 is characterized in that, the edge of the bottom of described curved guide plate and the spiral case of described vortex flow fan adopts fillet to be connected smoothly.
5, noise-reducing guide plate as claimed in claim 4 is characterized in that, the described guide plate that facings the wind is the guide plate that facings the wind on the vortex flow fan described in the cabinet type air conditioner indoor machine.
6, noise-reducing guide plate as claimed in claim 5 is characterized in that, in described cabinet type air conditioner indoor machine, the top of the guide plate that facings the wind on the vortex flow fan is connected with the one side smooth-sided of cabinet.
7, noise-reducing guide plate as claimed in claim 6, it is characterized in that, the another side sidewall of described cabinet type air conditioner indoor machine and described leeward guide plate also are smooth connections, or the another side sidewall of cabinet type air conditioner indoor machine is connected to the dislocation of the sidewall outside with described leeward guide plate.
As the described noise-reducing guide plate of the arbitrary claim of claim 2 to 7, it is characterized in that 8, the described housing that facings the wind guide plate and leeward guide plate and described vortex flow fan is an overall structure.
As the described noise-reducing guide plate of the arbitrary claim of claim 2 to 7, it is characterized in that 9, the mode that described facing the wind guide plate and leeward guide plate adopt is bonding, weld, rivet, be threaded, peg graft and the housing of described vortex flow fan link together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101056136A CN101571139A (en) | 2008-04-30 | 2008-04-30 | Noise-reducing guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101056136A CN101571139A (en) | 2008-04-30 | 2008-04-30 | Noise-reducing guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101571139A true CN101571139A (en) | 2009-11-04 |
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ID=41230581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101056136A Pending CN101571139A (en) | 2008-04-30 | 2008-04-30 | Noise-reducing guide plate |
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| Country | Link |
|---|---|
| CN (1) | CN101571139A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211510A (en) * | 2011-04-29 | 2011-10-12 | 上海贝洱热系统有限公司 | Noise-reducing air-inlet structure for vehicle air conditioner |
| CN109891155A (en) * | 2016-10-31 | 2019-06-14 | 三菱电机株式会社 | Indoor unit and air-conditioning device |
-
2008
- 2008-04-30 CN CNA2008101056136A patent/CN101571139A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211510A (en) * | 2011-04-29 | 2011-10-12 | 上海贝洱热系统有限公司 | Noise-reducing air-inlet structure for vehicle air conditioner |
| CN109891155A (en) * | 2016-10-31 | 2019-06-14 | 三菱电机株式会社 | Indoor unit and air-conditioning device |
| CN109891155B (en) * | 2016-10-31 | 2021-09-21 | 三菱电机株式会社 | Indoor unit and air conditioning device |
| US11262098B2 (en) | 2016-10-31 | 2022-03-01 | Mitsubishi Electric Corporation | Indoor unit and air-conditioning apparatus |
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Application publication date: 20091104 |