CN104329272A - Centrifugal fan and air conditioner with same - Google Patents
Centrifugal fan and air conditioner with same Download PDFInfo
- Publication number
- CN104329272A CN104329272A CN201410598768.3A CN201410598768A CN104329272A CN 104329272 A CN104329272 A CN 104329272A CN 201410598768 A CN201410598768 A CN 201410598768A CN 104329272 A CN104329272 A CN 104329272A
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- Prior art keywords
- air
- exhaust outlet
- centrifugal blower
- centrifugal
- air channel
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4246—Fan casings comprising more than one outlet
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a centrifugal fan and an air conditioner with the same. The centrifugal fan comprises a bottom shell and at least two centrifugal impellers, wherein the bottom shell comprises a first side face and a second side face which are arranged opposite to each other, and is provided with at least two air ducts; each air duct extends from the first side face to the second side face and is provided with first air outlets in the first side face and second air outlets in the second side face; the air outlet directions of at least two first air outlets in the first side face are consistent; the at least two centrifugal impellers are arranged in the at least two air ducts in one-to-one correspondence. According to the centrifugal fan and the air conditioner with the same, the air yield of the entire centrifugal fan can be increased, further the refrigeration or heating efficiency of the centrifugal fan is improved, and the comfortable feeling of people can be improved.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of centrifugal blower and the air conditioner with it.
Background technique
Centrifugal blower is a kind of driven fluid machinery, and it relies on the mechanical energy of input improve atmospheric pressure and transfer out gas.Being of wide application of blower fan, as the ventilation of factory, mine, tunnel, cooling tower, vehicle, boats and ships and building, dust discharge and cooling.In addition, the cooling in the ventilation of boiler and industrial furnace and air inducing, the apparatus of air conditioning and domestic electric appliance and ventilation.
But in the prior art, the centrifugal blower of air conditioner is for mostly being single air channel blower fan, and this blower fan only can from an air outlet, this make the refrigeration of this blower fan and heating efficiency lower.Along with the development of society, improving constantly of human demand, the centrifugal blower in present single air channel can not meet the demand of people.
Summary of the invention
Main purpose of the present invention is the air conditioner providing a kind of centrifugal blower and have it, to solve the little problem of centrifugal blower air quantity of the prior art.
To achieve these goals, according to an aspect of the present invention, provide a kind of centrifugal blower, centrifugal blower comprises: drain pan, drain pan comprises the first side and the second side that are oppositely arranged, and drain pan is provided with at least two air channels, each air channel all extends to the second side from the first side, each air channel all has the first exhaust outlet being positioned at the first side and the second exhaust outlet being positioned at the second side, and the air-out direction being positioned at least two the first exhaust outlets of the first side is consistent; At least two centrifugal impellers, at least two centrifugal impellers are arranged at least two air channels correspondingly.
Further, the air-out direction being positioned at least two the second exhaust outlets of the second side is consistent.
Further, centrifugal blower also comprises: motion baffle plate, and motion baffle plate is arranged in air channel, and motion baffle plate has first working position of being blocked by the first exhaust outlet and second working position of being blocked by the second exhaust outlet.
Further, the angle between the air-out direction of the first exhaust outlet and the first side is acute angle or obtuse angle.
Further, the angle between the air-out direction of the second exhaust outlet and the second side is acute angle or obtuse angle.
Further, air channel is the air-supply groove be arranged on drain pan, and it is arc surface that the first cell wall of air-supply groove corresponds to the cell wall section of the first exhaust outlet, and the second cell wall of air-supply groove corresponds to the cell wall section of the first exhaust outlet for favouring the inclined-plane of the first side.
Further, the first cell wall correspond to the second exhaust outlet cell wall section for favouring the inclined-plane of the second side, the second cell wall to correspond to the cell wall section of the second exhaust outlet be arc surface.
Further, centrifugal impeller is arranged in the middle part of air channel, and the wall being positioned at the air channel of the periphery of centrifugal impeller is circular arc.
Further, the air-out direction of the first exhaust outlet and the second exhaust outlet is contrary.
Further, motion baffle plate is circular arc block, and the thickness of circular arc block increases from the first end of circular arc block gradually to the second end, and the augment direction of the thickness of circular arc block is consistent with the direction that the outboard end relative inner end of the blade of the centrifugal impeller in the air channel at its place departs from.
Further, drain pan has upper-end surface, lower end surface and the left surface be oppositely arranged and right flank, and upper-end surface is the first side, and lower end surface is the second side.
Further, drain pan has upper-end surface, lower end surface and the left surface be oppositely arranged and right flank, and left surface is the first side, and right flank is the second side.
According to a further aspect in the invention, provide a kind of air conditioner, comprise centrifugal blower, centrifugal blower is above-mentioned centrifugal blower.
Apply technological scheme of the present invention, when centrifugal impeller rotates, wind can be produced in air channel, and be delivered to the first exhaust outlet and the second exhaust outlet by air channel, and then freeze for people or heat in the outside wind in air channel being delivered to centrifugal blower, the air-out direction being positioned at the first exhaust outlet of drain pan first side again due to each air channel is consistent, when centrifugal blower is in refrigerating state, the cold wind flowed out from each first exhaust outlet of drain pan first side there will not be converging phenomenon, and then the cold wind crossed can be avoided directly to blow human body and cause human body uncomfortable.Because centrifugal blower of the present invention is provided with multiple air channel, and the centrifugal impeller of wind processed is set accordingly in air channel, the product air quantity of whole centrifugal blower can be increased, and then improve the refrigeration of centrifugal blower or the efficiency that heats, the comfort of people can be improved.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the three-dimensional structure diagram of the centrifugal blower of the first embodiment of the present invention;
The centrifugal blower that Fig. 2 diagrammatically illustrates the first embodiment of the present invention is in plan view during refrigerating state;
The centrifugal blower that Fig. 3 diagrammatically illustrates the second embodiment of the present invention is in plan view during refrigerating state;
The centrifugal blower that Fig. 4 diagrammatically illustrates the first embodiment of the present invention is in plan view when heating state;
The centrifugal blower that Fig. 5 diagrammatically illustrates the second embodiment of the present invention is in plan view when heating state;
Fig. 6 diagrammatically illustrates the three-dimensional structure diagram of the centrifugal blower of the third embodiment of the present invention;
The centrifugal blower that Fig. 7 diagrammatically illustrates the third embodiment of the present invention is in plan view during refrigerating state; And
The centrifugal blower that Fig. 8 diagrammatically illustrates the third embodiment of the present invention is in plan view when heating state.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, drain pan; 20, air channel; 21, the first exhaust outlet; 22, the second exhaust outlet; 30, centrifugal impeller; 40, motion baffle plate; 50, motor.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Shown in composition graphs 1 to Fig. 8, the left and right above-below direction when left and right above-below direction in figure is centrifugal blower real work of the present invention, in figure, the direction of arrow represents the flow direction of the wind of centrifugal blower.
Shown in Fig. 1,2 and 4, according to the first embodiment of the present invention, provide a kind of centrifugal blower, this centrifugal blower comprises drain pan 10 and at least two centrifugal impellers 30.Wherein, drain pan 10 comprises the first side and the second side that are oppositely arranged, drain pan 10 is provided with at least two air channels 20, each air channel 20 all extends to the second side from the first side, each air channel 20 all has the second exhaust outlet 22 of the first exhaust outlet 21 being positioned at drain pan 10 first side and the second side being positioned at drain pan 10, and the air-out direction being positioned at least two the first exhaust outlets 21 of the first side of drain pan 10 is consistent; At least two centrifugal impellers 30 are arranged at least two air channels 20 correspondingly.
When centrifugal impeller 30 rotates, wind can be produced in air channel 20, and be delivered to the first exhaust outlet 21 and the second exhaust outlet 22 by air channel 20, and then freeze for people or heat in the outside wind in air channel 20 being delivered to centrifugal blower, the air-out direction being positioned at the first exhaust outlet 21 of drain pan 10 first side again due to each air channel 20 is consistent, when centrifugal blower is in refrigerating state, the cold wind flowed out from each first exhaust outlet 21 of drain pan 10 first side there will not be converging phenomenon, and then the cold wind crossed can be avoided directly to blow human body and cause human body uncomfortable.Centrifugal blower due to the present embodiment is provided with multiple air channel 20, and the centrifugal impeller 30 of wind processed is set accordingly in air channel 20, the product air quantity of whole centrifugal blower can be increased, and then improve the refrigeration of centrifugal blower or the efficiency that heats, the comfort of people can be improved.
Preferably, drain pan 10 has upper-end surface, lower end surface and the left surface be oppositely arranged and right flank, above-mentioned each air channel 20 extends to lower end surface from the upper-end surface of drain pan 10, each air channel 20 all has the first exhaust outlet 21 being positioned at drain pan 10 upper-end surface and the second exhaust outlet 22 being positioned at drain pan 10 lower end surface, and the air-out direction being positioned at the first exhaust outlet 21 of drain pan 10 upper-end surface in each air channel 20 is consistent.First side of above-mentioned drain pan 10 is upper-end surface, and the second side is lower end surface.
When centrifugal impeller 30 rotates, wind can be produced in air channel 20, and be delivered to the first exhaust outlet 21 and the second exhaust outlet 22 by air channel 20, and then freeze for people or heat in the outside wind in air channel 20 being delivered to centrifugal blower, the air-out direction being positioned at the first exhaust outlet 21 of drain pan 10 upper-end surface again due to each air channel 20 is consistent, when centrifugal blower is in refrigerating state, the cold wind flowed out from each first exhaust outlet 21 of drain pan 10 upper-end surface there will not be converging phenomenon, and then the cold wind crossed can be avoided directly to blow human body and cause human body uncomfortable.Centrifugal blower due to the present embodiment is provided with multiple air channel 20, and the centrifugal impeller 30 of wind processed is set accordingly in air channel 20, the product air quantity of whole centrifugal blower can be increased, and then improve the refrigeration of centrifugal blower or the efficiency that heats, the comfort of people can be improved.
In order to drive centrifugal impeller 30 to work, the middle part of the centrifugal impeller 30 of the present embodiment is provided with motor 50, and when motor 50 obtains electric rotation, drive centrifugal impeller 30 to rotate wind processed, structure is simple, is convenient to realize.
Preferably, the air-out direction being positioned at the second exhaust outlet 22 of drain pan 10 lower end surface of the present embodiment is consistent, when centrifugal blower be in heat state time, hot blast flows out from the lower end of drain pan 10, the density of hot air is less, can climb in indoor, in the circulation of indoor formation overall thermal, improve indoor travelling comfort.
Because different exhaust outlets is heating or the air-out mode of exhaust outlets different under refrigerating state can bring impact to indoor travelling comfort, suitable air port is selected to blow for the ease of people, centrifugal blower in the present embodiment also comprises motion baffle plate 40, this motion baffle plate 40 is arranged in air channel 20, during centrifugal blower work, motion baffle plate 40 has first working position of being blocked by the first exhaust outlet 21 and second working position of being blocked by the second exhaust outlet 22.
According to above-mentioned structure, when centrifugal blower is in refrigerating state, motion baffle plate 40 is in its second working position, second exhaust outlet 22 is blocked, now, the cold wind that centrifugal blower produces can only flow out from the first exhaust outlet 21 of drain pan 10 upper-end surface, because cold wind density ratio air is high, cold wind can sink to spreading, and then improves indoor comfort degree; When centrifugal blower, to be in the state of heating real-time, motion baffle plate 40 is in its first working position, first exhaust outlet 21 is blocked, now, the hot blast that centrifugal blower produces can only flow out from the second exhaust outlet 22 of drain pan 10 lower end surface, and diffusion of climbing in indoor, make indoor hot air form overall circulation, and then effectively improve the comfort of human body.
Visible, according to centrifugal blower of the present invention, motion baffle plate 40 can be switched to diverse location according to different demands by user, and then makes centrifugal blower have different air-out modes, is convenient to improve indoor comfort.
Because the wind structure processed of centrifugal blower is centrifugal impeller, when in the process that centrifugal impeller rotates, for the ease of the wind in air channel 20 is thrown away drain pan 10, the angle between the air-out direction of the first exhaust outlet 21 in the present embodiment and horizontal plane is acute angle or obtuse angle.
As shown in Figure 2, when centrifugal blower is in refrigerating state, motion baffle plate 40 is in its second working position, second exhaust outlet 22 is blocked, the centrifugal impeller 30 in air channel 20 rotates in the counterclockwise direction, and now, the angle between the air-out direction of the first exhaust outlet 21 and horizontal plane is acute angle or obtuse angle, be convenient to the wind in air channel 20 to throw away, realize cool air towards the backward lower precipitation diffusion of upper left side blowout.As shown in Figure 3, in the second embodiment of the present invention, when centrifugal blower is in refrigerating state, motion baffle plate 40 is in its second working position, be rotated in a clockwise direction by the centrifugal impeller 30 that second exhaust outlet 22 blocks air channel 20, now, the angle between the air-out direction of the first exhaust outlet 21 and horizontal plane is acute angle or obtuse angle, be convenient to the wind in air channel 20 to throw away, realize cool air towards the backward lower precipitation diffusion of upper right blowout.
Similarly, for the ease of the wind in air channel 20 is thrown away drain pan 10, the angle between the air-out direction of the second exhaust outlet 22 and horizontal plane is also acute angle or obtuse angle.As shown in Figure 4, when centrifugal blower is in refrigeration Warm status, motion baffle plate 40 is in its first working position, first exhaust outlet 21 is blocked, the centrifugal impeller 30 in air channel 20 rotates in the counterclockwise direction, and now, the angle between the air-out direction of the first exhaust outlet 21 and horizontal plane is acute angle or obtuse angle, be convenient to the wind in air channel 20 to throw away, realize climbing after hot air blows out towards lower right a liter diffusion.As shown in Figure 5, in the second embodiment of the present invention, when centrifugal blower is in and heats state, motion baffle plate 40 is in its first working position, is blocked by the first exhaust outlet 21, and the centrifugal impeller 30 in air channel 20 is rotated in a clockwise direction, now, angle between the air-out direction of the first exhaust outlet 21 and horizontal plane is acute angle or obtuse angle, is convenient to the wind in air channel 20 to throw away, and realizes climbing after hot air blows out towards left bottom a liter diffusion.
Again shown in composition graphs 1, the air channel 20 in the present embodiment is for being arranged on the air-supply groove on drain pan 10, and the epimere of the first cell wall of air-supply groove is arc surface, and the epimere of the second cell wall of air-supply groove is the inclined-plane favouring horizontal plane.Can ensure that the angle between the air-out direction of first exhaust outlet 21 in the air channel 20 formed and horizontal plane is acute angle or obtuse angle on the one hand; On the other hand, arc shaped surface and inclined-plane wind path wall can also be utilized just to blow the wall in air channel 20 to the wind preventing centrifugal impeller 30 and produce and produce excessive noise.
Similarly, in order to reduce the noise in air channel, when centrifugal blower is in and heats state, be the inclined-plane favouring horizontal plane by the hypomere of the first cell wall of air-supply groove, and be arc surface by the hypomere of the second cell wall, can ensure that the angle between the air-out direction of first exhaust outlet 21 in the air channel 20 formed and horizontal plane is acute angle or obtuse angle on the one hand; On the other hand, arc shaped surface and inclined-plane wind path wall can also be utilized just to blow the wall in air channel 20 to the wind preventing centrifugal impeller 30 and produce and produce excessive noise.
Because wind when the first exhaust outlet 21 and the second exhaust outlet 22 is not positioned at the top and bottom of drain pan 10, and be centrifugal impeller 30 for the structure of wind processed, wind throws away with 360 degree from the centrifugal impeller 30, in the periphery of centrifugal impeller 30, the wind direction of relative both sides is square mutually, in order to be consistent with the air-out direction of centrifugal impeller 30, the first exhaust outlet 21 in the present embodiment is contrary with the air-out direction of the second exhaust outlet 22, is convenient to air-supply and noise reduction.
Preferably, for the ease of conveying cold-hot wind, centrifugal impeller 30 is arranged in the middle part of air channel 20, and the wall being positioned at the air channel 20 of the periphery of centrifugal impeller 30 is circular arc, reduces the generation of noise further.
Preferably, the motion baffle plate 40 in the present embodiment is circular arc block, is convenient to rotating in a circumferential direction and switching to block the first exhaust outlet 21 or the second exhaust outlet 22 at centrifugal impeller 30, and then makes centrifugal blower have different air-out mode.The thickness of the circular arc block in the present embodiment increases from the first end of circular arc block gradually to the second end, and the augment direction of the thickness of this circular arc block is consistent with the direction that the outboard end relative inner end of the blade of the centrifugal impeller 30 in the air channel 20 at its place departs from.Can know in conjunction with the first exhaust outlet 21 of centrifugal blower and the structure of the second exhaust outlet 22, because the thickness in the radial direction of motion baffle plate 40 at centrifugal impeller 30 increases gradually, when centrifugal blower is in refrigeration or heats state, thicker one end of motion baffle plate 40 is positioned at just at the first exhaust outlet 21 of air-out or just in the edge of the second exhaust outlet 22 of air-out, and can overlap with the plane at exhaust outlet place and form air-supply passage, improve the air-supply effect in air channel.
See shown in Fig. 6 to 8, according to according to the third embodiment of the invention of the present invention, provide a kind of centrifugal blower.This centrifugal blower comprises drain pan 10, at least two air channels 20 and at least two centrifugal impellers 30.Wherein, drain pan 10 has upper-end surface, lower end surface and the left surface be oppositely arranged and right flank, above-mentioned each air channel 20 extends to right flank (being equivalent to the second side in the first embodiment) from the left surface (being equivalent to the first side the first embodiment) of drain pan 10, each air channel 20 all has the first exhaust outlet 21 being positioned at drain pan 10 left surface and the second exhaust outlet 22 being positioned at drain pan 10 right flank, and the air-out direction being positioned at the first exhaust outlet 21 of drain pan 10 left surface in each air channel 20 is consistent; Above-mentioned at least two centrifugal impellers 30 are arranged in above-mentioned at least two air channels 20 correspondingly.
When centrifugal impeller 30 rotates, wind can be produced in air channel 20, and be delivered to the first exhaust outlet 21 and the second exhaust outlet 22 by air channel 20, and then freeze for people or heat in the outside wind in air channel 20 being delivered to centrifugal blower, the air-out direction being positioned at the first exhaust outlet 21 of drain pan 10 left surface again due to each air channel 20 is consistent, when centrifugal blower is in refrigerating state, the cold wind flowed out from each first exhaust outlet 21 of drain pan 10 left surface there will not be converging phenomenon, and then the cold wind crossed can be avoided directly to blow human body and cause human body uncomfortable.Centrifugal blower due to the present embodiment is provided with multiple air channel 20, and the centrifugal impeller 30 of wind processed is set accordingly in air channel 20, the product air quantity of whole centrifugal blower can be increased, and then improve the refrigeration of centrifugal blower or the efficiency that heats, the comfort of people can be improved.
In order to drive centrifugal impeller 30 to work, the middle part of the centrifugal impeller 30 of the present embodiment is provided with motor 50, and when motor 50 obtains electric rotation, drive centrifugal impeller 30 to rotate wind processed, structure is simple, is convenient to realize.
Preferably, the air-out direction being positioned at the second exhaust outlet 22 of drain pan 10 right flank of the present embodiment is consistent, when centrifugal blower be in heat state time, hot blast flows out from the right flank of drain pan 10, the density of hot air is less, can climb in indoor, in the circulation of indoor formation overall thermal, improve indoor travelling comfort.
Because different exhaust outlets is heating or air-out mode under refrigerating state can bring impact to indoor travelling comfort, suitable air port is selected to blow for the ease of people, centrifugal blower in the present embodiment also comprises motion baffle plate 40, this motion baffle plate 40 is arranged in air channel 20, during centrifugal blower work, motion baffle plate 40 has first working position of being blocked by the first exhaust outlet 21 and second working position of being blocked by the second exhaust outlet 22.
According to above-mentioned structure, when centrifugal blower is in refrigerating state, motion baffle plate 40 is in its second working position, second exhaust outlet 22 is blocked, now, the cold wind that centrifugal blower produces can only flow out from the first exhaust outlet 21 of drain pan 10 left surface, because cold wind density ratio air is high, cold wind can sink to spreading, and then improves indoor comfort degree; When centrifugal blower, to be in the state of heating real-time, motion baffle plate 40 is in its first working position, first exhaust outlet 21 is blocked, now, the hot blast that centrifugal blower produces can only flow out from the second exhaust outlet 22 of the right flank of drain pan 10, and diffusion of climbing in indoor, make indoor hot air form overall circulation, and then effectively improve the comfort of human body.
Visible, according to centrifugal blower of the present invention, motion baffle plate 40 can be switched to diverse location according to different demands by user, and then makes centrifugal blower have different air-out modes, is convenient to improve indoor comfort.
Because the wind structure processed of centrifugal blower is centrifugal impeller 30, when in the process that centrifugal impeller 30 rotates, for the ease of the wind in air channel 20 is thrown away drain pan 10, the angle between the air-out direction of the first exhaust outlet 21 in the present embodiment and left surface is acute angle or obtuse angle.
As shown in Figure 7, when centrifugal blower is in refrigerating state, motion baffle plate 40 is in its second working position, second exhaust outlet 22 is blocked, the centrifugal impeller 30 in air channel 20 is rotated in a clockwise direction, and now, the angle between the air-out direction of the first exhaust outlet 21 and left surface is acute angle or obtuse angle, be convenient to the wind in air channel 20 to throw away, realize cool air above the first side, blow out backward lower precipitation diffusion.
Similarly, for the ease of the wind in air channel 20 is thrown away drain pan 10, the angle between the air-out direction of the second exhaust outlet 22 and the right flank of drain pan 10 is also acute angle or obtuse angle.As shown in Figure 3, when centrifugal blower is in refrigeration Warm status, motion baffle plate 40 is in its first working position, first exhaust outlet 21 is blocked, the centrifugal impeller 30 in air channel 20 is rotated in a clockwise direction, and now, the angle between the air-out direction of the first exhaust outlet 21 and the right flank of drain pan 10 is acute angle or obtuse angle, be convenient to the wind in air channel 20 to throw away, realize hot air and to climb liter after the second side-lower blowout diffusion.
Again shown in composition graphs 6, air channel 20 in the present embodiment is for being arranged on the air-supply groove on drain pan 10, cell wall section first side corresponding to the first exhaust outlet 21 of the first cell wall of air-supply groove is arc surface, and the cell wall section corresponding to the first exhaust outlet 21 of the second cell wall of air-supply groove is for favouring the inclined-plane of the left surface of drain pan 10.Can ensure that the angle between the air-out direction of first exhaust outlet 21 in the air channel 20 formed and the left surface of drain pan 10 is acute angle or obtuse angle on the one hand; On the other hand, arc shaped surface and inclined-plane wind path wall can also be utilized just to blow the wall in air channel 20 to the wind preventing centrifugal impeller 30 and produce and produce excessive noise.
Similarly, in order to reduce the noise in air channel, when centrifugal blower is in and heats state, by the cell wall section corresponding to the second exhaust outlet 22 of the first cell wall of air-supply groove for favouring the inclined-plane in the face of drain pan 10, and the cell wall section corresponding to the second exhaust outlet 22 of the second cell wall is set to arc surface, can ensure that the angle between the air-out direction of first exhaust outlet 21 in the air channel 20 formed and the right flank of drain pan 10 is acute angle or obtuse angle on the one hand; On the other hand, arc shaped surface and inclined-plane wind path wall can also be utilized just to blow the wall in air channel 20 to the wind preventing centrifugal impeller 30 and produce and produce excessive noise.
Because wind when the first exhaust outlet 21 and the second exhaust outlet 22 is not positioned at left surface and the right flank of drain pan 10, and be centrifugal impeller 30 for the structure of wind processed, wind throws away with 360 degree from the centrifugal impeller 30, in the periphery of centrifugal impeller 30, the wind direction of relative both sides is square mutually, in order to be consistent with the air-out direction of centrifugal impeller 30, the first exhaust outlet 21 in the present embodiment is contrary with the air-out direction of the second exhaust outlet 22, is convenient to air-supply and noise reduction.
Preferably, for the ease of conveying cold-hot wind, centrifugal impeller 30 is arranged in the middle part of air channel 20, and the wall being positioned at the air channel 20 of the periphery of centrifugal impeller 30 is circular arc, reduces the generation of noise further.
Preferably, the motion baffle plate 40 in the present embodiment is circular arc block, is convenient to rotating in a circumferential direction and switching to block the first exhaust outlet 21 or the second exhaust outlet 22 at centrifugal impeller 30, and then makes centrifugal blower have different air-out mode.The thickness of the circular arc block in the present embodiment increases from the first end of circular arc block gradually to the second end, and the augment direction of the thickness of this circular arc block is consistent with the direction that the outboard end relative inner end of the blade of the centrifugal impeller 30 in the air channel 20 at its place departs from.Can know in conjunction with the first exhaust outlet 21 of centrifugal blower and the structure of the second exhaust outlet 22, because the thickness in the radial direction of motion baffle plate 40 at centrifugal impeller 30 increases gradually, when centrifugal blower is in refrigeration or heats state, thicker one end of motion baffle plate 40 is positioned at just at the first exhaust outlet 21 of air-out or just in the edge of the second exhaust outlet 22 of air-out, and can overlap with the plane at exhaust outlet place and form air-supply passage, improve the air-supply effect in air channel.
According to a further aspect in the invention, provide a kind of air conditioner, comprise centrifugal blower, centrifugal blower is above-mentioned centrifugal blower.
From above description, can find out, the above embodiments of the present invention achieve following technique effect: the refrigeration of centrifugal blower of the present invention and air conditioner or the efficiency heated high, the noise in air channel is low, and the optimal comfort impression of air motion composite human body in air channel.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a centrifugal blower, is characterized in that, comprising:
Drain pan (10), described drain pan (10) comprises the first side and the second side that are oppositely arranged, described drain pan (10) is provided with at least two air channels (20), each described air channel (20) all extends to described second side from described first side, each described air channel (20) all has the first exhaust outlet (21) being positioned at described first side and the second exhaust outlet (22) being positioned at described second side, and the air-out direction being positioned at described at least two the first exhaust outlets (21) of described first side is consistent;
At least two centrifugal impellers (30), at least two air channels (20) described in described at least two centrifugal impellers (30) are arranged on correspondingly.
2. centrifugal blower according to claim 1, is characterized in that, the air-out direction being positioned at described at least two the second exhaust outlets (22) of described second side is consistent.
3. centrifugal blower according to claim 1, is characterized in that, described centrifugal blower also comprises:
Motion baffle plate (40), described motion baffle plate (40) is arranged in described air channel (20), and described motion baffle plate (40) has first working position of described first exhaust outlet (21) being blocked and second working position of described second exhaust outlet (22) being blocked.
4. centrifugal blower according to claim 1, is characterized in that, the angle between the air-out direction of described first exhaust outlet (21) and described first side is acute angle or obtuse angle.
5. centrifugal blower according to claim 2, is characterized in that, the angle between the air-out direction of described second exhaust outlet (22) and the second side is acute angle or obtuse angle.
6. centrifugal blower according to claim 1, it is characterized in that, described air channel (20) is for being arranged on the air-supply groove on described drain pan (10), the cell wall section that first cell wall of described air-supply groove corresponds to described first exhaust outlet (21) is arc surface, and the second cell wall of described air-supply groove corresponds to the cell wall section of described first exhaust outlet (21) for favouring the inclined-plane of the first side.
7. centrifugal blower according to claim 6, it is characterized in that, described first cell wall correspond to described second exhaust outlet (22) cell wall section for favouring the inclined-plane of the second side, described second cell wall to correspond to the cell wall section of described second exhaust outlet (22) be arc surface.
8. centrifugal blower according to claim 1, it is characterized in that, described centrifugal impeller (30) is arranged on middle part, described air channel (20), and the wall being positioned at the air channel (20) of the periphery of described centrifugal impeller (30) is circular arc.
9. centrifugal blower according to claim 1, is characterized in that, the air-out direction of described first exhaust outlet (21) and described second exhaust outlet (22) is contrary.
10. centrifugal blower according to claim 3, it is characterized in that, described motion baffle plate (40) is circular arc block, the thickness of described circular arc block increases from the first end of described circular arc block gradually to the second end, and the augment direction of the thickness of described circular arc block is consistent with the direction that the outboard end relative inner end of the blade of the described centrifugal impeller (30) in the described air channel (20) at its place departs from.
11. centrifugal blowers according to any one of claim 1 to 10, it is characterized in that, described drain pan (10) has upper-end surface, lower end surface and the left surface be oppositely arranged and right flank, and described upper-end surface is described first side, and described lower end surface is described second side.
12. centrifugal blowers according to any one of claim 1 to 10, it is characterized in that, described drain pan (10) has upper-end surface, lower end surface and the left surface be oppositely arranged and right flank, and described left surface is described first side, and described right flank is described second side.
13. 1 kinds of air conditioners, comprise centrifugal blower, it is characterized in that, the centrifugal blower of described centrifugal blower according to any one of claim 1 to 12.
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| CN201410598768.3A CN104329272B (en) | 2014-10-29 | 2014-10-29 | Centrifugal blower and there is its air conditioner |
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| CN201410598768.3A CN104329272B (en) | 2014-10-29 | 2014-10-29 | Centrifugal blower and there is its air conditioner |
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| CN104329272B CN104329272B (en) | 2017-11-14 |
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| CN105240300A (en) * | 2015-11-18 | 2016-01-13 | 远大空品科技有限公司 | Centrifugal fan and air conditioner |
| CN105299762A (en) * | 2015-11-18 | 2016-02-03 | 远大空品科技有限公司 | Air conditioner indoor unit with centrifugal fans |
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| CN105299762A (en) * | 2015-11-18 | 2016-02-03 | 远大空品科技有限公司 | Air conditioner indoor unit with centrifugal fans |
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| Publication number | Publication date |
|---|---|
| CN104329272B (en) | 2017-11-14 |
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