CN105090104A - Air conditioner outdoor unit with inclined centrifugal fan and air conditioner - Google Patents
Air conditioner outdoor unit with inclined centrifugal fan and air conditioner Download PDFInfo
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- CN105090104A CN105090104A CN201510358838.2A CN201510358838A CN105090104A CN 105090104 A CN105090104 A CN 105090104A CN 201510358838 A CN201510358838 A CN 201510358838A CN 105090104 A CN105090104 A CN 105090104A
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Abstract
The invention discloses an air conditioner outdoor unit with an inclined centrifugal fan and an air conditioner and relates to the air conditioner technical field. The air-in and air-out directions of the air conditioner outdoor unit can be changed; the influence on outdoor environment is reduced; and air-in and air-out angles are made to be wider; the heat exchange performance of the air conditioner outdoor unit is improved. The problems of the big influence on the outdoor environment, the small air supply volume and the low efficiency of an air conditioner outdoor unit in the prior art are solved. The inclined centrifugal fan comprises an upper hub, a lower hub and vanes arranged between the upper hub and the lower hub. The tops of the vanes are connected with the upper hub, and the root portions of the vanes are connected with the lower hub. The edges, close to the circle centers of the upper hub and the lower hub, of the vanes are the air-in edges of the vanes, and the edges, far away from the circle centers of the upper hub and the lower hub, of the vanes are the air-out edges of the vanes. The side, close to the lower hub, of the inclined centrifugal fan is the air-in side; the side, close to the upper hub, of the inclined centrifugal fan and the outer sides of the air-out edges are air-out sides. The diameter of the lower hub is bigger than the diameter of the upper hub.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of air conditioner outdoor machine with oblique centrifugal cutter and air-conditioning.
Background technique
At present, the air-conditioning that market is sold is mainly split-type air conditioner, described split-type air conditioner is divided into indoor set and outdoor unit two-part, parts larger for the noise such as compressor and fan are placed in outdoor unit, compared with integrated air conditioner, have beautiful shape, style many, take up an area little, room noise is low, installation and repairing is convenient, the advantage such as economical and practical.
Fan is the important component part of air conditioner outdoor machine, and the performance on air conditioner outdoor machine and the impact on outdoor environment play material impact.
In prior art, the fan of air conditioner outdoor machine generally adopts axial fan, as shown in Figure 1, is a kind of structural representation of axial fan, and during axial flow fan work, blades push air is along flowing with the direction equidirectional of fan shaft.As shown in Fig. 2-Fig. 3, Fig. 2 is the structural representation of the air conditioner outdoor machine using axial fan, Fig. 3 is the plan view of the air conditioner outdoor machine using axial fan shown in Fig. 2, this air conditioner outdoor machine comprises front panel a, rear board (not shown), upper cover plate b and lower cover plate (not shown), front panel is provided with exhaust outlet c, rear board is provided with wind inlet (not shown), axial fan d is arranged at by front panel a, rear board, in the housing of upper cover plate b and lower cover plate composition, and be oppositely arranged with wind inlet and exhaust outlet c, axial fan rotates the airflow direction of generation for move along fan axial direction, air enters (fraction enters along air conditioner outdoor machine left direction) from wind inlet, blown out by exhaust outlet c, namely at air conditioner outdoor machine front-outlet.
When mounted, the exhaust outlet of air conditioner outdoor machine is generally arrange outwardly, if setting height(from bottom) is low, is easy to directly blow to people or other object, impacts outdoor environment at air-out direction, causes that human settlement's is inharmonious; The air-conditioning installation place of specifying mansion if be arranged on, these installed position many employings decorative grille, and decorative grille can stop the exhaust outlet of air conditioner outdoor machine, cause very large windage, reduce the air quantity of fan, be unfavorable for ventilating, make the hydraulic performance decline of air conditioner, and then reduce the Energy Efficiency Ratio of air-conditioning, make user experience air conditioner refrigerating heating effect and be deteriorated.
Summary of the invention
Embodiments of the invention provide a kind of air conditioner outdoor machine with oblique centrifugal cutter and air-conditioning, change the air inlet/outlet direction of air conditioner outdoor machine, reduce outdoor environment impact, and make the angle of air inlet/outlet wider, air quantity is more, improves air conditioner outdoor machine heat-exchange performance.
For achieving the above object, embodiments of the invention adopt following technological scheme:
First aspect, the embodiment of the present invention provides a kind of oblique centrifugal cutter, described oblique centrifugal cutter comprises wheel hub, lower hub and the blade be arranged between described upper wheel hub and described lower hub, the top of described blade is connected with described upper wheel hub, the root of described blade is connected with described lower hub, described blade is the air intake limit of blade near the edge in described upper wheel hub and the lower hub center of circle, described blade is the air-out edge of blade away from the edge in described upper wheel hub and the lower hub center of circle, described oblique centrifugal cutter is inlet air side near the side of described lower hub, be air side outside the side and described air-out edge of described upper wheel hub, the diameter of lower hub is greater than the diameter of wheel hub.
In conjunction with first aspect, in the first possible implementation of first aspect, described blade is curved from its pressure side side direction suction surface lateral bend, and blade presents the shape of bending from its root to top.
In conjunction with the first possible implementation of first aspect, in the implementation that the second of first aspect is possible, the ratio range of the diameter of described upper wheel hub and the diameter of described lower hub is 0.55 ~ 0.70.
In conjunction with the implementation that the second of first aspect is possible, in the third possible implementation of first aspect, the quantity of described blade is 25 ~ 47, and the quantity of described blade is odd number.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect, the air intake limit of described blade and the angular range of described upper wheel hub place plane are 85 ° ~ 95 °, and the air intake limit of described blade and the angular range of described lower hub place plane are 85 ° ~ 95 °.
In conjunction with the third possible implementation of first aspect, in the 5th kind of possible implementation of first aspect, the air-out edge of described blade and the angular range of described upper wheel hub place plane are 90 ° ~ 135 °, and the air-out edge of described blade and the angular range of described lower hub place plane are 90 ° ~ 135 °.
In conjunction with the 4th kind of possible implementation of first aspect, in the 6th kind of possible implementation of first aspect, the angular range of the air intake limit of described blade and the air-out edge of described blade is 45 ° ~ 65 °.
In conjunction with first aspect, the first possible implementation of first aspect is to any one in the 6th kind of possible implementation, in seven kinds of first aspect possible implementations, be extended with the extension part of sheet to the direction of described lower hub at the root of described blade, described extension part is connected with inside described lower hub away from the side on the air intake limit of described blade, and outer for described oblique centrifugal cutter crosswind can be carried out water conservancy diversion by this extension part to be introduced inside oblique centrifugal cutter.
The oblique flow that the embodiment of the present invention provides is to centrifugal cutter, comprise wheel hub, lower hub and be arranged at the blade between described upper wheel hub and described lower hub, the top of blade is connected with upper wheel hub, and the root of blade is connected with lower hub, and the diameter of lower hub is greater than the diameter of wheel hub.Adopt this structure, when oblique flow rotates to centrifugal cutter, air flows into from oblique flow to position, centrifugal cutter inlet side along the axis of motor shaft, and flow out along the axis of motor shaft and oblique flow to the tangent direction in centrifugal cutter blade rotary direction, due to oblique flow to centrifugal cutter compact structure, air quantity is large, efficiency is high, blade rotary noise is low, and wind-out range is wide, while guarantee air supplying distance, increases again air output, improve air-supply efficiency.When this oblique centrifugal cutter is applied to air conditioner outdoor machine, the inlet side of oblique centrifugal cutter can be arranged outwardly, air is entered from the front of air conditioner outdoor machine, and air is except flowing out from the axis of oblique centrifugal cutter, can also flow out from the tangent direction in oblique centrifugal cutter blade rotary direction, thus produce annular airflow around oblique centrifugal cutter, thus increase air output.Compare traditional axial fan, change air inlet/outlet direction, air-out direction is not easy directly to blow to people, reduces outdoor environment impact, is not easy the impact being subject to decorating building grid, and makes the angle of air inlet/outlet wider, improves air conditioner outdoor machine heat-exchange performance.
Second aspect, the embodiment of the present invention provides a kind of air conditioner outdoor machine, comprises casing, and described casing comprises front shroud and back shroud, and described front shroud is provided with wind inlet, and the back shroud of described casing is provided with exhaust outlet; The first possible implementation of first aspect or first aspect is provided with to the oblique centrifugal cutter described in any one in the 8th kind of possible implementation in described casing, the inlet air side of described oblique centrifugal cutter is relative with described wind inlet, the air side of described oblique centrifugal cutter is relative with described exhaust outlet, is provided with heat exchanger between the air side of described oblique centrifugal cutter and described exhaust outlet.
In conjunction with second aspect, in the first possible implementation of second aspect, described heat exchanger is U-shaped heat exchanger, and the concave surface of described U-shaped heat exchanger is relative with the air side of described oblique centrifugal cutter, and the convex surface of described U-shaped heat exchanger is relative with described exhaust outlet.
In conjunction with the first possible implementation of second aspect, in the implementation that the second of second aspect is possible, described air conditioner outdoor machine also comprises compressor, and described compressor is positioned at described heat exchanger side, is provided with dividing plate between described compressor and described heat exchanger.
The air conditioner outdoor machine that the embodiment of the present invention provides, comprise casing, casing comprises front shroud, and front shroud is provided with wind inlet, and the back shroud of casing is provided with exhaust outlet; Be provided with oblique centrifugal cutter in casing, the inlet air side of oblique centrifugal cutter is relative with wind inlet, and the air side of oblique centrifugal cutter is relative with described exhaust outlet, is provided with heat exchanger between the air side of oblique centrifugal cutter and described exhaust outlet.When oblique centrifugal cutter rotates, air flows into from the inlet air side position of oblique centrifugal cutter near lower hub along the axis of motor shaft, namely air enters from the front of air conditioner outdoor machine, and flow out along the axis of motor shaft and the tangent direction in oblique centrifugal cutter blade rotary direction, namely air is except flowing out from the axis of oblique centrifugal cutter, can also flow out from the tangent direction in oblique centrifugal cutter blade rotary direction, thus produce annular airflow around oblique centrifugal cutter, thus increase air output.Compare traditional air conditioner outdoor machine, change air inlet/outlet direction, air-out direction is not easy directly to blow to people, reduces outdoor environment impact, is not easy the impact being subject to decorating building grid, and due to oblique centrifugal cutter compact structure, air quantity is large, efficiency is high, blade rotary noise is low, and wind-out range is wide, while guarantee air supplying distance, make the angle of air inlet/outlet wider, increase again air output, improve air-supply efficiency, thus improve air conditioner outdoor machine heat-exchange performance.
The third aspect, the embodiment of the present invention provides a kind of air-conditioning, comprises the first possible implementation of second aspect or second aspect or the possible air conditioner outdoor machine described in implementation of the second.
The air-conditioning that the embodiment of the present invention provides, comprises air conditioner outdoor machine, and this air conditioner outdoor machine comprises casing, and described casing comprises front shroud and back shroud, and described front shroud is provided with wind inlet, and the back shroud of described casing is provided with exhaust outlet, oblique centrifugal cutter is provided with in casing, the inlet air side of oblique centrifugal cutter is relative with wind inlet, the air side of oblique centrifugal cutter is relative with exhaust outlet, heat exchanger is provided with between the air side of oblique centrifugal cutter and described exhaust outlet, when oblique centrifugal cutter rotates, air flows into from position, oblique centrifugal cutter inlet side along the axis of motor shaft, namely air enters from the front of air conditioner outdoor machine, and flow out along the axis of motor shaft and the tangent direction in oblique centrifugal cutter blade rotary direction, namely air is except flowing out from the axis of oblique centrifugal cutter, can also flow out from the tangent direction in oblique centrifugal cutter blade rotary direction, thus annular airflow is produced around oblique centrifugal cutter, thus increase air output.Compare traditional air-conditioning, air conditioner outdoor machine changes air inlet/outlet direction, air-out direction is not easy directly to blow to people, reduces outdoor environment impact, is not easy the impact being subject to decorating building grid, and due to oblique centrifugal cutter compact structure, air quantity is large, efficiency is high, blade rotary noise is low, and wind-out range is wide, while guarantee air supplying distance, make the angle of air inlet/outlet wider, increase again air output, improve air-supply efficiency, thus improve the heat-exchange performance of air-conditioning.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of axial fan in prior art;
Fig. 2 uses the external structure schematic diagram of the air conditioner outdoor machine of axial fan shown in Fig. 1 for prior art;
The complete section plan view that Fig. 3 is air conditioner outdoor machine shown in Fig. 2;
The structural representation of a kind of oblique centrifugal cutter that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 is five direction view of embodiment of the present invention blade;
Another angle schematic diagram of the oblique centrifugal cutter that Fig. 6 provides for the embodiment of the present invention;
Another angle schematic diagram of the oblique centrifugal cutter that Fig. 7 provides for the embodiment of the present invention;
The air conditioner outdoor machine forward erection drawing that Fig. 8 provides for the embodiment of the present invention;
Bowing to erection drawing of the air conditioner outdoor machine that Fig. 9 provides for the embodiment of the present invention;
The structural representation of a kind of U-shaped heat exchanger that Figure 10 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
On the one hand, the embodiment of the present invention provides a kind of oblique centrifugal cutter 1, see Fig. 4-Fig. 5, described oblique centrifugal cutter 1 comprises wheel hub 11, lower hub 12 and the blade 13 be arranged between described upper wheel hub 11 and described lower hub 12, the top 131 of described blade 13 is connected with described upper wheel hub 11, the root 132 of described blade 13 is connected with described lower hub 12, described blade 13 is the air intake limit 133 of blade near the edge in described upper wheel hub 11 and lower hub 12 center of circle, described blade 13 is the air-out edge 134 of blade away from the edge in described upper wheel hub 11 and lower hub 12 center of circle, described oblique centrifugal cutter 1 is inlet air side near the side of described lower hub 12, be air side outside the side and described air-out edge 134 of described upper wheel hub 11, the diameter of lower hub 12 is greater than the diameter of wheel hub 11.
Wherein, the air side of this oblique centrifugal cutter 1 comprises two regions, one is the region of side near described upper wheel hub 11, another is the region outside described air-out edge 134, when described blade 13 is arranged along the circumference of described upper wheel hub 11 and lower hub 12, the actual annular in the described oblique centrifugal cutter 1 of encirclement in region that the outside of all air-out edges 134 is formed.
The oblique centrifugal cutter 1 that the embodiment of the present invention provides, the blade 13 comprising wheel hub 11, lower hub 12 and be arranged between described upper wheel hub 11 and described lower hub 12, the top 131 of blade 13 is connected with upper wheel hub 11, the root 132 of blade 13 is connected with lower hub 12, and the diameter of lower hub 12 is greater than the diameter of wheel hub 11.Adopt this structure, when oblique centrifugal cutter 1 rotates, air flows into (v1 see Fig. 4) from the inlet air side position of oblique centrifugal cutter 1 near lower hub along the axis of motor shaft, and flow out along the axis (v2 see in Fig. 4) of motor shaft and the tangent direction (v3 see in Fig. 4) of oblique centrifugal cutter blade 13 sense of rotation, due to oblique centrifugal cutter 5 compact structure, air quantity is large, efficiency is high, blade rotary noise is low, and wind-out range is wide, while guarantee air supplying distance, increase again air output, improve air-supply efficiency.When this oblique flow motor 1 is applied to air conditioner outdoor machine, the close lower hub inlet air side of oblique centrifugal cutter 1 can be arranged outwardly, air is entered from the front of air conditioner outdoor machine, and air is except flowing out from the axis of oblique centrifugal cutter, can also flow out from the tangent direction of oblique centrifugal cutter blade 13 sense of rotation, thus produce annular airflow around oblique centrifugal cutter 1, thus increase air output.Compare traditional axial fan, change air inlet/outlet direction, air-out direction is not easy directly to blow to people, reduces outdoor environment impact, is not easy the impact being subject to decorating building grid, and makes the angle of air inlet/outlet wider, improves air conditioner outdoor machine heat-exchange performance.
Wherein, during use, upper wheel hub can be connected with motor, and the oblique centrifugal cutter of driven by motor rotates.
Wherein, the shape of blade does not affect the realization of the object of the invention, the embodiment of the present invention is not specifically limited, when it is generally acknowledged that the root width of blade is greater than the width of vane tip, air is more easily made to flow out from the tangent direction of oblique centrifugal cutter blade 13 sense of rotation, thus produce annular airflow around oblique centrifugal cutter, thus increase air output.
See Fig. 5, show the implementation of a kind of preferred blade of the present invention, wherein, the worm's eye view that (1) in Fig. 5 is blade 13, the right elevation that (2) in Fig. 5 are blade 13, the plan view that (3) in Fig. 5 are blade 13, the left view that (4) in Fig. 5 are blade 13, the right elevation that (5) in Fig. 5 are blade 13.See (1)-(5) of Fig. 5, in this preferred implementation, blade 13 is curved from its pressure side side direction suction surface lateral bend, and blade 13 presents the shape of bending from its root 132 to top 131.Adopt this structure, the wind at arc shaped blade 13 edge can be prevented not to be stressed from blade edge and flow out, thus increase the blast of oblique centrifugal cutter 1.
Wherein, the pressure side side of blade 13 is that oblique centrifugal cutter 1 is when rotating, the side that blade 13 contacts with wind, suction surface side is oblique centrifugal cutter 1 when rotating, the lee face side of blade 13, general, when oblique centrifugal cutter 1 rotates, blade 13 is the pressure side of blade 13 towards the one side of oblique centrifugal cutter 1 sense of rotation, and the one side of blade 13 oblique centrifugal cutter 1 sense of rotation is dorsad the suction surface of blade 13, be malleation in the pressure side side of blade 13, suction surface side is negative pressure.
In the preferred implementation of another kind of the present invention, the ratio range of the diameter of described upper wheel hub and the diameter of described lower hub is 0.55 ~ 0.70.Under certain rotating speed and air quantity situation, adopt above-mentioned parameter, the air output of oblique centrifugal cutter and wind speed can be made all to remain on high value, thus improve the performance of oblique centrifugal cutter.
It should be noted that, in the embodiment of the present invention, the diameter of upper wheel hub refers to the ultimate range between peripheral 2 of wheel hub, and the diameter of lower hub refers to the ultimate range between peripheral 2 of lower hub.The realization of width on the object of the invention of the cross section of upper wheel hub and lower hub does not form impact, can arrange according to actual needs, such as, considers the stability of oblique centrifugal cutter, and what the width of upper wheel hub and lower hub cross section can be arranged is slightly wide; Consider the volume of oblique centrifugal cutter, what the width of upper wheel hub and lower hub cross section can be arranged is slightly narrow.
In the preferred implementation of another kind of the present invention, the quantitative range of described blade is 25 ~ 47.Adopt above-mentioned parameter, the air quantity of air conditioner outdoor machine can be increased further, reduce noise simultaneously.The quantity of described blade is odd number.Odd number of blades is set and not easily produces resonance, and noise is lower, rotate more steady.When blade is installed, preferably blade 13 is installed around fan hub equal angles.
See Fig. 6, in the preferred implementation of another kind of the present invention, the air intake limit 133 of described blade 13 is 85 ° ~ 95 ° with the angle a1 scope of described upper wheel hub 11 place plane, and the air intake limit 133 of described blade 13 is 85 ° ~ 95 ° with the angle a2 scope of described lower hub 12 place plane.See Fig. 7, in the preferred implementation of another kind of the present invention, the air-out edge 134 of described blade 13 is 90 ° ~ 135 ° with the angle b1 scope of described upper wheel hub 11 place plane, and the air-out edge 134 of described blade 13 is 90 ° ~ 135 ° with the angular range b2 of described lower hub 12 place plane.In the preferred implementation of another kind of the present invention, the angular range of the air intake limit of described blade and the air-out edge of described blade is 45 ° ~ 65 °.Adopt said structure parameter, blade can be made to be in suitable inclination and bending state, the wind at blade 13 edge can be prevented not to be stressed from blade edge and flow out, thus increase the blast of oblique centrifugal cutter 1.
In the preferred implementation of another kind of the present invention, see Fig. 6, be extended with the extension part 135 of sheet to the direction of described lower hub at the root of described blade 13, described extension part 135 is connected with inside described lower hub away from the side on the air intake limit of described blade 13, thus blade 13 is connected with lower hub 12 by extension part 135.Extension part 135 pairs of air play the effect of guiding, the outer crosswind of oblique centrifugal cutter 1 can be carried out water conservancy diversion and introduce inside oblique centrifugal cutter 1, thus can improve the wind pushing performance of blade, increase the air quantity of air conditioner outdoor machine further, reduce noise simultaneously.
It should be noted that, above-mentioned various preferred implementation can combination in any, and the superposition of respective effect after can combination being reached.
On the other hand, see Fig. 8, Fig. 9, the embodiment of the present invention provides a kind of air conditioner outdoor machine, comprise casing 2, described casing 2 comprises front shroud 21 and back shroud 22, and described front shroud 21 is provided with wind inlet 3, and the back shroud 22 of described casing 2 is provided with exhaust outlet (not shown); The oblique centrifugal cutter 1 described in above-mentioned any embodiment is provided with in described casing 2, the inlet air side of described oblique centrifugal cutter 1 is relative with described wind inlet 3, the air side of described oblique centrifugal cutter 1 is relative with described exhaust outlet, is provided with heat exchanger 4 between the air side of described oblique centrifugal cutter 1 and described exhaust outlet.
The air conditioner outdoor machine that the embodiment of the present invention provides, when oblique centrifugal cutter 1 rotates, air flows into from the inlet air side position of oblique centrifugal cutter 1 near lower hub along the axis of motor shaft, namely air enters from the front of air conditioner outdoor machine, and flow out along the axis of motor shaft and the tangent direction in oblique centrifugal cutter blade rotary direction, namely air is except flowing out from the axis of oblique centrifugal cutter 1, can also flow out from the tangent direction in oblique centrifugal cutter 1 blade rotary direction, thus annular airflow is produced around oblique centrifugal cutter 1, thus increase air output.Compare traditional air conditioner outdoor machine, change air inlet/outlet direction, air-out direction is not easy directly to blow to people, reduces outdoor environment impact, is not easy the impact being subject to decorating building grid, and due to oblique centrifugal cutter compact structure, air quantity is large, efficiency is high, blade rotary noise is low, and wind-out range is wide, while guarantee air supplying distance, make the angle of air inlet/outlet wider, increase again air output, improve air-supply efficiency, thus improve air conditioner outdoor machine heat-exchange performance.
See Fig. 9, upper arrow is depicted as the air-out direction of exhaust outlet.The setting area of described exhaust outlet can be corresponding with the section area of oblique centrifugal cutter 1, or also can arrange larger.The embodiment of the present invention does not limit this.
Preferably, the whole surface of the back shroud 22 of described housing 2 sets out air port, larger air-out area can be obtained, be conducive to air conditioner outdoor machine internal heat dissipating, so not only can improve refrigeration and the heating capacity of air-conditioning, and the working life of the inner each device of air conditioner outdoor machine can be extended.
In a kind of preferred implementation, see Figure 10, described heat exchanger 4 is U-shaped heat exchanger 4, and the concave surface of described U-shaped heat exchanger 4 is relative with the air side of described oblique centrifugal cutter 1, and the convex surface of described U-shaped heat exchanger is relative with described exhaust outlet.Air flows in casing 2 through wind inlet 3, carries out heat exchange through heat exchanger 4, and the heat exchange area comparing ordinary heat exchanger due to U-shaped heat exchanger 4 increases, thus improves the heat exchange efficiency of air conditioner outdoor machine.
Wherein, described U-shaped heat exchanger 4 can, for arrange heat exchanger, also can be one-row heat exchanger more.The embodiment of the present invention does not limit this.It should be noted that, when adopting one-row heat exchanger, the heat transfer effect of air conditioner outdoor machine can be improved, when heat exchange efficiency is identical, adopt one-row heat exchanger, the cost per unit heat exchange efficiency of material can be improved, effectively utilize and save material, simultaneously, adopt one-row heat exchanger can also reduce the resistance of described U-shaped heat exchanger 4 pairs of air-flows, the decline of air quantity can be reduced, promote the air quantity through described U-shaped heat exchanger 4, improve the heat transfer effect of air-conditioning further.
Preferably, described U-shaped heat exchanger 4 is finned heat exchanger.Fin type heat exchanger structure is simple, manufacture easily, and heat transfer efficiency is high.
In another kind of preferred implementation, see Fig. 8, Fig. 9, described air conditioner outdoor machine also comprises compressor 5, and described compressor 5 is positioned at described heat exchanger 4 side, is provided with dividing plate 6 between described compressor 5 and described heat exchanger 4.
Wherein, in the embodiment of the present invention, the Placement of compressor 5 and working principle with reference to prior art, can not repeat them here.Described compressor 5 is positioned at the side of described oblique centrifugal cutter 1, can reduce the resistance of air flowing, improve the heat transfer effect of described heat exchanger 4
Wherein, the setting of dividing plate 6, dividing plate 6 and described housing 2 is made to form compressor room 7 and regenerator volume 8, described compressor 5 is positioned at described compressor room 7, described heat exchanger 4 and oblique centrifugal cutter 1 are positioned at described regenerator volume 8, wherein, oblique centrifugal cutter 1 can be fixed in described regenerator volume 8 by blower tray 9.By arranging described dividing plate 6, described compressor 5 is kept apart with oblique centrifugal cutter 1, in air flow after only having a part for described dividing plate 6 to be exposed to the heat exchange of described heat exchanger 4, all the other several of described compressor room 7 are all in the air of normal convection, the coefficient of heat transfer of air and described compressor room 7 can be reduced, thus the heat loss reduced around described compressor 5, improve heat utilization ratio.Meanwhile, by arranging described dividing plate 6, also there is the effect reducing described compressor 5 noise.
Again on the one hand, the embodiment of the present invention additionally provides a kind of air-conditioning, comprises the air conditioner outdoor machine described in above-mentioned any embodiment.
The air-conditioning that the embodiment of the present invention provides, see Fig. 8, Fig. 9, air conditioner outdoor machine comprises casing 2, and described casing 2 comprises front shroud 21 and back shroud 22, described front shroud 21 is provided with wind inlet 3, the back shroud 22 of described casing 2 is provided with exhaust outlet (not shown), oblique centrifugal cutter 1 is provided with in casing 2, the inlet air side of oblique centrifugal cutter 1 is relative with wind inlet 3, heat exchanger 4 is provided with between the air side of oblique centrifugal cutter 1 and described exhaust outlet, when oblique centrifugal cutter 1 rotates, air enters 1 wind side position from oblique centrifugal cutter and flows into along the axis of motor shaft, namely air enters from the front of air conditioner outdoor machine, and flow out along the axis of motor shaft and the tangent direction in oblique centrifugal cutter blade rotary direction, namely air is except flowing out from the axis of oblique centrifugal cutter 1, can also flow out from the tangent direction in oblique centrifugal cutter 1 blade rotary direction, thus annular airflow is produced around oblique centrifugal cutter 1, thus increase air output.Compare traditional air-conditioning, air conditioner outdoor machine changes air inlet/outlet direction, air-out direction is not easy directly to blow to people, reduces outdoor environment impact, is not easy the impact being subject to decorating building grid, and due to oblique centrifugal cutter compact structure, air quantity is large, efficiency is high, blade rotary noise is low, and wind-out range is wide, while guarantee air supplying distance, make the angle of air inlet/outlet wider, increase again air output, improve air-supply efficiency, thus improve the heat-exchange performance of air-conditioning.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (12)
1. an oblique centrifugal cutter, it is characterized in that, described oblique centrifugal cutter comprises wheel hub, lower hub and the blade be arranged between described upper wheel hub and described lower hub, the top of described blade is connected with described upper wheel hub, the root of described blade is connected with described lower hub, described blade is the air intake limit of described blade near the edge in described upper wheel hub and the lower hub center of circle, described blade is the air-out edge of described blade away from the edge in described upper wheel hub and the lower hub center of circle, described oblique centrifugal cutter is inlet air side near the side of described lower hub, the close side of described upper wheel hub and the outside of described air-out edge are air side, the diameter of described lower hub is greater than the diameter of described upper wheel hub.
2. oblique centrifugal cutter according to claim 1, is characterized in that, described blade is curved from its pressure side side direction suction surface lateral bend, and blade presents the shape of bending from its root to top.
3. oblique centrifugal cutter according to claim 2, is characterized in that, the ratio range of the diameter of described upper wheel hub and the diameter of described lower hub is 0.55 ~ 0.70.
4. oblique centrifugal cutter according to claim 3, is characterized in that, the quantitative range of described blade is 25 ~ 47, and the quantity of described blade is odd number.
5. oblique centrifugal cutter according to claim 4, it is characterized in that, the air intake limit of described blade and the angular range of described upper wheel hub place plane are 85 ° ~ 95 °, and the air intake limit of described blade and the angular range of described lower hub place plane are 85 ° ~ 95 °.
6. oblique centrifugal cutter according to claim 5, is characterized in that, the air-out edge of described blade and the angle of described upper wheel hub place plane are 90 ° ~ 135 °, and the air-out edge of described blade and the angle of described lower hub place plane are 90 ° ~ 135 °.
7. oblique centrifugal cutter according to claim 5, is characterized in that, the angle of the air intake limit of described blade and the air-out edge of described blade is 45 ° ~ 65 °.
8. the oblique centrifugal cutter according to any one of claim 1 ~ 7, it is characterized in that, be extended with the extension part of sheet to the direction of described lower hub at the root of described blade, described extension part is connected with inside described lower hub away from the side on the air intake limit of described blade.
9. an air conditioner outdoor machine, is characterized in that, comprises casing, and described casing comprises front shroud and back shroud, and described front shroud is provided with wind inlet, and the back shroud of described casing is provided with exhaust outlet; The oblique centrifugal cutter as described in any one of claim 1 ~ 8 is provided with in described casing, the inlet air side of described oblique centrifugal cutter is relative with the wind inlet of described casing, the air side of described oblique centrifugal cutter is relative with the exhaust outlet of described casing, is provided with heat exchanger between the air side of described oblique centrifugal cutter and the exhaust outlet of described casing.
10. air conditioner outdoor machine according to claim 9, is characterized in that, described heat exchanger is U-shaped heat exchanger, and the concave surface of described U-shaped heat exchanger is relative with the air side of described oblique centrifugal cutter, and the convex surface of described U-shaped heat exchanger is relative with described exhaust outlet.
11. air conditioner outdoor machines according to claim 10, is characterized in that, described air conditioner outdoor machine also comprises compressor, and described compressor is positioned at described heat exchanger side, is provided with dividing plate between described compressor and described heat exchanger.
12. 1 kinds of air-conditionings, is characterized in that, comprise the air conditioner outdoor machine according to any one of claim 9 ~ 11.
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| CN201510358838.2A CN105090104A (en) | 2015-06-25 | 2015-06-25 | Air conditioner outdoor unit with inclined centrifugal fan and air conditioner |
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| CN201510358838.2A CN105090104A (en) | 2015-06-25 | 2015-06-25 | Air conditioner outdoor unit with inclined centrifugal fan and air conditioner |
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| CN105090104A true CN105090104A (en) | 2015-11-25 |
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| CN106403135A (en) * | 2016-10-21 | 2017-02-15 | 海信（山东）空调有限公司 | Indoor unit of air conditioner |
| CN106438466A (en) * | 2016-11-03 | 2017-02-22 | 海信（山东）空调有限公司 | Centrifugal fan and air-conditioner indoor unit |
| CN108119963A (en) * | 2017-12-20 | 2018-06-05 | 珠海格力电器股份有限公司 | Outdoor unit and with its air conditioner |
| CN108661929A (en) * | 2018-04-28 | 2018-10-16 | 青岛海信日立空调系统有限公司 | A kind of centrifugal blower and ceiling embedded type air conditioner indoor unit |
| CN110056965A (en) * | 2019-05-10 | 2019-07-26 | 青岛海尔空调器有限总公司 | Wall-hanging indoor unit of air conditioner |
| CN110056968A (en) * | 2019-05-10 | 2019-07-26 | 青岛海尔空调器有限总公司 | Wall-hanging indoor unit of air conditioner |
| WO2019242406A1 (en) * | 2018-06-20 | 2019-12-26 | 广东美的制冷设备有限公司 | Outdoor unit of air conditioner |
| US10982681B2 (en) | 2018-08-22 | 2021-04-20 | Aia Vital Components (China) Co., Ltd. | Fan blade structure and centrifugal fan |
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Address after: 266736 Hisense Road 1, South Village Town, Pingdu City, Qingdao, Shandong Applicant after: Hisense (Shandong) Air-conditioning Co., Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Qingdao, Shandong Province, No. 151 Applicant before: Hisense (Shandong) Air-conditioning Co., Ltd. |
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Application publication date: 20151125 |
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